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Philips Semiconductors
1. Introduction
The P89LPC938 is a single-chip microcontroller designed for applications demanding
high-integration, low cost solutions over a wide range of performance requirements. The
P89LPC938 is based on a high performance processor architecture that executes
instructions in two to four clocks, six times the rate of standard 80C51 devices. Many
system-level functions have been incorporated into the P89LPC938 in order to reduce
component count, board space, and system cost.
1.1 Pin configuration
Fig 1. P89LPC938 TSSOP28 pin configuration.
User manual
1
P2.0/ICB/AD07
P2.1/OCD/AD06
2
P0.0/CMP2/KBI0/AD05
3
P1.7/OCC/AD04
4
5
P1.6/OCB
P1.5/RST
6
V
7
SS
P89LPC938FDH
8
P3.1/XTAL1
9
P3.0/XTAL2/CLKOUT
P1.4/INT1
10
P1.3/INT0/SDA
11
12
P1.2/T0/SCL
13
P2.2/MOSI
P2.3/MISO
14
Rev. 03 — 7 June 2005
UM10119
P89LPC938 User manual
28
P2.7/ICA
27
P2.6/OCA
26
P0.1/CIN2B/KBI1/AD00
25
P0.2/CIN2A/KBI2/AD01
24
P0.3/CIN1B/KBI3/AD02
23
P0.4/CIN1A/KBI4/AD03
22
P0.5/CMPREF/KBI5
21
V
DD
20
P0.6/CMP1/KBI6
19
P0.7/T1/KBI7
18
P1.0/TXD
17
P1.1/RXD
16
P2.5/SPICLK
15
P2.4/SS
002aab101
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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