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