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8-bit MCU Series (80C51-based)

Part No. W79E834A/W79E833A/W79E832A
Datasheet W79E834/W79E833/W79E832.pdf
Description W79E834 is an 8-bit Turbo 51 microcontroller which has Flash EPROM which can be programmed by ICP (In Circuit Program) or by writer. The instruction sets of the W79E834 are fully compatible with the standard 8052. W79E834 contains a 8K bytes of main Flash EPROM; a 256 bytes of RAM; 256 bytes AUX-RAM; three 8-bit bi-directional, one 2-bit bi-directional and bit-addressable I/O ports; two 16-bit timer/counters; 8-channel multiplexed 10-bit A/D converter; 4-channel 10-bit PWM; one timer with input capture units; two serial ports that include a SPI and an enhanced full duplex serial port. These peripherals are supported by 13 sources of four-level interrupt capability. To facilitate programming and verification, the Flash EPROM inside W79E834 allow the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security.
Features

• Fully static design 8-bit Turbo 51 CMOS microcontroller up to 16MHz when VDD=4.5V to 5.5V, 12MHz when VDD=2.7V to 5.5V.
• 8K bytes of Flash EPROM (AP Flash EPROM), with ICP and External Writer programmable mode.
• 256 bytes of on-chip RAM.
• 256 bytes of on-chip AUX-RAM.
• Instruction-set compatible with MSC-51.
— On-chip configurable RC oscillator (6MHz)
• Three 8-bit bi-directional and one 2-bit bi-directional port.
• Two 16-bit timer/counters.
• One Timer with three inputs captures capability.
• 13 interrupts source with four levels of priority.
• One enhanced full duplex serial port with framing error detection and automatic address recognition.
• The 4 outputs mode and TTL/Schmitt trigger selectable Port.
• Programmable Watchdog Timer.
• Four-channel 10-bit PWM (Pulse Width Modulator).
• Eight-channel multiplexed with 10-bits A/D converter.
• One SPI with master/slave capability.
• Eight keypad interrupt inputs.
• Built-in power management.
• LED drive capability (20mA) on all port pins.
• Low Voltage Detect interrupt and reset.
• Code protection.
• Development Tools:
JTAG ICE(In Circuit Emulation) tool
ICP(In Circuit Programming) writer

Diagram
Part No. EPROM
Flash Size
RAM NVM Flash EPROM ADC PWM Package
W79E834ALG 8KB 256B 256B 8x10Bit 4x10 Bit LQFP-48 Pin
W79E834ASG 8KB 256B 256B 8x10Bit 4x 10Bit SOP-28 Pin
Package N/A
Other Files N/A
Development Tools N/A
Others N/A
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