Datasheet

MCP23008/MCP23S08
DS21919E-page 30 © 2007 Microchip Technology Inc.
FIGURE 2-7: GPIO AND INT TIMING
9 Clock Low Time TLO 90 — — ns 1.8V – 5.5V (I-Temp)
45 — — ns 2.7V – 5.5V (I-Temp)
45 — — ns 4.5V – 5.5V (E-Temp)
10 Clock Delay Time T
CLD 50 — — ns
11 Clock Enable Time T
CLE 50 — — ns
12
(2)
Output Valid from Clock Low TV — — 90 ns 1.8V – 5.5V (I-Temp)
— — 45 ns 2.7V – 5.5V (I-Temp)
— — 45 ns 4.5V – 5.5V (E-Temp)
13 Output Hold Time T
HO 0——ns
14 Output Disable Time T
DIS ——100ns
TABLE 2-3: SPI INTERFACE AC CHARACTERISTICS (CONTINUED)
SPI Interface AC Characteristics
Operating Conditions (unless otherwise indicated):
1.8V ≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +85°C (I-Temp)
4.5V ≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +125°C (E-Temp) (Note 1)
Param
No.
Characteristic Sym Min Typ Max Units Conditions
Note 1: This parameter is characterized, not 100% tested.
2: TV = 90 ns (max) when address pointer rolls over from address 0x0A to 0x00.
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