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Part No.	W541L20X
Datasheet	W541L20X.pdf
Description	The W541L20X is a high-performance 4-bit microcontroller (μC) that operates on very low current. The device contains a 4-bit ALU, two 8-bit timers, a divider, a serial port, and five 4-bit I/O ports (including 3 output ports for LED driving). There are also seven interrupt sources and 8-level subroutine nesting for interrupt applications. The W541E/C/L20X has two power reduction modes, hold mode and stop mode, which help to minimize power dissipation. The W541E/C/L20X is suitable for remote controllers, toy controllers, keyboard controllers, speech synthesis LSI controllers, and other products.
Features	Operating Voltage: 1.2V to 1.8V Single system clock: Crystal or RC, Operating frequency: 1MHz(max) 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) 21 input/output pins Two Power-down mode: Hold mode and Stop mode Seven types of interrupts MFP output pin Built-in 14-bit clock frequency divider circuit Two built-in 8-bit programmable countdown timers Built-in 18/14-bit watchdog timer selectable for system reset One serial transmission/receiver port specified by software
Diagram	N/A
Package	Dice or DIP18/28,SOP20/28
Other Files	N/A
Development Tools	WHS-W7410
Others	N/A