SN74LS393 - DUAL DECADE COUNTER / DUAL 4-STAGE BINARY COUNTER

Motorola Semiconductor (now NXP Semiconductors)

Download the SN74LS393 datasheet PDF. This datasheet also covers the SN74LS390 variant, as both devices belong to the same dual decade counter / dual 4-stage binary counter family and are provided as variant models within a single manufacturer datasheet.

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SN74LS393 dual decade counter / dual 4-stage binary counter by Motorola Semiconductor (now NXP Semiconductors) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (SN74LS390_MotorolaInc.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	SN74LS393
Manufacturer	Motorola Semiconductor (now NXP Semiconductors)
File Size	193.57 KB
Description	DUAL DECADE COUNTER / DUAL 4-STAGE BINARY COUNTER
Datasheet	SN74LS393 Datasheet

📁 Similar Datasheet

Part Number	Description	Manufacturer
SN74LS393	DUAL 4-BIT DECADE AND BINARY COUNTERS	Texas Instruments
SN74LS393	Dual 4-Stage Binary Counter	ON Semiconductor
SN74LS390	DUAL 4-BIT DECADE AND BINARY COUNTERS	Texas Instruments
SN74LS399	QUADRUPLE 2-INPUT MULTIPLEXER	Texas Instruments
SN74LS399N	QUADRUPLE 2-INPUT MULTIPLEXER	Texas Instruments

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number	Description
SN74LS390	DUAL DECADE COUNTER / DUAL 4-STAGE BINARY COUNTER
SN74LS395	4-BIT SHIFT REGISTER
SN74LS398	QUAD 2-PORT REGISTER
SN74LS398D	QUAD 2-PORT REGISTER
SN74LS399	QUAD 2-PORT REGISTER

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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DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER The SN54 / 74LS390 and SN54 / 74LS393 each contain a pair of high-speed 4-stage ripple counters. Each half of the LS390 is partitioned into a divide-by-two section and a divide-by five section, with a separate clock input for each section. The two sections can be connected to count in the 8.4.2.1 BCD code or they can count in a biquinary sequence to provide a square wave (50% duty cycle) at the final output. Each half of the LS393 operates as a Modulo-16 binary divider, with the last three stages triggered in a ripple fashion. In both the LS390 and the LS393, the flip-flops are triggered by a HIGH-to-LOW transition of their CP inputs.