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ISL22446UFRT20Z Scheda tecnica(PDF) 5 Page - Intersil Corporation

Il numero della parte ISL22446UFRT20Z
Spiegazioni elettronici  Quad Digitally Controlled Potentiometer XDCP
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Produttore elettronici  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL22446UFRT20Z Scheda tecnica(HTML) 5 Page - Intersil Corporation

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5
FN6181.2
September 9, 2009
ILkgDig
Leakage Current at Pins SHDN, SCK,
SDI, SDO and CS
Voltage at pin from GND to VCC
-1
1
µA
tWRT
(Note 21)
Wiper Response Time after SPI Write
to WR Register
1.5
µs
tShdnRec
(Note 21)
DCP Recall Time from Shutdown
Mode
From rising edge of SHDN signal to wiper
stored position and RH connection
1.5
µs
SCK rising edge of last bit of ACR data byte
to wiper stored position and RH connection
1.5
µs
Vpor
Power-on Recall Voltage
Minimum VCC at which memory recall occurs
2.0
2.6
V
VccRamp
VCC Ramp Rate
0.2
V/ms
tD
Power-up Delay
VCC above Vpor, to DCP Initial Value
Register recall completed, and SPI Interface
in standby state
3ms
EEPROM SPECIFICATION
EEPROM Endurance
1,000,000
Cycles
EEPROM Retention
Temperature T < +55°C
50
Years
tWC
(Note 19)
Non-volatile Write Cycle Time
12
20
ms
SERIAL INTERFACE SPECIFICATIONS
VIL
SHDN, SCK, SDI, and CS Input Buffer
LOW Voltage
-0.3
0.3*VCC
V
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 20)
SDO pull-up resistor off-chip
Maximum is determined by tRO and tFO with
maximum bus load Cb = 30pF, fSCK = 5MHz
2k
Ω
Cpin
(Note 21)
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
Operating Specifications Over the recommended operating conditions, unless otherwise specified. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 22)
TYP
(Note 5)
MAX
(Note 22)
UNIT
ISL22446


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