CD4541数据手册集成电路（IC）的可编程定时器振荡器规格书PDF

描述 Description

The UTC CD4541 programmable timer comprise a 16-stage binary counter, an integrated oscillator for use with an external capacitor and two resistors, output control logic, and a special power-on reset circuit. The counter divides the oscillator frequency by any of 4 digitally controlled division ratios.

特性 Features

• Operates at 2 frequency divider or as single transition timer
• Increments on positive edge clock transitions
• Wide supply voltage range: 3.0V ~ 15V
• Built-in low power RC oscillator  
• Oscillator frequency range ~ DC to 100 kHz
• External clock applied to Pin 3 can be used instead of oscillator
• Available division ratios 28, 210, 213, or 216
• High noise immunity: 0.45 VDD (typ.)
• Master reset totally independent of automatic reset operation
• Automatic reset initializes all counters when power turns on
• Q/Q select provides output logic level flexibility
• High output drive min. one TTL load
• Maximum input leakage 1μA at 15V over full temperature range