TC4020BP/BF/BFN

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC4020BP,TC4020BF,TC4020BFN

TC4020B 14 Stage Ripple-Carry Binary Counter/Dividers

TC4020B is 14 stage ripple carry binary counter having

asynchronous clear function. The counter advances its counting

stage by falling edge of CLOCK input. When RESET input is

placed “H”, all the circuits are reset regardless of CLOCK input

making all the outputs (Q1, Q4~Q14) to be “L”.

This is most suitable for frequency dividers, control circuits

and timing circuits.

Pin Assignment

Truth Table

CLOCK

Δ

RESET

Output State

*

H

All Outputs

= “L”

L

No Change

L

Advance to Next State

Δ: Level change

*: Don’t care

Note: xxxFN (JEDEC SOP) is not available in

Japan.

TC4020BP

TC4020BF

TC4020BFN

Weight

DIP16-P-300-2.54A

: 1.00 g (typ.)

SOP16-P-300-1.27A

: 0.18 g (typ.)

SOL16-P-150-1.27

: 0.13 g (typ.)