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PIC16C55XA

EPROM-Based 8-Bit CMOS Microcontroller

Microchip Technology 

PIC16C55X(A)

Table of Contents

1.0 General Description......................................................................................................................................................................5

2.0 PIC16C55X(A) Device Varieties...................................................................................................................................................7

3.0 Architectural Overview .................................................................................................................................................................9

4.0 Memory Organization ................................................................................................................................................................ 13

5.0 I/O Ports .................................................................................................................................................................................... 23

6.0 Timer0 Module .......................................................................................................................................................................... 29

7.0 Special Features of the CPU..................................................................................................................................................... 35

8.0 Instruction Set Summary ........................................................................................................................................................... 51

9.0 Development Support................................................................................................................................................................ 63

10.0 Electrical Specifications............................................................................................................................................................. 67

11.0 Packaging Information............................................................................................................................................................... 79

Appendix A: Enhancements............................................................................................................................................................ 87

Appendix B: Compatibility ............................................................................................................................................................... 87

INDEX .................................................................................................................................................................................................. 89

PIC16C55X(A) Product Identification System...................................................................................................................................... 95

To Our Valued Customers

We constantly strive to improve the quality of all our products and documentation. To this end, we recently con-

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missed a few things. If you find any information that is missing or appears in error from the previous version of this

data sheet (PIC16C55X(A) Data Sheet, Literature Number DS40143B), please use the reader response form in the

back of this data sheet to inform us. We appreciate your assistance in making this a better document.

© 1997 Microchip Technology Inc.

Preliminary

DS40143B-page 3

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