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參數(shù)資料
| 型號： | ISL95810WIRT8Z-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Single Digitally Controlled Potentiometer (XDCP) |
| 中文描述： | 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO8 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, PLASTIC, TDFN-8 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 1160K |
| 代理商： | ISL95810WIRT8Z-T |
5
FN8090.1
October 7, 2005
SDA vs SCL Timing
WP Pin Timing
NOTES:
1. Typical values are for T
A
= 25°C and 3.3V supply voltage.
2. LSB: [V(RW)
255
– V(RW)
0
]
/
255. V(RW)
255
and V(RW)
0
are V(RW) for the DCP register set to FF hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
3. ZS error = V(RW)
0
/
LSB.
4. FS error = [V(RW)
255
– V
CC
]
/
LSB.
5. DNL = [V(RW)
i
– V(RW)
i-1
]
/
LSB-1, for i = 1 to 255. i is the DCP register setting.
6. INL = [V(RW)
i
– (i LSB – V(RW)
0
)]/LSB for i = 1 to 255.
Max V RW
)
Min V RW
–
Max V RW
)
i
Min V RW
+
7.
for i = 16 to 240 decimal, T = -40°C to 85°C. Max( ) is the maximum value of the wiper
voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
8. MI =
|
R
255
– R
0
|
/
255. R
255
and R
0
are the measured resistances for the DCP register set to FF hex and 00 hex respectively.
Roffset = R
0
/
MI, when measuring between RW and RL.
9. Roffset = R
255
/
MI, when measuring between RW and RH.
10. RDNL = (R
i
– R
i-1
)
/
MI, for i = 32 to 255.
11. RINL = [R
i
– (MI i) – R
0
]
/
MI, for i = 32 to 255.
6
125°C
12.
for i = 32 to 255, T = -40°C to 85°C. Max( ) is the maximum value of the resistance and Min ( ) is the
minimum value of the resistance over the temperature range.
13. This parameter is not 100% tested.
t
F
(Note 13)
SDA and SCL Fall Time
From 70% to 30% of V
CC
20 +
0.1 * Cb
250
ns
Cb
(Note 13)
Rpu
(Note 13)
Capacitive Loading of SDA or SCL Total on-chip and off-chip
10
400
pF
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
t
WP
(Notes 13, 14) Non-Volatile Write Cycle Time
t
SU:WP
WP Setup Time
t
HD:WP
WP Hold Time
12
20
ms
Before START condition
600
ns
After STOP condition
600
ns
Operating Specifications
Over the recommended operating conditions unless otherwise specified.
(Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
(Note 1)
MAX
UNITS
t
SU:STO
t
DH
t
HIGH
t
SU:STA
t
HD:STA
t
HD:DAT
t
SU:DAT
SCL
SDA
(INPUT TIMING)
SDA
(OUTPUT TIMING)
t
F
t
LOW
t
BUF
t
AA
t
R
t
HD:WP
SCL
SDA IN
WP
t
SU:WP
CLK 1
START
STOP
t
HD:STO
t
HD:STO:NV
TC
V
)
)
)
i
[
]
2
---------------------------------------------------------------------------------------------
6
125°C
----------------
×
=
TC
R
Max Ri
+
Min Ri
]
)
)
[
]
2
------------------------------–
----------------
×
=
ISL95810
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