COPCH912C Datasheet, PDF (1/20 Pages) National Semiconductor (TI) – 8-Bit Microcontroller

August 2000
COP912C
8-Bit Microcontroller
General Description
Note: COP8SA devices are instruction set and pinout com-
patible supersets of the COP912C devices, and are replace-
ments for these in new designs when possible.
The COP912C ROM based microcontrollers are integrated
COP8(tm) Base core devices with smaller memory (768
bytes), and fewer on-board features. These single-chip
CMOS devices are suited for lower-functionality applications
where system cost is of prime consideration. Pin and soft-
ware compatible (different Vcc range) 4k/32k OTP versions
are available (COP87LxxCJ/RJ Family). Erasable windowed
versions are available for use with a range of COP8(tm) soft-
ware and hardware development tools.
Family features include an 8-bit memory mapped architec-
ture, 10MHz CKI with 2.5us(912C) or 2us(912CH) instruction
cycle, one multi-function 16-bit timer/counter with PWM,
MICROWIRE/PLUS(tm) serial I/O, power saving HALT
mode, three clock modes, high current outputs, software se-
lectable I/O options, multi-volt operation and 20 pin pack-
ages.
Devices included in this datasheet are:
Device
COP912C
COP912CH
Memory (bytes)
768 ROM
768ROM
RAM
(bytes)
64
64
I/O Pins
16
16
Key Features
n Lowest cost COP8 microcontroller
n 16-bit multi-function timer supporting
— PWM mode
— External event counter mode
— Input capture mode
n 768 bytes of ROM
n 64 bytes of RAM
I/O Features
n Memory mapped I/O
n Software selectable I/O options (TRI-STATE^® Output,
Push-Pull Output, Weak Pull-Up Input, High Impedance
Input)
n Schmitt trigger inputs on Port G
n MICROWIRE/PLUS™ Serial I/O
n Packages: 20 DIP/SO with 16 I/O pins
CPU/Instruction Set Features
n Instruction cycle time of 2 µs for COP912CH and
2.5 µs for COP912C
n Three multi-sourced interrupts servicing
— External Interrupt with selectable edge
— Timer interrupt
— Software interrupt
Packages
Temperature
Comments
20 DIP/SOIC
20 DIP/SOIC
0 to +70˚C
0 to +70˚C
2.3v - 4.0v
4.0v - 5.5v
n Versatile and easy to use instruction set
n 8-bit Stack Pointer (SP) — stack in RAM
n Two 8-bit Register Indirect Memory Pointers (B, X)
Fully Static CMOS
n Low current drain (typically < 1 µA)
n Single supply operation: 2.3V to 4.0V or 4.0V to 5.5V
n Temperature range: 0˚C to +70˚C
Development Support
n Emulation and OTP devices
n Real time emulation and full program debug offered by
MetaLink Development System
Applications
n Electronic keys and switches
n Remote Control
n Timers
n Alarms
n Small industrial control units
n Low cost slave controllers
n Temperature meters
n Small domestic appliances
n Toys and games
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
COP8™, MICROWIRE/PLUS™, WATCHDOG™ and MICROWIRE™ are trademarks of National Semiconductor Corporation.
PC^® is a registered trademark of International Business Machines Corp.
iceMaster™ is a trademark of MetaLink Corporation.
© 2000 National Semiconductor Corporation DS012060
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