P89LPC9401
Philips Semiconductors
8-bit two-clock 80C51 microcontroller with 32 segment × 4 LCD driver
7.26.13 Blinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.26.13.1 I2C-bus controller . . . . . . . . . . . . . . . . . . . . . . 39
7.26.14 Input filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.26.15 I2C-bus slave addresses. . . . . . . . . . . . . . . . . 40
7.27
Flash program memory. . . . . . . . . . . . . . . . . . 40
General description. . . . . . . . . . . . . . . . . . . . . 40
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Flash organization . . . . . . . . . . . . . . . . . . . . . 40
Using flash as data storage . . . . . . . . . . . . . . 40
Flash programming and erasing. . . . . . . . . . . 41
In-circuit programming . . . . . . . . . . . . . . . . . . 41
In-application programming . . . . . . . . . . . . . . 41
In-system programming . . . . . . . . . . . . . . . . . 41
Power-on reset code execution. . . . . . . . . . . . 42
7.27.1
7.27.2
7.27.3
7.27.4
7.27.5
7.27.6
7.27.7
7.27.8
7.27.9
7.27.10 Hardware activation of the boot loader. . . . . . 42
7.28
7.29
User configuration bytes. . . . . . . . . . . . . . . . . 42
User sector security bytes . . . . . . . . . . . . . . . 42
8
9
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 43
Static characteristics. . . . . . . . . . . . . . . . . . . . 44
10
10.1
10.2
Dynamic characteristics . . . . . . . . . . . . . . . . . 46
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
ISP entry mode. . . . . . . . . . . . . . . . . . . . . . . . 53
11
11.1
12
13
14
15
16
17
18
19
Other characteristics. . . . . . . . . . . . . . . . . . . . 53
Comparator electrical characteristics . . . . . . . 53
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 54
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 55
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 56
Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 57
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Contact information . . . . . . . . . . . . . . . . . . . . 57
© Koninklijke Philips Electronics N.V. 2005
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: 5 September 2005
Document number: P89LPC9401_1
Published in the Netherlands