
MC12054A
SEMICONDUCTOR
TECHNICAL DATA
MECL PLL COMPONENTS
÷64/65, ÷128/129 LOW POWER
DUAL MODULUS PRESCALER
PIN CONNECTIONS
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
1
8
IN
(Top View)
8
IN
VCC
SW
OUT
NC
MC
Gnd
7
6
5
1
2
3
4
Device
Operating
Temp Range
Package
ORDERING INFORMATION
MC12054AD
TA = –40 to 85°C
SO–8
MC12054A
MOTOROLA WIRELESS RF, IF AND TRANSMITTER DEVICE DATA
4.2–15
2.0 GHz Super Low Power
Dual Modulus Prescaler
The MC12054A is a super low power dual modulus prescaler used in
phase-locked loop applications. Motorola’s advanced Bipolar MOSAIC
V
technology is utilized to achieve low power dissipation of 5.4 mW at a
minimum supply voltage of 2.7 V.
The MC12054A 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 2.0 GHz in programmable frequency
steps.
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.
2.0 GHz Toggle Frequency
The MC12054 is Pin and Functionally Compatible with the MC12031
Low Power 2.0 mA Typical
2.6mA Maximum, –40 to 85°C, VCC = 2.7 to 5.5 Vdc
Short Setup Time (tset) 10ns Maximum @ 2.0 GHz
Modulus Control Input Level is Compatible with Standard
CMOS and TTL
Maximum Input Voltage Should Be Limited to 6.5 Vdc
MOSAIC V is a trademark of Motorola
FUNCTIONAL TABLE
SW
MC
Divide Ratio
H
64
H
L
65
L
H
128
L
129
NOTES: 1. SW: H = VCC, L = Open. A logic L can also be applied by grounding this pin,
but this is not recommended due to increased power consumption.
2. MC: H = 2.0 V to VCC, L = GND to 0.8 V.
MAXIMUM RATINGS
Characteristic
Symbol
Range
Unit
Power Supply Voltage, Pin 2
VCC
–0.5 to 7.0
Vdc
Operating Temperature Range
TA
–40 to 85
°C
Storage Temperature Range
Tstg
–65 to 150
°C
Modulus Control Input, Pin 6
MC
–0.5 to 6.5
Vdc
NOTE:
ESD data available upon request.