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ISL22317TFRTZ датащи(PDF) 6 Page - Intersil Corporation |
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ISL22317TFRTZ датащи(HTML) 6 Page - Intersil Corporation |
6 / 15 page 6 FN6912.0 May 26, 2009 SDA vs SCL Timing tF (Note 16) SDA and SCL Fall Time From 70% to 30% of VCC 20 + 0.1*Cb 250 ns Cb (Note 16) Capacitive Loading of SDA or SCL Total on-chip and off-chip 10 400 pF Rpu (Note 16) SDA and SCL Bus Pull-up Resistor Off-chip Maximum is determined by tR and tF For Cb = 400pF, max is about 2k Ω ~ 2.5kΩ For Cb = 40pF, max is about 15k Ω ~ 20kΩ 1k Ω tSU:A A1 Setup Time Before START condition 600 ns tHD:A A1 Hold Time After STOP condition 600 ns 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. ZSERROR = V(RW)0/LSB. 7. FSerror = [V(RW)127 – VCC]/LSB. 8. DNL = [V(RW)i – V(RW)i-1]/LSB-1, for i = 1 to 127, where i is the DCP register setting. 9. INL = [V(RW)i – i • LSB – V(RW)0]/LSB for i = 1 to 127 10. for i = 15 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. 11. 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. 12. ROFFSET = RW0/MI, when measuring between RW and RL. 13. RDNL = (RWi – RWi-1)/MI -1, for i = 1 to 127. 14. RINL = [RWi – (MI • i) – RW0]/MI, for i = 1 to 127. 15. for i = 15 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. 16. Limits should be considered typical and are not production tested. 17. In rheostat mode, if a current is injected into the RW terminal, the magnitude of the current should be such that the developed potential difference between RW and RL terminals is at least 300mV, even at the minimum wiper setting. This ensures that the recommended operating condition of V(RW) ≥ V(RL) + 0.3V is satisfied and the part operates in its most accurate resistance. Minimum and Maximum wiper setting can be calculated as follow, MIN code = (0.3V*127)/(Iw*Rtotal), Max code = [(VCC - 0.3V)*127]/(IW*RTOTAL). 18. tWC is the time from a valid STOP condition at the end of a Write sequence of I 2C serial interface, to the end of the self-timed internal non-volatile write cycle. 19. 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. Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER TEST CONDITIONS MIN (Note 19) TYP (Note 4) MAX (Note 19) UNIT TC V Max V RW () i () Min V RW () i () – Max V RW () i () Min V RW () i () + [] 2 ⁄ ---------------------------------------------------------------------------------------------- 106 165°C ----------------- × = + TC R Max Ri () Min Ri () – [] Max Ri () Min Ri () + [] 2 ⁄ ---------------------------------------------------------------- 10 6 165°C ----------------- × = + tSU:STO tDH tHIGH tSU:STA tHD:STA tHD:DAT tSU:DAT SCL SDA (INPUT TIMING) SDA (OUTPUT TIMING) tF tLOW tBUF tAA tR tsp ISL22317 |
Аналогичный номер детали - ISL22317TFRTZ |
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Аналогичное описание - ISL22317TFRTZ |
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