MCP23018/MCP23S18
2
TABLE 2-4:
I C BUS DATA REQUIREMENTS (SLAVE MODE)
Operating Conditions (unless otherwise indicated):
1.8V ≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +125°C
RPU (SCL, SDA) = 1 kΩ, CL (SCL, SDA) = 135 pF.
I2C™ AC Characteristics
Param
No.
Characteristic
Sym
Min
Typ
Max Units
Conditions
100 Clock High Time:
100 kHz mode
THIGH
4.0
0.6
—
—
—
—
—
—
µs 1.8V – 5.5V
µs 1.8V – 5.5V
400 kHz mode
3.4 MHz mode
0.06
µs 2.7V – 5.5V
101 Clock Low Time:
100 kHz mode
TLOW
4.7
1.3
—
—
—
—
—
—
µs 1.8V – 5.5V
µs 1.8V – 5.5V
µs 2.7V – 5.5V
400 kHz mode
3.4 MHz mode
0.16
102 SDA and SCL Rise Time:
100 kHz mode
TR
(Note 1)
—
20 + 0.1 CB
10
—
—
—
1000
300
80
ns 1.8V – 5.5V
ns 1.8V – 5.5V
ns 2.7V – 5.5V
(2)
400 kHz mode
3.4 MHz mode
103 SDA and SCL Fall Time:
100 kHz mode
TF
(Note 1)
—
20 + 0.1 CB
10
—
—
—
300
300
80
ns 1.8V – 5.5V
ns 1.8V – 5.5V
ns 2.7V – 5.5V
(2)
400 kHz mode
3.4 MHz mode
90
91
START Condition Setup Time: TSU:STA
100 kHz mode
4.7
0.6
—
—
—
—
—
—
µs 1.8V – 5.5V
µs 1.8V – 5.5V
µs 2.7V – 5.5V
400 kHz mode
3.4 MHz mode
0.16
START Condition Hold Time:
100 kHz mode
THD:STA
THD:DAT
TSU:DAT
TSU:STO
4.0
0.6
—
—
—
—
—
—
µs 1.8V – 5.5V
µs 1.8V – 5.5V
µs 2.7V – 5.5V
400 kHz mode
3.4 MHz mode
0.16
106 Data Input Hold Time:
100 kHz mode
0
0
0
—
—
—
3.45
0.9
µs 1.8V – 5.5V
µs 1.8V – 5.5V
µs 2.7V – 5.5V
400 kHz mode
3.4 MHz mode
0.07
107 Data Input Setup Time:
100 kHz mode
250
100
0.01
—
—
—
—
—
—
ns 1.8V – 5.5V
ns 1.8V – 5.5V
µs 2.7V – 5.5V
400 kHz mode
3.4 MHz mode
92
STOP Condition Setup Time:
100 kHz mode
4.0
0.6
—
—
—
—
—
—
µs 1.8V – 5.5V
µs 2.7V – 5.5V
µs 4.5V – 5.5V
400 kHz mode
3.4 MHz mode
0.16
Note 1: This parameter is characterized, not 100% tested.
2: CB is specified from 10 to 400 (pF).
3: This parameter is not applicable in high-speed mode (3.4 MHz).
© 2008 Microchip Technology Inc.
DS22103A-page 39
MICROCHIP [ MICROCHIP ]
