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CAT5221WI-25 Datasheet, PDF (4/16 Pages) ON Semiconductor – Dual Digitally Programmable Potentiometer with 64 Taps and I2C Interface
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CAT5221
D.C. OPERATING CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Test Conditions
Min
Typ
Max Units
ICC
ISB
ILI
ILO
VIL
VIH
VOL1
Power Supply Current
fSCL = 400kHz
Standby Current (VCC = 5.0V) VIN = GND or VCC; SDA Open
Input Leakage Current
VIN = GND to VCC
Output Leakage Current
VOUT = GND to VCC
Input Low Voltage
-1
Input High Voltage
Output Low Voltage (VCC = 3.0V)
IOL = 3 mA
VCC x 0.7
1
mA
1
µA
10
µA
10
µA
VCC x 0.3 V
VCC + 1.0 V
0.4
V
CAPACITANCE
TA = 25°C, f = 1.0MHz, VCC = 5V
Symbol Parameter
Test Conditions Min Typ Max Units
CI/O(1)
CIN(1)
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, A2, A3, SCL)
VI/O = 0V
VIN = 0V
8
pF
6
pF
A.C. CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Min
fSCL Clock Frequency
TI(1) Noise Suppression Time Constant at SCL, SDA Inputs
tAA SLC Low to SDA Data Out and ACK Out
tBUF(1) Time the Bus Must Be Free Before a New Transmission Can Start 1.2
tHD:STA Start Condition Hold Time
0.6
tLOW Clock Low Period
1.2
tHIGH Clock High Period
0.6
tSU:STA Start Condition Setup Time (For a Repeated Start Condition)
0.6
tHD:DAT Data in Hold Time
0
tSU:DAT Data in Setup Time
100
tR(1) SDA and SCL Rise Time
tF(1)
SDA and SCL Fall Time
tSU:STO Stop Condition Setup Time
0.6
tDH Data Out Hold Time
50
POWER UP TIMING (1)
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Min
tPUR
Power-up to Read Operation
tPUW
Power-up to Write Operation
Typ Max Units
400 kHz
50 ns
0.9 µs
µs
µs
µs
µs
µs
ns
ns
0.3 µs
300 ns
µs
ns
Typ Max Units
1
ms
1
ms
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
Doc. No. MD-2113 Rev. L
4
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
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