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Part No. W541L23X
Datasheet  W541L23X.pdf
Description The W541L23x is high-performance 4-bit microcontroller (μC) that provides an LCD driver. The device contains a 4-bit ALU, two 8-bit timer, two dividers, a 16 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 W541L23x has two power reduction modes, hold mode and stop mode, which help to minimize power dissipation.
The W541L23x 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: 1.2V to 3.6V (LCD drive voltage: 3.0V,or 4.5V)
  • Dual Clock Operation
    • Sub oscillator is 32.768K crystal
    • Main oscillator is built-in 800KHz/400KHz/200KHz/100KHz RC oscillation
  • Memory
    • W541L230: 1K*16 bit ROM, 64*4 bit RAM
    • W541L231: 1.5K*16 bit ROM, 96*4 bit RAM
    • W541L232: 2K*16 bit ROM, 128*4 bit RAM
    • 14 input/output pins
    • Two Power-down mode: Hold mode and Stop mode
    • Five types of interrupts
    • LCD driver output: 16 segment x 4 common
    • Two MFP output pin : MFPB is MFP’s inverse output of MFP 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 PLCC44
    Other Files N/A
    Development Tools WHS-W7410
    Others N/A

    Contact us: 4bit-HA@nuvoton.com