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STMicroelectronics Electronic Components Datasheet

M54HCT162 Datasheet

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

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M54HCT162 pdf
M54/74HCT160/161
M54/74HCT162/163
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
. HIGH SPEED
fMAX = 50 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT 25 °C
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. SYMMETRICAL OUTPUT IMPEDANCE
IOH = IOL = 4 mA (MIN.)
. COMPATIBLE WITH TTL OUTPUTS
VIH = 2V (MIN.); VIL = 0.8V (MAX.)
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS160 163
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
DESCRIPTION
M54/74HCT160 Decade, Asynchronous Clear
M54/74HCT161 Binary, Asynchronous Clear
M54/74HCT162 Decade, Synchronous Clear
M54/74HCT163 Binary, Synchronous Clear
ORDER CODES :
M54HCTXXXF1R M74HCTXXXM1R
M74HCTXXXB1R M74HCTXXXC1R
PIN CONNECTIONS (top view)
The M54/74HCT160, 161, 162 and 163 are high
speed CMOS SYNCHRONOUS PRESETTABLE
COUNTERS fabricated with silicon gate C2MOS
technology. They have the same high speed oper-
ation similar to equivalent LSTTL while maintaining
the CMOS low power dissipation.
The M54/74HCT160/162 are BCD Decade counter-
s and the M54/74HCT161/163 are 4 bit binary
counters. The CLOCK input is active on the rising
edge. Both LOAD and CLEAR inputs are active
Low.
Presetting of all four IC’s is synchronous on the ris-
ing edge of the CLOCK. The function on the
M54/74HCT162/163 is synchronous to CLOCK,
while the M54/74HCT160/161 counters are cleared
asynchronously. Two enable inputs (TE and PE)
and CARRY output are provided to enable easycas-
cading of counters, which facilities easy implemen-
tation of N-bit counters without using external gates.
This integrated circuit has input and output charac-
teristics that are fully compatible with 54/74 LSTTL
logic families. M54/74HCT devices are designed to
directly interface HSC2MOS systems with TTL and
NMOS components. They are also plug in replace-
ments for LSTTL devices giving a reduction of
power consumption. All inputs are equipped with
NC =
No Inter-
nal Con-
October 1993
1/16


STMicroelectronics Electronic Components Datasheet

M54HCT162 Datasheet

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

No Preview Available !

M54HCT162 pdf
M54/M74HCT160/161/162/163
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1
2
3, 4, 5, 6
7
10
9
14, 13, 12,
11
15
8
16
SYMBOL
CLEAR
CLOCK
A, B, C, D
ENABLE P
ENABLET
LOAD
QA to QD
CARRY
OUTPUT
GND
VCC
NAME AND FUNCTION
Master Reset
Clock Input (LOW to
HIGH, Edge-triggered)
Data Inputs
Count Enable Input
Count Enable Carry Input
Parallel Enable Input
Flip Flop Outputs
Terminal Count Output
Ground (0V)
Positive Supply Voltage
IEC LOGIC SYMBOL (HCT160)
IEC LOGIC SYMBOL (HCT161)
IEC LOGIC SYMBOL (HCT162)
IEC LOGIC SYMBOL (HCT163)
2/16


Part Number M54HCT162
Description SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
Maker ST Microelectronics
Total Page 16 Pages
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