參數(shù)資料
型號: PCA9539RBS,118
廠商: NXP Semiconductors
文件頁數(shù): 5/37頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24HVQFN
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): 16
中斷輸出:
頻率 - 時(shí)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: 24-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-HVQFN(4x4)
包裝: 標(biāo)準(zhǔn)包裝
包括: POR
其它名稱: 568-8709-6
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PCA
953
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Produ
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sheet
Rev
.6
6
Feb
ruary
2013
13
o
f37
N
X
P
Semi
conductor
s
PCA9539;
PCA9539R
16-
bit
I
2C-b
us
an
d
SM
Bu
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Remark: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode). It
is assumed that the command byte has previously been set to ‘00’ (read input port register).
Fig 11. Read input port register, scenario 2
1101
A1 A0
1
A
S1
START condition
R/W
acknowledge
from slave
002aad729
A
SCL
SDA
A
read from port 0
P
9
8
7
6
5
4
3
2
1
I0.x
slave address
STOP condition
acknowledge
from master
A
I1.x
acknowledge
from master
A
I0.x
acknowledge
from master
1
I1.x
non acknowledge
from master
data into port 0
read from port 1
data into port 1
INT
tv(INT_N)
trst(INT_N)
DATA 00
DATA 10
DATA 03
DATA 12
DATA 00
DATA 01
th(D)
DATA 02
tsu(D)
DATA 03
tsu(D)
DATA 10
DATA 11
DATA 12
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