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MCP23S17T-E/ML Datasheet(PDF) 8 Page - Microchip Technology

Part No. MCP23S17T-E/ML
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/ML Datasheet(HTML) 8 Page - Microchip Technology

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MCP23017/MCP23S17
DS20001952C-page 8
 2005-2016 Microchip Technology Inc.
FIGURE 1-5:
SPI INPUT TIMING
FIGURE 1-6:
SPI OUTPUT TIMING
TABLE 1-4:
SPI INTERFACE REQUIREMENTS
SPI Interface AC Characteristics: Unless otherwise noted, 1.8V
V
DD  5.5V at -40C  TA  +125C
Param.
No.
Characteristic
Sym.
Min.
Typ.
Max.
Units
Conditions
Clock Frequency
FCLK
5
MHz
1.8V – 5.5V
10
MHz
2.7V – 5.5V
10
MHz
4.5V – 5.5V
1CS Setup Time
TCSS
50
ns
2CS Hold Time
TCSH
100
ns
1.8V – 5.5V
50
ns
2.7V – 5.5V
3CS Disable Time
TCSD
100
ns
1.8V – 5.5V
50
ns
2.7V – 5.5V
4
Data Setup Time
TSU
20
ns
1.8V – 5.5V
10
ns
2.7V – 5.5V
Note 1:
This parameter is characterized, not 100% tested.
SCK
SI
SO
1
5
4
7
6
3
10
2
LSB in
MSB in
High-Impedance
11
Mode 1,1
Mode 0,0
Note 1:
When using SPI Mode 1,1 the CS pin needs to be toggled once before the first communication after
power-up.
CS (1)
CS
SCK
SO
8
13
MSB out
LSB out
2
14
Don’t Care
SI
Mode 1,1
Mode 0,0
9
12


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