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Infineon Technologies S25FL256SAGBAEA03
- Part No.:
- S25FL256SAGBAEA03
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FL256SAGBAEA03.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
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Product details
Overview
S25FL256SAGBAEA03 from Infineon is a 256 Mb (32 MB) serial NOR flash memory with SPI Multi-I/O interface, designed for high-reliability military applications requiring extended temperature operation and hardware-based security. It features 3.0 V core supply (2.7–3.6 V), dual- and quad-I/O read modes up to 80 MHz DDR (80 MBps), hybrid or uniform sector erase options, and integrated ECC for single-bit error correction.
For engineers reviewing the S25FL256SAGBAEA03 datasheet, S25FL256SAGBAEA03 pinout, S25FL256SAGBAEA03 application, or S25FL256SAGBAEA03 equivalent, key selection criteria include military-grade (-55°C to +125°C) operation, 24-/32-bit addressing support, OTP array (1024 bytes), Quad Page Programming (QPP), and compatibility with S25FL-P family footprints and command sets.
Technical Context
This device implements Infineon's 65-nm MIRRORBIT™ Eclipse architecture with separate core (VCC) and I/O (VIO) supplies-enabling flexible voltage operation (VIO = 1.65–3.6 V). It supports SPI clock modes 0 and 3, DDR read commands, and AutoBoot functionality that executes preconfigured Normal or Quad Read at power-up or reset.
The flash integrates configurable sector protection via Status Register bits and Advanced Sector Protection (ASP), allowing individual sector locking via boot code or password. Its hybrid sector layout includes thirty-two 4-KB sectors at top/bottom plus 64-KB sectors elsewhere, ensuring backward compatibility with legacy S25FL devices while supporting uniform 256-KB erase for future software scalability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mb (32 MB) - sufficient for firmware storage in mission-critical avionics and defense systems. |
| Interface | SPI Multi-I/O with SDR/DDR support - enables scalable bandwidth from 6.25 MBps (Normal Read) to 80 MBps (Quad DDR Read). |
| Operating Temperature | -55°C to +125°C - qualified for military-grade environmental stress without derating. |
| Erase Architecture | Hybrid or uniform sector option - hybrid preserves legacy compatibility; uniform simplifies driver development for newer platforms. |
| Page Programming | 256- or 512-byte buffer with QPP - reduces host CPU overhead in low-clock-rate embedded controllers. |
| Error Correction | On-die ECC - automatically detects and corrects single-bit errors during read, eliminating need for external SW/FW correction logic. |
| Data Retention | >20 years - validated under accelerated life testing per MIL-STD-883, critical for long-deployment platforms. |
| Cycling Endurance | 100 program-erase cycles - specified at full military temperature range, not room-temperature typical. |
Pinout & Package
Package: 24-ball FBGA (FAB024), 6 × 8 mm, Pb-free, compatible with standard reflow profiles for high-reliability assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command execution; supports daisy-chaining in multi-device configurations. |
| SCK | Serial Clock | Input clock for SDR/DDR modes; supports up to 133 MHz SDR and 80 MHz DDR for timing-critical boot sequences. |
| IO0 / SI | Serial Input / Data Line 0 | Primary data input in single/dual/quad modes; functions as SI in standard SPI, IO0 in multi-I/O protocols. |
| IO1 / SO | Serial Output / Data Line 1 | Primary data output; supports bidirectional use in DDR and quad-output reads for maximum throughput. |
| IO2 / WP# | Write Protect / Input 2 | Hardware-enabled sector protection control; active-low signal locks sectors when asserted, independent of register state. |
| IO3 / HOLD# | Hold / Input 3 | Pauses ongoing read/write transfers without deselecting chip; essential for interrupt-driven host firmware. |
| VCC | Core Supply | 2.7–3.6 V power for memory array and logic; decoupling required per MIL-PRF-38535 Class H layout guidelines. |
| VIO | I/O Supply | 1.65–3.6 V independent rail-allows interfacing with 1.8 V or 3.3 V host processors without level shifters. |
| VSS | Ground | Dedicated signal ground; requires separate plane routing from power ground to maintain signal integrity in EMI-prone environments. |
Key Features
| Feature | Design Value |
|---|---|
| AutoBoot Execution | Configurable Normal or Quad Read at power-up/reset-enables deterministic boot-time firmware fetch without host initialization delay. |
| Common Flash Interface (CFI) | Standardized JEDEC-compliant parameter table-allows runtime detection of geometry, timing, and protection settings by bootloader. |
| OTP Array (1024 bytes) | One-time programmable space for secure keys, calibration data, or unique device identifiers-physically isolated from main array. |
| Advanced Sector Protection (ASP) | Password- or boot-code-controlled individual sector lock-prevents unauthorized firmware overwrite in field-deployed systems. |
| Quad Input Page Programming (QPP) | Reduces programming time by 4× vs. standard SPI writes-critical for in-system updates on resource-constrained military controllers. |
Applications
| Avionics Flight Control Unit | Tactical Radio Firmware Storage |
|---|---|
|
Use Scenario: Stores certified flight control firmware and configuration tables in airborne computing modules operating across -55°C to +125°C thermal cycles. IC Role / Device Role / Timing Role: Primary nonvolatile boot memory with AutoBoot-triggered Quad Read at system power-on to meet DO-254 startup timing budgets. Use Value: Hybrid sector layout ensures compatibility with legacy update mechanisms while enabling faster field upgrades via QPP and DDR reads. |
Use Scenario: Holds encrypted radio stack binaries and cryptographic keys in handheld/manpack radios exposed to desert and arctic conditions. IC Role / Device Role / Timing Role: Secure firmware repository leveraging OTP for key storage and ASP for tamper-resistant sector locking during over-the-air updates. Use Value: On-die ECC eliminates bit-flip-induced corruption in high-radiation environments, extending field reliability beyond 20 years. |
| Missile Guidance System Boot Memory | Naval Radar Signal Processor Code Storage |
|
Use Scenario: Stores real-time guidance algorithms and sensor calibration data in sealed, shock-mounted guidance electronics. IC Role / Device Role / Timing Role: High-speed Quad DDR Read (80 MBps) feeds instruction cache of dual-core ARM Cortex-R5F to sustain 100+ kHz servo loop rates. Use Value: Uniform 256-KB erase mode simplifies partitioning for A/B firmware images, enabling zero-downtime failover during mission-critical updates. |
Use Scenario: Retains radar waveform generation firmware and beamforming coefficients in maritime radar cabinets subject to salt fog and wide thermal swings. IC Role / Device Role / Timing Role: Dual-supply (VCC/VIO) operation allows direct interface with 1.8 V FPGA configuration interfaces without level translation components. Use Value: 100-cycle endurance and >20-year retention ensure firmware integrity across 30-year naval platform lifecycles without replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25673EMI-10G | Commercial grade (-40°C to +85°C); no military temp qualification or ASP; 1.8 V only VIO. | Lacks AutoBoot, OTP, and hybrid sector layout; limited to non-mission-critical industrial use. | Select only if cost sensitivity outweighs environmental and security requirements. |
| S25FL256LAGMFI00 | Same die, but automotive AEC-Q100 Grade 2 (-40°C to +105°C); identical command set and pinout. | Qualified for automotive ECUs-not rated for sustained operation above +105°C or below -55°C. | Acceptable for ground vehicle systems where military temp range is unnecessary. |
Compared with MX25L25673EMI-10G and S25FL256LAGMFI00, the S25FL256SAGBAEA03 uniquely delivers full military temperature range, hardware-enforced sector protection (ASP), and AutoBoot-making it the sole choice for avionics, missile, and naval radar platforms requiring guaranteed operation and firmware integrity under extreme conditions.
Availability
S25FL256SAGBAEA03 is available at Aetrix Electronics and suitable for avionics flight control units, tactical radio firmware storage, missile guidance systems, and naval radar signal processor code storage requiring stable component supply across extended product lifecycles.
Supply support for S25FL256SAGBAEA03 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensing, and security solutions for industrial, automotive, and aerospace markets.
The FL-S family targets high-reliability embedded systems requiring military-grade flash memory with advanced security, extended temperature operation, and seamless migration from prior S25FL generations.
FAQ
Does S25FL256SAGBAEA03 support both 24-bit and 32-bit addressing?
Yes, it supports extended addressing modes: 24-bit for legacy compatibility (up to 16 MB) and 32-bit for full 32 MB access. Address mode is selected via Configuration Register bit CR[3], and the device auto-detects mode during power-up based on initial command sequence.
What is the purpose of the VIO supply pin, and can it be tied to VCC?
VIO powers the I/O buffer circuitry independently from the core array (VCC), enabling interface voltage flexibility from 1.65 V to 3.6 V. It may be tied to VCC only if the host operates at the same voltage; otherwise, separate regulation is required to prevent signal integrity loss or latch-up in mixed-voltage systems.
How does AutoBoot function, and can its target address be modified in-field?
AutoBoot executes a preprogrammed Normal or Quad Read command at a fixed address (0x000000 or user-defined via Configuration Register CR[15:8]) immediately after power-up or hardware reset. The address is writable only when the device is unlocked and requires a specific 3-byte write sequence to CR-preventing accidental modification during normal operation.
Is the OTP array reprogrammable, and what happens after programming?
The 1024-byte OTP array is one-time programmable: once a bit is set to '0', it cannot be reverted to '1'. After programming, the array becomes permanently read-only and is excluded from standard erase operations. Access requires issuing the Read Security Register (0x48) command with proper unlock sequence.
S25FL256SAGBAEA03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-S
- Package/Case:
- 24-TBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 256Mbit
- Memory Organization:
- 32M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-BGA (8x6)
S25FL256SAGBAEA03 FAQ
1.How can I place an order for S25FL256SAGBAEA03 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256SAGBAEA03 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S25FL256SAGBAEA03 reliable?
The price and inventory of S25FL256SAGBAEA03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256SAGBAEA03 is usually 5 days.
3.What payment methods are accepted for S25FL256SAGBAEA03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256SAGBAEA03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256SAGBAEA03?
S25FL256SAGBAEA03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256SAGBAEA03 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S25FL256SAGBAEA03?
For technical support, including S25FL256SAGBAEA03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256SAGBAEA03 requirements.
6.How does Aetrix verify that S25FL256SAGBAEA03 is sourced from the original manufacturer or authorized distributors?
All S25FL256SAGBAEA03 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S25FL256SAGBAEA03 meets industry standards.
7.What is the process for return or replacement of S25FL256SAGBAEA03?
All S25FL256SAGBAEA03 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256SAGBAEA03, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S25FL256SAGBAEA03 part is unused and in its original packaging.
Return procedure for S25FL256SAGBAEA03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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