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參數(shù)資料
| 型號： | 935271534112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 256 X 8 EEPROM, 8 I/O, PIA-GENERAL PURPOSE, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT-403-1, TSSOP-16 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 131K |
| 代理商： | 935271534112 |
Philips Semiconductors
Product data
PCA9500
8-bit I2C and SMBus I/O port with 2-kbit EEPROM
2002 Sep 27
3
PIN CONFIGURATION
1
2
3
4
5
6
7
8
SW00902
9
10
11
12
13
14
15
16
A0
A1
A2
I/O0
I/O1
I/O2
I/O3
VSS
VDD
SDA
SCL
WC
I/O7
I/O6
I/O5
I/O4
PCA9500
Figure 1. Pin configuration
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
NAME AND FUNCTION
1,2,3
A0–2
Address lines (internal pull-up)
4,5,6,7
I/O0–3
Quasi-bidirectional I/O pins
8
VSS
Supply ground
9,10,11,12
I/O4–7
Quasi-bidirectional I/O pins
13
WC
Active low write control pin
14
SCL
I2C Serial Clock
15
SDA
I2C Serial Data
16
VDD
Supply Voltage
BLOCK DIAGRAM
POWER-ON
RESET
INPUT
FILTER
I2C/SMBus
CONTROL
INPUT/
OUTPUT
PORTS
WRITE pulse
READ pulse
A0
A1
A2
SCL
SDA
VDD
VSS
8-BIT
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
SW01074
PCA9500
WC
EEPROM
256 x 8
300 k
Figure 2. Block diagram
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