74HCT5555 - Programmable delay timer

The 74HC/HCT5555 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).

They are specified in compliance with JEDEC standard no.

7A.

24-stage binary counter integra

• Positive and negative edge triggered.
• Retriggerable or non-retriggerable.
• Programmable delay minimum: 100 ns maximum: depends on input frequency and division ratio.
• Divide-by range of 2 to 224.
• Direct reset terminates output pulse.
• Very low power consumption in triggered start mode.
• 3 oscillator operating modes:.
• RC oscillator.
• Crystal oscillator.
• External oscillator.
• Device is unaffected by varia.