MT47H16M16BG-3ITB Datasheet, PDF (1/129 Pages) Micron Technology – 256Mb: x4, x8, x16 DDR2 SDRAM

256Mb: x4, x8, x16 DDR2 SDRAM
Features
DDR2 SDRAM
MT47H64M4 – 16 Meg x 4 x 4 banks
MT47H32M8 – 8 Meg x 8 x 4 banks
MT47H16M16 – 4 Meg x 16 x 4 banks
Features
• V_DD = 1.8V ±0.1V, V_DDQ = 1.8V ±0.1V
• JEDEC-standard 1.8V I/O (SSTL_18-compatible)
• Differential data strobe (DQS, DQS#) option
• 4n-bit prefetch architecture
• Duplicate output strobe (RDQS) option for x8
• DLL to align DQ and DQS transitions with CK
• 4 internal banks for concurrent operation
• Programmable CAS latency (CL)
• Posted CAS additive latency (AL)
• WRITE latency = READ latency - 1 ^tCK
• Selectable burst lengths (BL): 4 or 8
• Adjustable data-output drive strength
• 64ms, 8192-cycle refresh
• On-die termination (ODT)
• Industrial temperature (IT) option
• Automotive temperature (AT) option
• RoHS-compliant
• Supports JEDEC clock jitter specification
Options¹
• Configuration
– 64 Meg x 4 (16 Meg x 4 x 4 banks)
– 32 Meg x 8 (8 Meg x 8 x 4 banks)
– 16 Meg x 16 (4 Meg x 16 x 4 banks)
• FBGA package (Pb-free)
– 60-ball FBGA (8mm x 12mm) x4, x8
– 84-ball FBGA (8mm x 14mm) x16
• FBGA package (lead solder)
– 60-ball FBGA (8mm x 12mm) x4, x8
– 84-ball FBGA (8mm x 14mm) x16
• Timing – cycle time
– 3.0ns @ CL = 5 (DDR2-667)
– 3.75ns @ CL = 4 (DDR2-533)
– 5.0ns @ CL = 3 (DDR2-400)
• Self refresh
– Standard
– Low-power
• Operating temperature
– Commercial (0°C ื T_C ื +85°C)
– Industrial (–40°C ื T_C ื +95°C;
–40°C ื T_A ื +85°C)
– Automotive (–40°C ื T_C, T_A ื +105°C)
• Revision
Marking
64M4
32M8
16M16
BP
BG
FP
FG
-3
-37E
-5E
None
L
None
IT
AT
:B
Note:
1. Not all options listed can be combined to
define an offered product. Use the Part
Catalog Search on www.micron.com for
product offerings and availability.
Table 1: Key Timing Parameters
Speed Grade
-3
-37E
-5E
CL = 3
400
400
400
Data Rate (MT/s)
CL = 4
533
533
400
CL = 5
667
n/a
n/a
t_{RC (ns)}
55
55
55
PDF: 09005aef8117c187
256MbDDR2.pdf - Rev. N 7/11 EN
1
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‹ 2003 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.