M54HCT27
M74HCT27
TRIPLE 3-INPUT NOR GATE
. HIGH SPEED
. tPD = 9 ns (TYP.) AT VCC = 5 V
LOW POWER DISSIPATION
. ICC = 1 µA (MAX.) AT TA = 25 °C
COMPATIBLE WITH TTL OUTPUTS
. VIH = 2V (MIN.) VIL = 0.8V (MAX)
OUTPUT DRIVE CAPABILITY B1R F1R
. 10 LSTTL LOADS
SYMMETRICAL OUTPUT IMPEDANCE
(Plastic Package) (Ceramic Package)
. IOH = IOL = 4 mA (MIN.)
BALANCED PROPAGATION DELAYS
. tPLH = tPHL
PIN AND FUNCTION COMPATIBLE WITH
54/74LS27
M1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
DESCRIPTION M54HCT27F1R M74HCT27M1R
The M54/74HCT27 is a high speed CMOS TRIPLE M74HCT27B1R M74HCT27C1R
3-INPUT NOR GATE fabricated in silicon gate
C2MOS technology.
It has the same high speed performance of LSTTL PIN CONNECTIONS (top view)
combined with true CMOS low power consumption.
The internal circuit is composed of 3 stages includ-
ing buffered output, which gives high noise immunity
and a stable output. All inputs are equipped with pro-
tection circuits against static discharge and transient
excess voltage. This integrated circuit has input and
output characteristics that are fully compatible with
54/74 LSTTL logic families. M54/74HCT devices
are designed to directly interface HSC2MOS sys-
tems with TTL and NMOS components. They are
also plug in replacements for LSTTL devices giving
a reduction of power consumption.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
NC =
No Internal
Connection
February 1993 1/9
M54/M74HCT27
TRUTH TABLE IEC Logic Symbol
A B C Y
L L L H
H X X L
X H X L
X X H L
PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1, 3, 9 1A to 3A Data Inputs
2, 4, 10 1B to 3B Data Inputs
13, 5, 11 1C to 3C Data Inputs
12, 6, 8 1Y to 3Y Data Outputs
7 GND Ground (0V)
14 VCC Positive Supply Voltage
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VCC Supply Voltage -0.5 to +7 V
VI DC Input Voltage -0.5 to VCC + 0.5 V
VO DC Output Voltage -0.5 to VCC + 0.5 V
IIK DC Input Diode Current ± 20 mA
IOK DC Output Diode Current ± 20 mA
IO DC Output Source Sink Current Per Output Pin ± 25 mA
ICC or IGND DC VCC or Ground Current ± 50 mA
PD Power Dissipation 500 (*) mW
o
Tstg Storage Temperature -65 to +150 C
o
TL Lead Temperature (10 sec) 300 C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
2/9
M54/M74HCT27
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
VCC Supply Voltage 4.5 to 5.5 V
VI Input Voltage 0 to VCC V
VO Output Voltage 0 to VCC V
o
Top Operating Temperature: M54HC Series -55 to +125 C
o
M74HC Series -40 to +85 C
tr, tf Input Rise and Fall Time (VCC = 4.5 to 5.5V) 0 to 500 ns
DC SPECIFICATIONS
Test Conditions Value
Symbol Parameter TA = 25 oC -40 to 85 oC -55 to 125 oC Unit
VCC
54HC and 74HC 74HC 54HC
(V)
Min. Typ. Max. Min. Max. Min. Max.
VIH High Level Input 4.5 2.0 2.0 2.0 V
Voltage to
5.5
V IL Low Level Input 4.5 0.8 0.8 0.8 V
Voltage to
5.5
V OH High Level VI = IO=-20 µA 4.4 4.5 4.4 4.4
Output Voltage VIH
4.5 V
or IO=-4.0 mA 4.18 4.31 4.13 4.10
V IL
VOL Low Level Output VI = IO= 20 µA 0.0 0.1 0.1 0.1
Voltage VIH
4.5 V
or IO= 4.0 mA 0.17 0.26 0.33 0.4
V IL
II Input Leakage VI = VCC or GND ±0.1 ±1 ±1 µA
5.5
Current
ICC Quiescent Supply 5.5 VI = VCC or GND 1 10 20 µA
Current
∆ICC Additional worst 5.5 Per Input pin 2.0 2.9 3.0 mA
case supply VI = 0.5V or
current V I = 2.4V
Other Inputs at
V CC or GND
IO= 0
3/9
M54/M74HCT27
AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns)
Test Conditions Value
o
Symbol Parameter TA = 25 C -40 to 85 oC -55 to 125 oC Unit
VCC
54HC and 74HC 74HC 54HC
(V)
Min. Typ. Max. Min. Max. Min. Max.
tTLH Output Transition 4.5 8 15 19 22
ns
tTHL Time
tPLH Propagation 4.5 12 19 24 29
ns
tPHL Delay Time
CIN Input Capacitance 5 10 10 10 pF
CPD (*) Power Dissipation 48
pF
Capacitance
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/3 (per Gate)
SWITCHING CHARACTERISTICS TEST CIRCUIT
TEST CIRCUIT ICC (Opr.)
INPUT WAVEFORM IS THE SAVE AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST.
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M54/M74HCT27
Plastic DIP14 MECHANICAL DATA
mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 1.39 1.65 0.055 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 15.24 0.600
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 2.54 0.050 0.100
P001A
5/9
M54/M74HCT27
Ceramic DIP14/1 MECHANICAL DATA
mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 20 0.787
B 7.0 0.276
D 3.3 0.130
E 0.38 0.015
e3 15.24 0.600
F 2.29 2.79 0.090 0.110
G 0.4 0.55 0.016 0.022
H 1.17 1.52 0.046 0.060
L 0.22 0.31 0.009 0.012
M 1.52 2.54 0.060 0.100
N 10.3 0.406
P 7.8 8.05 0.307 0.317
Q 5.08 0.200
P053C
6/9
M54/M74HCT27
SO14 MECHANICAL DATA
mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064
b 0.35 0.46 0.013 0.018
b1 0.19 0.25 0.007 0.010
C 0.5 0.019
c1 45° (typ.)
D 8.55 8.75 0.336 0.344
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 7.62 0.300
F 3.8 4.0 0.149 0.157
G 4.6 5.3 0.181 0.208
L 0.5 1.27 0.019 0.050
M 0.68 0.026
S 8° (max.)
P013G
7/9
M54/M74HCT27
PLCC20 MECHANICAL DATA
mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 9.78 10.03 0.385 0.395
B 8.89 9.04 0.350 0.356
D 4.2 4.57 0.165 0.180
d1 2.54 0.100
d2 0.56 0.022
E 7.37 8.38 0.290 0.330
e 1.27 0.050
e3 5.08 0.200
F 0.38 0.015
G 0.101 0.004
M 1.27 0.050
M1 1.14 0.045
P027A
8/9
M54/M74HCT27
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
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