STTS424E02BDA3E STMICROELECTRONICS [STMicroelectronics], STTS424E02BDA3E Datasheet - Page 17

• Manufacturer Part Number: STTS424E02BDA3E
• Description: Memory module temperature sensor with a 2 Kb SPD EEPROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STTS424E02
Table 5.
4.1
4.1.1
4.1.2
P2
0
0
0
0
1
1
1
1
P1
0
0
1
1
0
0
1
1
P0
0
1
0
1
0
1
0
1
Pointer register select bits (type, width, and default values)
Capability register (read-only)
This 16-bit register is Read-only, and provides the TS capabilities which comply with the
minimum JEDEC 424.4 specifications (see
STTS424E02 provides temperatures at 0.25 resolution (10-bit).
Alarm window trip
The device provides a comparison window with an upper temperature trip point in the Alarm
Upper Boundary register, and a lower trip point in the Alarm Lower Boundary register. When
enabled, the Event output will be triggered whenever entering or exiting (crossing above or
below) the Alarm window.
Critical trip
The device can be programmed in such a way that the Event output is only triggered when
the temperature exceeds the critical trip point. The Critical Temperature setting is
programmed in the Critical Temperature register. When the temperature sensor reaches the
critical temperature value in this register, the device is automatically placed in Comparator
mode, which means that the Critical Event output cannot be cleared by using software to set
the Clear Event bit.
CAPA
CONF
UPPER
LOWER
CRITICAL Critical temperature
TEMP
MANU
ID
Name
Thermal sensor capabilities
Configuration
Alarm temperature upper boundary
Alarm temperature lower boundary
Temperature
Manufacturer ID
Device ID/revision
Register description
Table 6
C-grade
B-grade
DA package
DN package
and
Table 7 on page
Temperature sensor registers
Width
(bits)
16
16
16
16
16
16
16
16
(R/W)
Type
R/W
R/W
R/W
R/W
18). The
R
R
R
R
Default state
0x002D
0x104A
0x002F
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0001
(POR)
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