The MC14536B programmable timer is a 24–stage binary ripple counter with 16 stages selectable by a binary code. Provisions for an on–chip RC oscillator or an external clock are provided. An on–chip monostable circuit incorporating a pulse–type output has been included. By selecting the appropriate counter stage in conjunction with the appropriate input clock frequency, a variety of timing can be achieved.

• 24 Flip–Flop Stages — Will Count From 20 to 224

• Last 16 Stages Selectable By Four–Bit Select Code

• 8–Bypass Input Allows Bypassing of First Eight Stages

• Set and Reset Inputs

• Clock Inhibit and Oscillator Inhibit Inputs

• On–Chip RC Oscillator Provisions

• On–Chip Monostable Output Provisions

• Clock Conditioning Circuit Permits Operation With Very Long Rise and Fall Times

• Test Mode Allows Fast Test Sequence

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving Two Low–power TTL Loads or One Low–power Schottky TTL Load Over the Rated Temperature Range