Datasheet

© 2008 Microchip Technology Inc. DS22103A-page 37
MCP23018/MCP23S18
TABLE 2-3: HARDWARE ADDRESS LATCH TIMING
FIGURE 2-4: HARDWARE ADDRESS LATCH 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
40 t
ADEN
Time from VDD stable after
POR to ADC enable
—0—µsNote1
41 t
ADDRLAT
Time from ADC enable to
address decode and latch
—50—nsNote1
42 t
ADDIS
Time from raising edge of serial
clock to ADC disable
—10—nsNote1
Note 1: This parameter is characterized, not 100% tested.
2: Data in the Typical (“Typ”) column is at 5V, +25°C, unless otherwise stated..
VDD
adc_en
i2c_addr[2:0]
SCL
40
41
42