Product Summary

The CD4020 is a CMOS ripple-carry binary counter/divider. All counter stages are master-slave flip-flops. he state of a counter advances one count on teh negative transition of each inputs pulse; a high level on the RESET line resets the counter to its all zeros state. Schmitt trigger action on the input-pulse line permits unlimited rise and fall times. All inputs and outputs are buffered. The applications of the CD4020 include control counter, frequency dividers, timers and time-delay circuits.

Parametrics

CD4020 absolute maximum ratings: (1)DC supply voltage range, VDSD: -0.5 to 20V; (2)input voltage range, all inputs: -0.5 to VDD+0.5V; (3)DC input current, any one input: ±10mA; (4)power dissipation per package, PD: 500mW for TA=-55 to 100℃; (5)device dissipation per output transistor: 100mW; (6)operating temperature range, TA: -55 to 125℃; (7)storage tmperature range, Tstg: -65 to 150℃; (8)lead temperature: 250℃.

Features

CD4020 features: (1)medium-speed operation; (2)fully static operation; (3)buffered inputs and outputs; (4)100% tested for quiescent current at 20V; (5)standardized, symmetrical output charactristics; (6)fully static operaiton; (7)common reset; (8)5V, 10V, and 15V parametric ratings; (9)maximum input current of 1μA at 18V over full package temperature range; 100nA at 18V and 25℃; (10)noise margin: 1V at VDD=5V; 2V at VDD=10V; 2.5V at VDD=15V; (11)meets all requirements of JEDEC tentative standard.

Diagrams

CD4020 circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
CD40208BE
CD40208BE

Other


Data Sheet

Negotiable 
CD40208BMS
CD40208BMS

Other


Data Sheet

Negotiable 
CD4020B
CD4020B

Other


Data Sheet

Negotiable 
CD4020BC
CD4020BC

Other


Data Sheet

Negotiable 
CD4020BCM
CD4020BCM

Fairchild Semiconductor

Counter ICs 14-Stage Binary Ctr

Data Sheet

Negotiable 
CD4020BCN
CD4020BCN

Fairchild Semiconductor

Counter ICs 14-Stage Binary Ctr

Data Sheet

Negotiable 
CD4020BE
CD4020BE

Texas Instruments

Counter ICs 14-Bit Ripple-Carry

Data Sheet

0-1: $0.27
1-25: $0.23
25-100: $0.17
100-250: $0.17
CD4020BEE4
CD4020BEE4

Texas Instruments

Counter ICs 14-Bit Ripple-Carry

Data Sheet

0-1: $0.30
1-25: $0.23
25-100: $0.20
100-250: $0.13