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ISL23418UFRUZ-T7A Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL23418UFRUZ-T7A Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 20 page ISL23418 7 FN7901.0 August 3, 2011 Serial Interface Specification For SCK, SDI, SDO, CS, unless otherwise noted. SYMBOL PARAMETER TEST CONDITIONS MIN (Note 20) TYP (Note 8) MAX (Note 20) UNITS VIL Input LOW Voltage -0.3 0.3 x VLOGIC V VIH Input HIGH Voltage 0.7 x VLOGIC VLOGIC+ 0.3 V Hysteresis SDI and SCK Input Buffer Hysteresis VLOGIC > 2V 0.05 x VLOGIC V VLOGIC < 2V 0.1 x VLOGIC VOL SDO Output Buffer LOW Voltage IOL = 3mA, VLOGIC > 2V 0 0.4 V IOL = 1.5mA, VLOGIC < 2V 0.2 x VLOGIC V Rpu SDO Pull-up Resistor Off-chip Maximum is determined by tRO and tFO with maximum bus load Cb = 30pF, fSCK =5MHz 1.5 k Ω Cpin SCK, SDO, SDI, CS Pin Capacitance 10 pF fSCK SCK Frequency VLOGIC = 1.7V to 5.5V 5 MHz VLOGIC = 1.2V to 1.6V 1 MHz tCYC SPI Clock Cycle Time VLOGIC ≥ 1.7V 200 ns tWH SPI Clock High Time VLOGIC ≥ 1.7V 100 ns tWL SPI Clock Low Time VLOGIC ≥ 1.7V 100 ns tLEAD Lead Time VLOGIC ≥ 1.7V 250 ns tLAG Lag Time VLOGIC ≥ 1.7V 250 ns tSU SDI, SCK and CS Input Setup Time VLOGIC ≥ 1.7V 50 ns tH SDI, SCK and CS Input Hold Time VLOGIC ≥ 1.7V 50 ns tRI SDI, SCK and CS Input Rise Time VLOGIC ≥ 1.7V 10 ns tFI SDI, SCK and CS Input Fall Time VLOGIC ≥ 1.7V 10 20 ns tDIS SDO Output Disable Time VLOGIC ≥ 1.7V 0 100 ns tSO SDO Output Setup Time VLOGIC ≥ 1.7V 50 ns tV SDO Output Valid Time VLOGIC ≥ 1.7V 150 ns tHO SDO Output Hold Time VLOGIC ≥ 1.7V 0 ns tRO SDO Output Rise Time Rpu = 1.5k, Cbus = 30pF 60 ns tFO SDO Output Fall Time Rpu = 1.5k, Cbus = 30pF 60 ns tCS CS Deselect Time 2 µs NOTES: 8. Typical values are for TA = +25°C and 3.3V supply voltages. 9. 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. 10. ZS error = V(RW)0/LSB. 11. FS error = [V(RW)127 – VCC]/LSB. 12. DNL = [V(RW)i – V(RW)i-1]/LSB-1, for i = 1 to 127. i is the DCP register setting. 13. INL = [V(RW)i – i • LSB – V(RW)0]/LSB for i = 1 to 127 14. for i = 16 to 127 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. 15. MI = |RW127 – RW0|/127. MI is a minimum increment. RW127 and RW0 are the measured resistances for the DCP register set to 7F hex and 00 hex, respectively. 16. Roffset = RW0/MI, when measuring between RW and RL. Roffset = RW127/MI, when measuring between RW and RH. 17. RDNL = (RWi – RWi-1)/MI -1, for i = 16 to 127. 18. RINL = [RWi – (MI • i) – RW0]/MI, for i = 16 to 127. 19. for i = 16 to 127, 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. 20. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design. TCV Max V RW ()i () Min V RW ()i () – V RWi +25°C () () ------------------------------------------------------------------------------ 106 +165°C --------------------- × = TCR Max Ri () Min Ri () – [] Ri +25°C () ------------------------------------------------------- 10 6 +165°C --------------------- × = |
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