Nuvoton Technology Corp. 新唐科技 - 80C51 Microcontroller - 12T
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80C51 Microcontroller - 12T 

Part No. W78E858A
Datasheet  W78E858.pdf
Description The W78E858 is an 8-bit microcontroller which has an in-system programmable Flash EPROM for firmware updating. The instruction set of the W78E858 is fully compatible with the standard 8052. The W78E858 contains a 32K bytes of main Flash EPROM and a 4K bytes of auxiliary Flash EPROM which allows the contents of the 32KB main Flash EPROM to be updated by the loader program located at the 4KB auxiliary Flash EPROM ROM; 768 bytes of on-chip RAM; 128 bytes of EEPROM, 8 extra power down wake-up through INT2 to INT9; 4 channel 8-bit PWM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit timer/counters where the TIMER2 with programmable clock output and 17-bit watchdog timer are built in this device; a serial port. These peripherals are supported by a eight sources two-level interrupt capability
Features
  • Fully static design 8-bit CMOS micro-controller up to 40 MHz
  • 32K bytes of in-system programmable FLASH EPROM for Application Program (APROM)
  • 4K bytes of auxiliary FLASH EPROM for Loader Program (LDROM)
  • Low standby current at full supply voltage
  • 256 + 512 bytes of on-chip RAM
  • 128 bytes on-chip EEPROM memory
  • 64K bytes program memory address space and 64K bytes data memory address space
  • Four 8-bit bi-directional ports
  • One 4-bit bi-directional port
  • Extra interrupts INT2 to INT9 at PORT1
  • Wake-up via external interrupts INT0  INT9
  • Three 16-bit timer/counters
  • One full duplex serial port
  • Fourteen-sources, two-level interrupt capability
  • Programmable Timer2 clock output via P1.0
  • 17-bits watchdog timer
  • Four channels 8-bit PWM
  • Built-in power management
  • Code protection
Diagram N/A
Package DIP40, PLCC44, PQFP44 (Lead-Free RoHS)
Other Files N/A
Development Tools N/A
Others N/A

Contact us:MicroC-8bit@nuvoton.com