Datasheet

TMP431
TMP432
www.ti.com SBOS441F –SEPTEMBER 2009–REVISED AUGUST 2013
Table 3. TMP431 Register Map
POINTER ADDRESS
(HEX) BIT DESCRIPTIONS
POWER-ON REGISTER
READ WRITE RESET (HEX) D7 D6 D5 D4 D3 D2 D1 D0 DESCRIPTIONS
Local Temperature
00 NA
(1)
00 LT11 LT10 LT9 LT8 LT7 LT6 LT5 LT4
(High Byte)
Remote
01 NA 00 RT11 RT10 RT9 RT8 RT7 RT6 RT5 RT4 Temperature (High
Byte)
02 NA 80 BUSY LHIGH LLOW RHIGH RLOW OPEN RTHRM LTHRM Status Register
Configuration
03 09 00 MASK SD AL/TH 0 0 RANGE 0 0
Register 1
Conversion Rate
04 0A 07 0 0 0 0 R3 R2 R1 R0
Register
Local Temperature
05 0B 55 LTH11 LTH10 LTH9 LTH8 LTH7 LTH6 LTH5 LTH4 High Limit (High
Byte)
Local Temperature
06 0C 00 LTL11 LTL10 LTL9 LTL8 LTL7 LTL6 LTL5 LTL4 Low Limit (High
Byte)
Remote
07 0D 55 RTH11 RTH10 RTH9 RTH8 RTH7 RTH6 RTH5 RTH4 Temperature High
Limit (High Byte)
Remote
08 0E 00 RTL11 RTL10 RTL9 RTL8 RTL7 RTL6 RTL5 RTL4 Temperature Low
Limit (High Byte)
NA 0F XX X
(2)
X X X X X X X One-Shot Start
Remote
10 NA 00 RT3 RT2 RT1 RT0 0 0 0 0 Temperature (Low
Byte)
Remote
13 13 00 RTH3 RTH2 RTH1 RTH0 0 0 0 0 Temperature High
Limit (Low Byte)
Remote
14 14 00 RTL3 RTL2 RTL1 RTL0 0 0 0 0 Temperature Low
Limit (Low Byte)
Local Temperature
15 NA 00 LT3 LT2 LT1 LT0 0 0 0 0
(Low Byte)
Local Temperature
16 16 00 LTH3 LTH2 LTH1 LTH0 0 0 0 0 High Limit (Low
Byte)
Local Temperature
17 17 00 LTL3 LTL2 LTL1 LTL0 0 0 0 0 Low Limit (Low
Byte)
18 18 00 NC7 NC6 NC5 NC4 NC3 NC2 NC1 NC0 N-factor Correction
Remote THERM
19 19 55
(3)
RTHL7 RTHL6 RTHL5 RTHL4 RTHL3 RTHL2 RTHL1 RTHL0
Limit
Configuration
1A 1A 1C 0 0 0 REN LEN RC 0 0
Register 2
1F 1F 00 0 0 0 0 0 0 RIMASK LMASK Channel Mask
20 20 55
(3)
LTHL7 LTHL6 LTHL5 LTHL4 LTHL3 LTHL2 LTHL1 LTHL0 Local THERM Limit
21 21 0A TH7 TH6 TH5 TH4 TH3 TH2 TH1 TH0 THERM Hysteresis
Consecutive Alert
22 22 70 0 CTH2 CTH1 CTH0 CALT2 CALT1 CALT0 0
Register
Beta Range
25 25 08 0 0 0 0 BC3 BC2 BC1 BC0
Register
NA FC 00 X
(4)
X X X X X X X Software Reset
FD NA 31 0 0 1 1 0 0 0 1 TMP431 Device ID
FE NA 55 0 1 0 1 0 1 0 1 Manufacturer ID
(1) NA = Not applicable; register is write- or read-only.
(2) X = Indeterminate state.
(3) TMP431C and TMP431D versions have a power-on reset value of 69h.
(4) X = Undefined. Writing any value to this register initiates a software reset; see the Software Reset section.
Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Links: TMP431 TMP432