Order this document by MC12032A/D
Consider MC12054A for New Design
2.0GHz Dual Modulus Prescaler
The MC12032A 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
The MC12032B 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
• 2.0 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• MC12032A for Positive Edge Triggered Synthesizers
• 12 mA Maximum, –40 to 85°C, VCC = 5.5 Vdc
• Modulus Control Input Level Is Compatible
With Standard CMOS and TTL
• Low–Power 8.5 mA Typical
MECL PLL COMPONENTS
DUAL MODULUS PRESCALER
NOTES: 1. SW: H = VCC, L = Open. A logic L can also be applied by grouunding this pin,
but this is not recommended due to increased power soncumption.
2. MC: H = 2.0 V to VCC, L = GND to 0.8 V.
Internal Gate Count*
Internal Gate Propagation Delay
Internal Gate Power Dissipation
Speed Power Product
NOTE: * Equivalent to a two–input NAND gate
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
–0.5 to 7.0
–40 to 85
Tstg –65 to 150 °C
–0.5 to 6.5
NOTE: ESD data available upon request.
TA =–40° to +85°C
© Motorola, Inc. 1997