MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

1

REV 3

1/97

1.1GHz Low Power Dual

Modulus Prescaler

With On-Chip Output Termination

The MC12022TSA can be used with CMOS synthesizers requiring

positive edges to trigger internal counters such as Motorola’s MC145XXX

series in a PLL to provide tuning signals up to 1.1GHz in programmable

frequency steps. This device is a reduced current drain version of the

MC12022A/B with the addition of on–chip output termination.

The MC12022TSB can be used with CMOS synthesizers requiring

negative edges to trigger internal counters.

A Divide Ratio Control (SW) permits selection of a 64/65 or 128/129

divide ratio as desired.

The Modulus Control (MC) selects the proper divide number after SW

has been biased to select the desired divide ratio.

NOTE: The “B” Version Is Not Recommended for New Designs

and TTL

FUNCTIONAL TABLE

SW

MC

Divide Ratio

H

H

64

H

L

65

L

H

128

L

L

129

Note: SW: H = VCC, L = Open

MC: H = 2.0 V to VCC, L = GND to 0.8 V

DESIGN GUIDE

Criteria

Value

Unit

Internal Gate Count*

67

ea

Internal Gate Propagation Delay

200

ps

Internal Gate Power Dissipation

0.75

mW

Speed Power Product

0.15

pJ

* Equivalent to a two–input NAND gate

MAXIMUM RATINGS

Symbol

Characteristic

Range

Unit

VCC

Power Supply Voltage, Pin 2

–0.5 to + 7.0

Vdc

TA

Operating Temperature Range

–40 to + 85

°C

Tstg

Storage Temperature Range

–65 to + 150

°C

MECL PLL COMPONENTS

÷64/65, ÷128/129

DUAL MODULUS

PRESCALER

MC12022TSA

MC12022TSB

Pinout: 8–Lead Plastic (Top View)

8

1

IN

IN

7

2

NC

VCC

6

3

MC

SW

5

4

GND

OUT

P SUFFIX

8–LEAD PLASTIC PACKAGE

CASE 626–05

D SUFFIX

8–LEAD PLASTIC SOIC PACKAGE

CASE 751–05