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MCP23S17T-E/SO Datasheet(PDF) 6 Page - Microchip Technology

Part No. MCP23S17T-E/SO
Description  16-Bit I/O Expander with Serial Interface
Download  42 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP23S17T-E/SO Datasheet(HTML) 6 Page - Microchip Technology

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MCP23017/MCP23S17
DS20001952C-page 6
 2005-2016 Microchip Technology Inc.
FIGURE 1-3:
I2C BUS START/STOP BITS TIMING
FIGURE 1-4:
I2C BUS DATA TIMING
TABLE 1-3:
I2C BUS DATA REQUIREMENTS
I2C Interface AC Characteristics: Unless otherwise noted, 1.8V
V
DD  5.5V at -40C  TA  +125C, RPU (SCL,
SDA) = 1 k
, C
L (SCL, SDA) = 135 pF
Param.
No.
Characteristic
Sym.
Min.
Typ.
Max. Units
Conditions
100
Clock High Time:
THIGH
100 kHz mode
4.0
µs
1.8V – 5.5V
400 kHz mode
0.6
µs
2.7V – 5.5V
1.7 MHz mode
0.12
µs
4.5V – 5.5V
101
Clock Low Time:
TLOW
100 kHz mode
4.7
µs
1.8V – 5.5V
400 kHz mode
1.3
µs
2.7V – 5.5V
1.7 MHz mode
0.32
µs
4.5V – 5.5V
102
SDA and SCL Rise Time:
TR
(1)
100 kHz mode
1000
ns
1.8V – 5.5V
400 kHz mode
20 + 0.1 CB
(2)
300
ns
2.7V – 5.5V
1.7 MHz mode
20
160
ns
4.5V – 5.5V
103
SDA and SCL Fall Time:
TF
(1)
100 kHz mode
300
ns
1.8V – 5.5V
400 kHz mode
20 + 0.1 CB
(2)
300
ns
2.7V – 5.5V
1.7 MHz mode
20
80
ns
4.5V – 5.5V
Note 1:
This parameter is characterized, not 100% tested.
2:
CB is specified to be from 10 to 400 pF.
91
93
SCL
SDA
Start
Condition
Stop
Condition
90
92
90
91
92
100
101
103
106
107
109
109
110
102
SCL
SDA
In
SDA
Out


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