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COP425C Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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COP425C Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 24 page  TLDD5259 April 1992 COP424C COP425C COP426C COP324C COP325C COP326C and COP444C COP445C COP344C COP345C Single-Chip 1k and 2k CMOS Microcontrollers General Description The COP424C COP425C COP426C COP444C and COP445C fully static Single-Chip CMOS Microcontrollers are members of the COPSTM family fabricated using dou- ble-poly silicon gate microCMOS technology These Con- troller Oriented Processors are complete microcomputers containing all system timing internal logic ROM RAM and IO necessary to implement dedicated control functions in a variety of applications Features include single supply oper- ation a variety of output configuration options with an in- struction set internal architecture and IO scheme de- signed 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 IO 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 de- manding control environments especially those with human interface The COP424C is an improved product which replaces the COP420C COPSTM MicrobusTM and MICROWIRETM are trademarks of National Semiconductor Corp TRI-STATE is a registered trademark of National Semiconductor Corp Features Y Lowest power dissipation (50 mW typical) Y Fully static (can turn off the clock) Y Power saving IDLE state and HALT mode Y 4 ms instruction time plus software selectable clocks Y 2k x 8 ROM 128 x 4 RAM (COP444CCOP445C) Y 1k x 8 ROM 64 x 4 RAM (COP424CCOP425C COP426C) Y 23 IO lines (COP444C and COP424C) Y True vectored interrupt plus restart Y Three-level subroutine stack Y Single supply operation (24V to 55V) Y Programmable readwrite 8-bit timerevent counter Y Internal binary counter register with MICROWIRETM serial IO capability Y General purpose and TRI-STATE outputs Y LSTTLCMOS output compatible Y MicrobusTM compatible Y Softwarehardware compatible with COP400 family Y Extended temperature range devices COP324C COP325CCOP326C and COP344CCOP345C (b40 C to a85 C) Y Military devices (b55 Cto a125 C) to be available Block Diagram Not available on COP426CCOP326C TLDD5259 – 1 FIGURE 1 C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
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