参数资料
型号: PCA9501PW,118
厂商: NXP Semiconductors
文件页数: 23/28页
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 20TSSOP
标准包装: 2,500
接口: I²C,SM 总线
输入/输出数: 8
中断输出:
频率 - 时钟: 400kHz
电源电压: 2.5 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
包括: EEPROM
配用: 568-4002-ND - DEMO BOARD I2C
其它名称: 935271535118
PCA9501PW-T
PCA9501PW-T-ND
PCA9501_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 10 February 2009
4 of 28
NXP Semiconductors
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
6.2 Pin description
[1]
HVQFN20 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
printed-circuit board in the thermal pad region.
Fig 4.
Pin conguration for HVQFN20
002aab999
PCA9501BS
Transparent top view
IO4
IO2
IO3
IO5
IO1
IO6
IO0
IO7
A2
WC
INT
A5
V
SS
A4
A3
A1
A0
V
DD
SDA
SCL
5
11
4
12
3
13
2
14
1
15
6
7
8
9
10
20
19
18
17
16
terminal 1
index area
Table 3.
Pin description
Symbol
Pin
Description
SO20, TSSOP20
HVQFN20
A0
1
19
address lines (internal pull-up)
A1
2
20
A2
3
1
A3
12
10
A4
11
9
A5
9
7
IO0
4
2
quasi-bidirectional I/O pins
IO1
5
3
IO2
6
4
IO3
7
5
IO4
13
11
IO5
14
12
IO6
15
13
IO7
16
14
INT
8
6
active LOW interrupt output (open-drain)
VSS
10
supply ground
WC
17
15
active LOW write control pin
SCL
18
16
I2C-bus serial clock
SDA
19
17
I2C-bus serial data
VDD
20
18
supply voltage
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