74AC16X ONSEMI [ON Semiconductor], 74AC16X Datasheet

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74AC16X

Manufacturer Part Number
74AC16X
Description
Synchronous Presettable Binary Counter
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
MC74AC161, MC74ACT161,
MC74AC163, MC74ACT163
Synchronous Presettable
Binary Counter
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.
input that overrides all other inputs and forces the outputs LOW. The
MC74AC163/74ACT163 has a Synchronous Reset input that
overrides counting and parallel loading and allows the outputs to be
simultaneously reset on the rising edge of the clock.
w
© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 7
PIN ASSIGNMENT
PIN
CEP
CET
CP
MR
SR
P
PE
Q
TC
Figure 1. Pinout: 16−Lead Packages Conductors
The MC74AC161/74ACT161 and MC74AC163/74ACT163 are
The MC74AC161/74ACT161 has an asynchronous Master Reset
These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
Synchronous Counting and Loading
High−Speed Synchronous Expansion
Typical Count Rate of 125 MHz
Outputs Source/Sink 24 mA
′ACT161 and ′ACT163 Have TTL Compatible Inputs
0
0
−P
−Q
3
V
3
16
*R
CC
1
CP
TC
15
2
FUNCTION
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input
(′161) Asynchronous Master Reset Input
(′163) Synchronous Reset Input
Parallel Data Inputs
Parallel Enable Input
Flip−Flop Outputs
Terminal Count Output
Q
14
P
3
0
0
(Top View)
Q
13
P
4
1
1
Q
12
P
5
2
2
Q
P
11
6
3
3
CET
CEP
10
7
GND
PE
9
8
1
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
See general marking information in the device marking
section on page 11 of this data sheet.
16
DEVICE MARKING INFORMATION
ORDERING INFORMATION
1
16
16
http://onsemi.com
1
1
Publication Order Number:
CASE 751B
CASE 648
M SUFFIX
CASE 966
N SUFFIX
D SUFFIX
EIAJ−16
DIP−16
SO−16
MC74AC161/D

Related parts for 74AC16X

74AC16X Summary of contents

Page 1

MC74AC161, MC74ACT161, MC74AC163, MC74ACT163 Synchronous Presettable Binary Counter The MC74AC161/74ACT161 and MC74AC163/74ACT163 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 ...

Page 2

CEP CET *MR for ′161 *SR for ′163 Figure 2. Logic Symbol FUNCTIONAL DESCRIPTION The MC74AC161/ACT161 and MC74AC163/ACT163 count modulo−16 ...

Page 3

PE ′161 ′163 CEP CET ′163 ONLY CP CP ′161 ONLY ′161 SR ′163 Q 0 NOTE: This diagram is provided only for the understanding of logic operations and should not be used to ...

Page 4

RECOMMENDED OPERATING CONDITIONS Symbol V Supply Voltage Input Voltage, Output Voltage (Ref. to GND) IN OUT Input Rise and Fall Time (Note ′AC Devices except Schmitt Inputs Input Rise ...

Page 5

AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) Symbol Parameter Maximum Count f max Frequency Propagation Delay t PLH (PE Input HIGH or LOW) n Propagation Delay ...

Page 6

AC OPERATING REQUIREMENTS Symbol Parameter Setup Time, HIGH or LOW Hold Time, HIGH or LOW Setup Time, HIGH or LOW Hold Time, HIGH ...

Page 7

AC OPERATING REQUIREMENTS Symbol Parameter Setup Time, HIGH or LOW Hold Time, HIGH or LOW Setup Time, HIGH or LOW Hold Time, HIGH ...

Page 8

DC CHARACTERISTICS Symbol Parameter V Minimum High Level IH Input Voltage V Maximum Low Level IL Input Voltage V Minimum High Level OH Output Voltage V Maximum Low Level OL Output Voltage I Maximum Input IN Leakage Current DI Additional ...

Page 9

AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) Symbol Parameter Maximum Count f max Frequency Propagation Delay t PLH (PE Input HIGH or LOW) n Propagation Delay ...

Page 10

AC OPERATING REQUIREMENTS Symbol Parameter Setup Time, HIGH or LOW Hold Time, HIGH or LOW Setup Time, HIGH or LOW Hold Time, HIGH ...

Page 11

... A Fig. to +85°C Unit No 12.0 ns 3−9 0.5 ns 3−9 11.5 ns 3−9 −0.5 ns 3−9 10.5 ns 3− 3−9 6.5 ns 3−9 0.5 ns 3−9 3.5 ns 3−6 3.5 ns 3−6 Unit Test Conditions 5 5 EIAJ−16 74AC16x ALYW 74ACT16x ALYW ...

Page 12

ORDERING INFORMATION Device MC74AC161N MC74ACT161N MC74AC161D MC74AC161DR2 MC74ACT161D MC74ACT161DR2 MC74AC161M MC74ACT161MEL MC74AC163N MC74ACT163N MC74AC163D MC74AC163DR2 MC74ACT163D MC74ACT163DR2 MC74AC163MEL MC74ACT163MEL Package PDIP−16 PDIP−16 SOIC−16 SOIC−16 SOIC−16 SOIC−16 EIAJ−16 EIAJ−16 PDIP−16 PDIP−16 SOIC−16 SOIC−16 SOIC−16 SOIC−16 EIAJ−16 EIAJ−16 http://onsemi.com 12 Shipping 25 ...

Page 13

0.25 (0.010) M −A− −T− SEATING PLANE 0.25 (0.010 PACKAGE DIMENSIONS PDIP−16 N ...

Page 14

VIEW 0.10 (0.004) 0.13 (0.005) M PACKAGE DIMENSIONS EIAJ−16 M SUFFIX 16 PIN PLASTIC EIAJ PACKAGE CASE966−01 ISSUE ...

Page 15

Notes ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products ...

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