參數(shù)資料
型號(hào): ISL90843WIU1027Z
廠商: INTERSIL CORP
元件分類: 數(shù)字電位計(jì)
英文描述: Quad Digital Controlled Potentiometers (XDCP⑩)
中文描述: QUAD 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
封裝: ROHS COMPLIANT, MO-187BA, MSOP-10
文件頁數(shù): 4/10頁
文件大小: 755K
代理商: ISL90843WIU1027Z
4
FN8095.2
March 29, 2006
VccRamp
V
CC
Ramp Rate
0.2
V/ms
t
D
(Note 15) Power-Up Delay
V
CC
above Vpor, to DCP Initial Value Register recall
completed, and I
2
C Interface in Standby State.
3
ms
SERIAL INTERFACE SPECS
V
IL
A1, A0, SDA, and SCL Input
Buffer LOW Voltage
-0.3
0.3*V
CC
V
V
IH
A1, A0, SDA, and SCL Input
Buffer HIGH Voltage
0.7*V
CC
V
CC
+0.3
V
Hysteresis
(Note 15)
SDA and SCL Input Buffer
Hysteresis
0.05*
V
CC
V
V
OL
(Note 15)
SDA Output Buffer LOW Voltage,
Sinking 4mA
0
0.4
V
Cpin
(Note 15)
A1, A0, SDA, and SCL Pin
Capacitance
10
pF
f
SCL
t
IN
SCL Frequency
400
kHz
(Note 15)
Pulse Width Suppression Time at
SDA and SCL Inputs
Any pulse narrower than the max spec is suppressed.
50
ns
t
AA
(Note 15)
SCL Falling Edge to SDA Output
Data Valid
SCL falling edge crossing 30% of V
CC
, until SDA exits
the 30% to 70% of V
CC
window.
900
ns
t
BUF
(Note 15)
Time the Bus Must be Free Before
the Start of a New Transmission
SDA crossing 70% of V
CC
during a STOP condition, to
SDA crossing 70% of V
CC
during the following START
condition.
1300
ns
t
LOW
Clock LOW Time
Measured at the 30% of V
CC
crossing.
1300
ns
t
HIGH
Clock HIGH Time
Measured at the 70% of V
CC
crossing.
600
ns
t
SU:STA
START Condition Setup Time
SCL rising edge to SDA falling edge. Both crossing 70%
of V
CC
.
600
ns
t
HD:STA
START Condition Hold Time
From SDA falling edge crossing 30% of V
CC
to SCL
falling edge crossing 70% of V
CC
.
600
ns
t
SU:DAT
Input Data Setup Time
From SDA exiting the 30% to 70% of V
CC
window, to
SCL rising edge crossing 30% of V
CC
.
100
ns
t
HD:DAT
Input Data Hold Time
From SCL rising edge crossing 70% of V
CC
to SDA
entering the 30% to 70% of V
CC
window.
0
ns
t
SU:STO
STOP Condition Setup Time
From SCL rising edge crossing 70% of V
CC
, to SDA
rising edge crossing 30% of V
CC
.
600
ns
t
HD:STO
STOP Condition Hold Time for
Read, or Volatile Only Write
From SDA rising edge to SCL falling edge. Both crossing
70% of V
CC
.
600
ns
t
DH
(Note 15)
Output Data Hold Time
From SCL falling edge crossing 30% of V
CC
, until SDA
enters the 30% to 70% of V
CC
window.
0
ns
t
R
(Note 15)
SDA and SCL Rise Time
From 30% to 70% of V
CC
20 +
0.1 * Cb
250
ns
t
F
(Note 15)
SDA and SCL Fall Time
From 70% to 30% of V
CC
20 +
0.1 * Cb
250
ns
Cb
(Note 15)
Capacitive Loading of SDA or SCL Total on-chip and off-chip
10
400
pF
Rpu
(Note 15)
SDA and SCL Bus Pull-Up
Resistor Off-Chip
Maximum is determined by t
R
and t
F
.
For Cb = 400pF, max is about 2~2.5k
.
For Cb = 40pF, max is about 15~20k
1
k
Operating Specifications
Over the recommended operating conditions unless otherwise specified.
(Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
(NOTE 1)
MAX
UNITS
ISL90843
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