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Número de pieza WT51F104S
Descripción 3T 8052 Micro-controller
Fabricantes Weltrend Semiconductor 
Logotipo Weltrend Semiconductor Logotipo



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WT51F108S/104S
3T 8052 Micro-controller with ADC Function
WT51F108S/104S
3T 8052 Micro-controller
with ADC Function (FLASH)
Data Sheet
Rev. 1.0
June 2016
Copyright Notice
This data sheet is copyrighted by Weltrend Semiconductor, Inc. Do not reproduce, transform to any other format, or
send/transmit any part of this documentation without the express written permission of Weltrend Semiconductor, Inc.
Disclaimers
Right to make change –
This document provides technical information for user. Weltrend Semiconductor, Inc. reserves the right to make change
without further notice to any products herein.
Copyright2016 Weltrend Semiconductor, Inc. All Rights Reserved.
Weltrend reserves right to modify all information contained in this document without notice.

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WT51F104S pdf
WT51F108S/104S
3T 8052 Micro-controller with ADC Function
2. Features
WT51F108S/104S is an advanced 8052 Micro-controller, and it also provides the following features.
3T 8052 core, MCS-51 instruction set compatible
Instruction execution time: Min. = 125ns @24 MHz
512/256 Bytes of RAM (256 Bytes of standard 8052 internal Data RAM + 256 Bytes of external RAM (only
available for WT51F108S))
8K Bytes of flash memory for program storage (4K Bytes for WT51F104S)
Supporting Internal & External Clock Oscillators:
Internal clock: 12 MHz/24 MHz RC oscillator or 32 kHz RC oscillator
External clock: 32.768 kHz ~ 24 MHz Crystal Oscillator
Dual 16-bit Data Pointers (DPTR0 & DPTR1)
One 16-bit Timer/Counters (Timer0)
One Watchdog Timer (WDT)
One Watch Timer
One 16-bit Enhanced Timer with Capture function
One UART (UART0), supports baud rate 1200 bps ~ 230400 bps (at 12 MHz)
Emulated E2PROM
One slave I2C interface
Two 16-bit PWMs (PWM0 & PWM1) with several (up to four) outputs
16-channel 10-bit Analog/Digital Converter (ADC0 ~ ADC15) with Voltage Reference Source (Band-Gap)
Three power-saving modes: Sleep mode, Green mode and Idle mode
8 external Interrupt IRQ pins (IRQ0 ~ IRQ7)
29 programmable bi-directional I/O pins, 7 of them with both high current sink/source ability (20 mA)
Low Voltage Detection (LVD) and Low Voltage Detection Reset (LVDR), both of them are programmable
On-chip Power On Reset (POR) and Low Voltage Reset (LVR)
Built-in single-wire In-Circuit Emulator (ICE) and In-System Program (ISP)
Read Out Protection
Operating voltage range: 1.8V ~ 5.5V
Operating temperature: -40~ +105
Package (Green Package): MSOP10 (118 mil), SOP16 (150 mil), SSOP20 (150 mil), QFN32 (5mm x 5mm)
Copyright2016 Weltrend Semiconductor, Inc. All Rights Reserved.
Weltrend reserves right to modify all information contained in this document without notice.
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WT51F104S arduino
WT51F108S/104S
3T 8052 Micro-controller with ADC Function
Pin Number
Pin Name
Primary Functions
UG32A OG20A SG16A MG10B
WT WT WT WT
I/O
Descriptions
Circuit
Type
68
79
8 10 8
9
10
11
12
13
14
15
GPIOC5D/
ADC9
GPIOC4D/
ADC8
GPIOC3D/
P07
GPIOA7DH
GPIOA6DH
GPIOB7D
GPIOB6D
GPIOC7D
GPIOC6D
GPIOD1
I/O GPIOC5D: General-purpose I/O with programmable
push-pull or open drain
ADC9: Analog/Digital Converter Input 9
I/O GPIOC4D: General-purpose I/O with programmable
push-pull or open drain
ADC8: Analog/Digital Converter Input 8
I/O GPIOC3D: General-purpose I/O with programmable
push-pull or open drain
P07: Mapping to 8052 P0.7 (Notes 2)
I/O GPIOA7DH: General-purpose I/O with
programmable high current sink/source push-pull or
open drain
I/O GPIOA6DH: General-purpose I/O with
programmable high current sink/source push-pull or
open drain
I/O GPIOB7D: General-purpose I/O with programmable
push-pull or open drain
I/O GPIOB6D: General-purpose I/O with programmable
push-pull or open drain
I/O GPIOC7D: General-purpose I/O with programmable
push-pull or open drain
I/O GPIOC6D: General-purpose I/O with programmable
push-pull or open drain
I/O GPIOD1: General-purpose I/O with push-pull
C1
C1
A2
A
A
A
A
A
A
A1
16
GPIOD0
I/O GPIOD0: General-purpose I/O with push-pull
A1
17 11 9
18 12
19 13
20 14 10
GPIOC2D/
ADC3/
P06
GPIOC1D/
IRQ7/
ADC7/
P05
GPIOC0D/
IRQ6/
ADC6/
P04
GPIOB2D/
IRQ5/
ADC5/
PWM0D
I/O GPIOC2D: General-purpose I/O with programmable
push-pull or open drain
ADC3: Analog/Digital Converter Input 3
P06: Mapping to 8052 P0.6 (Notes 2)
I/O GPIOC1D: General-purpose I/O with programmable
push-pull or open drain
IRQ7: External Interrupt Request 7
ADC7: Analog/Digital Converter Input 7
P05: Mapping to 8052 P0.5 (Notes 2)
I/O GPIOC0D: General-purpose I/O with programmable
push-pull or open drain
IRQ6: External Interrupt Request 6
ADC6: Analog/Digital Converter Input 6
P04: Mapping to 8052 P0.4 (Notes 2)
I/O GPIOB2D: General-purpose I/O with programmable
push-pull or open drain
IRQ5: External Interrupt Request 5
ADC5: Analog/Digital Converter Input 5
PWM0D: PWM0 output pin of Path D
A2
C1
C1
C1
Copyright2016 Weltrend Semiconductor, Inc. All Rights Reserved.
Weltrend reserves right to modify all information contained in this document without notice.
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