MT47H256M8HG-3:A – DDR2 SDRAM – Micron

Micron MT47H256M8HG-3:A is a 2Gb DDR2 SDRAM organized as 256 Meg x 8 (DDR2-667, -3 speed grade) in a 60-ball FBGA package. Available now for RFQ from Pacific Component Xchange.

The Micron MT47H256M8HG-3:A is a 2Gb DDR2 SDRAM device from Micron’s MT47H family, organized as 256 Meg x 8 (32 Meg x 8 x 8 banks). It operates at a single +1.8V supply with JEDEC-standard 1.8V SSTL_18-compatible I/O, and carries the -3 speed grade rated at t_CK = 3.0ns, CL = 5 (DDR2-667). The “HG” package code designates a Pb-free 60-ball FBGA (11.5mm x 14mm, Rev. A) for the x4/x8 organization, and the “:A” suffix indicates the device revision. With no IT suffix in the part number, this device carries the commercial operating temperature range (0°C ≤ T_C ≤ +85°C).

Built on a 4n-bit prefetch architecture with eight internal banks for concurrent operation, the device features differential data strobes (DQS/DQS#), an optional duplicate output strobe (RDQS) for x8, on-die termination (ODT), posted CAS additive latency (AL), programmable CAS latency and burst lengths (4 or 8), and a DLL to align DQ and DQS transitions with the clock.

Key Features

• 2Gb DDR2 SDRAM, organized 256 Meg x 8 (32 Meg x 8 x 8 banks)
• V_DD = V_DDQ = +1.8V ±0.1V; JEDEC-standard 1.8V I/O (SSTL_18-compatible)
• Speed grade -3: t_CK = 3.0ns, CL = 5 (DDR2-667); per datasheet also supports CL = 3 @ 400 MHz and CL = 4 @ 533 MHz
• 8 internal banks; row address A[14:0] (32K), column address A[9:0] (1K), bank address BA[2:0] (8)
• 4n-bit prefetch architecture; programmable burst length 4 or 8
• Differential data strobe (DQS, DQS#); duplicate output strobe (RDQS) option for x8
• On-die termination (ODT); posted CAS additive latency (AL); DLL for DQ/DQS alignment
• 64ms, 8192-cycle refresh
• 60-ball Pb-free FBGA package, 11.5mm x 14mm (package code HG, Rev. A)
• Commercial temperature range, 0°C ≤ T_C ≤ +85°C
• RoHS-compliant

Applications

• Embedded and industrial computing systems
• Networking and telecom line cards
• Set-top boxes and digital media devices
• Legacy server and storage controllers
• Test, measurement, and instrumentation equipment
• Long-lifecycle systems requiring DDR2-667 x8 memory

Why Source MT47H256M8HG-3:A from Pacific Component Xchange

The MT47H256M8HG-3:A is an obsolete DDR2 SDRAM with little to no authorized-distributor availability, making it difficult to source through conventional channels. Pacific Component Xchange is an independent distributor specializing in hard-to-find, end-of-life, and obsolete memory. We maintain stock of this device and support legacy designs and end-of-life builds that still depend on it.

Every order is backed by our commitment to authenticity, traceability, and quality inspection to guard against counterfeit and substandard parts. We ship globally and offer flexible quantities. This is a Request-For-Quote item — contact Pacific Component Xchange today to request a quote on MT47H256M8HG-3:A and secure the inventory your project requires.