W742E-C811
Description
The W742E/C811 (W742C811 is mask type, W742E811 is electrical erasable EPROM type) is a highperformance 4-bit microcontroller (µC) that built in 640-dot LCD driver.
Key Features
- Operating Voltage - 2.4V - 5.5V for mask type - 2.4V - 4.8V for electrical erasable EPROM type
- Dual-clock Operation
- Main Oscillator
- 3.58 MHz or 400 KHz can be selected by code option - Crystal or RC oscillator can be selected by code option
- Sub-oscillator - Connect to 32.768 KHz crystal only
- 3- Revision A1 W742E/C811
- Eleven Interrupt Sources - Four internal interrupts (Divider0, Divider1, Timer 0, Timer
- Seven external interrupts (RC.0-3, P1.2 ( INT0 ), Serial Port, P1.3 ( INT1 ))
- DTMF Output pin - Output is one channel Dual Tone Multi-Frequency signal for dialling
- 8-bit Serial I/O Interface - 8-bit transmit/receive mode by internal or external clock source
