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DESCRIPTION
The WT50F5 is a high-performance, low-cost, CMOS 8-bit single-chip microcontroller with
on-chip 12-bit analog to digital converter and 128 segments LCD driver. This chip can be
used in variable applications where analog (sensor) to digital signal processing and LCD
display are required, including industrial control, consumer, communications, and security
products.
This chip has 8-bit CPU, RAM, ROM, I/Os, dual 16-bit timer/counters, interrupt controller, 16x4 LCD
Driver and an 8-channel 12-bit A/D converter. To be suitable for portable battery-powered applications,
A power saving function is included.
FEATURES
8-bit single chip microcontroller with 8KbytesTM ROM and 384bytes SRAM
Wide voltage operating range from 2.7 V to 5.5 V
On-chip RC oscillator runs at 2MHz and crystal oscillator can run up to 6.0 MHz
6 interrupt sources (external: 1; internal:5); all sources have independent latches each and
multiple interrupt control is available
I/O port (32 pins)
Port P0 8 pins (shared wth analog inputs;4 pins with 20mA sink current)
Port P1 8 pins( 20mA sink current)
Port P2 8 pins (shared with SEG9 ~ SEG16)
Interval Timer (Internal time base generator)
Operating current 2mA/4MHz@5V; providing standby mode (OSC is
stopped and current consumption < 1 uA@5V) and key wake-up mode
Watchdog timer
Dual PWM
Dual 16-bit timer/counters
A/D converter module
8 analog inputs multiplexed into one A/D converter
Sample and hold
20 S conversion time/per channel
12-bit resolution with 2 LSB accuracy
External reference input, AD
VRF
LCD driver (automatically display)
LCD direct driver (max. 16-digit display at 1/4 duty)
1/4, 1/3, 1/2 duties and 1/2, 1/3 biases can be selected by programming
Programming lock for software security; read/write protection (signature compare)
Package: 40-pin PDIP
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