MT47H32M8BP-5E IT:B TR Micron Technology Inc, MT47H32M8BP-5E IT:B TR Datasheet - Page 110

• Manufacturer Part Number: MT47H32M8BP-5E IT:B TR
• Manufacturer: Micron Technology Inc
• Type: DDR2 SDRAMr

Specifications of MT47H32M8BP-5E IT:B TR

• Organization: 32Mx8
• Density: 256Mb
• Address Bus: 15b
• Access Time (max): 600ps
• Maximum Clock Rate: 400MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: FBGA
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 125mA
• Pin Count: 60
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Compliant

SELF REFRESH
PDF: 09005aef8117c187
256MbDDR2.pdf - Rev. M 7/09 EN
The SELF REFRESH command is initiated when CKE is LOW. The differential clock
should remain stable and meet
refresh mode. The procedure for exiting self refresh requires a sequence of commands.
First, the differential clock must be stable and meet
prior to CKE going back to HIGH. Once CKE is HIGH (
with three clock registrations), the DDR2 SDRAM must have NOP or DESELECT com-
mands issued for
ments is used to apply NOP or DESELECT commands for 200 clock cycles before
applying any other command.
t
XSNR. A simple algorithm for meeting both refresh and DLL require-
110
t
CKE specifications at least 1 ×
Micron Technology, Inc. reserves the right to change products or specifications without notice.
256Mb: x4, x8, x16 DDR2 SDRAM
t
CK specifications at least 1 ×
t
CKE [MIN] has been satisfied
©2003 Micron Technology, Inc. All rights reserved.
t
CK after entering self
SELF REFRESH
t
CK