Weltrend | Products

8-bit MCUs

WT51F108S

The Weltrend WT51F108S is a general-purpose single chip microcontroller. In addition to using the advanced 3T 8052 single-chip core, wide and low operating voltage range (1.8V ~ 5.5V), and high noise immunity, the product consists of 8Kx8 Flash Program Memory, 512x8 RAM, abundant peripheral resources, and versatile power management.The above features make the WT51F108S suitable for a wide range of applications, especially in areas such as home appliances, cooling fan, electronic ballast, car alarm, ultrasonic parking assistant sensors, and so on. The WT51F108S is a low cost high performance product with various kinds of package options to replace the mainstream products on the market. For further competitiveness, Weltrend also provides the product in dice and wafer format.

Features

- 3T 8052 core, MCS-51 instruction set compatible
- Instruction execution time: Min. = 125ns @24 MHz
- 512 Bytes of RAM (256 Bytes of standard 8052 internal Data RAM + 256 Bytes of external RAM)
- 8K Bytes of flash memory for program storage
- 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)

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