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| eltrend WT5058 8-bit 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 u 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 u I/O port (32 pins) u Port P0 u Port P1 u Port P2 u 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 Interval Timer (Internal time base generator) u 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 S conversion time/per channel (OSC is eltrend WT5058 8-bit C with 8KB ROM, an 8-CH 12-bit A/D Converter and 16x4 LCD Driver u 12-bit resolution with 2 LSB accuracy u External reference input, ADVRF u LCD driver (automatically display) u LCD direct drive (max. 8-digit display at 1/4 duty) u 1/4, 1/3, 1/2 duties and 1/2, 1/3 biases can be selected by programming u Package: Chip form, 28/40-pin PDIP or 28-pin Skinny eltrend WT5058 8-bit C with 8KB ROM, an 8-CH 12-bit A/D Converter and 16x4 LCD Driver PACKAGE PIN ASSIGNMENT (40-PIN DIP) P04/AIN4 P05/AIN5 P06/AIN6 P07/AIN7 1 2 3 4 40 39 38 37 VDD P03/AIN3 P02/AIN2 P01/AIN1 ADVRF 5 36 P00/AIN0 P20/SEG9 P21/SEG1 P22/SEG1 P23/SEG1 P24/SEG1 P25/SEG14/VCAP1 6 7 8 35 34 33 P35/SEG6 P34/SEG5 P33/SEG4 P32/SEG3 P31/SEG2 9 10 WT5058 11 12 32 31 30 29 P30/SEG1 P26/SEG15/VCAP2 P27/SEG16/VCAP3 RESET EXTINT 13 14 28 27 P36/SEG7 P37/SEG8 XOUT XIN/ROSC 15 26 P10/PWM 16 25 CLKSEL/TEST P11/PWM 17 18 19 20 24 23 P17/COM P12/ECT0 P16/COM P15/COM P14/COM1 P13/VLCD GND 22 21 eltrend WT5058 8-bit C with 8KB ROM, an 8-CH 12-bit A/D Converter and 16x4 LCD Driver PACKAGE PIN ASSIGNMENT (28-PIN DIP or 28-PIN SKINNY; Option #1) P04/AIN4 P05/AIN5 P06/AIN6 P07/AIN7 1 2 3 4 28 27 26 25 VDD P03/AIN3 P02/AIN2 P01/AIN1 ADVRF 5 24 P00/AIN0 P20/SEG9 P21/SEG1 P22/SEG1 P23/SEG1 P24/SEG1 P10/PWM 6 7 8 23 22 21 RESET EXTINT XOUT XIN/ROSC CLKSEL/TEST 9 10 WT5058 11 12 20 19 18 17 P16/COM P11/PWM P15/COM P14/COM1 P12/ECT0 13 14 16 15 P13/VLCD GND eltrend WT5058 8-bit C with 8KB ROM, an 8-CH 12-bit A/D Converter and 16x4 LCD Driver PACKAGE PIN ASSIGNMENT (28-PIN DIP or 28-PIN SKINNY; Option #2) P04/AIN4 P05/AIN5 P06/AIN6 P07/AIN7 3 4 3 4 28 27 26 25 VDD P03/AIN3 P02/AIN2 P01/AIN1 ADVRF 5 24 P00/AIN0 P20/SEG9 P21/SEG1 P22/SEG1 P23/SEG1 P10/PWM P11/PWM 6 7 8 23 22 21 RESET EXTINT XOUT XIN/ROSC CLKSEL/TEST 9 10 WT5058 11 12 20 19 18 17 P17/COM P12/ECT0 P16/COM P15/COM2 P13/VLCD 13 14 16 15 GND P14/COM eltrend WT5058 8-bit C with 8KB ROM, an 8-CH 12-bit A/D Converter and 16x4 LCD Driver Preliminary PIN FUNCTION PIN NAME P00/AIN0~ P03/AIN3 P04/AIN4~P07/AIN7 P10/PWM0 P11/PWM1 P12/ECT0 P13/VLCD P14/COM1 P15/COM2 P16/COM3 P17/COM4 P20/SEG9 P21/SEG10 P22/SEG11 P23/SEG12 P24/SEG13 P25/SEG14/VCAP1 P26/SEG15/VCAP2 P27/SEG16/VCAP3 P30/SEG1 P31/SEG2 P32/SEG3 P33/SEG4 P34/SEG5 P35/SEG6 P36/SEG7 P37/SEG8 XIN/ROSC XOUT RESET VDD GND ADVRF EXTINT CLKSEL/TEST 40-pin 36 ~ 39 1~4 16 17 18 19 21 22 23 24 6 7 8 9 10 11 12 13 30 31 32 33 34 35 14 15 26 27 29 40 20 5 28 25 In/Out I/O FUNCTIONS 8-bit I/O port; internal pull-up; o/p: sink 20mA(P04~P07); i/p: external pull-low (shared with analog inputs) (shared with PWM output); 8-bit I/O port; internal pullup; o/p: sink 20mA; i/p: external pull-low (External counter) (Bias voltage to LCD) (LCD common output) (LCD common output) (LCD common output) (LCD common output) 8-bit I/O port; internal pull-up; i/p: external pull-low (shared with LCD segment output) P20~P23 support key wake-up I/O I/O I/O 8-bit I/O port; internal pull-up; i/p: external pull-low (shared with LCD segment output) Input Output Input Input Input Input Input Input Crystal input/ROSC input Crystal output System reset signal input; low active Power source Ground Reference voltage input to A/D External interrupt input Clock sources select, connected to VDD for ROSC or to GND for Crystal (Test Pin) eltrend WT5058 8-bit C with 8KB ROM, an 8-CH 12-bit A/D Converter and 16x4 LCD Driver Preliminary |
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