W541E20X Datasheet, PDF (2/14 Pages) Winbond – 4 BIT FLASH EPROM MICROCONTROLLER

Preliminary W541E20X
− Timer 1: Offers auto-reload function and one of two internal clock frequencies (FOSC or FOSC/64)
can be selected or falling edge of pin RC.0 can be selected (output through MFP pin)
• Built-in 18/14-bit watchdog timer selectable for system reset
• Powerful instruction set: 118 instructions
• 8-level subroutine (include interrupt) nesting
• One serial transmission/receiver port specified by software
• Up to 1 µS instruction cycle (with 4 MHz operating frequency)
• Packaged in 18-pin, 20-pin, 28-pin PDIP and 20-pin, 28-pin SOP
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