Ordering number : ENN*6693

CMOS IC

LC863232/28/24/20/16A

8-Bit Single Chip Microcontroller

Preliminary
Overview
The LC863232/28/24/20/16A are 8-bit single chip microcontrollers with the following on-chip functional blocks:
- CPU : Operable at a minimum bus cycle time of 0.424µs
- On-chip ROM capacity
Program ROM : 32K/28K/24K/20K/16K bytes
CGROM : 16K bytes
- On-chip RAM capacity : 512 bytes
- OSD RAM : 352 × 9 bits
- Closed-Caption TV controller and the on-screen display controller
- Closed-Caption data slicer
- Four channels × 8-bit AD Converter
- Three channels × 7-bit PWM
- Two 16-bit timer/counters, 14-bit base timer
- 8-bit synchronous serial interface circuit
- IIC-bus compliant serial interface circuit (Multi-master type)
- ROM correction function
- 16-source 10-vectored interrupt system
- Integrated system clock generator and display clock generator
Only one X’tal oscillator (32.768kHz) for PLL reference is used for both generators
TV control and the Closed Caption function
All of the above functions are fabricated on a single chip

Ver.1.01 91400 RM (IM) HS No.6693-1/20

N1798
 LC863232/28/24/20/16A

Features
(1) Read-Only Memory (ROM) : 32768 × 8 bits / 28672 × 8 bits / 24576 × 8 bits
20480 × 8 bits / 16384 × 8 bits for program
16128 × 8 bits for CGROM

(2) Random Access Memory (RAM) : 512 × 8 bits (including 128 bytes for ROM correction function)
352 × 9 bits (for CRT display)

(3) OSD functions

- Screen display : 36 characters × 16 lines (by software)
- RAM : 352 words (9 bits per word)
Display area : 36 words × 8 lines
Control area : 8 words × 8 lines
- Characters
Up to 252 kinds of 16 × 32 dot character fonts
(4 characters including 1 test character are not programmable)
Each font can be divided into two parts and used as two fonts :
a 16×17 dot and 8 × 9 dot character font
At least 111 characters need to be divide to display the caption fonts.
- Various character attributes
Character colors : 16 colors
Character background colors : 16 colors
Fringe / shadow colors : 16 colors
Full screen colors : 16colors
Rounding
Underline
Italic character (slanting)
- Attribute can be changed without spacing
- Vertical display start line number can be set for each row independently (Rows can be overlapped)
- Horizontal display start position can be set for each row independently
- Horizontal pitch (bit 9 - 16)*1 and vertical pitch (bit-32) can be set for each row independently
- Different display modes can be set for each row independently
Caption • Text mode / OSD mode 1 / OSD mode 2 (Quarter size) / Simplifed graphic mode
- Ten character sizes *1
Horez. × Vert. = (1 × 1), (1 × 2), (2 × 2), (2 × 4), (0.5 × 0.5)
(1.5 × 1), (1.5 × 2), (3 × 2), (3 × 4), (0.75 × 0.5)
- Shuttering and scrolling on each row
- Simplified Graphic Display
*1 Note : range depends on display mode : refer to the manual for details.

(4) Data Slicer (NTSC)

- Line 21 closed caption data and XDS data extraction

(5) Bus Cycle Time / Instruction-Cycle Time

Bus cycle time Instruction cycle time System clock oscillation Oscillation Frequency Voltage
0.424µs 0.848µs Internal VCO 14.156MHz 4.5V to 5.5V
(Ref : X’tal 32.768kHz)
7.5µs 15.0µs Internal RC 800kHz 4.5V to 5.5V
183.1µs 366.2µs Crystal 32.768kHz 4.5V to 5.5V

(6) Ports
- Input / Output Ports : 5 ports (28 terminals)
Data direction programmable in nibble units : 1 port (8 terminals)
(If the N-ch open drain output is selected by option, the corresponding port data can be read in output mode.)
Data direction programmable for each bit individually : 4 ports (20 terminals)

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(7) AD converter
- 4 channels × 8-bit AD converters

(8) Serial interfaces

- IIC-bus compliant serial interface (Multi-master type)
Consists of a single built-in circuit with two I/O channels. The two data lines and two clock lines can be connected
internally.
- Synchronous 8-bit serial interface

(9) PWM output

- 3 channels × 7-bit PWM

(10) Timer
- Timer 0 : 16-bit timer/counter
With 2-bit prescaler + 8-bit programmable prescaler
Mode 0 : Two 8-bit timers with a programmable prescaler
Mode 1 : 8-bit timer with a programmable prescaler + 8-bit counter
Mode 2 : 16-bit timer with a programmable prescaler
Mode 3 : 16-bit counter
The resolution of timer is 1 tCYC.
- Timer 1 : 16-bit timer/PWM
Mode 0 : Two 8-bit timers
Mode 1 : 8-bit timer + 8-bit PWM
Mode 2 : 16-bit timer
Mode 3 : Variable bit PWM (9 to 16 bits)
In mode0/1,the resolution of Timer1/PWM is 1 tCYC
In mode2/3,the resolution is selectable by program; tCYC or 1/2 tCYC
- Base timer
Generate every 500ms overflow for a clock application (using 32.768kHz crystal oscillation for the base timer clock)
Generate every 976µs, 3.9ms, 15.6ms, 62.5ms overflow (using 32.768kHz crystal oscillation for the base timer
clock)
Clock for the base timer is selectable from 32.768kHz crystal oscillation, system clock or programmable prescaler
output of Timer 0

(11) Remote control receiver circuit (connected to the P73/INT3/T0IN terminal)

- Noise rejection function
- Polarity switching

(12) Watchdog timer

External RC circuit is required
Interrupt or system reset is activated when the timer overflows

(13) ROM correction function

Max 128 bytes / 2 addresses

(14) Interrupts
- 16 sources 10 vectored interrupts
1. External Interrupt INT0
2. External Interrupt INT1
3. External Interrupt INT2, Timer/counter T0L (Lower 8 bits)
4. External Interrupt INT3, base timer
5. Timer/counter T0H (Upper 8 bits)
6. Timer T1H,T1L
7. SIO0
8. Data slicer
9. Vertical synchronous signal interrupt ( VS ), horizontal line ( HS ), AD
10. IIC, Port 0

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- Interrupt priority control
Three interrupt priorities are supported (low, high and highest) and multi-level nesting is possible. Low or high
priority can be assigned to the interrupts from 3 to 10 listed above. For the external interrupt INT0 and INT1, high
or highest priority can be set.

(15) Sub-routine stack level

- A maximum of 128 levels (stack is built in the internal RAM)

(16) Multiplication/division instruction

- 16 bits × 8 bits (7 instruction cycle times)
- 16 bits / 8 bits (7 instruction cycle times)

(17) 3 oscillation circuits

- Built-in RC oscillation circuit used for the system clock
- Built-in VCO circuit used for the system clock and OSD
- X’tal oscillation circuit used for base timer, system clock and PLL reference

(18) Standby function

- HALT mode
The HALT mode is used to reduce the power dissipation. In this operation mode, the program execution is
stopped. This mode can be released by the interrupt request or the system reset.
- HOLD mode
The HOLD mode is used to stop the oscillations; RC (internal), VCO, and X’tal oscillations. This mode can be
released by the following conditions.
• Pull the reset terminal ( RES ) to low level.
• Feed the selected level to either P70/INT0 or P71/INT1.
• Input the interrupt condition to Port 0.

(19) Package
- DIP42S
- QIP48E

(20) Development tools

- Flash EEPROM: LC86F3248A
- Evaluation chip: LC863096
- Emulator: EVA86000 (main) + ECB863200 (evaluation chip board)
+ POD863200 (pod: DIP42S) or POD863201 (QIP48E)

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System Block Diagram

Interrupt Control IR PLA

Standby Control ROM

X’tal

Generator
Clock
RC

VCO
PC

PLL

IIC ROM Correct Control ACC

SIO0 XRAM B Register

Timer 0 Bus Interface C Register

Timer 1 Port 1
ALU

Base Timer Port 6

ADC Port 7 PSW

INT0-3 Port 8 RAR

Noise Rejection Filter

PWM RAM

CGROM
OSD
Data Slicer Control Stack Pointer
Circuit VRAM

Port 0

Watch Dog Timer

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Pin Assignment

• DIP42S

P10/SO0 1 42 P07
P11/SI0 2 41 P06
P12/SCK0 3 40 P05
P13/PWM1 4 39 P04
Package Dimension
P14/PWM2 5 38 P03
(unit : mm)
P15/PWM3 6 37 P02 3025B
P16 7 36 P01
P17/PWM 8 35 P00
VSS 9 34 P73/INT3/T0IN
XT1 10 33 P72/INT2/T0IN
XT2 11 32 P71/INT1
VDD 12 31 P70/INT0
P84/AN4 13 30 P63/SCLK1
P85/AN5 14 29 P62/SDA1
P86/AN6 15 28 P61/SCLK0
P87/AN7 16 27 P60/SDA0
RES 17 26 I
SANYO : DIP-42S(600mil)
FILT 18 25 BL
CVIN 19 24 B

VS 20 23 G
HS 21 22 R

• QIP48E
P14/PWM2
P13/PWM1
P12/SCK0

P10/SO0
P11/SI0

P07
P06
P05
P04
P03
NC

NC

Package Dimension
(unit : mm)
48
47
46
45
44
43
42
41
40
39
38
37

3156
P15/PWM3 1 36 P02
P16 2 35 P01
P17/PWM 3 34 P00
VSS 4 33 NC
XT1 5 32 P73/INT3/T0IN
XT2 6 31 P72/INT2/T0IN
VDD 7 30 P71/INT1
NC 8 29 P70/INT0
P84/AN4 9 28 P63/SCLK1
P85/AN5 10 27 P62/SDA1
P86/AN6 11 26 P61/SCLK0
P87/AN7 12 25 P60/SDA0
13
14
15
16
17
18
19
20
21
22
23
24

SANYO : QIP-48E
I
G

BL
FILT
CVIN
RES

NC

VS
HS
R

NC

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Pin Description

Pin Description Table

Terminal I/O Function Description Option
VSS - Negative power supply
XT1 I Input terminal for crystal oscillator
XT2 O Output terminal for crystal oscillator
VDD - Positive power supply
RES I Reset terminal
FILT O Filter terminal for PLL
CVIN I Video signal input terminal
VS I Vertical synchronization signal input terminal
HS I Horizontal synchronization signal input terminal
R O Red (R) output terminal of RGB image output
G O Green (G) output terminal of RGB image output
B O Blue (B) output terminal of RGB image output
I O Intensity ( I ) output terminal of RGB image output
BL O Fast blanking control signal
Switch TV image signal and caption/OSD image signal
Port 0 •8-bit input/output port, Pull-up resistor
P00 - P07 I/O Input/output can be specified in nibble unit provided/not provided
•Other functions Output Format
HOLD release input CMOS/Nch-OD
Interrupt input
Port 1 •8-bit input/output port Output Format
P10 - P17 I/O Input/output can be specified in a bit CMOS/Nch-OD
•Other functions
P10 SIO0 data output
P11 SIO0 data input/bus input/output
P12 SIO0 clock input/output
P13 PWM1 output
P14 PWM2 output
P15 PWM3 output
P17 Timer1 (PWM) output

Port 6 •4-bit input/output port

P60 - P63 I/O Input/output can be specified for each bit
•Other functions
P60 IIC0 data I/O
P61 IIC0 clock output
P62 IIC1 data I/O
P63 IIC1 clock output

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Terminal I/O Function Description Option

Port 7 •4-bit input/output port
P70 I/O Input or output can be specified for each bit
P71 - P73 •Other function
P70 INT0 input/HOLD release input/
Nch-Tr. output for wachdog timer
P71 INT1 input/HOLD release input
P72 INT2 input/Timer 0 event input
P73 INT3 input (noise rejection filter
connected)/
Timer 0 event input
Interrupt receiver format, vector addresses
rising falling rising/ H level L level vector
falling
INT0 enable enable disable enable enable 03H
INT1 enable enable disable enable enable 0BH
INT2 enable enable enable disable disable 13H
INT3 enable enable enable disable disable 1BH
Port 8 •4-bit input/output port
P84 - P87 I/O Input or output can be specified for each bit
•Other function
AD converter input port (4 lines)
NC - Unused terminal
Leave open

• Output form and existance of pull-up resistor for all ports can be specified for each bit.
• Programmable pull-up resistor is always connected regardless of port option, CMOS or N-ch open drain output in port 1.

• Port status in reset

Terminal I/O Pull-up resistor status at selecting pull-up option

Port 0 I Pull-up resistor OFF, ON after reset release
Port 1 I Programmable pull-up resistor OFF

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1. Absolute Maximum Ratings at VSS=0V and Ta=25°C

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
Supply voltage VDDMAX VDD -0.3 +7.0 V
Input voltage VI(1) • RES , HS , VS , -0.3 VDD+0.3
CVIN
Output voltage VO(1) R, G, B, I, BL, -0.3 VDD+0.3
FILT
Input/output VIO •Ports 0, 1, 6, 7, -0.3 VDD+0.3
voltage 8
High Peak IOPH(1) •Ports 0, 1, 7, 8 •CMOS output -4 mA
level output •For each pin.
output current IOPH(2) R, G, B, I, BL •CMOS output -5
current •For each pin.
Total ∑IOAH(1) •Ports 0, 1 The total of all -20
output pins.
current ∑IOAH(2) Ports 7, 8 The total of all -10
pins.
∑IOAH(3) R, G, B, I, BL The total of all -15
pins.
Low Peak IOPL(1) Ports 0, 1, 6, 8 For each pin. 20
level output IOPL(2) Port 7 For each pin. 15
output current IOPL(3) R, G, B, I, BL For each pin. 5
current Total ∑IOAL(1) Ports 0, 1 The total of all 40
output pins.
current ∑IOAL(2) Ports 6, 7, 8 The total of all 40
pins.
∑IOAL(3) R, G, B, I, BL The total of all 15
pins.
Maximum power Pdmax DIP42S Ta=-10 to +70°C 800 mW
dissipation QIP48E 400
Operating Topr -10 +70 °C
temperature
range
Storage Tstg -55 +125
temperature
range

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2. Recommended Operating Range at Ta=-10°C to +70°C, VSS=0V

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
Operating VDD(1) VDD 0.844µs ≤ tCYC ≤ 4.5 5.5 V
supply voltage 0.852µs
range VDD(2) 4µs ≤ tCYC ≤ 4.5 5.5
400µs
Hold voltage VHD VDD RAMs and the 2.0 5.5
registers data are
kept in HOLD
mode.
High level input VIH(1) Port 0 (Schumitt) Output disable 4.5 - 5.5 0.6VDD VDD
voltage
VIH(2) •Ports 1,6 (Schumitt) Output disable 4.5 - 5.5 0.75VDD VDD
•Port 7 (Schumitt)
port input/interrupt
• HS , VS , RES
(Schumitt)
VIH(3) Port 70 Output disable 4.5 - 5.5 VDD-0.5 VDD
Watchdog timer input
VIH(4) •Port 8 Output disable 4.5 - 5.5 0.7VDD VDD
port input
Low level input VIL(1) Port 0 (Schumitt) Output disable 4.5 - 5.5 VSS 0.2VDD
voltage VIL(2) •Ports 1,6 (Schumitt) Output disable 4.5 - 5.5 VSS 0.25VDD
•Port 7 (Schumitt)
port input/interrupt
• HS , VS , RES
(Schumitt)
VIL(3) Port 70 Output disable 4.5 - 5.5 VSS 0.6VDD
Watchdog timer input
VIL(4) Port 8 Output disable 4.5 - 5.5 VSS 0.3VDD
port input
CVIN VCVIN CVIN 5.0 1Vp-p 1Vp-p 1Vp-p Vp-p
-3dB +3dB *
Operation tCYC(1) •All functions 4.5 - 5.5 0.844 0.848 0.852 µs
cycle time operating
tCYC(2) •AD converter 4.5 - 5.5 0.844 30
operating
•OSD and Data
slicer are not
operating
tCYC(3) •OSD, AD 4.5 - 5.5 0.844 400
converter and
Data slicer are not
operating
Oscillation FmRC Internal RC 4.5 - 5.5 0.4 0.8 3.0 MHz
frequency range oscillation

* Vp-p : Peak-to-peak voltage

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3. Electrical Characteristics at Ta=-10°C to +70°C, VSS=0V

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
High level input IIH(1) Ports 0, 1, 6, 7, 8 •Output disable 4.5 - 5.5 1 µA
current •Pull-up MOS Tr.
OFF
•VIN=VDD
(including the off-
leak current of the
output Tr.)
IIH(2) • RES •VIN=VDD 4.5 - 5.5 1
• HS , VS
Low level input IIL(1) Ports 0, 1, 6, 7, 8 •Output disable 4.5 - 5.5 -1
current •Pull-up MOS
Tr. OFF
•VIN=VSS
(including the off-
leak current of the
output Tr.)
IIL(2) • RES VIN=VSS 4.5 - 5.5 -1
• HS , VS
High level output VOH(1) •CMOS output of IOH=-1.0mA 4.5 - 5.5 VDD-1 V
voltage ports 0,1,71-73,8
VOH(2) R, G, B, I, BL IOH=-0.1mA 4.5 - 5.5 VDD-0.5
Low level output VOL(1) Ports 0,1,71-73,8 IOL=10mA 4.5 - 5.5 1.5
voltage VOL(2) Ports 0,1,71-73,8 IOL=1.6mA 4.5 - 5.5 0.4
VOL(3) •R, G, B, I, BL IOL=3.0mA 4.5 - 5.5 0.4
•Port 6
VOL(4) Port 6 IOL=6.0mA 4.5 - 5.5 0.6
VOL(5) Port 70 IOL=1mA 4.5 - 5.5 0.4
Pull-up MOS Rpu •Ports 0, 1, 7, 8 VOH=0.9VDD 4.5 - 5.5 13 38 80 kΩ
Tr. resistance
Bus terminal RBS •P60-P62 4.5 - 5.5 130 Ω
short circuit •P61-P63
resistance
(SCL0-SCL1,
SDA0-SDA1)
Hysteresis VHIS •Ports 0, 1, 6, 7 Output disable 4.5 - 5.5 0.1VDD V
voltage • RES
• HS , VS
Input clump VCLMP CVIN 5.0 2.3 2.5 2.7
votage
Pin capacitance CP All pins •f=1MHz 4.5 - 5.5 10 pF
•Every other
terminals are
connected to VSS.
•Ta=25°C

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4. Serial Input/Output Characteristics at Ta=-10°C to +70°C, VSS=0V

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
Cycle tCKCY(1) •SCK0 Refer to figure 4. 4.5 - 5.5 2 tCYC
Input clock

•SCLK0
Low Level tCKL(1) 1
pulse width
Serial clock

High Level tCKH(1) 1

pulse width
Cycle tCKCY(2) •SCK0 •Use pull-up 4.5 - 5.5 2
Output clock

•SCLK0 resistor (1kΩ)

Low Level tCKL(2) when Nch open- 1/2tCKCY
pulse width drain output.
High Level tCKH(2) •Refer to figure 4. 1/2tCKCY
pulse width
Data set up time tICK SI0 •Data set-up to 4.5 - 5.5 0.1 µs
Serial input

SCK0.
•Data hold from
Data hold time tCKI SCK0. 0.1
•Refer to figure 4.

Output delay time tCKO(1) SO0 •Data hold from 4.5 - 5.5 7/12tCYC
(Using external SCK0. +0.2
Serial output

clock) •Use pull-up

Output delay time tCKO(2) SO0 resistor (1kΩ) 4.5 - 5.5 1/3tCYC
(Using internal when Nch open- +0.2
clock) drain output.
•Refer to figure 4.

5. IIC Input/Output Conditions at Ta=-10°C to +70°C, VSS=0V

Standard High speed

Parameter Symbol unit
min. max. min. max.
SCL Frequency fSCL 0 100 0 400 kHz
BUS free time between stop - start tBUF 4.7 - 1.3 - µs
HOLD time of start, restart condition tHD;STA 4.0 - 0.6 - µs
L time of SCL tLOW 4.7 - 1.3 - µs
H time of SCL tHIGH 4.0 - 0.6 - µs
Set-up time of restart condition tSU;STA 4.7 - 0.6 - µs
HOLD time of SDA tHD;DAT 0 - 0 0.9 µs
Set-up time of SDA tSU;DAT 250 - 100 - ns
Rising time of SDA, SCL tR - 1000 20+0.1Cb 300 ns
Falling time of SDA, SCL tF - 300 20+0.1Cb 300 ns
Set-up time of stop condition tSU;STO 4.0 - 0.6 - µs
Refer to figure 10
(Note) Cb : Total capacitance of all BUS (unit : pF)

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6. Pulse Input Conditions at Ta=-10°C to +70°C, VSS=0V

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
High/low level tPIH(1) •INT0, INT1 •Interrupt acceptable 4.5 - 5.5 1 tCYC
pulse width tPIL(1) •INT2/T0IN •Timer0-countable
tPIH(2) INT3/T0IN •Interrupt acceptable 4.5 - 5.5 2
tPIL(2) (1/1 is selected for •Timer0-countable
noise rejection
clock.)
tPIH(3) INT3/T0IN •Interrupt acceptable 4.5 - 5.5 32
tPIL(3) (1/16 is selected for •Timer0-countable
noise rejection
clock.)
tPIH(4) INT3/T0IN •Interrupt acceptable 4.5 - 5.5 128
tPIL(4) (1/64 is selected for •Timer0-countable
noise rejection
clock.)
tPIL(5) RES Reset acceptable 4.5 - 5.5 200 µs
tPIH(6) HS , VS •Display position 4.5 - 5.5 8
tPIL(6) controllable (Note)
•The active edge of
HS and VS must
be apart at least
1 tCYC.
•Refer to figure 6.
Rising/falling tTHL HS Refer to figure 6. 4.5 - 5.5 500 ns
time tTLH

7. AD Converter Characteristics at Ta= -10°C to + 70°C, VSS=0V

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
Resolution N 4.5 – 5.5 8 bit
Absolute ET (Note 3) ±1.5 LSB
precision
Conversion tCAD ADCR2=0 (Note 4) 16 tCYC
time ADCR2=1 (Note 4) 32
Analog input VAIN AN4 - AN7 VSS VDD V
voltage range
Analog port IAINH VAIN=VDD 1 µA
input current IAINL VAIN=VSS -1

(Note 3) Absolute precision does not include quantizing error (1/2LSB).

(Note 4) Conversion time is the time till the complete digital conversion value for analog input value is set to a register after
the instruction to start conversion is sent.

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8. Sample Current Dissipation Characteristics at Ta= -10°C to +70°C, VSS=0V

The sample current dissipation characteristics is the measurement result of Sanyo provided evaluation board when the
recommended circuit parameters shown in the sample oscillation circuit characteristics are used externally. The currents
through the output transistors and the pull-up MOS transistors are ignored.

Ratings
Parameter Symbol Pins Conditions unit
VDD[V] min. typ. max.
Current dissipation IDDOP(1) VDD •FmX’tal=32.768kHz 4.5 - 5.5 19 32 mA
during basic X’tal oscillation
operation •System clock :
(Note 3) VCO
•VCO for OSD
operating
•Internal RC
oscillation stops
Current dissipation IDDHALT(1) VDD •HALT mode 4.5 - 5.5 7 12 mA
in HALT mode •FmX’tal=32.768kHz
(Note 3) X’tal oscillation
•System clock :
VCO
•VCO for OSD stops
•Internal RC
oscillation stops
IDDHALT(2) VDD •HALT mode 4.5 - 5.5 300 1200 µA
•FmX’tal=32.768kHz
X’tal oscillation
•VCO for system
stops
•VCO for OSD stops
•System clock :
Internal RC
IDDHALT(3) VDD •HALT mode 4.5 - 5.5 50 200
•FmX’tal=32.768kHz
X’tal oscillation
•VCO for system
stops
•VCO for OSD stops
•System clock : X’tal
Current dissipation IDDHOLD VDD •HOLD mode 4.5 - 5.5 0.05 20 µA
in HOLD mode •All oscillation stops.
(Note 3)

(Note 3) The currents through the output transistors and the pull-up MOS transistors are ignored.

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Recommended Oscillation Circuit and Sample Characteristics

The sample oscillation circuit characteristics in the table below is based on the following conditions:
• Recommended circuit parameters are verified by an oscillator manufacturer using a Sanyo provided oscillation evaluation
board.
• Sample characteristics are the result of the evaluation with the recommended circuit parameters connected externally.

Recommended oscillation circuit and sample characteristics (Ta = -10 to +70°C)

Operating Oscillation Notes
Recommended circuit parameters
Frequency Manufacturer Oscillator supply voltage stabilizing
range time
C1 C2 Rf Rd typ. max
32.768kHz Seiko Epson C-002RX 18pF 18pF Open 390kΩ 4.5 – 5.5V 1.00s 1.50s
Notes The oscillation stabilizing time period is the time until the VCO oscillation for the internal system becomes stable
after the following conditions. (Refer to Figure 2.)
1. The VDD becomes higher than the minimum operating voltage after the power is supplied.
2. The HOLD mode is released.

The sample oscillation circuit characteristics may differ applications. For further assistance, please contact with oscillator
manufacturer with the following notes in your mind.
• Since the oscillation frequency precision is affected by wiring capacity of the application board, etc., adjust the
oscillation frequency on the production board.
• The above oscillation frequency and the operating supply voltage range are based on the operating temperature of -10°C
to +70°C. For the use with the temperature outside of the range herein, or in the applications requiring high reliability
such as car products, please consult with oscillator manufacturer.
• When using the oscillator which is not shown in the sample oscillation circuit characteristics, please consult with Sanyo
sales personnel.

Since the oscillation circuit characteristics are affected by the noise or wiring capacity because the circuit is designed with low
gain in order to reduce the power dissipation, refer to the following notices.
• The distance between the clock I/O terminal (XT1 terminal XT2 terminal) and external parts should be as short as
possible.
• The capacitors’ VSS should be allocated close to the microcontroller’s GND terminal and be away from other GND.
• The signal lines with rapid state changes or with large current should be allocated away from the oscillation circuit.

XT1 XT2

Rf
Rd

C1 C2
X’tal

Figure 1 Recommended oscillation circuit.

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VDD
Power supply VDD limit
0V

Reset timae
RES

Internal RC
resonato
oscillation

XT1,XT2

tmsVCO

VCO for system stable

Operation mode Unfixed Reset Instruction execution mode

<Reset time and oscillation stabilizing time>

HOLD release signal Valid

Internal RC
resonato
oscillation

XT1,XT2

tmsVCO

VCO for system stable

Operation mode HOLD Instruction execution mode

<HOLD release signal and oscillation stabilizing time>

Figure 2 Oscillation stabilizing time

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VDD

RRES

RES (Note) Determine the CRES, RRES value to

generate more than 200µs reset time.
CRES

Figure 3 Reset circuit

0.5VDD

<AC timing measurement point>

tCKCY VDD

tCKL tCKH

SCK0
SCK1 1KΩ
tICK tCKI

SI0
SI1
tCKO

SO0, SO1 50pF

SB0, SB1

< Timing > < Test load >

Figure 4 Serial input / output test condition

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tPIL (1)-(5) tPIH (1)-(4)

Figure 5 Pulse input timing condition – 1

tPIL(6)
HS
0.75VDD

0.25VDD

tTLH

VS tPIL(6)

more than ±1tCYC

Figure 6 Pulse input timing condition - 2

LC863232A
10kΩ

HS

HS C536

Figure 7 Recommended Interface circuit

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Noise filter
1µF

C-Video CVIN
200Ω
1000pF

Coupling capacitor

Output impedance of C-Video before Noise filter should be less then 100Ω.
Figure 8 CVIN recommended circuit

100Ω
FILT

+
1MΩ 2.2µF 33000pF
-

Figure 9 FILT recommended circuit

(Note) Place FILT parts on board as close to the microcontroller as possible.

P S Sr P

SDA
tBUF

tHD;STA tR tF tHD;STA tsp

SCL

tLOW tHIGH

tHD;DAT tSU;DAT tSU;STA tSU;STO

S : start condition tsp : Spike suppression Standard mode : not exist

P : stop condition High speed mode : less than 50ns
Sr : restart condition

Figure 10 IIC timing

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memo:

PS No.6693-20/20