eltrend
8-bit
WT5080
µ
C with 4Mb ROM, 6.448Kbytes SRAM,
Push-Pull DAC and 48x32/64x32 LCD Driver
v1.13
DESCRIPTION
The WT5080 is a high-performance, low-cost, CMOS 8-bit single-chip microcontroller with
48x32/64x32 dot-matrix LCD driver, which is suitable for variable applications, especially when
large number of LCD dots and large ROM space are needed, including edutainment toys, speech
synthesizer, Chinese character pagers, databank, handheld games and talking devices.
This chip has 8-bit CPU, RAM, I/Os, dual 16-bit timer/counters, interrupt controller, and a 9-bit
push-pull D/A output. To be suitable for portable battery-powered applications, a power saving
function is included.
FEATURES
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u
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8-bit single chip microcontroller with 48x32/64x32 LCD driver
6.448Kbytes SRAM and 512 Kbytes ROM
Voltage operating range from 2.9 V to 3.2 V
Built-in crystal OSC circuit and RC oscillator with maximum frequency up to 3.0 MHz
5 interrupt sources (external:1; internal:4) ; all sources have independent latches each and
multiple interrupt control is available
4 pins
16 pins
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I/O port (20 pins)
。I/O
port
。I/O
port
u
Watchdog Timer
u
Operating current 1mA/2MHz@3V; key wake-up mode is provided
u
RC OSC OFF and 32.768KHz X’tal ON (LCD Panel OFF): current consumption < 15
uA
@3V
NOTE: LCD panel can be turned off, but 32.768KHz crystal is always ON
u
Dual 16-bit timer/counters
u
9-bit push-pull D/A converter
u
Package: Chip form or 128-pin LQFP (14mm x 14mm x 1.4mm)
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