参数资料
型号: PCA9535CD,118
厂商: NXP Semiconductors
文件页数: 22/26页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 24SOIC
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: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SO
包装: 标准包装
包括: POR
其它名称: 568-8707-6
PCA9535_PCA9535C_5
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 15 September 2008
5 of 31
NXP Semiconductors
PCA9535; PCA9535C
16-bit I2C-bus and SMBus, low power I/O port with interrupt
5.2 Pin description
[1]
HVQFN24 and HWQFN24 package die supply ground is connected to both the VSS pin and the exposed
center pad. The 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.
[2]
PCA9535 I/Os are totem pole, whereas the I/Os on PCA9535C are open-drain.
Table 3.
Pin description
Symbol
Pin
Description
SO24, TSSOP24
HVQFN24,
HWQFN24
INT
1
22
interrupt output (open-drain)
A1
2
23
address input 1
A2
3
24
address input 2
IO0_0
4
1
port 0 input/output[2]
IO0_1
5
2
IO0_2
6
3
IO0_3
7
4
IO0_4
8
5
IO0_5
9
6
IO0_6
10
7
IO0_7
11
8
VSS
12
supply ground
IO1_0
13
10
port 1 input/output[2]
IO1_1
14
11
IO1_2
15
12
IO1_3
16
13
IO1_4
17
14
IO1_5
18
15
IO1_6
19
16
IO1_7
20
17
A0
21
18
address input 0
SCL
22
19
serial clock line
SDA
23
20
serial data line
VDD
24
21
supply voltage
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