MCP23009-E Datasheet, PDF (33/50 Pages) Microchip Technology – 8-Bit I/O Expander with Open-Drain Outputs

MCP23009/MCP23S09
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
41
42
Note 1:
2:
tADEN Time from VDD stable after
POR to ADC enable
—
0
—
µs Note 1
tADDRLAT Time from ADC enable to
address decode and latch
— 50 — ns Note 1
tADDIS Time from raising edge of serial — 10 — ns Note 1
clock to ADC disable
This parameter is characterized, not 100% tested.
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]
42
SCL
© 2009 Microchip Technology Inc.
DS22121B-page 33