LM95214EB/NOPB National Semiconductor, LM95214EB/NOPB Datasheet
LM95214EB/NOPB
Specifications of LM95214EB/NOPB
Related parts for LM95214EB/NOPB
LM95214EB/NOPB Summary of contents
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... Programmable digital filters and analog front end filter Connection Diagram Pentium ™ trademark of Intel Corporation. © 2007 National Semiconductor Corporation ■ 0.125°C LSb temperature resolution ■ 0.03125°C LSb remote temperature resolution with digital filter enabled ■ ...
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Ordering Information Part Number LM95214CISD LM95214CISDX Simplified Block Diagram www.national.com Package NS Package Marking Number 95214CI SDA14B (LLP-14) 95214CI SDA14B (LLP-14) 2 Transport Media 1000 Units on Tape and Reel 4500 Units on Tape and Reel 30006102 ...
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Pin Descriptions Label Pin # Connect V 2 Positive Supply Voltage Input DD D4+ 3 Diode Current Source D3+ 4 Diode Current Source D− 5 Diode Return Current Sink D2+ 6 Diode Current Source D1+ 7 Diode ...
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Typical Application www.national.com 4 30006103 ...
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Absolute Maximum Ratings Supply Voltage Voltage at SMBDAT, SMBCLK, TCRIT1, TCRIT2, TCRIT3 Voltage at Other Pins D− Input Current Input Current at All Other Pins (Note 2) Package Input Current (Note 2) SMBDAT, TCRIT1, TCRIT2, TCRIT3 Output Sink Current Storage ...
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Logic Electrical Characteristics DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for all other limits =+25°C, unless otherwise noted. MAX A J Symbol Parameter SMBDAT, SMBCLK INPUTS V Logical “1” Input Voltage IN(1) ...
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SMBus DIGITAL SWITCHING CHARACTERISTICS Unless otherwise noted, these specifications apply for V Boldface limits apply for The switching characteristics of the LM95214 fully meet or exceed the published specifications of the SMBus version ...
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Pin # Label D4 D2+ 7 D1+ 8 GND TCRIT1 11 TCRIT2 12 SMBDAT 13 SMBCLK 14 TCRIT2 Note 3: Reflow temperature profiles are different for ...
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Typical Performance Characteristics Conversion Rate Effect on Average Power Supply Current Remote Temperature Reading Sensitivity to Thermal Diode Filter Capacitance 1.0 Functional Description LM95214 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface that can ...
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One round of conversions can be triggered in shutdown mode by writing to the one-shot register through the SMBus interface. LM95214 can be programmed to turn off ...
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Revision ID set to 7Bh 1.3 SMBus INTERFACE The LM95214 operates as a slave on the SMBus, so the SMBCLK line is an input and the SMBDAT line is bidirectional. The LM95214 never drives the SMBCLK line and it ...
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FIGURE 3. Digital Filter Response in a typical Intel processor process. The filter curves were purposely offset for clarity. Figure 3 shows the filter in use in a typical system. Note that the ...
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Temperature Digital Output Binary +0.125°C 0000 0000 0010 0000 0°C 0000 0000 0000 0000 When the digital filter is enabled on Remote 1 and 2 channels temperature data is represented by a 13-bit unsigned binary or 12-bit plus sign (two's ...
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FIGURE 5. Temperature Comparison Logic and Status Register Simplified Diagram www.national.com 14 30006150 ...
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TCRIT1 Mask Register, Status Register 1 and 2, and TCRIT1 output logic diagram. b) TCRIT2 Mask Register, Status Register 1 and 3, and TCRIT2 output logic diagram. c) TCRIT3 Mask Register, Status Register 1 and 4, and 30006151 TCRIT3 ...
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Limit assignments for each TCRIT output pin: TCRIT1 TCRIT2 Remote 4 Remote 4 Remote 4 Tcrit Limit Tcrit Limit Remote 3 Remote 3 Remote 3 Tcrit Limit Tcrit Limit Remote 2 Remote 2 Remote 2 Tcrit-1 Limit Tcrit-2 Limit Remote ...
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Serial Bus Write to the Internal Command Register (c) Serial Bus Read from a Register with the Internal Command Register preset to desired value. (d) Serial Bus Write followed by a Repeat Start and Immediate Read 1.12 SERIAL INTERFACE ...
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P0-P7: Command Register Name Local Temp MSB Local Temp LSB Remote Temp 1 MSB – Signed Remote Temp 1 LSB – Signed, Digital Filter Off Remote Temp 1 LSB – Signed, Digital Filter On Remote Temp 2 MSB – Signed ...
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Register Name Command TCRIT1 Mask TCRIT2 Mask TCRIT3 Mask Local Tcrit Limit Remote 1 Tcrit-1 Limit Remote 2 Tcrit-1 Limit Remote 3 Tcrit Limit Remote 4 Tcrit Limit Remote 1 Tcrit-2 and Tcrit-3 Limit Remote 2 Tcrit-2 and Tcrit-3 Limit ...
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Remote Temperature Value Registers with Signed Format Register Name Remote Temp 1 MSB – Signed Remote Temp 1 LSB – Signed, Digital Filter Off Remote Temp 1 LSB – Signed, Digital Filter On Remote Temp 2 MSB – Signed ...
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Remote Temperature Value Registers with Unsigned Format Register Name Remote Temp 1 MSB – Unsigned Remote Temp 1 LSB – Unsigned, Digital Filter Off Remote Temp 1 LSB – Unsigned, Digital Filter On Remote Temp 2 MSB – Unsigned ...
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Bit(s) Bit Name 7 SIGN 1/2 2.3 CONFIGURATION REGISTERS 2.3.1 Main Configuration Register Register Name Configuration Bit(s) Bit Name – STBY – 5–2 1 R4QE ...
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Bit(s) Bit Name Read/ Write – 7-2 RO 1-0 CR[1:0] R/W 2.3.3 Channel Conversion Enable When a conversion is disabled for a particular channel it is skipped. The continuous conversion rate is effected all other conversion rates are not effected ...
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Bit(s) Bit Name – 7–4 3–2 R2F[1:0] 1–0 R1F[1:0] 2.3.5 1-Shot Register Name 1-Shot Bit(s) Bit Name 7–0 - 2.4 STATUS REGISTERS 2.4.1 Common Status Register Register Name Common Status Register Bit(s) Bit Name 7 BUSY 6 NR – 5–4 ...
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Bit(s) Bit Name Read/ Write 1 SR2F RO 0 SR1F RO 2.4.2 Status 1 Register (Diode Fault) Status fault bits for open or shorted diode (i.e. Short Fault: D+ shorted to Ground or D-; Open Fault: D+ shorted to V ...
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Status 2 (TCRIT1) Status bits for TCRIT1. When one or more of these bits are set and if not masked the TCRIT1 output will activate. TCRIT1 will deactivate when all these bits are cleared. Register Name Status 2 (TCRIT1) ...
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Status 3 (TCRIT2) Status bits for TCRIT2. When one or more of these bits are set and if not masked the TCRIT2 output will activate. TCRIT2 will deactivate when all these bits are cleared. Register Name Status 3 (TCRIT2) ...
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Status 4 (TCRIT3) Status bits for TCRIT3. When one or more of these bits are set and if not masked the TCRIT3 output will activate. TCRIT3 will deactivate when all these bits are cleared. Register Name Status 4 (TCRIT3) ...
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MASK REGISTERS 2.5.1 TCRIT1 Mask Register The mask bits in this register allow control over which error events propagate to the TCRIT1 pin. Register Name TCRIT1 Mask Bit(s) Bit Name Read/ Write – 7 R4TM R/W 3 ...
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TCRIT3 Mask Register The mask bits in this register allow control over which error events propagate to the TCRIT3 pin. Register Name TCRIT3 Mask Bit(s) Bit Name Read/ Write – 7 R4TM R/W 3 R3TM R/W 2 ...
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Register Name Remote 1 Tcrit-1 Limit (used by TCRIT1 error events) Remote 2 Tcrit-1 Limit (used by TCRIT1 error events) Remote 3 Tcrit Limit (used by TCRIT1, TCRIT2 and TCRIT3 error events) Remote 4 Tcrit Limit (used by TCRIT1, TCRIT2 ...
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Bit(s) Bit Name 2.7 IDENTIFICATION REGISTERS Register Name Manufacturer ID Revision ID www.national.com Read/ Description Write R/W bit weight 2°C R/W bit weight 1°C Command Read Byte Write (Hex) 0xFE 0xFF ...
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Applications Hints The LM95214 can be applied easily in the same way as other integrated-circuit temperature sensors, and its remote diode sensing capability allows used in new ways as well. It can be soldered to a ...
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TruTherm technology can be found in the LM95234 four channel remote diode sensor that is pin and register compat- ible with the LM95214. The LM95214 does not support this technology. 3.1.2 Calculating Total System Accuracy The voltage seen by the ...
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... Compensating for Different Non-Ideality In order to compensate for the errors introduced by non-ide- ality, the temperature sensor is calibrated for a particular processor. National Semiconductor temperature sensors are always calibrated to the typical non-ideality and series resis- tance of a given transistor type. The LM95214 is calibrated ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 14-Lead Molded Leadless Leadframe Package (LLP), Order Number LM95214CISD or LM95214CISDX NS Package Number SDA14B 36 ...
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Notes 37 www.national.com ...
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