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HD74ACT161 Datasheet Synchronous Presettable Binary Counter

Manufacturer: Hitachi Semiconductor (now Renesas)

Overview: HD74ACT161/HD74ACT163 Synchronous Presettable Binary Counter.

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General Description

The HD74ACT161 and HD74ACT163 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 HD74ACT161 have an asynchronous Master Reset input that overrides all other inputs and forces the outputs Low.

Key Features

  • Synchronous Counting and Loading High-Speed Synchronous Expansion Typical Count Rate of 125 MHz Outputs Source/Sink 24 mA HD74ACT161 and HD74ACT163 have TTL-Compatible Inputs HD74ACT161/HD74ACT163 Pin Arrangement.
  • R 1 CP 2 P0 3 P1 4 P2 5 P3 6 CEP 7 GND 8 (Top view) 16 VCC 15 TC 14 Q0 13 Q1 12 Q2 11 Q3 10 CET 9 PE Logic Symbol PE P0 P1 P2 P3 CEP CET CP.
  • R Q0 Q1 Q2 Q3.
  • MR for HD74ACT161.
  • SR for HD74AC163/HD74ACT.

More Datasheets from Hitachi Semiconductor (now Renesas)

Part Number Description
HD74ACT163 Synchronous Presettable Binary Counter
HD74ACT164 Serial-In/ Parallel-Out Shift Register
HD74ACT165 Parallel-Load 8-bit Shift Register
HD74ACT166 8-bit Shift Register
HD74ACT107 Dual JK Flip-Flop (with Separate Clear and Clock)
HD74ACT112 Dual JK Negative Edge-Triggered Flip-Flop
HD74ACT125 Quad Buffer/Line Driver with 3-State Output
HD74ACT126 Quad Buffer/Line Driver with 3-State Output
HD74ACT138 1-of-8 Decoder/Demultiplexer
HD74ACT139 Dual 1-of-4 Decoder/Demultiplexer