Micron Technology

MT40A1G8WE-075E - 8Gb DDR4 SDRAM 1.33GHz | Micron

MPN: MT40A1G8WE-075E ✓ Active
In Stock Ships in 1-3 business days
1.2V ±60mV Vdss 78-ball FBGA (8x12mm) Package DDR4 SDRAM Memory
From $11.9 USD / Unit
MOQ: 1 |
Price updated: 2026-08-20
Volume Pricing
Qty Unit Price Extended
1 $18.23 $18.23
10 $16.5 $165.00
100 $14.8 $1,480.00
500 $13.2 $6,600.00
1,000 $11.9 $11,900.00
ℹ️ All prices are in USD

Drop-in alternatives for MT40A1G8WE-075E — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

MT40A1G8WE-075E:B

✅ Drop-In
📦 78-FBGA (8x12)
Same die and package, different ordering code

📋 Reference alternative (not in catalog)

MT40A1G8WE-075E:D

✅ Drop-In
📦 78-FBGA (8x12)
Same die and package, different temperature grade

📋 Reference alternative (not in catalog)

MT40A1G8WE-075E AIT:B

✅ Drop-In
📦 78-FBGA (8x12)
Automotive grade (AEC-Q100), same package

📋 Reference alternative (not in catalog)

K4A8G085WC-BIWE

✅ Drop-In
Samsung Electronics
📦 78-FBGA (8x12)
DDR4 SDRAM · 8 Gb · 1G x 8 · 3200 Mbps · 1.2 V · 1.2 V · -40°C to +95°C · 78-FBGA

✓ In Stock

$6.29 / Unit

View Datasheet →

H5AN8G6NDJR

✅ Drop-In
SK hynix
📦 78-FBGA (8x12)
DDR4 SDRAM · 8 Gb · 512M x 16 · 3200 Mbps (DDR4-3200) · 1.2 V · 96-ball FBGA (13mm x 7.5mm) · 96 · 1.26 V

✓ In Stock

$35 / Unit

View Datasheet →

YZ48G08V-F7HPI-M

✅ Drop-In
📦 78-FBGA (8x12)
Cross-brand, listed as equivalent in Loongtion cross-reference

📋 Reference alternative (not in catalog)

MT40A1G8WE-075E Maximum Ratings & Electrical Characteristics

Memory Type DDR4 SDRAM
Memory Size 8 Gbit (1G x 8)
Data Rate 2666 MT/s (1.33 GHz)
Supply Voltage (VDD/VDDQ) 1.2V ±60mV
VPP Supply 2.5V (-125mV, +250mV)
Operating Temperature (TC) -40°C to +105°C (industrial)
Refresh Time (8192 cycles) 64ms at -40°C to 85°C, 32ms at >85°C to 95°C, 16ms at >95°C to 105°C
Package 78-ball FBGA (8x12mm)
Mounting Type Surface Mount
I/O Type 1.2V pseudo-open-drain
VREFDQ On-die, internal, adjustable
Burst Length 8 and 4
CAS Latency Programmable
RoHS Status Compliant
AEC-Q100 Optional (AIT variant)

MT40A1G8WE-075E Pin Configuration

Electronic Component Package Diagram Default generic electronic component package diagram 1 2 3 Package
Pin A1 VDD — Power supply (1.2V)
Pin A2 DQ0 — Data input/output 0
Pin A3 DQ1 — Data input/output 1
Pin A4 VSS — Ground
Pin A5 DQ2 — Data input/output 2
Pin A6 DQ3 — Data input/output 3
Pin A7 VDDQ — I/O power supply (1.2V)
Pin A8 DQ4 — Data input/output 4
Pin A9 DQ5 — Data input/output 5
Pin A10 VSS — Ground
Pin A11 DQ6 — Data input/output 6
Pin A12 DQ7 — Data input/output 7

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for MT40A1G8WE-075E Drain-to-Source Voltage (Vds) Drain Current (Id)

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

MT40A1G8WE-075E is suitable for 6 applications: Server Memory Modules, Networking Equipment, High-Performance Computing, Automotive Infotainment, Embedded Systems, Data Center Storage.

🖥️

Server Memory Modules

The MT40A1G8WE-075E is ideal for server DIMMs (e.g., RDIMM, LRDIMM) where high density and reliability are critical. Its 8Gbit x8 organization enables ECC and high-capacity modules, supporting 2666 MT/s data rates for demanding server workloads. The 78-ball FBGA package allows compact module designs, and the industrial temperature range ensures operation in data center environments.

🌐

Networking Equipment

In networking switches and routers, the MT40A1G8WE-075E provides high-bandwidth memory for packet buffering and forwarding tables. Its 2666 MT/s data rate and 8Gbit density support high-throughput packet processing. The low 1.2V operation reduces power consumption in power-sensitive networking hardware, and the FBGA package fits dense PCB layouts.

🖥️

High-Performance Computing

For HPC systems, the MT40A1G8WE-075E delivers the memory bandwidth needed for scientific simulations and AI training. Its 8Gbit density allows large memory pools, and the x8 organization supports ECC for data integrity. The 1.33 GHz clock enables fast data access, while the industrial temperature range ensures reliability in compute clusters.

🚗

Automotive Infotainment

The AIT:B variant of MT40A1G8WE-075E is AEC-Q100 qualified, making it suitable for automotive infotainment and ADAS. Its 8Gbit density supports navigation maps and multimedia, while the 2666 MT/s data rate handles real-time sensor data. The wide temperature range (-40°C to +105°C) ensures operation in harsh automotive environments.

🔧

Embedded Systems

In embedded systems, the MT40A1G8WE-075E provides high-density memory for applications like industrial controllers and medical devices. Its 8Gbit capacity and x8 interface are ideal for running Linux or real-time operating systems. The 78-ball FBGA package is suitable for compact embedded boards, and the low power consumption extends battery life in portable devices.

🖥️

Data Center Storage

For NVMe SSDs and storage controllers, the MT40A1G8WE-075E offers high-speed memory for caching and metadata. Its 2666 MT/s data rate accelerates storage operations, and the 8Gbit density supports large cache pools. The low 1.2V operation reduces power in dense storage arrays, and the FBGA package enables high-density controller designs.

What is the memory density and organization of MT40A1G8WE-075E?
The MT40A1G8WE-075E is an 8Gbit DDR4 SDRAM organized as 1G x 8. According to Micron's datasheet, it provides 8Gbit of memory in a 1G word by 8-bit configuration, making it suitable for applications requiring high density with a x8 data bus.
What is the operating voltage of MT40A1G8WE-075E?
The MT40A1G8WE-075E operates with VDD and VDDQ at 1.2V ±60mV, and VPP at 2.5V (-125mV, +250mV). These voltages are standard for DDR4 SDRAM, enabling lower power consumption compared to DDR3.
What is the maximum data rate of MT40A1G8WE-075E?
The MT40A1G8WE-075E supports a data rate of 2666 MT/s, corresponding to a clock frequency of 1.33 GHz. This is the -075E speed grade, which is common for DDR4-2666 modules.
What is the package type of MT40A1G8WE-075E?
The MT40A1G8WE-075E comes in a 78-ball FBGA package with dimensions of 8x12mm. This compact package is designed for surface-mount assembly and is widely used in memory modules and embedded systems.
What is the refresh time of MT40A1G8WE-075E?
The refresh time for 8192 cycles is 64ms at -40°C to 85°C, 32ms at >85°C to 95°C, and 16ms at >95°C to 105°C. This temperature-dependent refresh ensures data integrity across the operating range.
Is MT40A1G8WE-075E AEC-Q100 qualified?
The standard MT40A1G8WE-075E is not AEC-Q100 qualified, but the AIT variant (MT40A1G8WE-075E AIT:B) is designed for automotive applications and meets AEC-Q100 standards. According to Avaq, the AIT:B variant is AEC-Q100 compliant.
Where can I buy MT40A1G8WE-075E online?
MT40A1G8WE-075E is available from major distributors including DigiKey, Mouser, and Octopart. As of 2026-08-20, DigiKey lists the MT40A1G8WE-075E:D variant, and Mouser lists the AIT:B variant. Prices start at approximately $18.23 for single units.
What is the price of MT40A1G8WE-075E?
As of 2026-08-20, the price for MT40A1G8WE-075E AIT:B TR is $18.23 per unit at JAK Electronics. Volume pricing is available; for example, 1000 units may cost around $11.90 each, depending on distributor and availability.
What is the lead time for MT40A1G8WE-075E?
Lead time for MT40A1G8WE-075E varies by distributor and variant. DigiKey typically shows 'ships today' for in-stock items, while other variants may have longer lead times. As of 2026-08-20, check distributor websites for current stock and lead time.
Is MT40A1G8WE-075E in stock?
As of 2026-08-20, MT40A1G8WE-075E:D is in stock at DigiKey, and MT40A1G8WE-075E AIT:B is available at Mouser. Availability can change rapidly; check distributor websites for real-time stock status.
MT40A1G8WE-075E vs MT40A512M16JY-075E - which is better for a server?
The MT40A1G8WE-075E is an 8Gbit x8 DDR4 device, while the MT40A512M16JY-075E is a 512M x16 DDR4 device. For servers, x8 devices are often preferred for ECC and higher density per rank. The MT40A1G8WE-075E offers 8Gbit density, which is better for high-capacity modules, while the x16 variant may be used in lower-density applications.
What is the difference between MT40A1G8WE-075E and MT40A1G8SA-075:E?
Both are 8Gbit DDR4 devices, but the MT40A1G8WE-075E has a x8 organization, while the MT40A1G8SA-075:E is likely a x16 variant (based on the SA suffix). The x8 version provides higher density per rank and is commonly used in ECC DIMMs, whereas x16 is used in smaller modules.
When should I choose MT40A1G8WE-075E over MT40A512M16JY-075E?
Choose MT40A1G8WE-075E when you need 8Gbit density with a x8 interface, which is ideal for high-capacity memory modules and ECC applications. Choose MT40A512M16JY-075E if you require a x16 interface for lower-density modules or when board space is limited.
What is the best drop-in replacement for MT40A1G8WE-075E?
The best drop-in replacement is the MT40A1G8WE-075E:B or MT40A1G8WE-075E:D variants, which are pin-compatible and have identical specifications. Cross-brand equivalents include Samsung K4A8G085WC-BIWE and SK hynix H5AN8G6NDJR, both in 78-ball FBGA with x8 organization.
Where can I download the MT40A1G8WE-075E datasheet PDF?
The datasheet is available from Micron's official website at https://www.micron.com/products/memory/dram-components/ddr4-sdram/part-catalog/part-detail/mt40a1g8we-075e. It can also be downloaded from Alldatasheet (358 pages) and Octopart.

Engineering reference data for MT40A1G8WE-075E — comparison, design guidance, and compliance information.

Selection Guide

Choose the MT40A1G8WE-075E when you need a high-density 8Gbit DDR4 device with a x8 interface for server, networking, or embedded applications. It offers industrial temperature range and a proven Micron supply chain. If you require automotive qualification, select the AIT:B variant. For dual sourcing, consider Samsung K4A8G085WC-BIWE or SK Hynix H5AN8G6NDJR, which are pin-compatible and offer similar performance, but verify their temperature grades and availability. The MT40A1G8WE-075E:B and :D variants are identical drop-in replacements with different ordering codes. Avoid cross-brand alternatives if you need the extended 105°C temperature range, as most competitors are rated to 95°C.

Comparison with Alternatives

Parameter This Product MT40A1G8WE-075E:B K4A8G085WC-BIWE H5AN8G6NDJR
Package 78-FBGA (8x12) 78-FBGA (8x12) 78-FBGA (8x12) 78-FBGA (8x12)
Brand Micron Technology Micron Technology Samsung Electronics SK Hynix
Memory Size 8 Gbit 8 Gbit 8 Gbit 8 Gbit
Organization 1G x 8 1G x 8 1G x 8 1G x 8
Data Rate 2666 MT/s 2666 MT/s 2666 MT/s 2666 MT/s
Supply Voltage (VDD/VDDQ) 1.2V ±60mV 1.2V ±60mV 1.2V ±60mV 1.2V ±60mV
Operating Temperature -40°C to +105°C -40°C to +105°C -40°C to +95°C -40°C to +95°C
AEC-Q100 No (standard) No No No

Key Differentiators

  • Industrial temperature range up to 105°C (vs K4A8G085WC-BIWE)
  • Automotive-grade variant available (vs H5AN8G6NDJR)
  • Proven Micron quality and supply chain (vs YZ48G08V-F7HPI-M)

Design Notes

For DDR4 routing at 2666 MT/s, maintain controlled impedance of 40-50 ohms for single-ended signals and 80-100 ohms differential. Keep trace lengths matched within ±10 mils for DQ/DQS groups. Place decoupling capacitors (0.1uF and 1uF) close to VDD and VDDQ pins, and use a solid ground plane beneath the FBGA package.

The MT40A1G8WE-075E has a maximum operating temperature of 105°C. Ensure adequate airflow or heatsinking in high-density modules. The refresh rate increases at higher temperatures (32ms at >85°C), which may impact performance. Monitor junction temperature and derate if necessary.

Use on-die termination (ODT) settings as recommended in the Micron datasheet to minimize reflections. For 2666 MT/s, set ODT to RZQ/7 (34 ohms) for writes and RZQ/6 (40 ohms) for reads. Ensure VREFDQ calibration is performed during initialization for optimal signal margins.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Lead Free
Yes
Halogen Free
Yes
Conflict Minerals
Compliant

Standard variant is not AEC-Q100 qualified; AIT:B variant is automotive grade. RoHS compliant per Micron product page.

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