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 operationsimilarto equivalent LSTTL while maintaining
the CMOS low power dissipation.
The M54/74HCT160/162 areBCDDecadecounters 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 rising edge of the CLOCK. The function on the
M54/74HCT162/163 is synchronous to CLOCK,
whilethe M54/74HCT160/161 countersarecleared
asynchronously. Two enable inputs (TE and PE)
andCARRYoutputare providedtoenableeasycascadingof counters, which facilitieseasy implementationof N-bitcounterswithout using externalgates.
This integrated circuithas input and outputcharacteristicsthat are fully compatible with 54/74 LSTTL
logic families. M54/74HCT devices are designed to
directly interface HSC2MOSsystems with TTL and
NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of
power consumption. All inputs are equipped with
M54/74HCT160/161
M54/74HCT162/163
B1R
(PlasticPackage)
M1R
(MicroPackage)
ORDER CODES :
M54HC TXXXF1 RM74H CTXXXM1 R
M74HC TXXXB1RM74HCT XXXC1R
PIN CONNECTIONS (topview)
NC =
No InternalCon-
F1R
(CeramicPackage)
C1R
(Chip Carrier)
October 1993
1/16
Page 2
M54/M74HCT160/161/162/163
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN NoSYMBOLNAME AND FUNCTION
1CLEARMaster Reset
2CLOCKClock Input (LOW to
HIGH, Edge-triggered)
3, 4, 5, 6A, B, C, DData Inputs
7ENABLE PCount Enable Input
10ENABLETCount Enable Carry Input
9LOADParallel Enable Input
14, 13, 12,11QA to QDFlip Flop Outputs
15CARRY
OUTPUT
8GNDGround (0V)
16V
CC
Terminal Count Output
Positive Supply Voltage
IEC LOGIC SYMBOL (HCT161)IEC LOGIC SYMBOL (HCT160)
IEC LOGIC SYMBOL (HCT162)IEC LOGIC SYMBOL (HCT163)
2/16
Page 3
TRUTH TABLE
M54/M74HCT160/161/162/163
M54/74HCT160/161M54/74HCT162/163
INPUTSINPUTS
CLRLDPETECKCLRLDPETECKQAQBQCQD
LXXXXLXXXLLLLRESET TO ”0”
HLXXHLXXABCDPRESET DATA
HHXLHHXLNO CHANGENO COUNT
HHLXHHLXNO CHANGENO COUNT
HHHHHHHHCOUNT UPCOUNT
HXXXXXXXNO CHANGENO COUNT
Supply Voltage-0.5 to +7V
DC Input Voltage-0.5 to VCC+ 0.5V
I
DC Output Voltage-0.5 to VCC+ 0.5V
DC Input Diode Current± 20mA
DC Output Diode Current± 20mA
DC Output Source Sink Current Per Output Pin± 25mA
DC VCCor Ground Current± 50mA
GND
Power Dissipation500 (*)mW
Storage Temperature-65 to +150
Lead Temperature (10 sec)300
L
Supply Voltage4.5 to 5.5V
Input Voltage0 to V
Output Voltage0 to V
Operating Temperature: M54HC Series
M74HC Series
CC
CC
-55 to +125
-40 to +85
Input Rise and Fall Time (VCC= 4.5 to 5.5V)0 to 500ns
o
C
o
C
V
V
o
C
o
C
7/16
Page 8
M54/M74HCT160/161/162/163
DC SPECIFICATIONS
Test ConditionsValue
SymbolParameter
V
High Level Input
IH
Voltage
V
Low Level Input
IL
Voltage
V
OH
High Level
Output Voltage
V
Low Level Output
OL
Voltage
Input Leakage
I
I
Current
I
Quiescent Supply
CC
Current
∆I
Additional worst
CC
case supply
current
V
CC
(V)
4.5
to
5.5
4.5
to
5.5
VI=
V
4.5
IH
or
V
IL
VI=
V
4.5
5.5
IH
or
V
IL
VI=VCCor GND±0.1±1±1µA
5.5 VI=VCCor GND44080µA
5.5Per Input pin
VI= 0.5V or
Other Inputs at
VCCor GND
T
=25oC
A
54HC and 74HC
-40 to 85oC
74HC
-55 to 125oC
54HC
Min.Typ.Max.Min.Max.Min.Max.
2.02.02.0V
0.80.80.8V
IO=-20 µA4.44.54.44.4
I
=-4.0 mA 4.184.314.134.10
O
IO=20µA0.00.10.10.1
I
= 4.0 mA0.170.260.330.4
O
2.02.93.0mA
V
= 2.4V
I
Unit
V
V
8/16
Page 9
M54/M74HCT160/161/162/163
AC ELECTRICAL CHARACTERISTICS (CL=50pF,Inputtr=tf=6ns)
Test ConditionsValue
T
=25oC
SymbolParameter
t
TLH
t
THL
t
PLH
t
PHL
Output Transition
Time
Propagation
Delay Time
V
CC
(V)
4.58151922ns
4.523364554ns
A
54HC and 74HC
Min.Typ.Max.Min.Max.Min.Max.
(CK - Q)
t
t
PLH
PHL
Propagation
Delay Time
4.527425363ns
(CK-CO)
t
PLH
Propagation
4.521334150ns
Delay Time
(TE-CO)
t
t
f
MAX
PLH
PHL
Propagation
Delay Time
(CLEAR - Q)
Propagation
Delay Time
(CLEAR-CO)
Maximum Clock
4.5for
26405060ns
HCT160/161
only
4.5for
28435465ns
HCT160/161
only
4.531492521MHz
Frequency
t
W(H)
t
W(L)
t
W(L)
Minimum Pulse
Width (CK)
Minimum Pulse
Width
(CLEAR)
Minimum Set-up
t
s
4.58151922ns
4.5for
8151922ns
HCT160/161
only
4.511202530ns
Time
(LOAD, PE, TE)
t
s
Minimum Set-up
4.55151922ns
Time
(A, B, C, D)
t
Minimum Set-up
s
Time
(CLEAR)
Minimum Hold
t
h
4.5for
5151922ns
HCT162/163
only
4.5558ns
Time
t
REM
C
C
PD
Minimum
Removal Time
(CLEAR)
Input Capacitance5101010pF
IN
(*)Power Dissipation
4.5for
HCT160/161
only
5151922ns
33pF
Capacitance
(*) CPDisdefined as the valueof the IC’s internal equivalent capacitance which is calculated fromthe operating current consumption without load.
(Referto Test Circuit).Average operting current can be obtained bythe followingequation. ICC(opr) = CPD•VCC•fIN+I
-40 to 85oC
74HC
-55 to 125oC
54HC
CC
Unit
9/16
Page 10
M54/M74HCT160/161/162/163
SWITCHING CHARACTERISTICS TEST WAVEFORM
COUNT MODECLEARMODE (HCT160/161)
PRESETMODECLEARMODE (HCT162/163)
COUNTENABLE MODECASCADE MODE
(fix maximum count)
10/16
Page 11
M54/M74HCT160/161/162/163
TEST CIRCUIT ICC(Opr.)TOTAL OPERATING CURRENT WHEN
USING A CAPACITIVE LOAD
When the outputs drive a capacitive load,the
total current can be calculatedas follows:
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 byimplication or otherwise under any patent or patentrights of SGS-THOMSON Microelectronics. Specificationsmentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproducts are not authorized foruse ascritical componentsin life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
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