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Part No.	W541L240
Datasheet	W541L240.pdf
Description	The W541L240 is a high-performance 4-bit microcontroller (μC) that provides an LCD driver. The device contains a 4-bit ALU、a 8-bit timers、a divider、a 24 x 4 LCD driver、and three 4-bit I/O ports. There are also three interrupt sources and 8-level subroutine nesting for interrupt applications. The W541C/L240 operates on low voltage and very low current and has two power reduction modes、hold mode and stop mode、which help to minimize power dissipation. The W541C/L240 is suitable for calculators、simple watches and clocks、multiple I/O products、keyboard controllers、speech synthesis LSI controllers、and other products.
Features	Operating voltage: 1.2V to 1.8V(LCD drive voltage: 3.0V or 4.5V) Single System Clock: Crystal oscillator( 32.768 KHz only) or RC oscillator( 1MHz maximum) Memory 2048 x 16 bit program ROM (shared with 2K x 4 bit look-up table) 64 x 4 bit data RAM (shared with 16 working registers) 24 x 4 LCD data RAM 13 input/output pins Two Power-down mode: Hold mode and Stop mode Three types of interrupts LCD driver output: 24 segment x 4 common MFP output pin Built-in 14-bit clock frequency divider circuit One built-in 8-bit programmable countdown timers Built-in 18/14-bit watchdog timer selectable for system reset
Diagram	N/A
Package	Dice or 64 QFP
Other Files	N/A
Development Tools	WHS-W7410
Others	N/A