COP8ACC7 datasheet(1/40 Pages) NSC

Part #	COP8ACC7

Description	8-Bit CMOS OTP Microcontroller with 16k Memory and High Resolution A/D

PDF	40 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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COP8ACC7

8-Bit CMOS OTP Microcontroller with 16k Memory and

High Resolution A/D

General Description

The COP8ACC7 OTP (One Time Programmable) microcon-

trollers are highly integrated COP8™ Feature core devices

with 16k memory and advanced features including a High-

Resolution A/D. This multi-chip CMOS device is suited for

applications requiring a full featured controller with a high

resolution A/D (only one external capacitor required), and for

pre-production devices for a ROM design. Pin and software

compatible (different V

CC range) 4k ROM versions are avail-

able (COPACC5). Erasable windowed versions are available

for use with a range of COP8 software and hardware devel-

opment tools.

Family features include an 8-bit memory mapped architec-

ture, 4 MHz CKI with 2.5 µs instruction cycle, two external

clock options (–XE = Crystal; –RE = RC), 6 channel A/D with

12-bit resolution, analog capture timer, analog current

source and V

CC/2 reference, one multi-function 16-bit timer/

counter, MICROWIRE/PLUS™ serial I/O, two power saving

HALT/IDLE modes, MIWU, high current outputs, software

selectable I/O options, WATCHDOG™ timer and Clock Moni-

tor, 2.7V to 5.5V operation, program code security, and

20/28 pin packages.

Device included in this datasheet is:

Device

Memory (bytes)

RAM (bytes)

I/O Pins

Packages

Temperature

COP8ACC7xxx9

16k OTP EPROM

128

15/23

20 SOIC, 28 DIP/SOIC

0 to +70˚C

COP8ACC7xxx8

16k OTP EPROM

128

15/23

20 SOIC, 28 DIP/SOIC

-40 to +85˚C

Key Features

n Analog Function Block with 12-bit A/D including:

— Analog comparator with seven input muxes

— Constant Current Source and V

CC/2 Reference

— 16-bit capture timer (upcounter) clocked from CKI

with auto reset on timer startup

n Quiet design (reduced radiated emissions)

n 4096 bytes on-board OTP EPROM with security feature

n 128 bytes on-board RAM

Additional Peripheral Features

n Idle Timer

n One 16-bit timer with two 16-bit registers supporting:

— Processor Independent PWM mode

— External Event counter mode

— Input Capture mode

n Multi-Input Wake-Up (MIWU) with optional interrupts

n WATCHDOG and clock monitor logic

n MICROWIRE/PLUS serial I/O with programmable shift

clock-polarity

I/O Features

n Software selectable I/O options (Push-Pull Output, Weak

Pull-Up Input, High Impedance Input)

n High current outputs

n Schmitt Trigger inputs on ports G and L

n Packages:

— 28 DIP/SO with 23 I/O pins

— 20 SO with 15 I/O pins

CPU/Instruction Set Features

n 2.5 µs instruction cycle time

n Eight multi-source vectored interrupt servicing:

— External Interrupt

— Idle Timer T0

— Timer T1 associated Interrupts

— MICROWIRE/PLUS

— Multi-Input Wake Up

— Software Trap

— Default VIS

— A/D (Capture Timer)

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

n Two 8-bit Registers Indirect Data Memory Pointers

(B and X)

Fully Static CMOS

n Two power saving modes: HALT and IDLE

n Temperature ranges: 0˚C to +70˚C, −40˚C to +85˚C

n Available with Crystal (-XE) or R/C (-RE) oscillator

Development System

n Emulation device for COP8ACC5

n Real time emulation and full program debug offered by

MetaLink® development system

Applications

n Battery Chargers

n Appliances

n Data Acquisition systems

Driveway™ is a trademark of Aisys Intelligent Systems.

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

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

iceMASTER® is a registered trademark of MetaLink Corporation.

May 1999

DS012869

www.national.com

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COP8ACC7 Datasheet(PDF) 1 Page - National Semiconductor (TI)

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