W541L250
Description
The W541L250 is fully patible with W741L250 in the terms of pin assignment and IC functon except main oscillator.
Key Features
- Operating voltage: 1.2 ~ 1.8V (LCD drive voltage: 3.0V, or 4.5V)
- Single system clock
- 2048 × 16 bit program ROM (including 2K × 4 bit look-up table) - 128 × 4 bit data RAM (including 16 working registers) - 24 × 4 LCD data RAM
- Power-down mode - Hold function: no operation (except for oscillator) - Stop function: no operation (including main clock)
- Five types of interrupts - Three internal interrupts (Divider 0, Timer 0, Timer
- Two external interrupt (Port RC and INT pin)
- MFP output pin - Output is software selectable as modulating or nonmodulating frequency - Works as frequency output specified by Timer 1
- 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
