CAT1161, CAT1162
D.C. OPERATING CHARACTERISTICS
VCC = 2.7V to 6V, unless otherwise specified.
Symbol Parameter
Test Conditions
fSCL = 100 KHz
VCC = 3.3V
Min
Typ
Max
Units
mA
µA
µA
µA
µA
V
ICC
Power Supply Current
3
40
50
ISB
Standby Current
VCC = 5
ILI
ILO
Input Leakage Current
Output Leakage Current
Input Low Voltage
VIN = GND or VCC
VIN = GND or VCC
2
10
VIL
-1
VCC x 0.3
VCC + 0.5
0.4
VIH
VOL1
Input High Voltage
VCC x 0.7
V
Output Low Voltage (SDA)
IOL = 3 mA, VCC = 3.0V
V
CAPACITANCE
TA = 25ºC, f = 1.0 MHz, VCC = 5V
Symbol
Test
Conditions
VI/O = 0V
VIN = 0V
Max
8
Units
pF
(1)
CI/O
Input/Output Capacitance (SDA)
Input Capacitance (SCL)
(1)
CIN
6
pF
A.C. CHARACTERISTICS
CC = 2.7V to 6.0V unless otherwise specified. Output Load is 1 TTL Gate and 100pF.
V
Symbol Parameter
Min
Max
100
200
3.5
Min
Max
400
200
1
Units
kHz
ns
FSCL
TI(1)
tAA
Clock Frequency
Noise Suppresion Time Constant at SCL, SDA Inputs
SLC Low to SDA Data Out and ACK Out
µs
Time the Bus Must be Free Before a New Transmission
Can Start
(1)
tBUF
4.7
1.2
µs
tHD:STA
tLOW
Start Condition Hold Time
Clock Low Period
4
4.7
4
0.6
1.2
0.6
0.6
0
µs
µs
µs
µs
ns
ns
µs
ns
µs
ns
tHIGH
Clock High Period
tSU:STA
tHD:DAT
tSU:DAT
Start Condition Setup Time (for a Repeated Start Condition) 4.7
Data in Hold Time
0
Data in Setup Time
50
50
(1)
tR
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Condition Setup Time
Data Out Hold Time
1
0.3
(1)
tF
300
300
tSU:STO
tDH
4
0.6
100
100
POWER-UP TIMING (1)(2)
Symbol Parameter
Max
1
Units
ms
tPUR
tPUW
Power-up to Read Operation
Power-up to Write Operation
1
ms
Notes:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) tPUR and tPUW are the delays required from the time VCC is stable until the specific operation can be initiated.
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. 3002 Rev. F
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