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ISL22416 Datasheet, PDF (5/14 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer XDCP
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ISL22416
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
TYP
MIN
(Note 4) MAX
UNIT
tD
Power-up Delay
VCC above VPOR, to DCP Initial Value
Register recall completed, and SPI Interface
in standby state
3
ms
EEPROM SPECIFICATION
EEPROM Endurance
1,000,000
Cycles
EEPROM Retention
Temperature T ≤ +55°C
50
Years
tWC
Non-volatile Write Cycle Time
(Note 16)
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
VOL
Rpu
(Note 17)
Cpin
(Note 18)
SDO Output Buffer LOW Voltage
SDO Pull-up Resistor Off-chip
SHDN, SCK, SDI, SDO and CS Pin
Capacitance
IOL = 4mA
Maximum is determined by tRO and tFO with
maximum bus load Cb = 30pF, fSCK = 5MHz
0.05*
VCC
0
V
0.4
V
2
kΩ
10
pF
fSCK
SPI Frequency
5
MHz
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
2
µs
NOTES:
4. Typical values are for TA = +25°C and 3.3V supply voltage.
5. 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.
6. ZS error = V(RW)0/LSB.
7. FS error = [V(RW)127 – VCC]/LSB.
5
FN6227.2
September 9, 2009
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