P89LPC901FD datasheet(55/55 Pages) PHILIPS

55 / 55 page

Printed in the U.S.A.

All rights are reserved. Reproduction in whole or in part is prohibited without the prior

written consent of the copyright owner.

The information presented in this document does not form part of any quotation or

contract, is believed to be accurate and reliable and may be changed without notice. No

liability will be accepted by the publisher for any consequence of its use. Publication

thereof does not convey nor imply any license under patent- or other industrial or

intellectual property rights.

Date of release: 21 November 2003

Document order number: 9397 750 12293

Contents

Philips Semiconductors

P89LPC901/902/903

8-bit microcontrollers with two-clock 80C51 core

General description . . . . . . . . . . . . . . . . . . . . . . 1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1

Principal features . . . . . . . . . . . . . . . . . . . . . . . 1

2.2

Additional features . . . . . . . . . . . . . . . . . . . . . . 1

Ordering information . . . . . . . . . . . . . . . . . . . . . 3

3.1

Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 3

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pinning information . . . . . . . . . . . . . . . . . . . . . . 7

5.1

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.2

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 8

Logic symbols . . . . . . . . . . . . . . . . . . . . . . . . . 12

Special function registers . . . . . . . . . . . . . . . . 14

Functional description . . . . . . . . . . . . . . . . . . 24

8.1

Enhanced CPU . . . . . . . . . . . . . . . . . . . . . . . . 24

8.2

Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.3

On-chip RC oscillator option . . . . . . . . . . . . . . 25

8.4

Watchdog oscillator option . . . . . . . . . . . . . . . 25

8.5

External clock input option (P89LPC901) . . . . 25

8.6

CPU CLock (CCLK) wake-up delay . . . . . . . . 27

8.7

CPU CLOCK (CCLK) modiﬁcation: DIVM

8.8

Low power select . . . . . . . . . . . . . . . . . . . . . . 27

8.9

Memory organization . . . . . . . . . . . . . . . . . . . 27

8.10

Data RAM arrangement . . . . . . . . . . . . . . . . . 27

8.11

Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8.12

I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

8.13

Power monitoring functions. . . . . . . . . . . . . . . 32

8.14

Power reduction modes . . . . . . . . . . . . . . . . . 32

8.15

Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8.16

Timers/counters 0 and 1 . . . . . . . . . . . . . . . . . 34

8.17

Real-Time clock/system timer. . . . . . . . . . . . . 35

8.18

UART (P89LPC903) . . . . . . . . . . . . . . . . . . . . 35

8.19

Analog comparators . . . . . . . . . . . . . . . . . . . . 37

8.20

Internal reference voltage . . . . . . . . . . . . . . . . 38

8.21

Comparator interrupt. . . . . . . . . . . . . . . . . . . . 38

8.22

Comparator and power reduction modes . . . . 38

8.23

Keypad interrupt (KBI) . . . . . . . . . . . . . . . . . . 39

8.24

Watchdog timer. . . . . . . . . . . . . . . . . . . . . . . . 39

8.25

Additional features . . . . . . . . . . . . . . . . . . . . . 40

8.26

Flash program memory. . . . . . . . . . . . . . . . . . 40

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 43

Static characteristics. . . . . . . . . . . . . . . . . . . . 44

Dynamic characteristics . . . . . . . . . . . . . . . . . 46

Comparator electrical characteristics . . . . . . 47

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 48

Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

14.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 50

14.2

Through-hole mount packages . . . . . . . . . . . 50

14.3

Surface mount packages . . . . . . . . . . . . . . . . 50

14.4

Package related soldering information . . . . . . 52

Revision history . . . . . . . . . . . . . . . . . . . . . . . 53

Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 54

Deﬁnitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

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