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DM74S163 - Synchronous 4-Bit Binary Counters

Download the DM74S163 datasheet PDF. This datasheet also covers the DM74S161 variant, as both devices belong to the same synchronous 4-bit binary counters family and are provided as variant models within a single manufacturer datasheet.

General Description

These synchronous presettable counters feature an internal carry look-ahead for application in high-speed counting designs They are 4-bit binary counters The carry output is decoded by means of a NOR gate thus preventing spikes during the normal counting mode of operation Synchronous operation is pr

Key Features

  • Y Synchronously programmable Y Internal look-ahead for fast counting Y Carry output for n-bit cascading Y Synchronous counting Y Load control line Y Diode-clamped inputs Connection Diagram Dual-In-Line Package Order Number DM74S161N or DM74S163N See NS Package Number N16E TL F 6471.
  • 1 C1995 National Semiconductor Corporation TL F 6471 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) Supply Voltage 7V Input Voltage 5 5V Operating Free Air Temperature Range 0 C to.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (DM74S161-NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
DM74S163 Synchronous 4-Bit Binary Counters Fairchild Semiconductor
DM74S161 Synchronous 4-Bit Binary Counters Fairchild Semiconductor
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DM74S11 Triple 3-Input AND Gate Fairchild Semiconductor
DM74S112 Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flop Fairchild Semiconductor

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
DM74S161 Synchronous 4-Bit Binary Counters
DM74S132 Quad 2-Input Schmitt Trigger NAND Gate
DM74S157 QUAD 1 OF 2 LINE DATA SELECTORS/MULTIPLEXERS
DM74S158 QUAD 1 OF 2 LINE DATA SELECTORS/MULTIPLEXERS
DM74S181 ARITHMETIC LOGIC UNIT/FUNCTION GENERATORS

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DM74S161 DM74S163 Synchronous 4-Bit Binary Counters February 1992 DM74S161 DM74S163 Synchronous 4-Bit Binary Counters General Description These synchronous presettable counters feature an internal carry look-ahead for application in high-speed counting designs They are 4-bit binary counters The carry output is decoded by means of a NOR gate thus preventing spikes during the normal counting mode of operation Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count enable inputs and internal gating This mode of operation eliminates the output counting spikes which are normally associated with asynchronous (ripple clock) counters A buffered clock input triggers the four flip-flops