MT47H32M16HR-25E IT:GTR Micron Technology Inc, MT47H32M16HR-25E IT:GTR Datasheet - Page 11

• Manufacturer Part Number: MT47H32M16HR-25E IT:GTR
• Manufacturer: Micron Technology Inc

Specifications of MT47H32M16HR-25E IT:GTR

• Lead Free Status / Rohs Status: Compliant

Automotive Temperature
General Notes
PDF: 09005aef82f1e6e2
512MbDDR2.pdf - Rev. S 7/11 EN
The automotive temperature (AT) option, if offered, has two simultaneous require-
ments: ambient temperature surrounding the device cannot be less than –40°C or great-
er than 105°C, and the case temperature cannot be less than –40°C or greater than
105°C. JEDEC specifications require the refresh rate to double when T
this also requires use of the high-temperature self refresh option. Additionally, ODT re-
sistance the input/output impedance and I
or > 85°C.
• The functionality and the timing specifications discussed in this data sheet are for the
• Throughout the data sheet, the various figures and text refer to DQs as “DQ.” The DQ
• A x16 device's DQ bus is comprised of two bytes. If only one of the bytes needs to be
• Complete functionality is described throughout the document, and any page or dia-
• Any specific requirement takes precedence over a general statement.
DLL-enabled mode of operation.
term is to be interpreted as any and all DQ collectively, unless specifically stated oth-
erwise. Additionally, the x16 is divided into 2 bytes: the lower byte and the upper byte.
For the lower byte (DQ[7:0]), DM refers to LDM and DQS refers to LDQS. For the up-
per byte (DQ[15:8]), DM refers to UDM and DQS refers to UDQS.
used, use the lower byte for data transfers and terminate the upper byte as noted:
– Connect UDQS to ground via 1k * resistor
– Connect UDQS# to V
– Connect UDM to V
– Connect DQ[15:8] individually to either V
*If ODT is used, 1k resistor should be changed to 4x that of the selected ODT.
gram may have been simplified to convey a topic and may not be inclusive of all re-
quirements.
DQ[15:8].
DD
DD
via 1k * resistor
via 1k * resistor
11
Micron Technology, Inc. reserves the right to change products or specifications without notice.
512Mb: x4, x8, x16 DDR2 SDRAM
DD
SS
values must be derated when T
or V
DD
via 1k * resistors, or float
Functional Description
‹ 2004 Micron Technology, Inc. All rights reserved.
C
exceeds 85°C;
C
is < 0°C