COP325C Datasheet | National Semiconductor

Description 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 micro CMOS technology These Controller Oriented Processors are plete microputers 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 COPSTM Microbus TM and MICROWIRETM are trademarks of National Semiconductor Corp TRI-STATE is a registered trademark of National Semiconductor Corp Features Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Lowest power dissipation (50 m W 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-STATE outputs LSTTL CMOS output patible Microbus TM patible Software hardware patible with COP400 family Extended temperature...