ML12054A Datasheet, PDF (1/4 Pages) LANSDALE Semiconductor Inc. – 2.0 GHz Super Low Power Dual Modulus Prescaler

ML12054A
2.0 GHz Super Low Power
Dual Modulus Prescaler
MECL PLL COMPONENTS ÷64/65, ÷128/129
SEMICONDUCTOR TECHNICAL DATA
Legacy Device: Motorola MC12054A
The ML12054A is a super low power dual modulus
prescaler used in phase-locked loop applications with low
power dissipation of 5.4 mW at a minimum supply voltage
of 2.7 V.
The ML12054A can be used with CMOS synthesizers
requiring positive edges to trigger internal counters such as
Motorola's MC145xxx or Lansdale’s ML145xxx series in a
PLL to provide tuning signals up to 2.0 GHz in programma-
ble 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 num-
ber after SW has been biased to select the desired divide
ratio.
• 2.0 GHz Toggle Frequency
• The ML12054A is Pin and Functionally Compatible
with the Motorola MC12031
• Low Supply Current 2.0 mA Typical
• 2.6mA Maximum, 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
• Operating Temperature Range TA = –40 to 85°C
FUNCTIONAL TABLE
8
1
SO 8 = -5P
PLASTIC PACKAGE
CASE 751
(SO–8)
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE MOTOROLA LANSDALE
SO 8
MC12054AD ML12054A-5P
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
PIN CONNECTIONS
IN ¹
VCC 2
SW 3
OUT ⁴
8 IN
7 _NC
6 MC
5 Gnd
(Top View)
SW
MC
Divide Ratio
H
H
64
H
L
65
L
H
128
L
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
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
Symbol
Range
Unit
VCC
–0.5 to 7.0
Vdc
TA
–40 to 85
°C
Tstg
–65 to 150
°C
MC
–0.5 to 6.5
Vdc
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