ISL90843 Intersil Corporation, ISL90843 Datasheet - Page 4

• Manufacturer Part Number: ISL90843
• Description: Quad Digital Controlled Potentiometers
• Manufacturer: Intersil Corporation

Operating Specifications
SERIAL INTERFACE SPECS
t
D
Hysteresis
VccRamp V
SYMBOL
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
(Note 15)
t
t
t
t
t
t
HD:DAT
SU:STO
HD:STO
(Note 15) Power-Up Delay
SU:STA
HD:STA
SU:DAT
t
t
Cpin
f
t
HIGH
V
Rpu
LOW
V
BUF
t
V
SCL
t
Cb
t
AA
DH
t
t
IN
OL
R
IH
F
IL
A1, A0, SDA, and SCL Input
Buffer LOW Voltage
A1, A0, SDA, and SCL Input
Buffer HIGH Voltage
SDA and SCL Input Buffer
Hysteresis
SDA Output Buffer LOW Voltage,
Sinking 4mA
A1, A0, SDA, and SCL Pin
Capacitance
SCL Frequency
Pulse Width Suppression Time at
SDA and SCL Inputs
SCL Falling Edge to SDA Output
Data Valid
Time the Bus Must be Free Before
the Start of a New Transmission
Clock LOW Time
Clock HIGH Time
START Condition Setup Time
START Condition Hold Time
Input Data Setup Time
Input Data Hold Time
STOP Condition Setup Time
STOP Condition Hold Time for
Read, or Volatile Only Write
Output Data Hold Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Capacitive Loading of SDA or SCL Total on-chip and off-chip
SDA and SCL Bus Pull-Up
Resistor Off-Chip
CC
Ramp Rate
PARAMETER
4
Over the recommended operating conditions unless otherwise specified. (Continued)
V
completed, and I
Any pulse narrower than the max spec is suppressed.
SCL falling edge crossing 30% of V
the 30% to 70% of V
SDA crossing 70% of V
SDA crossing 70% of V
condition.
Measured at the 30% of V
Measured at the 70% of V
SCL rising edge to SDA falling edge. Both crossing 70%
of V
From SDA falling edge crossing 30% of V
falling edge crossing 70% of V
From SDA exiting the 30% to 70% of V
SCL rising edge crossing 30% of V
From SCL rising edge crossing 70% of V
entering the 30% to 70% of V
From SCL rising edge crossing 70% of V
rising edge crossing 30% of V
From SDA rising edge to SCL falling edge. Both crossing
70% of V
From SCL falling edge crossing 30% of V
enters the 30% to 70% of V
From 30% to 70% of V
From 70% to 30% of V
Maximum is determined by t
For Cb = 400pF, max is about 2~2.5kΩ.
For Cb = 40pF, max is about 15~20kΩ
CC
CC
above Vpor, to DCP Initial Value Register recall
.
CC
.
ISL90843
2
TEST CONDITIONS
C Interface in Standby State.
CC
CC
CC
CC
CC
window.
CC
CC
during a STOP condition, to
during the following START
CC
R
CC
crossing.
crossing.
CC
CC
and t
window.
.
window.
.
CC
CC
F
.
.
, until SDA exits
CC
CC
CC
CC
CC
window, to
, to SDA
, until SDA
to SDA
to SCL
0.7*V
0.1 * Cb
0.1 * Cb
0.05*
1300
1300
V
20 +
20 +
MIN
-0.3
600
600
600
100
600
600
0.2
10
CC
0
0
0
1
CC
(NOTE 1)
TYP
V
0.3*V
CC
MAX
400
900
250
250
400
0.4
10
50
3
+0.3
CC
March 29, 2006
UNITS
FN8095.2
V/ms
kHz
ms
kΩ
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V