W79E825A Datasheet, PDF (5/127 Pages) Winbond – 8-BIT MICROCONTROLLER

W79E825A/824A/823B/822B Data Sheet
2 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
Publication Release Date: February 21, 2008
-5-
Revision A9