MC12018

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...