COP823CJ datasheet(1/35 Pages) NSC

Part #	COP823CJ

Description	8-Bit CMOS ROM Based Microcontrollers with 1k or 2k Memory, Comparator and Brown Out Detector

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COP820CJ/COP840CJ Family

8-Bit CMOS ROM Based Microcontrollers with 1k or 2k

Memory, Comparator and Brown Out Detector

General Description

The COP820CJ/840CJ Family ROM based microcontrollers

are integrated COP8™ Base core devices with 1k or 2k

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.

Family features include an 8-bit memory mapped architec-

ture, 10MHz CKI with 1us instruction cycle, one multi-

function 16-bit timer/counter, MICROWIRE/PLUS™ serial

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-

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

1k ROM

64

24

28 DIP/SOIC

-40 to +85˚C

COP822CJ

1k ROM

54

16

20 DIP/SOIC

-40 to +85˚C

COP823CJ

1k ROM

64

12

16 SOIC

-40 to +85˚C

COP840CJ

2k ROM

128

24

28 DIP/SOIC

-40 to +85˚C

Low EMI

COP940CJ

2k ROM

128

24

28 DIP/SOIC

-0 to +70˚C

2.5V-4.5V, CJH = 4V-6V

COP842CJ

2k ROM

128

16

20 DIP/SOIC

-40 to +85˚C

COP942CJ

2k ROM

128

16

20 DIP/SOIC

-0 to +70˚C

2.5V-4.5V, CJH = 4V-6V

Key Features

n

Multi-Input Wake Up (on the 8-bit Port L)

n

Brown out detector

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

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

I/O Features

n

Software selectable I/O options (TRI-STATE® output,

push-pull output, weak pull-up input, high impedance

input)

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

n

Schmitt trigger inputs on Port G

n

MICROWIRE/PLUS serial I/O

CPU/Instruction Set Feature

n

1 µs instruction cycle time

n

Three multi-source vectored interrupts servicing

— External interrupt with selectable edge

— Timer interrupt

— Software interrupt

n

8-bit Stack Pointer (SP) — stack in RAM

n

Two 8-bit register indirect data memory pointers (B, X)

Fully Static CMOS

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

Development Support

n

Emulation and OTP devices

n

Real time emulation and full program debug offered by

MetaLink Development System

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

COP8™, MICROWIRE™, MICROWIRE/PLUS™ and WATCHDOG™ are trademarks of National Semiconductor Corporation.

iceMASTER® is a registered trademark of MetaLink Corporation.

September 1999

DS011208

www.national.com

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