COP427C

Lowest power dissipation (50 mW typical)
Fully static (can turn off the clock)
Power saving IDLE state and HALT mode
4 ms instruction time, plus software selectable clocks
2k x 8 ROM, 128 x 4 RAM (COP444C/COP445C)
1k x 8 ROM, 64 x 4 RAM (COP424C/COP425C/ COP426C)
23 I/O lines (COP444C and COP424C)
True vectored interrupt, plus restart
Three-level subroutine stack
Single supply operation (2.4V to 5.5V)
Programmable read/write 8-bit timer/event counter
Internal binary counter register with MICROWIRETM serial I/O capability
General purpose and TRI-STATEÉ outputs
LSTTL/CMOS output compatible
MicrobusTM compatible
Software/hardware compatible with COP400 family
Extended temperature range devices COP324C/ OP325C/COP326C and COP344C/COP345C (-40 to a85)
Military devices (-55 to a125) to be available

The COP424C, COP425C, COP426C, COP444C and COP445C fully static, Single-Chip CMOS Microcontrollers are members of the COPSTM family, fabricated using double- poly, silicon gate microCMOS technology. These Controller Oriented Processors are complete microcomputers containing all system timing, internal logic, ROM, RAM, and I/O necessary to implement dedicated control functions in a variety of applications. Features include single supply operation, a variety of output configuration options, with an instruction set, internal architecture and I/O scheme designed to facilitate keyboard input, display output and BCD data manipulation. The COP424C and COP444C are 28 pin chips. The COP425C and COP445C are 24-pin versions (4 inputs removed) and COP426C is 20-pin version with 15 I/O lines. Standard test procedures and reliable high-density techniques provide the medium to large volume customers with a customized microcontroller at a low end-product cost. These microcontrollers are appropriate choices in many demanding control environments especially those with human interface.

The COP424C is an improved product which replaces the COP420C.