M54HC160 Datasheet, PDF (1/16 Pages) STMicroelectronics – SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

M54/74HC160/161
M54/74HC162/163
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
. HIGH SPEED
fMAX = 63 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
I_CC = 4 µA (MAX.) AT 25 °C
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. BALANCED PROPAGATION DELAYS
t_PLH = t_PHL
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. WIDE OPERATING VOLTAGE RANGE
V_CC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS160 ∼ 163
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
DESCRIPTION
ORDER CODES :
M54HCXXXF1R M74HCXXXM1R
M74HCXXXB1R M74HCXXXC1R
M54/74HC160 Decade, Asynchronous Clear
M54/74HC161 Binary, Asynchronous Clear
M54/74HC162 Decade, Synchronous Clear
M54/74HC163 Binary, Synchronous Clear
PIN CONNECTIONS (top view)
The M54/74HC160, 161, 162 and 163 are high
speed CMOS SYNCHRONOUS PRESETTABLE
COUNTERS fabricated with silicon gate C²MOS
technology.
They have the same the high speed operation simi-
lar to equivalent LSTTL while maintaining the
CMOS low power dissipation.
The M54/74HC160/162 are BCD Decade counters
and the M54/74HC161/163 are 4 bit binary counter-
s.
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 M54/74HC162/163 is syn-
chronous to CLOCK, while the M54/74HC160/161
counters are cleared asynchronously.
Two enable inputs (TE and PE) and CARRY output
are provided to enable easy cascading of counters,
which facilities easy implementation of N-bit
counters without using external gates.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
NC =
No Inter-
nal Con-
April 1993
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