參數(shù)資料
型號: PCA9554A
廠商: NXP Semiconductors N.V.
英文描述: 8-bit I2C and SMBus I/O port with interrupt
中文描述: 8位I2C和SMBus I / O端口的中斷
文件頁數(shù): 9/20頁
文件大?。?/td> 183K
代理商: PCA9554A
Philips Semiconductors
Product data sheet
PCA9554/PCA9554A
8-bit I
2
C and SMBus I/O port with interrupt
2004 Sep 30
9
TYPICAL APPLICATION
SW2288
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
V
(5 V)
V
DD
SCL
SDA
INT
RESET
MASTER
CONTROLLER
GND
PCA9554/
PCA9554A
A2
A1
A0
V
SS
V
DD
SUBSYSTEM 3
(e.g. alarm
system)
SUBSYSTEM 2
(e.g. counter)
INT
V
DD
ALARM
Controlled Switch
(e.g. CBT device)
ENABLE
10 k
10 k
10 k
2 k
NOTE:
Device address configured as 0100100 for this example
I/O
0
, I/O
1
, I/O
2
, configured as outputs
I/O
3
, I/O
4
, I/O
, configured as inputs
I/O
06
, I/O
7
, are not used and have to be configured as outputs
A
B
10 k
INT
Figure 11. Typcial application.
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PDF描述
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