W78E054D Datasheet, PDF (5/89 Pages) List of Unclassifed Manufacturers – 8-bit microcontroller

W78E054D/W78E052D Data Sheet
2 FEATURES
 Fully static design 8-bit CMOS microcontroller
 Optional 12T or 6T mode
 12T Mode, 12 clocks per machine cycle operation (default), Speed up to 40 MHz/5V
 6T Mode, 6 clocks per machine cycle operation set by the writer, Speed up to 20 MHz/5V
 Wide supply voltage of 2.4V to 5.5V
 Temperature grade is (-40^oC~85^oC)
 Pin and Instruction-sets compatible with MCS-51
 256 bytes of on-chip scratchpad RAM
 16K/8K bytes electrically erasable/programmable Flash EPROM
 2K bytes LDROM support ISP function (Reference Application Note)
 64KB program memory address space
 64KB data memory address space
 Four 8-bit bi-directional ports
 8-sources, 4-level interrupt capability
 One extra 4-bit bit-addressable I/O port, additional INT2 / INT3 (available on PQFP, PLCC and
LQFP package)
 Three 16-bit timer/counters
 One full duplex serial port
 Watchdog Timer
 EMI reduction mode
 Software Reset
 Built-in power management with idle mode and power down mode
 Code protection
 Packages: DIP40, PLCC44, PQFP44, LQFP48, TQFP44
Publication Release Date: Jun 9, 2015
-5-
Revision A13