參數(shù)資料
型號: MT4JSF6464HIY-80BXX
元件分類: DRAM
英文描述: 64M X 64 DDR DRAM MODULE, ZMA204
封裝: LEAD FREE, SODIMM-204
文件頁數(shù): 8/19頁
文件大?。?/td> 618K
代理商: MT4JSF6464HIY-80BXX
PDF: 09005aef82b2f090/Source: 09005aef82b2f012
Micron Technology, Inc., reserves the right to change products or specifications without notice.
JSF4C64_64x64HY.fm - Rev. B 3/08 EN
16
2007 Micron Technology, Inc. All rights reserved
512MB (x64, SR) 204-Pin DDR3 SDRAM SODIMM
Temperature Sensor with Serial Presence-Detect EEPROM
Figure 4:
Hysteresis
Notes:
1. TH is the value set in the alarm temperature upper boundary trip register.
2. TL is the value set in the alarm temperature lower boundary trip register.
3. Hyst is the value set in the hysteresis bits of the configuration register.
5
Clear event
0: No effect
1: Clears the event when the temperature sensor is in
the interrupt mode
6
Alarm window lock bit
0: Alarm trips are not locked and can be changed
1: Alarm trips are locked and cannot be changed
7
Critical trip lock bit
0: Critical trip is not locked and can be changed
1: Critical trip is locked and cannot be changed
8
Shutdown mode
0: Enabled
1: Shutdown
The shutdown mode is a power-saving mode that
disables the temperature sensor.
10:9
Hysteresis enable
00: Disable
01: Enable at 1.5°C
10: Enable at 3°C
11: Enable at 6°C
When enabled, a hysteresis is applied to temperature
movement around the trip points. As an example, if the
hysteresis register is enabled to a delta of 6°C, the
preset trip points will toggle when the temperature
reaches the programmed value. These values will reset
when the temperature drops below the trip points
minus the set hysteresis level. In this case, this would be
critical temperature minus 6°C.
The hysteresis is applied both to the above alarm
window and to the below alarm window bits found in
the read-only temperature register. EVENT# is also
affected by this register.
Table 18:
Configuration Register Bit Descriptions (continued)
Bit
Description
Notes
T
H
1
T
L
2
T
H - Hyst
3
T
L - Hyst
Below window bit
Above window bit
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