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PCF8575CDW 数据表(PDF) 13 Page - Texas Instruments

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部件名 PCF8575CDW
功能描述  REMOTE 16-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT
PDF  26 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

PCF8575CDW 数据表(HTML) 13 Page - Texas Instruments

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A
A
A
A
S
0
1
0
0
A1
A2
A0 1
Data 1
1
P
Data 3
Start
Condition
16 Bits
(2 Data Bytes)
From Port
Data From Port
Slave Address (PCF8575)
R/W
8
7
6
5
4
3
2
1
tir
tir
tsps
tiv
Address
Data 1
Data 3
INT
Data
Into
Port
B
B
A
A
Pn
INT
R/W
A
tir
0.7
× VCC
0.3
× VCC
0.7
× VCC
0.3
× VCC
0.7
× VCC
0.3
× VCC
0.7
× VCC
0.3
× VCC
INT
SCL
View B−B
View A−A
tiv
RL = 4.7 kΩ
VCC
CL = 100 pF
INTERRUPT LOAD CONFIGURATION
DUT
INT
ACK
From Slave
ACK
From Slave
Data 2
Data 2
PCF8575C
REMOTE 16-BIT I2C AND SMBus LOW-POWER I/O EXPANDER
WITH INTERRUPT OUTPUT
SCPS123C – MARCH 2005 – REVISED JULY 2006
PARAMETER MEASUREMENT INFORMATION (continued)
Figure 7. Interrupt Load Circuit and Voltage Waveforms
13
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