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DM74163 - Synchronous 4-Bit Counters

Download the DM74163 datasheet PDF. This datasheet also covers the DM74161 variant, as both devices belong to the same synchronous 4-bit 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 The 161 and 163 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 oper

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Note: The manufacturer provides a single datasheet file (DM74161-NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
DM7416 Hex Inverting Buffers
DM74161 Synchronous 4-Bit Counters
DM74165 8-Bit Parallel-to-Serial Converter
DM7410 Triple 3-Input NAND Gates
DM74121 Monostable multivibrator

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.

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DM54161 DM74161 DM74163 Synchronous 4-Bit Counters October 1992 DM54161 DM74161 DM74163 Synchronous 4-Bit Counters General Description These synchronous presettable counters feature an internal carry look-ahead for application in high-speed counting designs The 161 and 163 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 flipflops clocked simultaneously so that the outputs change coincident with each other when so instructed by the countenable 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