SE98ATP,547 NXP Semiconductors, SE98ATP,547 Datasheet - Page 22

• Manufacturer Part Number: SE98ATP,547
• Description: IC TEMP SENSOR DDR 8-HWSON
• Manufacturer: NXP Semiconductors

Specifications of SE98ATP,547

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 1.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-WSON (Exposed Pad), 8-HWSON
• Temperature Threshold: Programmable
• Full Temp Accuracy: +/- 1 C
• Digital Output - Bus Interface: 2-Wire, SMBus, I2C
• Digital Output - Number Of Bits: 11
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.7 V
• Description/function: DDR Memory Module Temperature Sensor
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 250 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4731-2; SE98ATP,147

NXP Semiconductors
SE98A_4
Product data sheet
8.5.1 Upper Boundary Alarm Trip register (16-bit read/write)
8.5 Temperature Trip Point registers
The value is the upper threshold temperature value for Alarm mode. The data format is
2’s complement with bit 2 = 0.25 °C. ‘RFU’ bits will always report zero. Interrupts will
respond to the presently programmed boundary values. If boundary values are being
altered in-system, it is advised to turn off interrupts until a known state can be obtained to
avoid superfluous interrupt activity.
Table 12.
Table 13.
Bit
Symbol
Reset
Access
Bit
15:13
12
11:2
1:0
Bit
Symbol
Reset
Access
Symbol
RFU
SIGN
UBT
RFU
Upper Boundary Alarm Trip register bit allocation
Upper Boundary Alarm Trip register bit description
R/W
15
R
0
7
0
Rev. 04 — 25 November 2009
RFU
R/W
14
R
0
6
0
Description
reserved; always 0
Sign (MSB)
Upper Boundary Alarm Trip Temperature (LSB = 0.25 °C)
reserved; always 0
R/W
13
R
0
5
0
UBT[5:0]
DDR memory module temp sensor, 1.7 V to 3.6 V
SIGN
R/W
R/W
12
0
4
0
R/W
R/W
11
0
3
0
R/W
R/W
10
0
2
0
UBT[9:6]
© NXP B.V. 2009. All rights reserved.
R/W
9
0
R
1
0
SE98A
RFU
R/W
22 of 43
8
0
R
0
0