Datasheet

 2005-2016 Microchip Technology Inc. DS20001952C-page 9
MCP23017/MCP23S17
FIGURE 1-7: GPIO AND INT TIMING
5Data Hold Time T
HD
20 — — ns 1.8V – 5.5V
10 — — ns 2.7V – 5.5V
6CLK Rise Time T
R
—— 2 µsNote 1
7CLK Fall Time T
F
—— 2 µsNote 1
8Clock High Time T
HI
90 — — ns 1.8V – 5.5V
45 — — ns 2.7V – 5.5V
9 Clock Low Time T
LO
90 — — ns 1.8V – 5.5V
45 — — ns 2.7V – 5.5V
10 Clock Delay Time T
CLD
50 — — ns
11 Clock Enable Time T
CLE
50 — — ns
12 Output Valid from Clock Low T
V
— — 90 ns 1.8V – 5.5V
— — 45 ns 2.7V – 5.5V
13 Output Hold Time T
HO
0——ns
14 Output Disable Time T
DIS
— — 100 ns
TABLE 1-4: SPI INTERFACE REQUIREMENTS (CONTINUED)
SPI Interface AC Characteristics: Unless otherwise noted, 1.8V V
DD
 5.5V at -40C  T
A
 +125C
Param.
No.
Characteristic Sym. Min. Typ. Max. Units Conditions
Note 1: This parameter is characterized, not 100% tested.
50
SCL/SCK
SDA/SI
In
GPn
Pin
D0
D1
LSb of data byte zero
during a write or read
INT
Pin
INT Pin Active
51
command, depending
on parameter
Output
GPn
Pin
Input
Inactive
53
52
Register
Loaded