520 MHz Dual Modulus Prescaler
The MC12018 is a dual modulus prescaler which divides by 128 and 129. An internal regulat...
520 MHz Dual Modulus Prescaler
The MC12018 is a dual modulus prescaler which divides by 128 and 129. An internal
regulator is provided to allow this device to be used over a wide range of power supply voltages. The devices may be operated by applying a supply voltage of 5.0 Vdc ±10% at Pin 7, or by applying an unregulated voltage source from 5.5 Vdc to 9.5 Vdc to Pin 8.
520 MHz Toggle Frequency Low–Power 8.0 mA Typical Control Input Is Compatible With Standard CMOS and TTL Supply Voltage 4.5 V to 9.5 V On–Chip 10 kΩ Resistor from Positive Edge to Ground
Order this document by MC12018/D
MC12018
MECL PLL COMPONENTS ÷128/129 DUAL MODULUS
PRESCALER
SEMICONDUCTOR TECHNICAL DATA
8 1
D SUFFIX PLASTIC PACKAGE
CASE 751 (SO–8)
SIMPLIFIED BLOCK DIAGRAM
Control Input
TO Vreg
1
0.001 µF Signal Input 5
Signal
6
Gnd 0.001 µF
Vreg
7 0.1 µF
÷N / N+1
3 POS Edge
10 k NEG
2 Edge 4
Gnd
VCC
8 0.1 µF
Voltage
Regulator
1. Vreg at Pin 7 is not guaranteed to be between 4.5 and 5.5 V when VCC is being applied to Pin 8
2. Pin 7 is not to be used as a source of regulated output voltage
3. 10 kΩ pulldown recommended with negative edge output (Pin 2)
8 1
P SUFFIX PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
IN 1 NE 2 PE 3
Gnd 4
8 VCC
7 Vreg 6 SGnd 5 SIN
(Top View)
ORDERING INFORMATION
Device
Operating Temperature Range
Package
MC12018D TA = – 40° to +85°C
MC12018P
SO–8 Plastic
© Motorola, Inc. 1997
Rev 2
MAXIMUM RATINGS Rating
Regulated Voltage, Pin 7 Power Supply Voltage...