Datasheet

MCP23018/MCP23S18
DS22103A-page 36 © 2008 Microchip Technology Inc.
TABLE 2-2: GP AND INT PINS
FIGURE 2-3: GPIO AND INT TIMING
AC Characteristics Standard Operating Conditions (unless otherwise specified)
1.8V ≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +125°C.
Parameter
No. Sym Characteristic Min Typ
(2)
Max Units Conditions
50 t
GPOV
Serial data to output valid — — 500 ns
51 t
INTD
Interrupt pin disable time — — 600 ns
52 t
GPIV
GP input change to register valid — 450 — ns Note 1
53 t
GPINT
IOC event to INT active — — 600 ns
54 t
GLITCH
Glitch filter on GP pins — — 50 ns Note 1
Note 1: This parameter is characterized, not 100% tested.
2: Data in the Typical (“Typ”) column is at 5V, 25°C, unless otherwise stated.
50
SCL
SDA
In
GPn
Pin
D0
D1
LSb of data byte zero
during a write or read
INT
Pin
INT pin active
INT pin
51
command, depending
on parameter
Output
GPn
Pin
Input
inactive
53
52
Register
Loaded