CAT9554A Datasheet, PDF (4/16 Pages) Catalyst Semiconductor – 8-bit I2C and SMBus I/O Port with Interrupt

CAT9554, CAT9554A
A.C. CHARACTERISTICS
V_CC = 2.3V to 5.5V, T_A = -40°C to +85°C, unless otherwise specified⁽¹⁾.
Symbol Parameter
Min
f_SCL
Clock Frequency
t_SP
Input Filter Spike Suppression (SDA, SCL)
t_LOW
Clock Low Period
1.3
t_HIGH
Clock High Period
0.6
t_R(2)
SDA and SCL Rise Time
20
t_F(2)
SDA and SCL Fall Time
20
t_HD:STA Start Condition Hold Time
0.6
t_SU:STA Start Condition Setup Time (for a Repeated Start)
0.6
t_HD:DAT Data Input Hold Time
0
t_SU:DAT Data In Setup Time
100
t_SU:STO Stop Condition Setup Time
0.6
t_AA
SCL Low to Data Out Valid
t_DH
Data Out Hold Time
50
t_BUF(2) Time the Bus must be Free Before a New Transmission Can Start 1.3
Port Timing
t_PV
Output Data Valid
t_PS
Input Data Setup Time
100
t_PH
Input Data Hold Time
1
Interrupt Timing
t_IV
Interrupt Valid
t_IR
Interrupt Reset
Max
400
50
300
300
900
200
4
4
Notes:
1. Test conditions according to "AC Test Conditions" table.
2. This parameter is characterized initially and after a design or process change that affects the parameter. Not 100% tested.
Units
kHz
ns
µs
µs
ns
ns
µs
µs
ns
ns
µs
ns
ns
µs
ns
ns
µs
µs
µs
Doc. No. 25088, Rev. B
4
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice