MOTOROLA CMOS LOGIC DATA

1

MC14566B

Industrial Time Base Generator

The MC14566B industrial time base generator is constructed with MOS

P–channel and N–channel enhancement mode devices in a single

monolithic structure. This device consists of a divide–by–10 ripple counter

and a divide–by–5 or divide–by–6 ripple counter to permit stable time

generation from a 50 or 60 Hz line. By cascading this device as divide–by–60

counters, seconds and minutes can be counted and are available in BCD

format at the circuit outputs. An internal monostable multivibrator is included

whose output can be used as a reset or clock pulse providing additional

frequency flexibility. Also a pin has been included to allow divide–by–5

counting for generating 1.0 Hz from European 50 Hz line. Pin 11 = VDD will

cause

÷ 5.

• Negative Edge Triggered Counters for Ease of Cascading

• Pulse Shapers on Counter Inputs Accept Slow Input Rise Times

• Monostable Multivibrator Positive or Negative Edge Triggered

• Diode Protection on All Inputs

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving Two Low–power TTL Loads or One Low–power

Schottky TTL Load Over the Rated Temperature Range

Symbol

Parameter

Value

Unit

VDD

DC Supply Voltage

– 0.5 to + 18.0

V

Vin, Vout Input or Output Voltage (DC or Transient)

– 0.5 to VDD + 0.5

V

Iin, Iout

Input or Output Current (DC or Transient),

per Pin

± 10

mA

PD

Power Dissipation, per Package†

500

mW

Tstg

Storage Temperature

– 65 to + 150

_C

TL

Lead Temperature (8–Second Soldering)

260

_C

* Maximum Ratings are those values beyond which damage to the device may occur.

†Temperature Derating:

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

_C From 65_C To 125_C

Ceramic “L” Packages: – 12 mW/

_C From 100_C To 125_C

BLOCK DIAGRAM

CA

÷10

RESET

÷5/÷6 CONTROL

CB

÷5/÷6

B

A

BCD

OUT

BCD

OUT

Qm

10

1

2

11

15

7

9

PULSE

SHAPER

PULSE

SHAPER

MONO–

STABLE

MULTI–

VIBRATOR

Q0A

Q1A

Q2A

Q3A

R

C

R

Q0B

Q1B

Q2B

C

3

4

5

6

12

13

14

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

REV 3

1/94

MC14566B

L SUFFIX

CERAMIC

CASE 620

ORDERING INFORMATION

MC14XXXBCP

Plastic

MC14XXXBCL

Ceramic

MC14XXXBD

SOIC

TA = – 55° to 125°C for all packages.

P SUFFIX

PLASTIC

CASE 648

D SUFFIX

SOIC

CASE 751B

PIN ASSIGNMENT

13

14

15

16

9

10

11

12

5

4

3

2

1

8

7

6

Q0B

Q1B

Q2B

CB

VDD

A

Qm

B5/B6

Q1A

Q0A

RESET

CA

VSS

B

Q3A

Q2A