© Semiconductor Components Industries, LLC, 2000

March, 2000 – Rev. 3

1

Publication Order Number:

MC14553B/D

MC14553B

3-Digit BCD Counter

The MC14553B 3–digit BCD counter consists of 3 negative edge

triggered BCD counters that are cascaded synchronously. A quad latch

at the output of each counter permits storage of any given count. The

information is then time division multiplexed, providing one BCD

number or digit at a time. Digit select outputs provide display control.

All outputs are TTL compatible.

An on–chip oscillator provides the low–frequency scanning clock

which drives the multiplexer output selector.

This device is used in instrumentation counters, clock displays,

digital panel meters, and as a building block for general logic

applications.

Symbol

Parameter

Value

Unit

DC Supply Voltage Range

– 0.5 to +18.0

V

Input or Output Voltage Range

(DC or Transient)

V

Input Current

(DC or Transient) per Pin

±10

mA

Output Current

(DC or Transient) per Pin

+20

mA

Power Dissipation,

per Package (Note 2.)

500

mW

Ambient Temperature Range

– 55 to +125

°C

Storage Temperature Range

– 65 to +150

°C

Lead Temperature

(8–Second Soldering)

260

°C

1. Maximum Ratings are those values beyond which damage to the device

may occur.

2. Temperature Derating:

Plastic “P and D/DW” Packages: – 7.0 mW/

_C From 65_C To 125_C

This device contains protection circuitry to guard against damage due to high

static voltages or electric fields. However, precautions must be taken to avoid

applications of any voltage higher than maximum rated voltages to this

Unused inputs must always be tied to an appropriate logic voltage level (e.g.,

http://onsemi.com

A

= Assembly Location

WL or L

= Wafer Lot

YY or Y

= Year

WW or W = Work Week

Device

Package

Shipping

ORDERING INFORMATION

MC14553BCP

PDIP–16

25/Rail

MC14553BDW

SOIC–16

47/Rail

MARKING

DIAGRAMS

1

16

PDIP–16

P SUFFIX

CASE 648

MC14553BCP

AWLYYWW

SOIC–16

DW SUFFIX

CASE 751G

1

16

14553B

AWLYYWW