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ISL12026 数据表(PDF) 5 Page - Intersil Corporation |
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ISL12026 数据表(HTML) 5 Page - Intersil Corporation |
5 / 24 page 5 FN8231.8 October 28, 2008 Timing Diagrams Bus Timing tSU:STO STOP Condition Set-up Time From SCL rising edge crossing 70% of VDD, to SDA rising edge crossing 30% of VDD. 600 ns tHD:STO STOP Condition Hold Time for Read or Volatile Only Write From SDA rising edge to SCL falling edge. Both crossing 70% of VDD. 600 ns tDH Output Data Hold Time From SCL falling edge crossing 30% of VDD, until SDA enters the 30% to 70% of VDD window. 0ns Cpin SDA and SCL Pin Capacitance 10 pF 13 tWC Non-volatile Write Cycle Time 12 20 ms 10 tR SDA and SCL Rise Time From 30% to 70% of VDD 20 + 0.1xCb 300 ns 11, 13 tF SDA and SCL Fall Time From 70% to 30% of VDD 20 +0.1xCb 300 ns 11, 13 Cb Capacitive Loading of SDA or SCL Total on-chip and off-chip 10 400 pF 11, 13 RPU 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 11, 13 NOTES: 3. IRQ/FOUT Inactive. 4. VIL = VDD x 0.1, VIH = VDD x 0.9, fSCL = 400kHz 5. VDD > VBAT +VBATHYS 6. Bit BSW = 0 (Standard Mode), ATR = 00h, VBAT ≥1.8V 7. Specified at +25°C. 8. In order to ensure proper timekeeping, the VDD SR- specification must be followed. 9. Parameter is not 100% tested. 10. tWC is the minimum cycle time to be allowed for any non-volatile Write by the user, it is the time from valid STOP condition at the end of Write sequence of a serial interface Write operation, to the end of the self-timed internal non-volatile write cycle. 11. These are I2C specific parameters and are not directly tested, however they are used during device testing to validate device specification. 12. 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. 13. Limits should be considered typical and are not production tested. AC Electrical Specifications (Continued) SYMBOL PARAMETER TEST CONDITIONS MIN (Note 12) TYP MAX (Note 12) UNITS NOTES tSU:STO tDH tHIGH tSU:STA tHD:STA tHD:DAT tSU:DAT SCL SDA (INPUT TIMING) SDA (OUTPUT TIMING) tF tLOW tBUF tAA tR tHD:STO ISL12026, ISL12026A |
类似零件编号 - ISL12026 |
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类似说明 - ISL12026 |
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