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P89LPC9402 bảng dữ liệu(PDF) 7 Page - NXP Semiconductors

tên linh kiện P89LPC9402
Giải thích chi tiết về linh kiện  8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 32 segment 4 LCD driver
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P89LPC9402 bảng dữ liệu(HTML) 7 Page - NXP Semiconductors

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P89LPC9402_1
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 — 22 April 2009
7 of 60
NXP Semiconductors
P89LPC9402
8-bit microcontroller with accelerated two-clock 80C51 core
6.
Pinning information
6.1 Pinning
6.2 Pin description
Fig 5.
Pin configuration
P89LPC9402
P0.5/CMPREF/KBI5
S17
P0.4/CIN1A/KBI4
S16
P0.3/CIN1B/KBI3
S15
P0.2/CIN2A/KBI2
S14
P0.1/CIN2B/KBI1
S13
P2.0
S12
P2.1
S11
P0.0/CMP2/KBI0
S10
P1.7
S9
P1.6
S8
P1.5/RST
S7
VSS
S6
P3.1/XTAL1
S5
P3.0/XTAL2/CLKOUT
S4
P1.4/INT1
S3
P1.3/INT0/SDA
S2
002aae473
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
Table 3.
Pin description
Symbol
Pin
Type Description
P0.0 to P0.7
I/O
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 Section 7.14.1 “Port
configurations” and Table 12 “Static electrical characteristics” for details.
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/CMP2/
KBI0
8
I/O
P0.0 — Port 0 bit 0.
O
CMP2 — Comparator 2 output
I
KBI0 — Keyboard input 0.



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