W79E825A/824A/823B/822B Data Sheet
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FEATURES
Fully static design 8-bit Turbo 51 CMOS microcontroller up to 20MHz when VDD=4.5V to 5.5V,
12MHz when VDD=2.7V to 5.5V
16K/8K/4K/2K
bytes of AP Flash EPROM, with ICP and external writer programmable mode.
256/128
bytes of on-chip RAM.
256/128
bytes NVM Data Flash EPROM for customer data storage used and 10K writer cycles.
Instruction-set compatible with MSC-51.
Two 8-bit bi-directional and one 2-bit bi-directional ports.
Two 16-bit timer/counters.
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).
Four-channel multiplexed with 10-bits A/D convert.
One I2C communication port (Master / Slave).
Eight keypad interrupt inputs.
Two analog comparators.
Configurable on-chip oscillator.
LED drive capability (20mA) on all port pins.
Low Voltage Detect interrupt and reset.
Development Tools:
- JTAG ICE(In Circuit Emulation) tool
- ICP(In Circuit Programming) writer
Packages:
- Lead Free (RoHS) DIP 20:
W79E825ADG
- Lead Free (RoHS) DIP 20:
W79E825ADG
- Lead Free (RoHS) SOP 20:
W79E825ASG
- Lead Free (RoHS) DIP 20:
W79E824ADG
- Lead Free (RoHS) SOP 20:
W79E824ASG
- Lead Free (RoHS) DIP 20:
W79E823BDG
- Lead Free (RoHS) SOP 20:
W79E823BSG
- Lead Free (RoHS) DIP 20:
W79E822BDG
- Lead Free (RoHS) SOP 20:
W79E822BSG
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Publication Release Date: February 21, 2008
Revision A9
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