MT25QL128ABB8E12-CAUT - 128Mb SPI Quad I/O NOR Flash | Micron
MPN: MT25QL128ABB8E12-CAUT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.9 | $4.90 |
| 10 | $4.65 | $46.50 |
| 100 | $4.25 | $425.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.6 | $3,600.00 |
Drop-in alternatives for MT25QL128ABB8E12-CAUT — 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:
MT25QL128ABB8E12-0AUT
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View Datasheet →MT25QL256BBB8E12-CAUT
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View Datasheet →MT25QL512ABB8E12-0AUT
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View Datasheet →MT25QL128ABB1EW7-CAUT
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View Datasheet →MT25QL128ABB8E12-CAUT Maximum Ratings & Electrical Characteristics
| Memory Type | Flash - NOR Memory IC |
| Memory Capacity | 128 Mbit (16 MB) |
| Interface | SPI - Quad I/O |
| Max Clock Frequency | 133 MHz |
| Access Time | 5 ns |
| Memory Organization | x1 / x2 / x4 |
| Supply Voltage | 2.7 V to 3.6 V (3V class) |
| Operating Temperature | -40C to +125C (automotive grade, CAUT suffix) |
| Package | 24-T-PBGA (6x8 mm) |
| Mounting Type | Surface Mount |
| Series | MT25Q (successor to N25Q) |
| FBGA Code (family variant) | RW314 (MT25QL128ABB1EW7-CAUT per datasheet addendum) |
| Product Longevity Program | No (per datasheet addendum) |
MT25QL128ABB8E12-CAUT 24-t-pbga (6x8 mm) Pin Configuration Guide
Complete pinout information for MT25QL128ABB8E12-CAUT (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.
No detailed pinout data available for MT25QL128ABB8E12-CAUT.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
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
MT25QL128ABB8E12-CAUT is suitable for 6 applications: Automotive Telematics and Infotainment Boot Memory, FPGA Configuration Memory, Industrial PLC and Motor Drive Firmware Storage, Networking Equipment Boot and Firmware, Secure Firmware Storage with OTP, Battery-Powered and Low-Power Data Loggers.
Automotive Telematics and Infotainment Boot Memory
The MT25QL128ABB8E12-CAUT fits automotive telematics and infotainment boot storage because its CAUT suffix specifies the -40C to +125C automotive temperature grade required in vehicle environments, while the 128Mb density holds bootloader, firmware, and calibration data with headroom. The 133 MHz Quad I/O interface reduces boot latency: at up to 532 Mbps effective read throughput in quad mode, a multi-megabyte application image loads in tens of milliseconds, supporting fast ignition-to-operation timing targets. In the circuit, the device connects to the SoC or application processor via dedicated Quad SPI pins with 33-ohm series resistors on CLK and DQ lines to control reflections in the electrically noisy 12V-vehicle environment. Unlike eMMC boot solutions, serial NOR provides deterministic random access needed for XIP or early boot code. Trade-off: NOR costs more per bit than NAND, so use it only for code, not bulk media storage.
Recommended
FPGA Configuration Memory
For FPGA bitstream storage, the MT25QL128ABB8E12-CAUT aligns well: a 128Mb (16 MB) capacity comfortably holds bitstreams for mid-range FPGAs, and the 133 MHz Quad SPI interface shortens configuration time relative to 33-50 MHz single-bit SPI flash - quad-mode reads deliver up to four times the configuration bandwidth, reducing power-on-to-operational latency. The -40C to +125C CAUT grade extends FPGA platforms into automotive and industrial deployments where commercial-grade memories fail. In a typical Xilinx or Intel chain, the FPGA's configuration controller drives S#, SCLK, DQ0-DQ3, and reads the bitstream at power-up after the MT25Q supply rails stabilize; the enhanced volatile configuration register must be programmed (or nonvolatile defaults set) to enable quad output mode. Keep CLK trace length matched to DQ lines and place 100 nF decoupling at each supply ball. Verify the 24-T-PBGA footprint against the FPGA reference design before layout release.
Recommended
Industrial PLC and Motor Drive Firmware Storage
Industrial programmable logic controllers and motor drives require firmware that survives power cycles across wide ambient swings; the MT25QL128ABB8E12-CAUT addresses this with -40C to +125C operation (exceeding the -40C to +85C industrial norm for margin near drives and heat sinks) and nonvolatile NOR storage with byte-level random read access. The 128Mb capacity supports dual-bank firmware schemes for field OTA updates: at 16 MB total, two full application images plus a small parameter sector map fit with room to spare, letting the controller validate a new image before committing. The 133 MHz Quad SPI bus keeps update and verification windows short. Design caution: sector erase times in the 100 ms-class range should be scheduled outside real-time control loops, and write-protect signaling should gate parameter sectors against brownout corruption. Decouple VCC with 100 nF close to the package.
Recommended
Networking Equipment Boot and Firmware
Routers, switches, and gateway platforms conventionally boot from serial NOR flash, and the MT25QL128ABB8E12-CAUT fits this role with 128Mb capacity for bootloader plus compressed OS images, and a 133 MHz Quad I/O interface delivering up to 532 Mbps read throughput for fast boot in always-on network hardware. The 5 ns access time cited by distributors reflects fast random reads for table lookups staged from flash. In the power chain, the 3V-class supply (2.7V to 3.6V) is typically derived from the system 3.3V rail with a ferrite bead and 100 nF/10 uF decoupling network. Network equipment often runs 24/7, so the MT25Q family's endurance specification and Micron's product-change discipline matter for long-term deployments; note the datasheet addendum states this CAUT variant is not in the Product Longevity Program, so lifecycle planning should include a second-source or family-migration strategy for multi-year designs.
Recommended
Secure Firmware Storage with OTP
The MT25Q architecture adds security and OTP features relative to the earlier N25Q generation, including a 64-byte one-time-programmable area and advanced security instructions, which suit secure-boot anchor storage: device-unique identifiers or hash roots can be written once and locked, resisting tampering better than ordinary flash sectors. Combined with the 128Mb main array, a design can hold both the secure anchor and the full firmware in one 24-T-PBGA 6x8 package, saving board area versus a separate security EEPROM. The automotive CAUT grade extends these protections into vehicle ECUs where secure boot is increasingly mandated. Design practice: write OTP contents during production programming at controlled supply (2.7V to 3.6V), verify readback, and lock via the security-register protection instruction; thereafter treat OTP as read-only in firmware. Document the MT25Q security command set in your BSP, since it differs slightly from legacy N25Q tooling.
Recommended
Battery-Powered and Low-Power Data Loggers
Data loggers that must retain records through power loss benefit from the MT25QL128ABB8E12-CAUT's nonvolatile NOR storage and 3V-class operation compatible with 3.3V battery-backed rails. While deep-power-down style command support in the MT25Q family cuts standby draw between logging events, the exact standby and deep-power-down currents for this CAUT variant are not stated in the retrieved data and should be taken from the manufacturer datasheet before battery-budgeting. The 128Mb (16 MB) capacity stores roughly millions of small log records; the 133 MHz Quad SPI interface lets the logger offload records quickly during brief power-on windows, minimizing energy per session. In layout, keep the SPI bus short, use pull-ups on HOLD# and WRITE PROTECT pins to defined levels, and sequence erase operations so a sudden power cut leaves the filesystem metadata sector intact. Consider a supervisor IC to gate writes during brownout.
Recommended
Recommended Products Summary
Engineering reference data for MT25QL128ABB8E12-CAUT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MT25QL128ABB8E12-0AUT | MT25QL256BBB8E12-CAUT | MT25QL512ABB8E12-0AUT | MT25QL128ABB1EW7-CAUT |
|---|---|---|---|---|---|
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Package | 24-T-PBGA (6x8 mm) | 24-T-PBGA (6x8 mm) - same | 24-T-PBGA (6x8 mm) - same footprint | 24-T-PBGA (6x8 mm) - same footprint | 24-BGA TFBGA (FBGA code RW314) - verify ball map |
| Density | 128 Mbit (16 MB) | 128 Mbit | 256 Mbit (32 MB) | 512 Mbit (64 MB) | 128 Mbit |
| Interface | SPI / Dual / Quad I/O | SPI / Dual / Quad I/O | SPI / Dual / Quad I/O | SPI / Dual / Quad I/O | SPI / Dual / Quad I/O |
| Max Clock Frequency | 133 MHz | 133 MHz | 133 MHz | 133 MHz | 133 MHz |
| Operating Temperature | -40C to +125C (CAUT automotive) | Industrial grade (0AUT) | -40C to +125C (CAUT automotive) | Industrial grade (0AUT) | -40C to +125C (CAUT automotive) |
| Voltage Class | 3V (2.7 V - 3.6 V) | 3V | 3V | 3V | 3V |
| Price (qty 1, approx.) | $4.90 as of 2026-09-04 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Automotive -40C to +125C grade in compact BGA (vs MT25QL128ABB8E12-0AUT)
- 16 MB is the sweet spot for boot + dual-image OTA (vs MT25QL256BBB8E12-CAUT)
- 133 MHz Quad I/O with MT25Q enhanced feature set (vs MT25QL128ABB1EW7-CAUT)
Design Notes
At the maximum 133 MHz Quad SPI clock, treat CLK, S#, and DQ0-DQ3 as transmission lines: keep traces under 100 mm where possible, match CLK-to-DQ skew within a few hundred picoseconds, and add 22-33 ohm series termination at the driver for CLK. Route the flash clock away from switching-regulator nodes to prevent command corruption. If your host supports double transfer rate (DDR) read commands, verify setup/hold margins at your actual trace lengths rather than assuming datasheet room - BGA ball-out inductance adds a few hundred picohenrys per ball relative to SOP packages.
Power the device from a clean 3.0V-3.3V rail (2.7V to 3.6V operating window for the 3V-class MT25Q family). Place one 100 nF ceramic capacitor within 2 mm of the supply balls plus one 4.7-10 uF bulk capacitor nearby to support erase-current transients, which are much larger than read current. Avoid sharing the flash rail with a high-ripple DC-DC output without an LC filter; brownout during a program/erase operation can corrupt the targeted sector, so pair the supply with a supervisor or rely on the host to gate WRITE PROTECT during undervoltage events.
Three frequent integration errors: (1) A1 ball orientation - the 24-T-PBGA 6x8 footprint must match the Micron package drawing ball map; a mirrored footprint makes the part unsolderable without rework. (2) Quad mode is not enabled by default - set the enhanced volatile or nonvolatile configuration register, or reads stay single-bit SPI and configuration seems inexplicably slow. (3) Grade confusion - do not substitute the industrial 0AUT variant in an automotive CAUT design or vice versa without a formal change review, since temperature qualification differs. Also note this CAUT variant is not in Micron's Product Longevity Program per the datasheet addendum.
Estimated: a typical FR-4 via-in-pad land pattern for a 0.8 mm-pitch BGA (24-T-PBGA class) needs roughly 0.35 mm pads with non-solder-mask-defined (NSMD) geometry for reliable ball wetting; confirm exact dimensions against the Micron package drawing rather than generic BGA rules. Place the flash within 30 mm of the host SPI controller, keep HOLD# and WRITE PROTECT pulled to defined logic levels (do not float), and provide test points on all six signal lines for production programming and boundary diagnostics.
Compliance Information
Retrieved web data does not explicitly state RoHS/REACH/AEC-Q100 status for this part. The CAUT suffix denotes Micron automotive temperature grade (-40C to +125C); automotive qualification details are in the CAUT datasheet addendum. Obtain compliance certificates from Micron or the distributor before design release.
