MCP23009/MCP23S09
2.2 AC CHARACTERISTICS
FIGURE 2-1:
LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
VDD
SCL and
SDA pin
MCP23009
1 k
135 pF
Pin
50 pF
FIGURE 2-2:
VDD
RESET
Internal
RESET
RESET AND DEVICE RESET TIMER TIMING
30
32
31
34
Output pin
TABLE 2-1: RESET AND DEVICE RESET TIMER REQUIREMENTS
AC Characteristics
Electrical Characteristics: Unless otherwise indicated, all limits are specified for
1.8V VDD 5.5V at -40C TA +125C.
Param.
No.
Sym.
Characteristic
Min. Typ.(2) Max. Units
Conditions
30
32
31
34
Note 1:
2:
TRSTL RESET Pulse Width (low)
1 — — µs VDD = 5.0V
THLD Device active after reset high —
0
— µs VDD = 5.0V
TPOR POR at device power-up
— 20 — µs VDD = 5.0V
TIOZ Output high-impedance from
——
1
µs
RESET Low
This parameter is characterized, not 100% tested.
Data in the Typical (“Typ”) column is at 5V, +25C, unless otherwise stated.
2009-2014 Microchip Technology Inc.
DS20002121C-page 31