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COP8781C

更新时间： 2024-11-20 22:50:43
品牌 Logo 应用领域
美国国家半导体 - NSC 微控制器
页数 文件大小 规格书
28页 391K
描述
8-Bit One-Time Programmable (OTP) Microcontroller

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COP8781C 数据手册

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August 1996  
COP8780C/COP8781C/COP8782C  
8-Bit One-Time Programmable (OTP) Microcontroller  
Y
Schmitt trigger inputs on Port G  
General Description  
The COP8780C, COP8781C and COP8782C are members  
Y
MICROWIRE/PLUS serial I/O  
Y
Packages:  
of the COPSTM 8-bit microcontroller family. They are fully  
Ð 44 PLCC, OTP, Emulates COP880C, 36 I/O pins  
static microcontrollers, fabricated using double-metal, dou-  
Ð 40 DIP, OTP, Emulates COP880C, 36 I/O pins  
ble poly silicon gate microCMOS EPROM technology.  
Ð 28 DIP, OTP, Emulates COP820C/840C/881C,  
These devices are available as UV erasable or One Time  
24 I/O pins  
Programmable (OTP). These low cost microcontrollers are  
Ð 20 DIP, OTP, Emulates COP822C/842C, 16 I/O pins  
complete microcomputers containing all system timing, in-  
Ð 28 SO, 20 SO, OTP  
terrupt logic, EPROM, RAM, and I/O necessary to imple-  
Ð 44 LDCC, UV Erasable  
ment dedicated control functions in a variety of applications.  
Ð 40 CERDIP, 28 CERDIP, 20 CERDIP, UV Erasable  
Features include an 8-bit memory mapped architecture, MI-  
CROWIRE/PLUSTM serial I/O, a 16-bit timer/counter with  
associated 16-bit autoreload/capture register, and a multi-  
sourced interrupt. Each I/O pin has software selectable op-  
tions to adapt the device to the specific application. These  
devices operate over a voltage range of 4.5V to 6.0V. An  
efficient, regular instruction set operating at a 1 ms instruc-  
tion cycle rate provides optimal throughput.  
CPU/Instruction Set Features  
Y
1 ms instruction cycle time  
Y
Three multi-source interrupts servicing  
Ð External interrupt with selectable edge  
Ð Timer interrupt  
Ð Software interrupt  
Y
Y
Y
Versatile and easy to use instruction set  
8-bit Stack Pointer (SP)Ðstack in RAM  
Two 8-bit Register Indirect Data Memory Pointers  
(B and X)  
The COP8780C, COP8781C and COP8782C can be config-  
ured to EMULATE the COP880C, COP840C and COP820C  
microcontrollers.  
Key Features  
Y
Fully Static CMOS  
Y
16-bit multi-function timer supporting  
Ð PWM mode  
k
1 mA)  
Low current drain (typically  
Ð External event counter mode  
Ð Input capture mode  
Y
Extra-low current static HALT mode  
Single supply operation: 4.5V to 6.0V  
Y
Y
Y
Crystal, RC or External Oscillator, user configurable  
b
a
Temperature range: 40 C to 85 C  
§
§
Y
4 kbytes on-chip OTP EPROM with security feature  
Y
128 or 64 bytes of on-chip RAM, user configurable  
Development Support  
Y
Emulation device for the COP880C, COP840C, and  
COP820C  
I/O Features  
Y
Memory-mapped I/O  
Y
Real-time emulation and full program debug offered by  
MetaLink development system  
Y
Software selectable I/O options (TRI-STATE  
Pull, Weak Pull-Up Input, High Impedance input)  
, Push-  
É
Block Diagram  
TL/DD/11299–1  
FIGURE 1. Block Diagram  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
COPSTM microcontrollers, MICROWIRETM, MICROWIRE/PLUSTM and WATCHDOGTM are trademarks of National Semiconductor Corporation.  
iceMASTERTM is a trademark of MetaLink Corporation.  
C
1996 National Semiconductor Corporation  
TL/DD11299  
RRD-B30M96/Printed in U. S. A.  
http://www.national.com  
1234567...28

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