MAX6604ATA+TW【PDF 12/15 页】IC TEMP SENSOR DDR MEMORY 8TDFN

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Critical Temperature Register (Read/Write)

[Address = 04h, POR = 0000h]

The data format for the critical temperature value is in

twos complement with one LSB = 0.25癈. Critical tem-

perature register has a -256.00癈 to +255.75癈 range.

All unused bits are set to zero.

Precision Temperature Monitor for

DDR Memory Modules

12 ______________________________________________________________________________________

Table 7. Critical Temperature Register (Read/Write)

Temperature Register (Read Only)

[Address = 05h, POR = 0000h]

The data format is twos complement with one LSB =

0.125癈. All unused bits are set to zero. The most sig-

nificant bit has a resolution of 128癈. The trip status bits

represent the internal temperature trip detection, and

are not affected by the status of the EVENT or configu-

ration bits (e.g., event output control, clear event, etc.).

If neither the above alarm window (bit 14) nor the below

alarm window (bit 13) are set (i.e., both are 0), the cur-

rent temperature is within the alarm window.

Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Table 8. Temperature Register (Read Only)

Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

BIT

DEFINITION

Below alarm window

0 = Temperature is equal to or above the alarm window lower boundary temperature

1 = Temperature is below the alarm window (temperature < alarm temperature lower boundary minus the hysteresis)

Above alarm window

0 = Temperature is equal to or below the alarm window upper boundary temperature minus the hysteresis

1 = Temperature is above the alarm window (temperature > alarm temperature upper boundary)

Above critical trip

0 = Temperature is below the critical temperature setting minus the hysteresis

1 = Temperature is equal to or above the critical temperature setting (temperature e critical temperature)

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