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54AC161L View Datasheet(PDF) - National ->Texas Instruments

Part Name54AC161L National-Semiconductor
National ->Texas Instruments National-Semiconductor
DescriptionSynchronous Presettable Binary Counter
54AC161L Datasheet PDF : 13 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Absolute Maximum Ratings (Note 1)
Recommended Operating
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
CDIP
−0.5V to +7.0V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
±50 mA
±50 mA
−65˚C to +150˚C
175˚C
Conditions
Supply Voltage (VCC)
’AC
2.0V to 6.0V
’ACT
4.5V to 5.5V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
54AC/ACT
0V to VCC
0V to VCC
−55˚C to +125˚C
Minimum Input Edge Rate (V/t)
’AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (V/t)
125 mV/ns
’ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation of FACTcircuits outside databook specifications.
DC Characteristics for ’AC Family Devices
Symbol
Parameter
VIH
Minimum High Level
Input Voltage
VIL
Maximum Low Level
Input Voltage
VOH
Minimum High Level
Output Voltage
VOL
Maximum Low Level
Output Voltage
IIN
IOLD
IOHD
ICC
Maximum Input
Leakage Current
Minimum Dynamic
Output Current (Note 3)
Maximum Quiescent
54AC
VCC
TA =
Units
(V)
−55˚C to +125˚C
Conditions
Guaranteed Limits
3.0
2.1
VOUT = 0.1V
4.5
3.15
V
or VCC − 0.1V
5.5
3.85
3.0
0.9
VOUT = 0.1V
4.5
1.35
V
or VCC − 0.1V
5.5
1.65
3.0
2.9
IOUT = −50 µA
4.5
4.4
V
5.5
5.4
(Note 2)
VIN = VIL or VIH
3.0
2.4
IOH = −12 mA
4.5
3.7
V
IOH = −24 mA
5.5
4.7
IOH = −24 mA
3.0
0.1
IOUT = 50 µA
4.5
0.1
V
5.5
0.1
(Note 2)
VIN = VIL or VIH
3.0
0.5
IOL = 12 mA
4.5
0.5
V
IOL = 24 mA
5.5
0.5
IOL = 24 mA
5.5
±1.0
µA
VI = VCC, GND
5.5
50
mA
VOLD = 1.65V Max
5.5
−50
mA
VOHD = 3.85V Min
5.5
160
µA
VIN = VCC
5
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General Description
The ’AC/’ACT161 are high-speed synchronous modulo-16 binary counters. They are synchronously presettable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The ’AC/’ACT161 has an asynchronous Master Reset input that over rides all other inputs and forces the outputs LOW.

Features
■ ICC reduced by 50%
■ Synchronous counting and loading
■ High-speed synchronous expansion
■ Typical count rate of 125 MHz
■ Outputs source/sink 24 mA
■ ’ACT161 has TTL-compatible inputs
■ Standard Microcircuit Drawing (SMD)
   — ’AC161: 5962-89561
   — ’ACT161: 5962-91722

 

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