Home Appliance

Part No.	W541E/C261
Datasheet	W541E_C261.pdf
Description	The W541E/C261 is a high-performance 4-bit microcontroller (μC) with an LCD driver and the flash EEPROM for the program memory. The device contains a 4-bit ALU, two 8-bit timers, two dividers, a 32 x 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 has two power reduction modes, hold mode and stop mode, which help to minimize power dissipation. The W541E/C261 has 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.
Features	Operating voltage: 2.2V to 5.5V (LCD drive voltage: 3.0V, or 4.5V) Memory 2048 x 16 bit program ROM (including 2K x 4 bit look-up table) 128 x 4 bit data RAM (including 16 working registers) 32 x 4 LCD data RAM Single or Dual Clock Mode: Crystal or RC Dual clock mode: Main clock maximum operating frequency is 4MHz, sub-oscillator is only 32768Hz crystal 21 input/output pins Two power-down mode: Hold mode and Stop mode Five types of interrupts LCD driver output: 32 segment x 4 common MFP output pin Two built-in 14-bit clock frequency divider circuit (divider 0 and divider 1) Two built-in 8-bit programmable countdown timers Built-in 18/14-bit watchdog timer selectable for system reset
Diagram	N/A
Package	Dice or 80 QFP
Other Files	N/A
Development Tools	WHS-W5410
Others	N/A

Contact us: 4bit-HA@nuvoton.com