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參數(shù)資料
型號: PCA9536DP/DG,118
廠商: NXP Semiconductors
文件頁數(shù): 22/22頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 4B 8TSSOP
特色產(chǎn)品: NXP - I2C Interface
標(biāo)準(zhǔn)包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 4
中斷輸出:
頻率 - 時鐘: 400kHz
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-TSSOP
包裝: 標(biāo)準(zhǔn)包裝
包括: POR
其它名稱: 568-8252-6
PCA9536_5
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 05 — 25 January 2010
9 of 22
NXP Semiconductors
PCA9536
4-bit I2C-bus and SMBus I/O port
7.
Application design-in information
This figure assumes the command byte has previously been programmed with 00h.
Transfer of data can be stopped at any moment by a STOP condition.
Fig 10. Read Input Port register
0000011
A
S1
START condition
R/W
acknowledge
from slave
002aab857
A
acknowledge
from master
SCL
SDA
NA
read from
port
data into
port
P
th(D)
9
8
7
6
5
4
3
2
1
data from port
no acknowledge
from master
data from port
DATA 4
slave address
DATA 1
STOP
condition
DATA 2
DATA 3
DATA 4
tsu(D)
Device address is 1000 001X; IO0, IO2, IO3 configured as outputs; IO1 configured as input.
Fig 11. Typical application
PCA9536
IO0
IO1
SDA
SCL
VDD
002aab858
SDA
SCL
10 k
Ω
10 k
Ω
IO2
IO3
VDD
VSS
MASTER
CONTROLLER
VSS
VDD
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
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