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LM64 Datasheet(PDF) 19 Page - Texas Instruments

Part # LM64
Description  LM64 ±1°C Remote Diode Temperature Sensor with PWM Fan Control and 5 GPIOs
PDF  42 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM64 Datasheet(HTML) 19 Page - Texas Instruments

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7 Registers
7.1 LM64 Registers
The following pages include: Section 7.1.1 a Register Map in Hexadecimal Order, which shows a summary of
all registers and their bit assignments, Section 7.1.2, a Register Map in Functional Order, and Section 7.1.3, a
detailed explanation of each register. Do not address the unused or manufacturer’s test registers.
7.1.1 LM64 Register Map in Hexadecimal Order
The following is a Register Map grouped in hexadecimal address order. Some address locations have been
left blank to maintain compatibility with LM86. Addresses in parenthesis are mirrors of “Same As” address for
backwards compatibility with some older software. Reading or writing either address will access the same 8-bit
register.
Register
0x[HEX]
Register
Name
DATA BITS
D7
D6
D5
D4
D3
D2
D1
D0
00
Local
Temperature
LT7
LT6
LT5
LT4
LT3
LT2
LT1
LT0
01
Rmt Temp
MSB
RTHB±
RTHB14
RTHB13
RTHB12
RTHB11
RTHB10
RTHB9
RTHB8
02
ALERT
Status
BUSY
LHIGH
0
RHIGH
RLOW
RDFA
RCRIT
TACH
03
Configuratio
n
ALTMSK
STBY
PWMDIS
0
0
ALT/TCH
TCRITOV
FLTQUE
04
Conversion
Rate
0
0
0
0
CONV3
CONV2
CONV1
CONV0
05
Local High
Setpoint
LHS7
LHS6
LHS5
LHS4
LHS3
LHS2
LHS1
LHS0
06
[Reserved]
Not Used
07
Rmt High
Setpoint
MSB
RHSHB15
RHSHB14
RHHBS13
RHSHB12
RHSHB11
RHSHB10
RHSHB9
RHSHB8
08
Rmt Low
Setpoint
MSB
RLSHB15
RLSHB14
RLSHB13
RLSHB12
RLHBS11
RLSHB10
RLSHB9
RLSHB8
(09)
Same as 03
(0A)
Same as 04
(0B)
Same as 05
0C
[Reserved]
Not Used
(0D)
Same as 07
(0E)
Same as 08
0F
One Shot
Write Only. Write command triggers one temperature conversion cycle.
10
Rmt Temp
LSB
RTLB7
RTLB6
RTLB5
0
0
0
0
0
11
Rmt Temp
Offset MSB
RTOHB15
RTOHB14
RTOHB13
RTOHB12
RTOHB11
RTOHB10
RTOHB9
RTOHB8
12
Rmt Temp
Offset LSB
RTOLB7
RTOLB6
RTOLB5
0
0
0
0
0
13
Rmt High
Setpoint
LSB
RHSLB7
RHSLB6
RHSLB5
0
0
0
0
0
14
Rmt Low
Setpoint
LSB
RLSLB7
RLSLB6
RLSLB5
0
0
0
0
0
15
[Reserved]
Not Used
www.ti.com
LM64
SNAS207B – MAY 2004 – REVISED JANUARY 2024
Copyright © 2024 Texas Instruments Incorporated
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