CAT5241 Datasheet, PDF (4/16 Pages) Catalyst Semiconductor – Quad Digitally Programmable Potentiometers (DPP™) with 64 Taps and 2-wire Interface

CAT5241
D.C. OPERATING CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol
I_CC
ISB
ILI
I_LO
V_IL
VIH
V_OL1
Parameter
Test Conditions
Min
Power Supply Current
f_SCL = 400kHz
Standby Current (VCC = 5.0V) VIN = GND or VCC; SDA Open
Input Leakage Current
VIN = GND to VCC
Output Leakage Current
V_OUT = GND to V_CC
Input Low Voltage
-1
Input High Voltage
VCC x 0.7
Output Low Voltage (V_CC = 3.0V)
I_OL = 3 mA
Typ Max Units
1
mA
1
µA
10
µA
10
µA
V_CC x 0.3 V
VCC + 1.0 V
0.4
V
CAPACITANCE
T_A = 25°C, f = 1.0 MHz, V_CC = 5V
Symbol Test
CI/O(1) Input/Output Capacitance (SDA)
C_IN(1) Input Capacitance (A0, A1, A2, A3, SCL)
Conditions Min Typ
Max Units
VI/O = 0V
8
pF
V_IN = 0V
6
pF
A.C. CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
f_SCL
Clock Frequency
T_I(1)
Noise Suppression Time Constant at SCL, SDA Inputs
t_AA
tBUF(1)
SLC Low to SDA Data Out and ACK Out
Time the Bus Must be Free Before a New
Transmission Can Start
t_HD:STA Start Condition Hold Time
t_LOW
Clock Low Period
t_HIGH
Clock High Period
t_SU:STA Start Condition SetupTime (For a Repeated Start Condition)
t_HD:DAT Data in Hold Time
t_SU:DAT
t_R(1)
t_F(1)
Data in Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
t_SU:STO Stop Condition Setup Time
t_DH
Data Out Hold Time
Min Typ
1.2
0.6
1.2
0.6
0.6
0
100
0.6
50
Max
400
50
0.9
Units
kHz
ns
µs
µs
µs
µs
µs
µs
ns
ns
0.3
µs
300
ns
µs
ns
POWER UP TIMING ⁽¹⁾
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Min
t_PUR Power-up to Read Operation
tPUW Power-up to Write Operation
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
Typ
Max
1
1
Units
ms
ms
Document No. 2011, Rev. J
4