CAT5409 Datasheet, PDF (4/17 Pages) Catalyst Semiconductor – Quad Digitally Programmable Potentiometers (DPPTM) with 64 Taps and 2-wire Interface

CAT5409
D.C. OPERATING CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol
ICC
I_SB
I_LI
I_LO
VIL
V_IH
V_OL1
Parameter
Test Conditions
Min
Power Supply Current
fSCL = 400kHz
Standby Current (V_CC = 5.0V) V_IN = GND or V_CC; SDA Open
Input Leakage Current
V_IN = GND to V_CC
Output Leakage Current
V_OUT = GND to V_CC
Input Low Voltage
-1
Input High Voltage
V_CC 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
VCC x 0.3 V
V_CC + 1.0 V
0.4
V
CAPACITANCE
T_A = 25°C, f = 1.0 MHz, V_CC = 5V
Symbol Test
Conditions Min Typ
Max Units
C_I/O(1) Input/Output Capacitance (SDA)
V_I/O = 0V
8
pF
C_IN(1) Input Capacitance (A0, A1, A2, A3, SCL, WP)
V_IN = 0V
6
pF
A.C. CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Min Typ
fSCL
Clock Frequency
TI(1)
Noise Suppression Time Constant at SCL, SDA Inputs
tAA
tBUF(1)
SLC Low to SDA Data Out and ACK Out
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 SetupTime (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 Typ
tPUR Power-up to Read Operation
t_PUW Power-up to Write Operation
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
Max
400
50
0.9
0.3
300
Units
kHz
ns
µs
µs
µs
µs
µs
µs
ns
ns
µs
ns
µs
ns
Max
1
1
Units
ms
ms
Document No. 2010, Rev. I
4