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COP684EK

National Semiconductor
Part Number COP684EK
Manufacturer National Semiconductor
Description 8-Bit CMOS ROM Based Microcontrollers with 8k Memory/ Comparator/ and Single-slope A/D Capability
Published Mar 23, 2005
Detailed Description COP87LxxCJ/RJ Family, 8-Bit CMOS OTP Microcontrollers with 4k or 32k Memory and Comparator PRELIMINARY September 1999 ...
Datasheet PDF File COP684EK PDF File

COP684EK
COP684EK

Overview
COP87LxxCJ/RJ Family, 8-Bit CMOS OTP Microcontrollers with 4k or 32k Memory and Comparator PRELIMINARY September 1999 COP87LxxCJ/RJ Family 8-Bit CMOS OTP Microcontrollers with 4k or 32k Memory and Comparator General Description The COP87LxxCJ/RJ Family OTP (One Time Programmable) microcontrollers are integrated COP8™ Base core devices with 4k or 32k memory, and an Analog comparator (no brownout).
These multi-chip CMOS devices are suited for lower-functionality applications, and as pre-production devices for a ROM design.
Low cost, pin and software compatible (plus Brownout) 1k or 2k ROM versions are available (COP820CJ/840CJ Family).
Versions are available for use with a range of COP8 software and hardware development tools.
Family features include an 8-bit memory mapped architecture, 10 MHz CKI with 1µs instruction cycle, three clock opDevice COP87L20CJ COP87L22CJ COP87L40CJ COP87L42CJ COP87L40RJ COP87L42RJ Memory (bytes) 4k OTP EPROM 4k OTP EPROM 4k OTP EPROM 4k OTP EPROM 32k OTP EPROM 32k OTP EPROM RAM (bytes) 64 64 128 128 128 128 tions (-1 = crystal; -2 = external; -3 = internal RC), one multifunction 16-bit timer/counter, MICROWIRE/PLUS™ serial I/O, one analog comparator, power saving HALT mode with multi-sourced wakeup/interrupt capability, on-chip R/C oscillator capacitor, high current outputs, software selectable I/O options, WATCHDOG™ timer, modulator/timer, Power on Reset, program code security, 2.
7V to 5.
5V operation and 20/28 pin packages.
In this datasheet, the term COP87L20CJ refers to the COP87L20CJ, and COP87L22CJ.
COP840CJ refers to the COP87L40CJ, COP87L42CJ, COP87L40RJ, and COP87L42RJ.
Devices included in this datasheet are: I/O Pins 24 16 24 16 24 16 Packages 28 DIP/SOIC 20 DIP/SOIC 28 DIP/SOIC 20 DIP/SOIC 28 DIP/SOIC 20 DIP/SOIC Temperature -40 to +85˚C -40 to +85˚C -40 to +85˚C -40 to +85˚C -40 to +85˚C -40 to +85˚C Key Features n Multi-Input Wakeup (on the 8-bit Port L) n Analog comparator n Modulator/Timer (high speed PWM timer for IR tra...


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