p89lpc9402 NXP Semiconductors, p89lpc9402 Datasheet - Page 7

• Manufacturer Part Number: p89lpc9402
• Description: 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable ?ash With 32 Segment 4 Lcd Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
6. Pinning information
Table 3.
P89LPC9402_1
Product data sheet
Symbol
P0.0 to P0.7
P0.0/CMP2/
KBI0
Pin description
Pin
8
6.1 Pinning
6.2 Pin description
Fig 5.
Type Description
I/O
I/O
O
I
P3.0/XTAL2/CLKOUT
P0.5/CMPREF/KBI5
Pin configuration
Port 0: Port 0 is an 8-bit I/O port with a user-configurable output type. During reset
Port 0 latches are configured in the input only mode with the internal pull-up disabled.
The operation of Port 0 pins as inputs and outputs depends upon the port configuration
selected. Each port pin is configured independently. Refer to
configurations”
The Keypad Interrupt feature operates with Port 0 pins.
All pins have Schmitt trigger inputs.
Port 0 also provides various special functions as described below:
P0.0 — Port 0 bit 0.
CMP2 — Comparator 2 output
KBI0 — Keyboard input 0.
P0.4/CIN1A/KBI4
P0.3/CIN1B/KBI3
P0.2/CIN2A/KBI2
P0.1/CIN2B/KBI1
P0.0/CMP2/KBI0
P1.3/INT0/SDA
P3.1/XTAL1
P1.4/INT1
P1.5/RST
P2.0
P2.1
P1.7
P1.6
V
SS
Rev. 01 — 22 April 2009
and
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
8-bit microcontroller with accelerated two-clock 80C51 core
Table 12 “Static electrical characteristics”
P89LPC9402
P89LPC9402
Section 7.14.1 “Port
for details.
© NXP B.V. 2009. All rights reserved.
002aae473
48
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46
45
44
43
42
41
40
39
38
37
36
35
34
33
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
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