W541E261 Datasheet, PDF (2/13 Pages) Winbond – 4BIT MICROCONTROLLER, 2K ×16 ROM, 128 ×4 RAM 128 -DOT LCD

W541E/C261 DATA SHEET
1. INTRODUCTION
The W541E261 and W541C261 are high-performance 4-bit microcontroller (μC) with an LCD driver
and the flash EEPROM and mask ROM for the program memory. The device contains a 4-bit ALU,
two 8-bit timers, two dividers, a 32 × 4 LCD driver, and five 4-bit I/O ports (including 1 output port to
drive the LEDs). There are also five interrupt sources and 8-level subroutine nesting for interrupt
applications. The W541E261 and W541C261 have two power reduction modes, hold mode and stop
mode, which help to minimize power dissipation.
The W541E261 and W541C261 have two oscillator circuits and can work in dual-clock or single-clock
operation mode. It is suitable for remote controllers, watches and clocks, speech synthesis LSI
controllers, hand-held games and other products.
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