MC54HCT161A Datasheet, PDF (1/12 Pages) Motorola, Inc – PRESETTABLE COUNTERS HIGH-PERFORMANCE SILICON-GATE CMOS

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Presettable Counters
High–Performance Silicon–Gate CMOS
The MC54/74HCT161A and HCT163A are identical in pinout to the LS161A
and LS163A. These devices may be used as level converters for interfacing
TTL or NMOS outputs to high speed CMOS inputs.
The HCT161A and HCT163A are programmable 4–bit binary counters with
asynchronous and synchronous reset, respectively.
• Output Drive Capability: 10 LSTTL Loads
• TTL, NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1 µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 200 FETs or 50 Equivalent Gates
LOGIC DIAGRAM
Preset
Data
Inputs
P0 ³
P1 ⁴
P2 ⁵
P3 ⁶
Clock ²
Count
Enables
Reset ¹
Load ⁹
Enable P ⁷
Enable T ¹⁰
14 _Q0
13 _{Q1 BCD or Binary}
12 _{Q2 Outputs}
11 _Q3
15 Ripple
Carry Out
Pin 16 = VCC
Pin 8 = GND
MC54/74HCT161A
MC54/74HCT163A
16
1
J SUFFIX
CERAMIC PACKAGE
CASE 620–10
16
1
N SUFFIX
PLASTIC PACKAGE
CASE 648–08
16
1
D SUFFIX
SOIC PACKAGE
CASE 751B–05
ORDERING INFORMATION
MC54HCXXXAJ
MC74HCXXXAN
MC74HCXXXAD
Ceramic
Plastic
SOIC
Device
HCT161A
HCT163A
Count Mode
Binary
Binary
Reset Mode
Asynchronous
Synchronous
Pinout: 16–Lead Package (Top View)
Enable
VCC RCO* Q0 Q1 Q2 Q3 T Load
16 15 14 13 12 11 10 9
FUNCTION TABLE
Clock
Reset*
Inputs
Load Enable P Enable T
Output
Q
L
X
X
X
Reset
H
L
X
X
Load Preset Data
H
H
H
H
Count
H
H
L
X
No Count
H
H
X
L
No Count
H = High Level; L = Low Level; X = Don’t Care
* = HCT163A only. HCT161A is an “Asynchronous–Reset” device.
12
Reset Clock
345678
P0 P1 P2 P3 Enable GND
P
* RCO = Ripple Carry Out
10/95
© Motorola, Inc. 1995
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