September 1999
COP820CJ/COP840CJ Family
8-Bit CMOS ROM Based Microcontrollers with 1k or 2k
Memory, Comparator and Brown Out Detector
Family features include an 8-bit memory mapped architec-
ture, 10MHz CKI with 1us instruction cycle, one multi-
General Description
The COP820CJ/840CJ Family ROM based microcontrollers
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function 16-bit timer/counter, MICROWIRE/PLUS serial
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are integrated COP8 Base core devices with 1k or 2k
I/O, one analog comparator, power saving HALT mode,
MIWU, on-chip R/C oscillator capacitor (COP840CJ), high
current outputs, software selectable I/O options, WATCH-
memory, an Analog comparator and Brownout detection.
These single-chip CMOS devices are suited for lower-
functionality applications where power and voltage fluctua-
tions are a consideration. Pin and software compatible (no
Brownout; different Vcc range) 4k/32k OTP versions are
available (COP87LxxCJ/RJ Family) for pre-production, and
for use with a range of COP8 software and hardware devel-
opment tools.
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DOG timer, modulator/timer, Brownout detector, Power on
Reset, 2.5v-6.0v operation, and 16/20/28 pin packages.
In this datasheet, the term COP820CJ refers to packages in-
cluding the COP820CJ, COP822CJ, and COP823CJ; and
COP840CJ refers to COP840CJ, COP842CJ, COP940CJ,
and COP942CJ.
Devices included in this data sheet are:
Device
Memory (bytes) RAM (bytes) I/O Pins
Packages
Temperature
Comments
COP820CJ
COP822CJ
COP823CJ
COP840CJ
COP940CJ
COP842CJ
COP942CJ
1k ROM
1k ROM
1k ROM
2k ROM
2k ROM
2k ROM
2k ROM
64
54
24
16
12
24
24
16
16
28 DIP/SOIC -40 to +85˚C
20 DIP/SOIC -40 to +85˚C
64
16 SOIC
-40 to +85˚C
128
128
128
128
28 DIP/SOIC -40 to +85˚C
28 DIP/SOIC -0 to +70˚C
20 DIP/SOIC -40 to +85˚C
20 DIP/SOIC -0 to +70˚C
Low EMI
2.5V-4.5V, CJH = 4V-6V
2.5V-4.5V, CJH = 4V-6V
n Schmitt trigger inputs on Port G
n MICROWIRE/PLUS serial I/O
Key Features
n Multi-Input Wake Up (on the 8-bit Port L)
n Brown out detector
CPU/Instruction Set Feature
n 1 µs instruction cycle time
n Three multi-source vectored interrupts servicing
— External interrupt with selectable edge
— Timer interrupt
n Analog comparator
n Modulator/timer (High speed PWM for IR transmission)
n 16-bit multi-function timer supporting
— PWM mode
— External event counter mode
— Input capture mode
— Software interrupt
n 8-bit Stack Pointer (SP)—stack in RAM
n Two 8-bit register indirect data memory pointers (B, X)
n 1024 or 2048 bytes of ROM
n 64 or 128 bytes of RAM
n Quiet design (low radiated emissions)
n Integrated capacitor for the R/C oscillator for COP840CJ
Fully Static CMOS
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n Low current drain (typically 1 µA)
n Single supply operation: 2.5V to 6.0V
n Temperature ranges: −0˚C to +70˚C and −40˚C to +85˚C
I/O Features
n Software selectable I/O options (TRI-STATE® output,
push-pull output, weak pull-up input, high impedance
input)
Development Support
n Emulation and OTP devices
n Real time emulation and full program debug offered by
MetaLink Development System
n High current outputs (8 pins)
n Packages
— 16 SO with 12 I/O pins for COP820CJ
— 20 DIP/SO with 16 I/O pins
— 28 DIP/SO with 24 I/O pins
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
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COP8 , MICROWIRE , MICROWIRE/PLUS and WATCHDOG are trademarks of National Semiconductor Corporation.
iceMASTER® is a registered trademark of MetaLink Corporation.
© 2000 National Semiconductor Corporation
DS011208
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