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LM95231BIMM-1 Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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LM95231BIMM-1 Datasheet(HTML) 5 Page - National Semiconductor (TI) |
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5 / 20 page  Temperature-to-Digital Converter Characteristics (Continued) Unless otherwise noted, these specifications apply for V DD=+3.0Vdc to 3.6Vdc. Boldface limits apply for TA =TJ = T MIN ≤T A ≤T MAX; all other limits TA=TJ=+25˚C, unless otherwise noted. TJ is the junction temperature of the LM95231. TD is the junction temperature of the remote thermal diode. Parameter Conditions Typical LM95231 BIMM LM95231 CIMM Units (Note 6) Limits (Note 7) Limits (Note 7) (Limit) Diode Source Current (V D+ −VD−) = + 0.65V; high-level 176 300 300 µA (max) 100 100 µA (min) Low-level 11 µA Power-On Reset Threshold Measure on V DD input, falling edge 2.7 1.8 2.7 1.8 V (max) V (min) Logic Electrical Characteristics Digital DC Characteristics Unless otherwise noted, these specifications apply for V DD=+3.0 to 3.6 Vdc. Boldface limits apply for TA =TJ =TMIN to T MAX; all other limits TA=TJ=+25˚C, unless otherwise noted. Symbol Parameter Conditions Typical Limits Units (Note 6) (Note 7) (Limit) SMBDAT, SMBCLK INPUTS V IN(1) Logical “1” Input Voltage 2.1 V (min) V IN(0) Logical “0”Input Voltage 0.8 V (max) V IN(HYST) SMBDAT and SMBCLK Digital Input Hysteresis 400 mV I IN(1) Logical “1” Input Current V IN =VDD 0.005 ±10 µA (max) I IN(0) Logical “0” Input Current V IN = 0 V −0.005 ±10 µA (max) C IN Input Capacitance 5 pF SMBDAT OUTPUT I OH High Level Output Current V OH =VDD 10 µA (max) V OL SMBus Low Level Output Voltage I OL = 4mA I OL = 6mA 0.4 0.6 V (max) SMBus Digital Switching Characteristics Unless otherwise noted, these specifications apply for V DD=+3.0 Vdc to +3.6 Vdc, CL (load capacitance) on output lines = 80 pF. Boldface limits apply for T A =TJ =TMIN to TMAX; all other limits TA =TJ = +25˚C, unless otherwise noted. The switching characteristics of the LM95231 fully meet or exceed the published specifications of the SMBus version 2.0. The following pa- rameters are the timing relationships between SMBCLK and SMBDAT signals related to the LM95231. They adhere to but are not necessarily the SMBus bus specifications. Symbol Parameter Conditions Typical Limits Units (Note 6) (Note 7) (Limit) f SMB SMBus Clock Frequency 100 10 kHz (max) kHz (min) t LOW SMBus Clock Low Time from V IN(0)max to VIN(0)max 4.7 25 µs (min) ms (max) t HIGH SMBus Clock High Time from V IN(1)min to VIN(1)min 4.0 µs (min) t R,SMB SMBus Rise Time (Note 12) 1 µs (max) t F,SMB SMBus Fall Time (Note 13) 0.3 µs (max) t OF Output Fall Time C L = 400pF, I O = 3mA, (Note 13) 250 ns (max) t TIMEOUT SMBDAT and SMBCLK Time Low for Reset of Serial Interface (Note 14) 25 35 ms (min) ms (max) t SU;DAT Data In Setup Time to SMBCLK High 250 ns (min) www.national.com 5 |
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