參數(shù)資料
型號: ISL22326
廠商: Intersil Corporation
英文描述: Low Noise, Low Power, I2C Bus, 128 Taps(低噪聲,低功率,I2C總線, 128抽頭電位器)
中文描述: 低噪聲,低功耗,I2C總線,128絲錐(低噪聲,低功率和I2C總線,128抽頭電位器)
文件頁數(shù): 6/13頁
文件大?。?/td> 488K
代理商: ISL22326
6
FN6176.0
July 17, 2006
SDA vs SCL Timing
A0, A1, and A2 Pin Timing
t
SU:A
t
HD:A
A2, A1 and A0 Setup Time
Before START condition
600
ns
A2, A1 and A0 Hold Time
After STOP condition
600
ns
NOTES:
5. Typical values are for T
A
= +25°C and 3.3V supply voltage
6. LSB: [V(R
W
)
127
– V(R
W
)
0
]/127. V(R
W
)
127
and V(R
W
)
0
are V(R
W
) for the DCP register set to 7F hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
7. ZS error = V(RW)
0
/LSB.
8. FS error = [V(RW)
127
– V
CC
]/LSB.
9. DNL = [V(RW)
i
– V(RW)
i-1
]/LSB-1, for i = 1 to 127. i is the DCP register setting.
10. INL = [V(RW)
i
– i LSB – V(RW)
0
]/LSB for i = 1 to 127.
11. V
MATCH
= [V(RWx)
i
– V(RWy)
i
]/LSB, for i = 1 to 127, x = 0 to 1 and y = 0 to 1.
Max V RW
(
)
Max V RW
)
i
12.
for i = 16 to 112 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper
voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
13. MI =
|
RW
127
– RW
0
|
/127. MI is a minimum increment. RW
127
and RW
0
are the measured resistances for the DCP register set to 7F hex and
00 hex respectively.
14. Roffset = RW
0
/MI, when measuring between RW and RL.
Roffset = RW
127
/MI, when measuring between RW and RH.
15. RDNL = (RW
i
– RW
i-1
)/MI -1, for i = 16 to 127.
16. RINL = [RW
i
– (MI i) – RW
0
]/MI, for i = 16 to 127.
17. R
MATCH
= (RW
i,x
– RW
i,y
)
/MI, for i = 1 to 127, x = 0 to 1 and y = 0 to 1.
6
165°C
18.
for i = 16 to 112, T = -40°C to +125°C. Max( ) is the maximum value of the resistance and Min ( ) is
the minimum value of the resistance over the temperature range.
19. This parameter is not 100% tested.
20. t
WC
is the time from a valid STOP condition at the end of a Write sequence of I
2
C serial interface, to the end of the self-timed internal non-
volatile write cycle.
Operating Specifications
Over the recommended operating conditions unless otherwise specified.
(Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
(NOTE 5)
MAX
UNIT
TC
V
(
(
(
)
)
Min V RW
)
i
+
[
]
2
---------------------------------------------–
6
165°C
----------------
×
=
TC
R
Max Ri
(
+
Min Ri
(
(
]
(
)
)
[
]
2
------------------------------–
----------------
×
=
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
sp
t
HD:STO
t
HD:A
SCL
SDA
A0, A1, OR A2
t
SU:A
CLK 1
START
STOP
ISL22326
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