LM63CIMA/NOPB National Semiconductor, LM63CIMA/NOPB Datasheet
LM63CIMA/NOPB
Specifications of LM63CIMA/NOPB
LM63CIMA
Related parts for LM63CIMA/NOPB
LM63CIMA/NOPB Summary of contents
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... Offset register can adjust for a variety of thermal diodes Connection Diagram Intel ™ trademark of Intel Corporation. Pentium ™ trademark of Intel Corporation. © 2010 National Semiconductor Corporation LM63 ■ 10 bit plus sign remote diode temperature data format, with 0.125°C resolution ■ ...
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Pin Descriptions Pin Name Input/Output V 1 Power Supply Input Analog Input 3 D− Analog Input Open-Drain 4 PWM Digital Output 5 GND Ground 6 ALERT/TACH Digital I/O Digital Input/ 7 SMBDAT Open-Drain Output 8 SMBCLK Digital ...
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Typical Application Ordering Information Part Description LM63C (±1°C) 8-pin SOIC LM63C (±1°C) 8-pin SOIC LM63D (±3°C) 8-pin SOIC LM63D (±3°C) 8-pin SOIC LM63 Evaluation Board With Software and User’s Guide Top Mark Order Number LM63CIMA LM63CIMAX LM63CIMA LM63CIMA LM63DIMA LM63DIMAX ...
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Absolute Maximum Ratings 2) Supply Voltage Voltage on SMBDAT, SMBCLK, ALERT/Tach, PWM Pins Voltage on Other Pins Input Current, D− Pin Input Current at All Other Pins (Note Package Input Current (Note 3) Package Power Dissipation SMBDAT, ALERT, ...
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AC Electrical Characteristics The following specifications apply for V specified in the conditions. Boldface limits apply for T Symbol Parameter TACHOMETER ACCURACY Fan Control Accuracy Fan Full-Scale Count Fan Counter Clock Frequency Fan Count Update Frequency FAN PWM OUTPUT Frequency ...
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SMBus Digital Switching Characteristics Unless otherwise noted, these specifications apply for V pF. Boldface limits apply for characteristics of the LM63 fully meet or exceed the published specifications of the SMBus version 2.0. The following parameters ...
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Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee performance limits. For guaranteed specifications and test conditions, see the Electrical ...
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Functional Description The LM63 Remote Diode Temperature Sensor with Integrat- ed Fan Control incorporates a ΔV BE sor using a Local or Remote diode and a 10-bit plus sign ΔΣ ADC (Delta-Sigma Analog-to-Digital Converter). The pulse- width modulated (PWM) ...
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Comparator Mode Register must be asserted. This is not the power-on default state. FIGURE 3. ALERT Output as Temperature Comparator Response Diagram 1.2.2 ALERT Output as an Interrupt The LM63's ALERT output can be implemented as a simple interrupt ...
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Alerting Device(s) send their address. While transmitting their address, alerting devices sense whether their address has been transmitted correctly. (The LM63 will reset its ALERT output and set the ALERT Mask bit once its complete address has been transmitted ...
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COMMUNICATING WITH THE LM63 Each data register in the LM63 falls into one of four types of user accessibility: 1. Read Only 2. Write Only 3. Read/Write same address 4. Read/Write different address A Write to the LM63 is ...
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FIGURE 9. Fault Queue Temperature Response Diagram 1.11 ONE-SHOT REGISTER The One-Shot Register is used to initiate a single conversion and comparison cycle when the device is in standby mode, after which the data returns to standby. This is not ...
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LM63 Registers The following pages include: Section 2.1, a Register Map in Hexadecimal Order, which shows a summary of all registers and their bit assignments, Section 2.2, a Register Map in Functional Order, and Section 2.3, a detailed explanation ...
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Register Register Name 0x[HEX] 4E [Reserved] 4F Lookup Table Hystersis 50–5F Lookup Table 60–BE [Reserved] BF Rmt Diode Temp Filter C0–FD [Reserved] FE Manufacturer’ Stepping/Die Rev. ID 2.2 LM63 REGISTER MAP IN FUNCTIONAL ORDER The following is a ...
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Register Register Name [HEX] ALERT STATUS AND MASK REGISTERS AND TEST REGISTERS FF Stepping/Die Rev. ID [RESERVED] REGISTERS—NOT USED 1A–1F 20 22–2F 30–3F 40–45 4E 60–BE C0–FD 2.3 LM63 INITIAL REGISTER SEQUENCE ...
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LM63 Register Descriptions In Functional Order Fan Control Registers Address Read/ Bit POR Hex Write s Value 4A FAN PWM AND TACHOMETER CONFIGURATION REGISTER HEX 7 PWM Clock R [Reserved] ...
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Address Read/ Bit POR Hex Write s Value 4D FAN PWM FREQUENCY REGISTER HEX 7:5 000 4D R/W Frequency 4:0 10111 4C PWM VALUE REGISTER HEX 7:6 00 Read (Write only if 4C reg 4A 5:0 000000 bit 5 = ...
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Address Read/ Bit POR Hex Write s Value LOOKUP TABLE (7 Bits for Temperature and 6 Bits for PWM for each Temperature/PWM Pair) HEX HEX 7 0 Lookup Table 50 Temperature 6:0 0x7F 7:6 00 Lookup Table ...
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Configuration Register Address Read/ POR Bits Hex Write Value 03 (09) CONFIGURATION REGISTER HEX STANDBY PWM Disable STANDBY 03 (09) R/W 4:3 00 ALERT/Tach 2 0 T_CRIT Limit 1 0 RDTS Fault 0 ...
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Tachometer Count And Limit Registers Address Read/ POR Bits Hex Write Value 47 TACHOMETER COUNT (MSB) and 46 HEX and ensure MSB and LSB are from the same reading) Read 47 7:0 N/A Only Read 7:2 N/A Only 46 Read ...
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Remote Diode Temperature, Offset And Setpoint Registers Address Read/ POR Bits Hex Write Value Remote Diode Read 01 7:0 N/A Temperature Only Reading (MSB) Remote Diode 7:5 N/A Read 10 Temperature Only Reading (MSB) 4 R/W 7:5 00 ...
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ALERT Status And Mask Registers Address Read/ POR Bits Hex Write Value 02 ALERT STATUS REGISTER (8-bits) (All Alarms are latched until read, then cleared if alarm condition was removed at HEX the time of the read ...
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... Only Revision ID FE MANUFACTURER’S ID REGISTER (8-bits) HEX Read FE 7:0 0x01 Manufacturer’s ID 0x01 = National Semiconductor Only Name Sets the conversion rate of the LM63. 00000000 = 0.0625 Hz 00000001 = 0.125 Hz 00000010 = 0.25 Hz 00000011 = 0.5 Hz 00000100 = 1 Hz Rate 00000101 = 2 Hz 00000110 = 4 Hz ...
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Application Notes 3.1 FAN CONTROL DUTY CYCLE VS. REGISTER SETTINGS AND FREQUENCY PWM PWM Step Freq Value Resolution [5:0] % [4:0] for 100 16 12 ...
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USE OF THE LOOKUP TABLE FOR NON-LINEAR PWM VALUES VS TEMPERATURE The Lookup Table, Registers 50 through 5F, can be used to create a non-linear PWM vs Temperature curve that could be used to reduce the acoustic noise from ...
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... Compensating for Diode 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 of a particular processor type. The LM63 is calibrated for the non-ideality of the 0.13 micron Intel Pentium 4 and Mobile Pentium 4 Processor-M proces- sors ...
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Trace resistance of 1 Ω can cause as much as 1°C of error. This error can be compensated by using the Remote Temperature Offset Registers, since the value placed in these registers will automatically be ...
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Physical Dimensions 8-Lead (0.154-Inch Wide) Molded Narrow Small-Outline Package (SOIC) www.national.com inches (millimeters) unless otherwise noted JEDEC Registration Number MS-012 Order Number LM63CIM NS Package Number M008A 28 ...
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Notes 29 www.national.com ...
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