lm84cimqax National Semiconductor Corporation, lm84cimqax Datasheet
lm84cimqax
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lm84cimqax Summary of contents
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... II processor is a registered trademark of the Intel Corporation ® registered trademark of the Philips Corporation. © 2001 National Semiconductor Corporation n Register readback capability n 7 bit plus sign temperature data format n 2 address select lines enable 9 LM84s to be connected and digital to a single bus ™ ...
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... Connection Diagram Ordering Information Order Number LM84BIMQA LM84BIMQAX LM84CIMQA LM84CIMQAX Typical Application www.national.com QSOP-16 TOP VIEW NS SMBus Transport Package Revision Media Number Level MQA16A 95 Units in 1.1 (QSOP-16) Rail MQA16A 2500 Units on 1.1 (QSOP-16) Tape and Reel MQA16A 95 Units in 1.0 (QSOP-16) Rail MQA16A 2500 Units on 1 ...
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Pin Descriptions Label Pin # 13 D− 4 ADD0–ADD1 10, 6 GND 7, 8 T_CRIT_A 11 SMBData 12 SMBCLK Function Manufacturing test pins. Left floating. PC board ...
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Absolute Maximum Ratings Supply Voltage Voltage at Any Pin (Pins 1,5,9), ADD0, ADD1, D All other pins (except D−) D− Input Current Input Current at All Other Pins (Note 2) Package Input Current (Note 2) SMBData, T_CRIT_A Output ...
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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 SMBData, SMBCLK V Logical “1” Input Voltage IN(1) V ...
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Logic Electrical Characteristics SMBus DIGITAL SWITCHING CHARACTERISTICS Unless otherwise noted, these specifications apply for V pF. Boldface limits apply for The switching characteristics of the LM84 fully meet or exceed the published specifications of the SMBus ...
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Logic Electrical Characteristics (Continued) SMBus TIMEOUT 7 DS100961-13 www.national.com ...
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Logic Electrical Characteristics Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its rated operating conditions. Note 2: When the input ...
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Logic Electrical Characteristics FIGURE 2. Temperature-to-Digital Transfer Function (Non-linear scale for clarity) 1.0 Functional Description The LM84 temperature sensor incorporates a band-gap type temperature sensor using a Local or Remote diode and an 8-bit ADC (Delta-Sigma Analog-to-Digital Converter). The LM84 ...
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Functional Description 1.3 SMBus INTERFACE The LM84 operates as a slave on the SMBus, so the SMBCLK line is an input (no clock is generated by the LM84) and the SMBData line is bi-directional. According to SMBus specifications, the ...
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Functional Description 1.7 COMMUNICATING with the LM84 There are 10 data registers in the LM84, selected by the Command Register. At power-up the Command Register is set to “00”, the location for the Read Local Temperature Register. The Command ...
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Functional Description 1.8 LM84 REGISTERS 1.8.1 COMMAND REGISTER Selects which registers will be read from or written to. Data for this register should be transmitted during the Command Byte of the SMBus write communication ...
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Functional Description 1.8.6 LOCAL AND REMOTE T_CRIT REGISTERS (Read/Write MSB Bit 6 Bit 5 Bit 4 Bit 3 D7–D0: RT_CRIT and LT_CRIT setpoint temperature data. Power up default is LT_CRIT = RT_CRIT = 127˚C. ...
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Application Hints The LM84 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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Application Hints (Continued) 7. The ideal place to connect the LM84’s GND pin is as close as possible to the Processors GND associated Noise on the digital lines, overshoot greater than V undershoot less than GND, may prevent successful ...
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... Physical Dimensions Order Number LM84BIMQA, LM84BIMQAX, LM84CIMQA or LM84CIMQAX LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or ...