MT48H8M32LFB5-75 IT:G TR Micron Technology Inc, MT48H8M32LFB5-75 IT:G TR Datasheet - Page 36
MT48H8M32LFB5-75 IT:G TR
Manufacturer Part Number
MT48H8M32LFB5-75 IT:G TR
Description
IC SDRAM 256MBIT 132MHZ 90VFBGA
Manufacturer
Micron Technology Inc
Datasheet
1.MT48H8M32LFB5-75H.pdf
(77 pages)
Specifications of MT48H8M32LFB5-75 IT:G TR
Format - Memory
RAM
Memory Type
Mobile SDRAM
Memory Size
256M (8Mx32)
Speed
132MHz
Interface
Parallel
Voltage - Supply
1.7 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Package / Case
90-VFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
557-1327-2
- Current page: 36 of 77
- Download datasheet (4Mb)
Concurrent Auto Precharge
READ with Auto Precharge
Figure 27:
PDF:09005aef8219eeeb/Source: 09005aef8219eedd
256mb_x16_sdram_y36m_1.fm - Rev G 6/09 EN
Clock Suspend During WRITE Burst
Note:
1. Interrupted by a READ (with or without auto precharge): A READ to bank m will inter-
2. Interrupted by a WRITE (with or without auto precharge): A WRITE to bank m will
An access command (READ or WRITE) to a second bank while an access command with
auto precharge enabled on a first bank is executing is not allowed by SDRAM, unless the
SDRAM supports concurrent auto precharge. Micron SDRAM support concurrent auto
precharge. Four cases where concurrent auto precharge occurs are defined in the “READ
with Auto Precharge” and “WRITE with Auto Precharge” sections.
COMMAND
INTERNAL
ADDRESS
rupt a READ on bank n, CL later. The precharge to bank n will begin when the READ
to bank m is registered (see Figure 29 on page 37).
interrupt a READ on bank n when registered. DQM should be used two clocks prior to
the WRITE command to prevent bus contention. The precharge to bank n will begin
when the WRITE to bank m is registered (see Figure 30 on page 38).
CLOCK
For this example, BL = 4 or greater, and DM is LOW.
CLK
CKE
D
IN
NOP
T0
WRITE
BANK,
COL n
T1
D
n
IN
T2
36
T3
Micron Technology, Inc., reserves the right to change products or specifications without notice.
NOP
n + 1
T4
D
IN
256Mb: x16, x32 Mobile SDRAM
DON’T CARE
T5
n + 2
NOP
D
IN
©2006 Micron Technology, Inc. All rights reserved.
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