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參數(shù)資料
| 型號(hào)： | ISL22449UFV14Z |
| 廠商： | Intersil |
| 文件頁(yè)數(shù)： | 9/13頁(yè) |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 128TP LN LP 14-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 系列： | XDCP™ |
| 接片： | 128 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 4 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 ±80 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | 4 線 SPI（芯片選擇） |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-TSSOP |
| 包裝： | 管件 |
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5
FN6333.3
July 17, 2009
VIH
SHDN, SCK, SDI, and CS input buffer
HIGH voltage
0.7*VCC
VCC+0.3
V
Hysteresis
SHDN, SCK, SDI, and CS input buffer
hysteresis
0.05*
VCC
V
VOL
SDO output buffer LOW voltage
IOL = 4mA
0
0.4
V
Rpu
(Note 12)
SDO pull-up resistor off-chip
Maximum is determined by tRO and tFO with
maximum bus load Cbus = 30pF, fSCK =
5MHz
2k
Ω
Cpin
(Note 13)
SHDN, SCK, SDI, SDO and CS pin
capacitance
10
pF
fSCK
SPI frequency
5MHz
tCYC
SPI clock cycle time
200
ns
tWH
SPI clock high time
100
ns
tWL
SPI clock low time
100
ns
tLEAD
Lead time
250
ns
tLAG
Lag time
250
ns
tSU
SDI, SCK and CS input setup time
50
ns
tH
SDI, SCK and CS input hold time
50
ns
tRI
SDI, SCK and CS input rise time
10
ns
tFI
SDI, SCK and CS input fall time
10
20
ns
tDIS
SDO output Disable time
0
100
ns
tV
SDO output valid time
350
ns
tHO
SDO output hold time
0
ns
tRO
SDO output rise time
Rpu = 2k, Cbus = 30pF
60
ns
tFO
SDO output fall time
Rpu = 2k, Cbus = 30pF
60
ns
tCS
CS deselect time
2s
tWRT
Wiper Response Time after SPI write
to WR register
1.5
s
NOTES:
3. Typical values are for TA = +25°C and 3.3V supply voltage.
4. LSB: [V(RW)127 – V(RW)0]/127. V(RW)127 and V(RW)0 are V(RW) 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.
5. ZS error = V(RW)0/LSB.
6. FS error = [V(RW)127 – VCC]/LSB.
7. DNL = [V(RW)i – V(RW)i-1]/LSB-1, for i = 1 to 127. i is the DCP register setting.
8. INL = [V(RW)i – i LSB – V(RW)]/LSB for i = 1 to 127
9. VMATCH = [V(RWx)i – V(RWy)i]/LSB, for i = 1 to 127, x = 0 to 3 and y = 0 to 3.
10.
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.
11. tWC is the time from the end of a Write sequence of SPI serial interface, to the end of the self-timed internal non-volatile write cycle.
12. Rpu is specified for the highest data rate transfer for the device. Higher value pullup can be used at lower data rates.
13. This parameter is not 100% tested.
Operating Specifications Over the recommended operating conditions unless otherwise specified. Parameters with MIN and/or MAX
limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
(Note 3)
MAX
UNIT
TC
V
Max V RW
()
i
() Min V RW
()
i
()
–
Max V RW
()
i
() Min V RW
()
i
()
+
[] 2
----------------------------------------------------------------------------------------------
106
165°C
-----------------
×
=
ISL22449
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