参数资料
型号: PCA9554TS,112
厂商: NXP Semiconductors
文件页数: 4/35页
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 20SSOP
标准包装: 75
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: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-LSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-SSOP
包装: 管件
包括: POR
其它名称: 935276771112
PCA9554TS
PCA9554TS-ND
PCA9554_9554A
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 9 — 19 March 2013
12 of 35
NXP Semiconductors
PCA9554; PCA9554A
8-bit I2C-bus and SMBus I/O port with interrupt
7.
Application design-in information
8.
Limiting values
Device address configured as 0100 100X for this example.
IO0, IO1, IO2 configured as outputs.
IO3, IO4, IO5 configured as inputs.
IO6 and IO7 are not used and must be configured as outputs.
Fig 15. Typical application
PCA9554
IO0
IO1
SCL
SDA
VDD
002aac496
SCL
SDA
IO2
IO3
VDD
VSS
MASTER
CONTROLLER
VSS
VDD (5 V)
2 k
Ω
SUBSYSTEM 1
(e.g., temp. sensor)
INT
SUBSYSTEM 2
(e.g., counter)
RESET
controlled switch
(e.g., CBT device)
A
B
enable
INT
10 k
Ω
10 k
Ω
SUBSYSTEM 3
(e.g., alarm system)
ALARM
IO4
IO5
VDD
A2
A1
A0
IO6
IO7
10 k
Ω
10 k
Ω
Table 9.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
VDD
supply voltage
0.5
+6.0
V
II
input current
-
20
mA
VI/O
voltage on an input/output pin
VSS 0.5
5.5
V
IO(IOn)
output current on pin IOn
-
50
mA
IDD
supply current
-
85
mA
ISS
ground supply current
-
100
mA
Ptot
total power dissipation
-
200
mW
Tstg
storage temperature
65
+150
C
Tamb
ambient temperature
operating
40
+85
C
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