CD4026

Texas Instruments, Harris Semiconductor

Logic - Counters

Decade Counter/Divider with Display Enable - 5-stage Johnson decade counter with 7-segment decoded output and display enable control.

The CD4026B consists of a 5-stage Johnson decade counter and an output decoder that converts the Johnson code to a 7-segment decoded output for driving one stage in a numerical display. The 7-segment outputs go high only when the DISPLAY ENABLE IN is high. The CARRY-OUT signal completes one cycle every ten CLOCK INPUT cycles, enabling multi-decade counting.

Supply Voltage:

3V - 18V

Package:

16-pin DIP

Max Frequency:

6.0 MHz

Key Features

Counter and 7-segment decoding in one package
Display enable control for blanking
Fully static counter operation: DC to 6 MHz (typical) at VDD=10V
Ideal for low-power displays
Schmitt-triggered clock inputs
Standardized, symmetrical output characteristics
100% tested for quiescent current at 20V
5-V, 10-V, and 15-V parametric ratings

Applications

Decade counting 7-segment decimal display
Frequency division 7-segment decimal displays
Clocks, watches, timers (÷60, ÷60, ÷12 counter/display)
Counter/display driver for meter applications
Digital clocks and timers
Frequency counters

Notes

The 7-segment outputs are gated by the DISPLAY ENABLE IN signal. The UNGATED C SEGMENT output is always active regardless of display enable state.

Documentation

View Complete Datasheet