MCP23017 查看數據表（PDF） - Microchip Technology
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MCP23017 Datasheet PDF : 42 Pages
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MCP23017/MCP23S17
TABLE 1-4: SPI INTERFACE REQUIREMENTS (CONTINUED)
SPI Interface AC Characteristics: Unless otherwise noted, 1.8V VDD 5.5V at -40C TA +125C
Param.
No.
Characteristic
Sym. Min. Typ. Max. Units
Conditions
5 Data Hold Time
THD
20
—
—
ns 1.8V – 5.5V
10
—
—
ns 2.7V – 5.5V
6 CLK Rise Time
7 CLK Fall Time
8 Clock High Time
TR
—
—
2
µs Note 1
TF
—
—
2
µs Note 1
THI
90
—
—
ns 1.8V – 5.5V
45
—
—
ns 2.7V – 5.5V
9 Clock Low Time
TLO
90
—
—
ns 1.8V – 5.5V
45
—
—
ns 2.7V – 5.5V
10 Clock Delay Time
TCLD
50
—
—
ns
11 Clock Enable Time
TCLE
50
—
—
ns
12 Output Valid from Clock Low
TV
—
—
90
ns 1.8V – 5.5V
—
—
45
ns 2.7V – 5.5V
13 Output Hold Time
THO
0
—
—
ns
14 Output Disable Time
TDIS
—
— 100 ns
Note 1: This parameter is characterized, not 100% tested.
FIGURE 1-7:
GPIO AND INT TIMING
SCL/SCK
SDA/SI
In
GPn
Output
Pin
INT
Pin
GPn
Input
Pin
Register
Loaded
D1
D0
LSb of data byte zero
during a write or read
command, depending
on parameter
50
INT Pin Active
51
Inactive
53
52
2005-2016 Microchip Technology Inc.
DS20001952C-page 9
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