參數(shù)資料
型號(hào): 935270674118
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PDSO16
封裝: 3.90 MM, PLASTIC, MS-012, SOT-109-1, SO-16
文件頁數(shù): 14/20頁
文件大?。?/td> 153K
代理商: 935270674118
Philips Semiconductors
Product data
PCA9557
8-bit I2C and SMBus I/0 port with reset
2002 Dec 13
3
PIN CONFIGURATION — SO, TSSOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
su01045
SCL
SDA
A0
A1
A2
I/O0
I/O1
VSS
VDD
RESET
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
Figure 1. Pin configuration
PIN CONFIGURATION — HVQFN
12
11
10
9
5
6
7
8
1
2
3
4
16
15
14
13
SW02015
TOP VIEW
A0
A1
A2
I/O0
I/O1
I/O2
VSS
I/O3
I/O4
I/O5
RESET
VDD
SCL
SDA
I/O7
I/O6
Figure 2. Pin Configuration — HVQFN
PIN DESCRIPTION
SO, TSSOP
PIN
NUMBER
HVQFN
PIN
NUMBER
SYMBOL
FUNCTION
1
15
SCL
Serial clock line
2
16
SDA
Serial data line
3
1
A0
Address input 0
4
2
A1
Address input 1
5
3
A2
Address input 2
6
4
I/O0
I/O0 (open drain)
7
5
I/O1
8
6
VSS
Supply ground
9-14
7-12
I/O2-I/O7
I/O2 to I/O7
15
13
RESET
Active low reset input
16
14
VDD
Supply voltage
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