参数资料
型号: PCA9575PW2,118
厂商: NXP Semiconductors
文件页数: 36/38页
文件大小: 0K
描述: IC I2C/SMBUS 16BIT GPIO 28TSSOP
产品培训模块: I²C Bus Fundamentals
特色产品: NXP - I2C Interface
标准包装: 1
接口: I²C,SM 总线
输入/输出数: 16
中断输出:
频率 - 时钟: 400kHz
电源电压: 1.1 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 标准包装
包括: POR
其它名称: 568-6647-6
PCA9575_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 9 November 2009
7 of 38
NXP Semiconductors
PCA9575
16-bit I2C-bus and SMBus, level translating, low voltage GPIO
6.2 Pin description
[1]
HWQFN24 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
PCB in the thermal pad region.
Table 2.
Pin description
Symbol
Pin
Type
Description
TSSOP28 TSSOP24 HWQFN24
A0
1
-
I
address input 0
VDD
2
1
22
power supply
supply voltage
RESET
3
2
23
I
active LOW reset input
P0_0
4
3
24
I/O
port 0 input/output 0
P0_1
5
4
1
I/O
port 0 input/output 1
P0_2
6
5
2
I/O
port 0 input/output 2
P0_3
7
6
3
I/O
port 0 input/output 3
A1
8
-
I
address input 1
VDD(IO)0
9
7
4
power supply
I/O supply voltage for bank 0
P0_4
10
8
5
I/O
port 0 input/output 0
P0_5
11
9
6
I/O
port 0 input/output 1
P0_6
12
10
7
I/O
port 0 input/output 2
P0_7
13
11
8
I/O
port 0 input/output 3
INT
14
12
9
O
interrupt output (open-drain;
active LOW)
A2
15
-
I
address input 2
VSS
16
13
ground
supply ground
P1_7
17
14
11
I/O
port 1 input/output 4
P1_6
18
15
12
I/O
port 1 input/output 5
P1_5
19
16
13
I/O
port 1 input/output 6
P1_4
20
17
14
I/O
port 1 input/output 7
VDD(IO)1
21
18
15
power supply
I/O supply voltage for bank 1
A3
22
-
I
address input 3
P1_3
23
19
16
I/O
port 1 input/output 3
P1_2
24
20
17
I/O
port 1 input/output 2
P1_1
25
21
18
I/O
port 1 input/output 1
P1_0
26
22
19
I/O
port 1 input/output 0
SDA
27
23
20
I/O
serial data line
SCL
28
24
21
I
serial clock line
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