W541E Datasheet, PDF (4/13 Pages) Winbond – 4BIT MICROCONTROLLER, 4K ×16 ROM, 256 ×4 RAM 128 -DOT LCD

W541E/C480 DATA SHEET
• Two built-in 8-bit programmable countdown timers
− Timer 0: one of two internal clock frequencies (FOSC/4 or FOSC/1024) can be selected
− Timer 1: includes an auto-reload function; and one of three internal clock frequencies (FOSC
or FOSC/64,Fs) 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: 125 instructions
• 8-level subroutine (include interrupt) nesting
• Up to 1 μS instruction cycle (with 4 MHz operating frequency)
• Packaged in 80-pin QFP
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