Description

CD4541B programmable timer consists of a 16-stage binary counter, an oscillator that is controlled by external R-C components (2 resistors and a capacitor), an automatic power-on reset circuit, and output control logic. The counter increments on positive-edge clock transitions and can also be reset via the MASTER RESET input.

Features

• Low Symmetrical Output Resistance, Typically 100Ω at VDD = 15V

• Built-In Low-Power RC Oscillator

• Oscillator Frequency Range . . . . . . . . . . DC to 100kHz

• External Clock (Applied to Pin 3) can be Used Instead of Oscillator

• Operates as 2N Frequency Divider or as a Single Transition Timer

• Q/Q Select Provides Output Logic Level Flexibility

• AUTO or MASTER RESET Disables Oscillator During Reset to Reduce Power Dissipation

• Operates With Very Slow Clock Rise and Fall Times

• Capable of Driving Six Low Power TTL Loads, Three Low-Power Schottky Loads, or Six HTL Loads Over the Rated Temperature Range

• Symmetrical Output Characteristics

• 100% Tested for Quiescent Current at 20V

• 5V, 10V, and 15V Parametric Ratings

• Meets All Requirements of JEDEC Standard No. 13B, “Standard Specifications for Description of ‘B’ Series CMOS Devices”