參數(shù)資料
型號(hào): PCA9539RPW,118
廠商: NXP Semiconductors
文件頁(yè)數(shù): 4/37頁(yè)
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24TSSOP
標(biāo)準(zhǔn)包裝: 2,500
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-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 24-TSSOP
包裝: 帶卷 (TR)
包括: POR
其它名稱: 935286605118
PCA9539RPW-T
PCA9539RPW-T-ND
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PCA
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NXP
B.V
.
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ed.
Produ
ct
d
at
a
sheet
Rev
.6
6
Feb
ruary
2013
12
o
f37
N
X
P
Semi
conductor
s
PCA9539;
PCA9539R
16-
bit
I
2C-b
us
an
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SM
Bu
s
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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 10. Read input port register, scenario 1
1101
A1 A0
1
A
S1
START condition
R/W
acknowledge
from slave
002aad728
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
6543210
7
6543210
7
6543210
7
6543210
7
INT
tv(INT_N)
trst(INT_N)
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