Micron Technology

MT25QL256ABA8E12-0AUT - 256Mb SPI NOR Flash 133MHz | Micron

MPN: MT25QL256ABA8E12-0AUT βœ“ Active
In Stock Ships in 1-3 business days
2.7 V Vdss 24-T-PBGA (6x8 mm) Package 133 MHz Speed NOR Flash, Serial (SPI multiple I/O) Memory
From $12.5 USD / Unit
MOQ: 1 |
Price updated: 2026-09-01
Volume Pricing
Qty Unit Price Extended
1 $17.63 $17.63
10 $16.2 $162.00
100 $14.85 $1,485.00
500 $13.6 $6,800.00
1,000 $12.5 $12,500.00
ℹ️ All prices are in USD

Drop-in alternatives for MT25QL256ABA8E12-0AUT β€” same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool β€” Select alternative parts for side-by-side comparison:

MT25QL256ABA8E12-0AAT

βœ… Drop-In
πŸ“¦ 24-T-PBGA (6x8)
same die and package, industrial temperature -40C to +85C vs -40C to +125C

πŸ“‹ Reference alternative (not in catalog)

MT25QL512ABB8E12-0AUT

βœ… Drop-In
Micron Technology
πŸ“¦ 24-T-PBGA (6x8)
NOR Flash, Serial Β· 512 Mbit (64 MB) Β· SPI - Quad I/O Β· 133 MHz Β· 3 V class Β· -40C and above (AUT automotive option) Β· MT25Q Β· RW300

βœ“ In Stock

$10.55 / Unit

View Datasheet β†’

W25Q256JVEIQ

βœ… Drop-In
πŸ“¦ 24-TFBGA (8x6)
Winbond 256 Mb quad SPI in 24-ball BGA; command-set and ball-map verification required vs MT25Q; industrial grade

πŸ“‹ Reference alternative (not in catalog)

MX25L25645GZ2I-10G

βœ… Drop-In
πŸ“¦ WSON-8 / BGA options
Macronix 256 Mb 3V quad SPI equivalent per distributor cross-reference; package and command-set differences require layout check

πŸ“‹ Reference alternative (not in catalog)

S25FL256SAGNFI000

βœ… Drop-In
πŸ“¦ 24-ball BGA
Infineon (Cypress/Spansion) 256 Mb quad SPI NOR, automotive-oriented family; different command set and ball map

πŸ“‹ Reference alternative (not in catalog)

MT25QL256ABA8E12-0AUT Maximum Ratings & Electrical Characteristics

Memory Type NOR Flash, Serial (SPI multiple I/O)
Density 256 Mbit (32 MB)
Organization x1 / x2 / x4 (single, dual, quad I/O)
Interface SPI - Quad I/O
Maximum Clock Frequency 133 MHz
Clock Cycle Time 5 ns
Supply Voltage - Minimum 2.7 V
Supply Voltage - Nominal 3 V
Supply Voltage - Maximum 3.6 V
Operating Temperature -40C to +125C
Package 24-T-PBGA (6x8 mm)
FBGA Code RW326
Qualification AEC-Q100 (automotive)
Mounting Type Surface Mount (BGA)
Write Protection Hardware, software, and absolute write protection
Power-on Reset Protection Yes
RoHS Status Compliant

MT25QL256ABA8E12-0AUT 24-t-pbga (6x8 mm) Pin Configuration Guide

Complete pinout information for MT25QL256ABA8E12-0AUT (24-t-pbga (6x8 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

24-t-pbga (6x8 mm) package pinout diagram for MT25QL256ABA8E12-0AUT

No detailed pinout data available for MT25QL256ABA8E12-0AUT.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for MT25QL256ABA8E12-0AUT 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

MT25QL256ABA8E12-0AUT is suitable for 6 applications: Automotive ECU Code Storage, FPGA Configuration and Boot Memory, Industrial Networking and Switch Equipment, ADAS Sensor Module Storage, Set-Top Box and Display Firmware, Test and Measurement Instrument Boot Memory.

πŸš—

Automotive ECU Code Storage

The MT25QL256ABA8E12-0AUT fits automotive electronic control units because it combines AEC-Q100 qualification with a -40C to +125C operating range, covering under-hood and powertrain ambient conditions that defeat industrial-grade flash. Its 256 Mb (32 MB) density stores application firmware, calibration data, and OTA update images for engine, chassis, and body controllers. Connected to the ECU microcontroller over quad SPI at 133 MHz, it delivers fast boot code fetch with 5 ns clock-cycle timing, reducing power-on latency. Hardware and software write protection features prevent corruption of the boot image during brown-out or EMI events, while power-on reset protection guarantees defined operation during vehicle cranking voltage dips.

πŸ”§

FPGA Configuration and Boot Memory

Field-programmable gate arrays require a fast, reliable non-volatile source for configuration bitstreams, and the MT25QL256ABA8E12-0AUT matches this need with 256 Mb density - sufficient for large bitstreams from mid-range devices - and a 133 MHz quad I/O read path that minimizes configuration time after power-on. The wide -40C to +125C range suits defense, aerospace, and industrial systems where FPGAs operate in uncontrolled environments. The quad output fast-read commands let the FPGA configuration master saturate its bitstream loader without custom glue logic. Design consideration: verify 4-byte addressing support since 256 Mb exceeds the 16 MB 3-byte address boundary. Micron serial NOR is a proven companion for Microsemi RTAX and PolarFire-class designs.

🏭

Industrial Networking and Switch Equipment

Industrial Ethernet switches, routers, and PLC communication modules use serial NOR flash as boot and firmware storage, and the MT25QL256ABA8E12-0AUT suits this role with 32 MB capacity for firmware images plus dual-bank OTA layouts. The 2.7 V to 3.6 V supply tolerance absorbs rail variation on noisy industrial backplanes, while the extended -40C to +125C rating covers unventilated cabinets and outdoor enclosures beyond the +85C ceiling of industrial-grade parts. Quad SPI reads at 133 MHz allow the host CPU to execute-in-place critical boot code before loading the main image to RAM, cutting startup time. Absolute write protection can lock the bootloader sector against accidental or malicious overwrites in fielded equipment.

πŸŽ₯

ADAS Sensor Module Storage

Advanced driver assistance sensor modules - cameras, radar, and lidar - boot their processing SoC from non-volatile code memory that must survive the automotive thermal envelope, making the AEC-Q100 qualified MT25QL256ABA8E12-0AUT a natural fit. Its 256 Mb capacity stores the module's boot loader, signal-processing firmware, and calibration tables, and quad I/O reads at 133 MHz help meet the fast time-to-first-frame requirement after vehicle power-on. Hardware write protection secures calibration data against corruption across service cycles. Because ADAS modules place memory close to high-speed digital circuitry, the BGA package's short ball interconnects help maintain signal integrity on the SPI bus; layout discipline with length-matched quad-I/O traces is recommended.

πŸ“Ί

Set-Top Box and Display Firmware

Set-top boxes, smart displays, and digital signage products store boot firmware and settings in serial NOR flash, and the MT25QL256ABA8E12-0AUT provides 32 MB of reliable storage with the quad SPI bandwidth needed for quick boot of Linux-based firmware loaders. The 3 V supply class integrates directly with mainstream SoC power trees, and the wide -40C to +125C range gives margin for enclosed, passively cooled consumer and commercial hardware. Power-on reset protection ensures the device never outputs corrupted data during brown-outs caused by shared power supplies. In dual-image update schemes, the 32 MB capacity comfortably holds a golden image plus a downloaded update image with room for settings partitions.

πŸ–₯️

Test and Measurement Instrument Boot Memory

Bench and portable test instruments - oscilloscopes, logic analyzers, and signal generators - boot their processing platform from serial NOR flash and store instrument calibration constants there as well. The MT25QL256ABA8E12-0AUT serves this role with 256 Mb density, 133 MHz quad SPI reads for fast instrument startup, and a -40C to +125C range that covers both laboratory and vehicle-mounted field instruments. The device's software and absolute write-protection mechanisms let manufacturers lock the calibration sector so field firmware updates cannot erase factory calibration. The 2.7 V to 3.6 V supply window tolerates the small rail sag that occurs when high-power instrument subsystems switch on during boot sequencing.

What is the MT25QL256ABA8E12-0AUT?
The MT25QL256ABA8E12-0AUT is a Micron MT25Q series 256 Mbit (32 MB) serial NOR flash memory with SPI multiple I/O (single, dual, quad) support. According to DigiKey and Micron product listings, it operates at up to 133 MHz with a 5 ns clock period, runs from a 2.7 V to 3.6 V supply, and is rated from -40C to +125C in a 24-ball T-PBGA (6x8) package with FBGA code RW326. It is AEC-Q100 qualified for automotive applications.
What is the price of MT25QL256ABA8E12-0AUT?
As of 2026-09-01, the unit price for MT25QL256ABA8E12-0AUT starts at approximately $17.63 at quantity 1 on LCSC, with volume discounts typically bringing the per-unit cost lower at 100 pieces or more. Octopart lists pricing from 6 distributors for this part. Prices vary by distributor stock position and demand; consult the pricing table on this page for current tiered quotes in USD.
Where to buy MT25QL256ABA8E12-0AUT online?
MT25QL256ABA8E12-0AUT can be purchased from DigiKey, Mouser, LCSC, and other authorized Micron distributors, all of which list the part with stock and datasheet access as of 2026-09-01. XAIPART also offers this part with tiered pricing starting at 1-piece quantities. Because LCSC showed only limited stock (2 pieces at one point), confirm availability across distributors before committing to a production build schedule.
Is MT25QL256ABA8E12-0AUT in stock?
Stock status for MT25QL256ABA8E12-0AUT fluctuates by distributor; LCSC has shown limited on-hand quantity (for example, 2 pieces at one listing), while DigiKey and Mouser list the part with buy-now/ships-today options. As of 2026-09-01, availability exists across at least 6 distributors per Octopart aggregation. For volume orders, request lead-time confirmation from your distributor since automotive-graded NOR flash can carry allocation risk.
What is the operating temperature range of MT25QL256ABA8E12-0AUT?
The MT25QL256ABA8E12-0AUT operates from -40C to +125C according to the Micron part catalog and datasheet summaries. This automotive temperature grade, combined with AEC-Q100 qualification, makes the device suitable for under-hood electronic control units, ADAS sensor modules, and other automotive environments where ambient temperatures exceed the -40C to +85C range of industrial-grade variants.
What is the difference between MT25QL256ABA8E12-0AUT and MT25QL256ABA8E12-0AAT?
The key difference is the operating temperature range: the -0AUT suffix is rated -40C to +125C (automotive grade), while the -0AAT suffix is rated -40C to +85C (industrial grade). Both share the same 256 Mb density, 133 MHz quad SPI interface, 2.7 V to 3.6 V supply, and the same 24-ball T-PBGA package, so they are footprint-compatible; the -0AUT is the correct choice for automotive or high-temperature applications.
What is the best drop-in replacement for MT25QL256ABA8E12-0AUT?
The closest same-brand drop-in is Micron MT25QL256ABA8E12-0AAT, identical except for the -40C to +85C industrial temperature range - use it only if your system never exceeds +85C. For automotive temperature requirements, the MT25QL512ABB8E12-0AUT doubles density to 512 Mb in the same package footprint (requires controller support for the larger address space). Cross-brand options such as Winbond W25Q256JV and Macronix MX25L25645G equivalents exist functionally but require verification of ball-map and command-set compatibility before PCB substitution.
Is MT25QL256ABA8E12-0AUT the same as Winbond W25Q256JV?
No - they are functional equivalents, not identical parts. Both are 256 Mb quad SPI NOR flash memories in the 3 V class, but the Micron MT25Q uses Micron's proprietary command set extensions and the -0AUT is AEC-Q100 automotive qualified in a 24-ball T-PBGA. Winbond's W25Q256JV family command set is largely SPI-standard but byte addressing (3-byte vs 4-byte modes) and extended commands differ; verify the host controller driver before substitution.
What is the best Winbond equivalent for MT25QL256ABA8E12-0AUT?
The best Winbond equivalent for MT25QL256ABA8E12-0AUT is the W25Q256JV series in a 24-ball BGA package option. It matches the 256 Mb density, 3 V supply class, and quad SPI read capability. However, Winbond's standard W25Q256JV variants are generally not AEC-Q100 qualified in the same temperature window, so for automotive designs requiring -40C to +125C and AEC-Q100, the Micron -0AUT or an automotive-qualified Winbond W25Q256JW-IM equivalent should be verified against the datasheet before design-in.
MT25QL256ABA8E12-0AUT vs S25FL256S (Infineon/Cypress) - which is better?
For an automotive design already qualified around the Micron MT25Q command set, the MT25QL256ABA8E12-0AUT is the better choice because it is AEC-Q100 qualified at -40C to +125C with proven automotive design-in. The Infineon (formerly Cypress/Spansion) S25FL256S offers comparable 256 Mb quad SPI density and performance and is also automotive-oriented, but ball-map, package dimensions, and command sets differ, so it is a board-level second source rather than a drop-in replacement.
When should I choose MT25QL256ABA8E12-0AUT over industrial-grade alternatives?
Choose the MT25QL256ABA8E12-0AUT whenever the end product is automotive, must survive ambient temperatures above +85C, or requires AEC-Q100 documentation for customer audits. If your product is strictly industrial or consumer and never exceeds +85C, the lower-cost Micron MT25QL256ABA8E12-0AAT (industrial grade, same footprint) saves cost with identical electrical performance. The rule of thumb: pay the automotive premium only when the temperature range or qualification requirement genuinely demands it.
Where to download the MT25QL256ABA8E12-0AUT datasheet PDF?
The MT25QL256ABA8E12-0AUT datasheet PDF is available from the official Micron part-detail page at micron.com under the MT25Q serial NOR flash product catalog, and is also mirrored on distributor sites such as DigiKey, Mouser, LCSC, and Octopart. The datasheet covers the full MT25Q 256 Mb family, including command sets for single, dual, and quad I/O operation, AC/DC characteristics at 133 MHz, and the 24-ball T-PBGA package mechanical drawing. Always download from Micron or an authorized distributor to guarantee the latest revision.
Where to find the MT25QL256ABA8E12-0AUT pinout (ball map)?
The MT25QL256ABA8E12-0AUT ball map is provided in the Micron MT25Q 256 Mb datasheet in the package section for the 24-ball T-PBGA (6x8 mm), identified by FBGA code RW326. The ball map assigns SPI signals - chip select, serial clock, serial data I/O 0-3, VCC, VSS, and connection/don't-care balls - across the 6x8 grid. Because BGA ball assignments are easily corrupted when copied informally, always verify the signal assignment against the datasheet mechanical drawing rather than third-party listings.
What are the key specifications of MT25QL256ABA8E12-0AUT that engineers should know?
Key specifications: 256 Mbit (32 MB) serial NOR flash; SPI single/dual/quad I/O interface; 133 MHz maximum clock (5 ns cycle time); supply voltage 2.7 V to 3.6 V (3 V nominal); operating temperature -40C to +125C; AEC-Q100 automotive qualification; 24-ball T-PBGA (6x8 mm) package, FBGA code RW326. Additional features include hardware, software, and absolute write protection plus power-on reset protection, making it a complete automotive-grade boot memory solution.
Can MT25QL256ABA8E12-0AUT be used for FPGA configuration storage?
Yes - the MT25QL256ABA8E12-0AUT is well suited to FPGA configuration and boot storage. Its 256 Mb density comfortably holds bitstreams for mid-range FPGAs, and the 133 MHz quad I/O interface provides the fast read bandwidth that configuration controllers need to minimize power-on configuration time. Micron serial NOR flash is a common companion for Microsemi/Microchip RTG4 and PolarFire-class devices as well as Xilinx and Intel FPGA families; verify your FPGA configuration master supports MT25Q command timing and 4-byte addressing.
Does MT25QL256ABA8E12-0AUT require a heatsink or special thermal design?
No - a serial NOR flash at 3 V and 133 MHz typically dissipates only tens of milliwatts in active read, so no heatsink or thermal management is required even at +125C ambient. The critical thermal consideration is board-level: the 24-ball T-PBGA must be reflowed per JEDEC profile on a correct land pattern, and the +125C rating already covers the worst-case ambient in automotive designs. Focus design effort on signal integrity of the SPI lines and clean power decoupling rather than cooling.

Engineering reference data for MT25QL256ABA8E12-0AUT β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the MT25QL256ABA8E12-0AUT when your design is automotive or otherwise exceeds +85C and requires AEC-Q100 documentation - it is Micron's 256 Mb, 133 MHz quad SPI NOR in the 24-ball T-PBGA with full write protection. If your application never exceeds +85C, select the pin-identical MT25QL256ABA8E12-0AAT industrial variant to save cost. If 32 MB is insufficient, the MT25QL512ABB8E12-0AUT doubles density in the same footprint with the same automotive grade. Cross-brand second sources - Winbond W25Q256JV, Macronix MX25L25645G, and Infineon S25FL256S equivalents - offer functional density and speed parity but differ in command set, ball map, and qualification; treat them as board-level redesign candidates, not drop-ins. For aerospace and defense FPGA boot storage, pair this flash with RTAX or ProASIC3 devices already qualified in your flow.

Comparison with Alternatives

Parameter This Product MT25QL256ABA8E12-0AAT MT25QL512ABB8E12-0AUT W25Q256JVEIQ S25FL256SAGNFI000
Package 24-T-PBGA (6x8) 24-T-PBGA (6x8) - same 24-T-PBGA (6x8) - same 24-TFBGA (8x6) - verify land pattern 24-ball BGA - verify footprint
Brand Micron Technology Micron Technology Micron Technology Microchip Technology Infineon
Density 256 Mbit (32 MB) 256 Mbit (32 MB) 512 Mbit (64 MB) 256 Mbit (32 MB) 256 Mbit (32 MB)
Max Clock Frequency 133 MHz 133 MHz 133 MHz [DATA_NEEDED] [DATA_NEEDED]
Supply Voltage 2.7 V to 3.6 V 2.7 V to 3.6 V 2.7 V to 3.6 V 2.7 V to 3.6 V 2.7 V to 3.6 V
Operating Temperature -40C to +125C -40C to +85C -40C to +125C -40C to +85C [DATA_NEEDED]
AEC-Q100 Automotive Qualification Qualified Industrial grade Qualified No (verify W25Q256JW-IM for automotive) Automotive-oriented family
Write Protection Features Hardware + software + absolute, power-on reset Hardware + software + absolute, power-on reset Hardware + software + absolute, power-on reset Software + hardware WP pin [DATA_NEEDED]

Key Differentiators

  • Automotive AEC-Q100 qualification with +125C rating (vs MT25QL256ABA8E12-0AAT)
  • 256 Mb density at 133 MHz quad SPI in compact 6x8 BGA (vs MT25QL512ABB8E12-0AUT)
  • Complete write-protection stack including absolute write protection (vs W25Q256JVEIQ)

Design Notes

The 24-ball T-PBGA (6x8 mm) requires a dedicated land pattern per the Micron package drawing (FBGA code RW326). Lay out the four quad-I/O SPI signals as length-matched traces where possible, keep each under 10 cm if feasible, and route CS# away from clock to minimize crosstalk-induced false chip selects. Include series termination (22-33 ohm) on the clock at the driver for 133 MHz operation. Rework requires BGA rework station and X-ray inspection - plan test points on the SPI bus before production to allow in-circuit verification.

Decouple VCC with at least one 100 nF ceramic capacitor placed within 2 mm of the BGA ball plus one 4.7-10 uF bulk capacitor per device. During page programming, flash devices draw short current bursts; insufficient decoupling can droop the rail and corrupt adjacent logic. Ensure the 3.3 V rail powers up monotonically within the datasheet ramp-rate requirement - the power-on reset protection helps, but a slow, non-monotonic ramp can still leave the device in an undefined state at first access.

256 Mb exceeds the 16 MB 3-byte addressing limit; confirm your host controller enables 4-byte addressing (or uses the extended address register) before erase/program operations, especially when second-sourcing to alternatives with different default address modes. Never assume the -0AAT (industrial) variant matches the -0AUT's +125C rating - using the wrong grade in an automotive application is a silent reliability failure. Verify command-set differences against MT25Q documentation before substituting Winbond, Macronix, or Infineon parts.

Compliance Information

RoHS
Compliant
REACH
Unknown
AEC-Q100
Qualified
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Unknown

RoHS compliant per distributor listings; AEC-Q100 qualification and -40C to +125C range cited in datasheet summaries and Micron part catalog. REACH and halogen-free status not stated in provided data.

Data verified on: 2026-09-01 β€” data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Micron Technology MT25QL256ABA8E12-0AUT MT25QL256ABA8E12-0AAT MT25QL512ABB8E12-0AUT W25Q256JV MX25L25645G S25FL256S serial NOR flash NOR flash memory non-volatile memory quad SPI SPI - Quad I/O AEC-Q100 RoHS 24-T-PBGA FBGA T-PBGA (6x8 mm) execute-in-place FPGA configuration automotive ECU output clock frequency 133 MHz 4-byte addressing write protection power-on reset
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