2.0 GHz Super Low Power Dual Modulus Prescaler

   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 Motorolas MC145xxx or Lansdale’s ML145xxx 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 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