lm95172qa2 National Semiconductor Corporation, lm95172qa2 Datasheet
lm95172qa2
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lm95172qa2 Summary of contents
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... Applications ■ Automotive Features ■ LM95172QA2 MDA is AEC-Q100 Grade 0 qualified and is manufactured on an Automotive Grade Flow. Simplified Block Diagram MICROWIRE™ trademark of National Semiconductor Corporation. TRI-STATE® registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation ■ ...
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... Output 4 SC Input Input 7 NC N/A 8 GND Ground 9 NC N/A 10 SI/O Bidirectional Serial I/O Backside BACK N/A www.national.com LM95172QA2 MDA Bond Pad Layout 30035702 X Coordinate (µm) Y Coordinate (µm) 1 497.75 2 242.80 3 −147.35 4 −497. Connect 6 −497. Connect 8 0. Connect 10 497.75 Description Analog Power Supply DC Voltage from 3 ...
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... Ordering Information Order Number LM95172QA2 MDA Typical Application FIGURE 1. Microcontroller Interface - normal connection NS Package Number Transport Media Die form. No package. 7000 units Surf Tape 3 30035703 www.national.com ...
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... Shutdown Mode T = −40°C to 140°C A Power-On Reset Threshold T = −40°C to 175°C A www.national.com Operating Ratings (Note 1) Specified Temperature Range LM95172QA2 MDA −0.2V to 6.0V (Note 5) −0. 0.2V Analog Supply Voltage Range −65°C to +175°C Digital Supply Voltage Range V 2500 V ...
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Logic Electrical Characteristics DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for all other limits MIN MAX Symbol Parameter V Logical "1" Input Voltage IH V Logical ...
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... SC High to SI/O Input Hold Time 6 t SI/O Input to SC High Set-Up Time Low to CS High Hold Time 8 t Data Turn-Around Time: SI/O input (write to LM95172QA2 MDA output (read from LM95172QA2 MDA) t Bus free time between communications: CS High to CS Low. BUF (Note 13) www.national.com = V = 3.0V to 3.6V (Note 6) ...
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... Note 10: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level). Note 11: This specification is provided only to indicate how often temperature data is updated. The LM95172QA2 MDA can be read at any time without regard to conversion state (and will yield last conversion result). A conversion in progress will not be interrupted. The output shift register will be updated at the completion of the read and a new conversion restarted ...
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TRI-STATE Test Circuit www.national.com 30035707 FIGURE 7. 8 ...
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Typical Performance Characteristics Steady State Power Supply Current vs Temperature FIGURE 8. Temperature Error vs Temperature FIGURE 9. 30035796 30035797 9 www.national.com ...
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... The LM95172QA2 MDA temperature sensor incorporates a temperature sensor and a 13-bit to 16-bit ΣΔ ADC (Sigma- Delta Analog-to-Digital Converter). Compatibility of the LM95172QA2 MDA's three wire serial interface with SPI and FIGURE 10. LM95172QA2 MDA Functional Block Diagram www.national.com MICROWIRE allows simple communications with common microcontrollers and processors ...
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... Temperature Conversion Time specifications within the Temperature-to-Digital Characteristics section.) 3. Write a “0” to the Shutdown bit to restore the LM95172QA2 MDA to normal mode. 4. Wait for at least the specified maximum conversion time for the initial default of 13-bits resolution in order to ensure that accurate data appears in the Temperature Register ...
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... Operating the LM95172QA2 MDA in this one-shot mode allows for extremely low average-power com- sumption, making it ideal for low-power applications. When the One-shot bit is set, the LM95172QA2 MDA initiates a temperature conversion. After this initiation, but before the completion of the conversion, and resultant register updates, the LM95172QA2 MDA " ...
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... FIGURE 13. Reading the Temperature Register followed by a read or write from another register (Control/Status, T FIGURE 14. Reading the Temperature Register followed by repeated commands and Data Register accesses (Control/ written to the LM95172QA2 MDA. This command byte con- tains a R/W bit and the address of the register to be commu- nicated with next (see Section 1 ...
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TEMPERATURE DATA FORMAT Temperature data is represented by a 13- to 16-bit, two's complement word with a Least Significant Bit (LSB) equal to 13-Bit Resolution. First Bit (D15) is Sign, the last bit (D0) is Toggle and bits D1 ...
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... Control/Status register must go high and stay high for the specified maximum conversion time for 16-bits resolution. The LM95172QA2 MDA will always finish a temperature con- version and update the temperature registers before shutting down. Writing a “0” to the Shutdown Bit restores the LM95172QA2 MDA to normal mode. 15 Bits D15 - D1 Hex ...
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... Command Byte P7 R/W Bit <7> Read/Write Bit. Tells the LM95172QA2 MDA if the host will be writing to, or reading from, the register to which this byte is pointing. Bits <6:3> Not Used. These Bits must be zero illegal address is written, the LM95172QA2 MDA will return 0000h on the subsequent read. ...
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... POL Bit <15>: Shutdown (SD) Bit. Writing a “1” to this bit and holding it high for at least the specified maximum conversion time, at the existing temperature resolution setting, enables the Shutdown Mode. Writing a “0” to this bit restores the LM95172QA2 MDA to normal mode. Bit <14>: One-Shot Bit. When in shutdown mode (Bit <15> is "1"), initates a single temperature conversion and update of the temperature register with new temperature data. Has no effect when in continuous conversion mode (i.e., when Bit < ...
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Control/Status Register (Continued) Bit <5:4>: Temperature Resolution Bits. Selects one of four user-programmable temperature data resolutions as indicated in the following table. Bit <3>: Always write a zero to this Bit. Bit <2:1>: Reserved Bits. Will return whatever was last ...
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... Bit <15:8>: Manufacturer Identification Byte. Always returns 80h to uniquely identify the manufacturer as National Semiconductor Corporation. Bit <7:4>: Product Identification Nibble. Always returns 30h to uniquely identify this part as the LM95172QA2 MDA. Bit <3:0>: Die Revision Nibble. Returns 0h to uniquely identify the revision level as zero. Reset State: 8030h Reset Conditions: Upon Power-on Reset ...
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... Typical Applications FIGURE 15. Temperature monitor using Intel 196 processor FIGURE 16. LM95172QA2 MDA digital input control using microcontroller's general purpose I/O. www.national.com 30035720 30035719 20 ...
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... Physical Dimensions For Bond Pad Mechanical Dimensions, see Connection Diagram Section 30035702 Order Number LM95172QA2 MDA Bare Die TOP VIEW Orientation of Die Surf Tape 21 30035723 www.national.com ...
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Dimensions of Surf Tape Transport Media. Use Option 01. www.national.com 22 30035799 ...
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Notes 23 www.national.com ...
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... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...