S1C63654
4-bit Single Chip Microcomputer
● Original Architecture Core CPU
● Low Current Consumption
● High Speed Operation in Low Voltage
DESCRIPTION
The S1C63654 is a microcomputer which has a high-performance 4-bit CPU S1C63000 as the core CPU, ROM
(4,096 words × 13 bits), RAM (512 words × 4 bits), serial interface, watchdog timer, programmable timer, time
base counters (2 systems), an LCD driver that can drive a maximum 32 segments × 6 commons, sound
generator and R/f converter built-in. The S1C63654 features low current consumption, this makes it suitable for
battery driven portable equipment with R/f converter.
FEATURES
OSC1 oscillation circuit 32.768 kHz (Typ.) crystal oscillation circuit
OSC3 oscillation circuit 4 MHz (Max.) ceramic
(2 MHz Max. when OSC3 is used as the R/f converter operating clock)
or 1.1 MHz (Typ.) CR oscillation circuit (*1)
Instruction set Basic instruction: 46 types (411 instructions with all)
Addressing mode: 8 types
Instruction execution time During operation at 32.768 kHz: 61 μsec 122 μsec 183 μsec
During operation at 4 MHz: 0.5 μsec 1 μsec 1.5 μsec
ROM capacity Code ROM: 4,096 words × 13 bits
Data ROM: 1,024 words × 4 bits
RAM capacity Data memory: 512 words × 4 bits
Display memory: 48 words × 4 bits
Input port 8 bits (Pull-down resistors may be supplemented *1)
Output port 4 bits (It is possible to switch the 2 bits to special output *2)
I/O port 8 bits (It is possible to switch the 4 bits to serial I/F input/output *2)
Serial interface 1 port (8-bit clock synchronous system)
LCD driver 32 segments × 6, 5, 4 or 3 commons (*2)
Time base counter Clock timer
Stopwatch timer (1/1000 sec, with direct key input function)
Programmable timer 8-bit PWM × 2 ch. or 16-bit PWM × 1 ch. (*2)
Watchdog timer Built-in
Sound generator With envelope and 1-shot output functions
R/f converter 2 ch., CR oscillation type, 20-bit counter
Supports resistive humidity sensors
Supply voltage detection (SVD) circuit Criteria voltage is selectable from 8 types (1.85 to 2.90 V *2)
External interrupt Input port interrupt: 2 systems
Internal interrupt Clock timer interrupt: 4 systems
Stopwatch timer interrupt: 4 systems
Programmable timer interrupt: 4 systems
Serial interface interrupt: 1 system
R/f converter interrupt: 2 systems
Power supply voltage 2.4 to 3.6 V: Max. 4 MHz operation in normal mode
2.4 to 3.6 V: 32 kHz operation in halver mode
1.8 to 3.6 V: 32 kHz operation in normal mode
Operating temperature range -20 to 70°C
Current consumption (Typ.) Low-speed operation (OSC1 = 32 kHz crystal oscillation):
During HALT 3.0 V (LCD ON, halver mode) 0.65 µA
During operation 3.0 V (LCD ON, halver mode) 2.5 µA
High-speed operation (OSC3 = 4 MHz ceramic oscillation):
During operation 3.0 V (LCD ON) 800 µA
Shipment form QFP15-100pin (plastic) or chip
*1: Can be selected with mask option *2: Can be selected with software
S1C63654
BLOCK DIAGRAM
ROM System Reset RESET
4,096 words x 13 bits Control
Core CPU S1C63000
OSC1
Interrupt
OSC2
OSC Generator
OSC3
OSC4
Clock
RAM Timer
512 words x 4 bits
Stopwatch
Data ROM Timer
1,024 words x 4 bits
Programmable
Timer/Counter
COM0~5 LCD Driver
SEG0~31 32 SEG x 6 COM
K00~K03
K10~K13
Input Port
VDD TEST
VDDA
VC1~3
VD1~2 Power
Serial Interface
VOSC Controller
CA~CD
VSS
VSSA P00~P03
I/O Port
P10~P13
SVD
Output Port R00~R03
SEN0, SEN1, HUD
REF0, REF1 R/F Converter Sound
RFIN0, RFIN1 BZ
Generator
RFOUT
NOTICE:
No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko Epson.
Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind
arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no
representation that this material is applicable to products requiring high level reliability, such as, medical products. Moreover, no license
to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in
accordance with this material will be free from any patent or copyright infringement of a third party. This material or portions thereof may
contain technology or the subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Law of Japan
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©Seiko Epson Corporation 2012, All rights reserved
EPSON semiconductor website
SEIKO EPSON CORPORATION
MICRODEVICES OPERATIONS DIVISION http://www.epson.jp/device/semicon_e/
Device Sales & Marketing Department
421-8 Hino, Hino-shi, Tokyo 191-8501, JAPAN Document code: 412300000
Phone: +81-42-587-5814 FAX: +81-42-587-5117 First issue Feb, 2012 in Japan
