Datasheet > HMA81GU7CJR8N-UHT0

HMA81GU7CJR8N-UHT0

更新时间： 2023-12-06 20:01:35

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HMA81GU7CJR8N-UHT0 数据手册

Symbol

Type

Function

Alert: It has multiple functions, such as CRC error flag, Command and Address Parity

error flag, as an Output signal. If there is an error in CRC, then ALERT_n goes LOW for

the period time interval and goes back HIGH. If there is an error in Command Address

ALERT_n

Output Parity Check, then ALERT_n goes LOW for a relatively long period until on going DRAM

internal recovery transaction is complete. During Connectivity Test mode, this pin

functions as an input.

Using this signal or not is dependent on the system.

RFU

Reserved for Future Use. No on DIMM electrical connection is present.

No Connect: No on DIMM electrical connection is present.

VDD¹

Supply

Power Supply: 1.2 V +/- 0.06 V

Ground

VSS

DRAM Activating Power Supply: 2.5V (2.375V min , 2.75V max)

Power Supply for termination of Address, Command and Control, VDD/2.

12V supply not used on UDIMMs.

VPP

VTT²

12V

Power supply used to power the I2C bus on the SPD-TSE

Reference voltage for CA

VDDSDP

VREFCA

Note:

1. For PC4 VDD 1.2V. For PC4L VDD is TBD.

2. For PC4 VTT is 0.60V. For PC4L VTT is TBD.

Rev. 1.5 / Jan.2020

1...5 6 789 10 11...77

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