onsemi MC74AC163
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 for versatility in forming synchronous multistage counters. The MC74AC161/74ACT161 has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW.| Part No. | MC74AC163 |
|---|---|
| Datasheet | MC74AC163 Download |
| Manufacturer |  onsemi |
| Description | Synchronous Presettable Binary Counter |
| Buy | Stock & Price |
FEATURES
● 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
● These are Pb−Free Devices VCC TC Q0 Q1 Q2 Q3 CET PE 16 15 14 13 12 11 10 9 16 1 xxx y A WL Y WW G MARKING DIAGRAM 16 SOIC−16 D SUFFIX CASE 751B 1 xxx16yG AWLYWW = AC or ACT = 1 or 3 = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. 12345678 *R CP P0 P1 P2 P3 CEP GND Figure 1. Pinout: 16−Lead Packages Conductors (Top View) PIN ASSIGNMENT PIN FUNCTION CEP Count Enable Parallel Input CET Count Enable Trickle Input CP Clock Pulse Input MR (′161) Asynchronous Master Reset Input SR (′163) Synchronous Reset Input P0−P3 PE Parallel Data Inputs Parallel Enable Input Q0−Q3 TC Flip−Flop Outputs Terminal Count Output © Semiconductor Components Industries, LLC, 2015 January, 2015 − Rev.
