CAT5270 Datasheet, PDF (4/10 Pages) ON Semiconductor – Dual Digitally Programmable Potentiometers (DPP) with 256 Taps & I2C Compatible Interface

CAT5270
Table 5. D.C. OPERATING CHARACTERISTICS (V_CC = +2.5 V to +5.5 V, unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min
I_CC
I_SB
I_LI
I_LO
V_IL
V_IH
V_OL1
Power Supply Current
Standby Current (V_CC = 5.0 V)
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage (V_CC = 2.5 V)
f_SCL = 400 kHz, SDA = Open
V_CC = 5.5 V, Inputs = GND
V_IN = GND or V_CC, SDA = Open
V_IN = GND to V_CC
V_OUT = GND to V_CC
I_OL = 3 mA
−1
V_CC x 0.7
Max
1
5
10
10
V_CC x 0.3
V_CC + 1.0
0.4
Units
mA
mA
mA
mA
V
V
V
Table 6. CAPACITANCE (T_A = 25°C, f = 1.0 MHz, V_CC = 5 V)
Symbol
Test
C_I/O (Note 8)
C_IN (Note 8)
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, A2, A3, SCL, WP)
Conditions
V_I/O = 0 V
V_IN = 0 V
Max
Units
8
pF
6
pF
Table 7. A.C. CHARACTERISTICS
Symbol
f_SCL
T_I (Note 8)
t_AA
t_BUF (Note 8)
t_HD:STA
t_LOW
t_HIGH
t_SU:STA
t_HD:DAT
t_SU:DAT
t_R (Note 8)
t_F (Note 8)
t_SU:STO
t_DH
Parameter
Clock Frequency
Noise Suppression Time Constant at SCL, SDA Inputs
SLC Low to SDA Data Out and ACK Out
Time the bus must be free before a new transmission can start
Start Condition Hold Time
Clock Low Period
Clock High Period
Start Condition Setup Time (for a Repeated Start Condition)
Data in Hold Time
Data in Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Condition Setup Time
Data Out Hold Time
2.5 V – 5.5 V
Min
Max
400
200
1
1.2
0.6
1.2
0.6
0.6
0
50
0.3
300
0.6
100
Units
kHz
ns
ms
ms
ms
ms
ms
ms
ns
ns
ms
ns
ms
ns
Table 8. POWER UP TIMING (Notes 8 and 9)
Symbol
t_PUR
t_PUW
Power−up to Read Operation
Power−up to Write Operation
Parameter
Max
Units
1
ms
1
ms
Table 9. WIPER TIMING
Symbol
Parameter
Max
t_WRPO
Wiper Response Time After Power Supply Stable
10
t_WRL
Wiper Response Time After Instruction Issued
10
8. This parameter is tested initially and after a design or process change that affects the parameter.
9. t_PUR and t_PUW are delays required from the time V_CC is stable until the specified operation can be initiated.
Units
ms
ms
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