eltrend
WT5058
8-bit
µ
C with 8KB ROM, an 8-CH
12-bit A/D Converter and 16x4 LCD Driver
DESCRIPTION
The WT5058 is a high-performance, low-cost, CMOS 8-bit single-chip microcontroller with
8Kbytes on-chip ROM, an 8-channel 12-bit analog to digital converter and 16x4 LCD driver. This
chip is suitable for variable applications, especially where analog signal (sensor output) to digital
signal conversion 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
u
u
u
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8-bit single chip microcontroller with 8K bytes ROM and 384bytes SRAM
Wide voltage operating range from 2.4 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
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Port P0
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Port P1
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Port P2
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Port P3
8 pins (shared with analog inputs; 4 pins with 20
mA
sink current)
8 pins (20
mA
sink current)
8 pins (shared with SEG9~SEG16)
8 pins (shared with SEG1~SEG8)
u
I/O port (32 pins)
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Interval Timer (Internal time base generator)
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Operating
current
2mA/4MHz@5V;
providing
standby
mode
stopped and current consumption < 1
uA@5V)
and key wake-up mode
u
Watchdog timer
u
Dual PWM
u
Dual 16-bit timer/counters
u
A/D converter module
u
8 analog inputs multiplexed into one A/D converter
u
Sample and hold
u
20
µS
conversion time/per channel
(OSC
is
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