EF68B40P Datasheet PDF – Programmable Timer Module

Part Number: EF68B40P

Function: Frequency clock 2 MHz Programmable Timer

Package: DIP 28 Pin Type

Manufacturer: STMicroelectronics , Thomson Semicondcutor

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EF68B40P datasheet


The EF68B40P is a programmable subsystem component of the 6800 family designed to provide variable system time intevals. The EF6840 has three 16-bit binary counters, three corresponding control registers and a status register. These counters are under software control and may be used to cause system interrupts and / or generate output signals.



1. Operates from a single 5 V power supply

2. Single system clock required ( Enable )

3. Fully TTL compatible

4. Programmable interrupt (IRQ) output to MPU

5. Readable down counter indicates conunts to go to time-out

6. Three maskable outputs


Other data sheets are available within the file: EF6840, EF6840C, EF6840E, EF6840J, EF6840P, EF68A40P

EF68B40P Datasheet PDF Download

EF68B40P pdf