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SE98A Datasheet, PDF (7/43 Pages) NXP Semiconductors – DDR memory module temp sensor, 1.7 V to 3.6 V
NXP Semiconductors
SE98A
DDR memory module temp sensor, 1.7 V to 3.6 V
temperature (°C)
critical
Upper Boundary Alarm
Tamb
Lower Boundary Alarm
EVENT in Comparator mode
EVENT in Interrupt mode
software interrupt clear
EVENT in ‘Critical Temp only’ mode
Ttrip(u) − Thys
Ttrip(l) − Thys
Tth(crit) − Thys
Ttrip(u) − Thys
Ttrip(l) − Thys
time
(1)
Refer to Table 3 for figure note information.
Fig 6. EVENT output condition
(2)
(1) (3)
(4) (3)(5) * (6) (4) (2)
002aae324
Table 3.
Figure
note
(1)
(2)
(3)
(4)
(5)
(6)
EVENT output condition
EVENT output boundary
conditions
EVENT output
Comparator Interrupt Critical Temp
mode
mode
only mode
Tamb ≥ Ttrip(l)
Tamb < Ttrip(l) − Thys
Tamb > Ttrip(u)
Tamb ≤ Ttrip(u) − Thys
Tamb ≥ Tth(crit)
Tamb < Tth(crit) − Thys
H
L
H
L
L
H
L
L
H
H
L
H
L
L
L
L
H
H
Temperature Register Status bits
Bit 15
Above
Critical
Trip
Bit 14
Above
Alarm
Window
Bit 13
Below
Alarm
Window
0
0
0
0
0
1
0
1
0
0
0
0
1
1
0
0
1
0
When Tamb ≥ Tth(crit) and Tamb < Tth(crit) − Thys the EVENT output is in Comparator mode
and bit 0 of CONFIG (EVENT output mode) is ignored.
SE98A_2
Product data sheet
Rev. 02 — 6 August 2009
© NXP B.V. 2009. All rights reserved.
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