80C51 Microcontroller - 12T

The W78I054D/W78I052D/W78I051D series are the 8-bit microcontrollers which can accommodate a wider frequency range with low power consumption. The W78I054D/W78I052D/W78I051D series contains 16K/8K/4K bytes Flash EPROM programmable by hardware writer.
The W78I054D/W78I052D/W78I051D series contains In-System Programmable (ISP) 2KB AP Flash EPROM for loader program, operating voltage from 3V to 5.5V. The W78I054D/W78I052D/W78I051D series feature industrial temperature rage (-40 degrees Celsius to +85 degrees Celsius).

• Fully static design 8-bit CMOS microcontroller
• Industrial temperature grade(-40oC~85oC)
• Pin and Instruction-set compatible with 80C52
• 256 bytes of on-chip scratchpad RAM
• 16K/8K/4K bytes electrically erasable/programmable Flash EPROM
• 2K bytes LDROM support ISP function
• 64KB program memory address space
• 64KB data memory address space
• 12 clocks per machine cycle operation (default), Speed up to 40 MHz
• 6 clocks per machine cycle operation set by the writer, Speed up to 20 MHz
• Four 8-bit bi-directional ports with high sink current for LED driver
• 8-sources, 4-level interrupt capability
• One extra 4-bit bit-addressable I/O port, additional / (available on PQFP, PLCC and LQFP package) Three 16-bit timer/counters
• One full duplex serial port
• Watchdog Timer
• Built-in power management with idle mode and power down mode
• Optional 12T or 6T mode
• Wide supply voltage of 2.4 to 5.5V,
• EMI reduction mode
• Software Reset
• Code protection