CD4040 – 12-Stage Ripple Carry Binary Counter IC

The CD4x SeriesCD4040 isaripple-carry binary counterthat features 12 stages, push-pull type, and balanced outputs, with standard speed (TPD > 50ns). All counter stages aremaster-slave flip-flops.Supports wide input voltage ranges from 3V to 18V. The maximum input current at 18V is 1 uA whereas 100 nA at 18V and 25C.

All counter stages are master-slave flip-flops. The state of a counter advances one count on the negative transition of each input pulse; a high level on the RESET lineresets the counterto its all-zeros state.Schmitt’s triggeraction on the input-pulse line permits unlimited rise and fall times. All inputs and outputs are buffered. 16 Pin DIP is available in a hermetic dual-in-line ceramic package.

We also have aCD4020with similar features. The differences are CD4020 is a 14 Stage binary counter whereas CD4040 is a 12 Stage binary counter and there is a difference between the pin layout.

check out :CD4518 – Dual BCD Up Counter IC (Original)

Pinout:

Pinout ofCD4040 IC

Applications:

• Control Counters
• Timers
• Frequency Dividers
• Time-Delay Circuits