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MM74C928 Datasheet 4-digit Counters

Manufacturer: Fairchild (now onsemi)

Overview: MM74C925 • MM74C926 • MM74C927 • MM74C928 4-Digit Counters with Multiplexed 7-Segment Output Drivers October 1987 Revised January 1999 MM74C925 • MM74C926 • MM74C927 • MM74C928 4-Digit Counters with Multiplexed.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The MM74C925, MM74C926, MM74C927 and MM74C928 CMOS counters consist of a 4-digit counter, an internal output latch, NPN output sourcing drivers for a 7-segment display, and an internal multiplexing circuitry with four multiplexing outputs.

The multiplexing circuit has its own free-running oscillator, and requires no external clock.

The counters advance on negative edge of clock.

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