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Infineon Technologies S25FL256LAGBHI020
- Part No.:
- S25FL256LAGBHI020
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FL256LAGBHI020.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:
- Shipping:
Inventory:431
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Product details
Overview
S25FL256LAGBHI020 from Infineon is a 256-Mbit serial NOR flash memory with Quad SPI interface, 1.8 V supply voltage, 133 MHz read clock frequency, and uniform 4-KB sector architecture. It serves as non-volatile program/data storage in microcontroller-based embedded systems requiring code execution directly from flash (XIP).
For engineers reviewing the S25FL256LAGBHI020 datasheet, S25FL256LAGBHI020 pinout, S25FL256LAGBHI020 application, or S25FL256LAGBHI020 equivalent, key selection criteria include Quad SPI timing compliance, sector protection granularity, write endurance (100K cycles), data retention (20 years), and industrial temperature range (-40°C to +85°C) support.
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with extended Quad I/O (QPI) mode for high-speed data transfer. It supports both volatile and non-volatile configuration registers, enabling flexible read latency, dummy cycle, and drive strength settings.
Internal architecture includes a 256-Mbit array organized as 512 pages of 64 KB each, with erase granularity down to 4-KB sectors and 64-KB blocks. Write operations use on-chip charge pump and automatic erase-before-write logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB) - sufficient for firmware images up to 32 MB in size |
| Interface | Quad SPI (QPI) - enables 532 MB/s peak throughput using four I/O lines simultaneously |
| Supply Voltage | 1.7–2.0 V - compatible with low-power 1.8 V system rails |
| Read Clock Frequency | 133 MHz - supports fast XIP execution with minimal wait states |
| Erase Granularity | 4-KB uniform sectors - allows fine-grained firmware updates without full chip erase |
| Endurance | 100,000 program/erase cycles per sector - suitable for field-upgradable firmware |
| Data Retention | 20 years at +85°C - ensures long-term reliability in industrial environments |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), 208-mil width, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO | Serial Output | Master-in/slave-out data line for standard and quad SPI reads |
| SI | Serial Input | Master-out/slave-in data line for standard SPI writes and commands |
| WP# | Write Protect | Hardware-enabled sector protection; active-low, tied high for normal operation |
| HOLD# | Hold | Pauses ongoing serial transfer without resetting internal state |
| CLK | Serial Clock | Input clock synchronizing all SPI transactions; max 133 MHz |
| CS# | Chip Select | Active-low enable signal; initiates command decoding on falling edge |
| VCC | Power Supply | 1.8 V core and I/O supply; decoupling capacitor required near pin |
| GND | Ground | Reference return path for all digital and analog circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI (QPI) Mode | Enables 4-bit-per-clock data transfers, doubling bandwidth over dual SPI and quadrupling over standard SPI |
| Uniform 4-KB Sector Erase | Allows independent update of bootloader, application, and configuration sections without disturbing adjacent code |
| Volatile & Non-Volatile Configuration Registers | Supports runtime tuning of read latency and drive strength while preserving settings across power cycles |
| Security Features | Includes software-locked sector protection and 64-bit unique ID for secure boot binding |
| Industrial Temperature Range | Rated for continuous operation from –40°C to +85°C, validated per AEC-Q100 Class 2 for automotive ECUs |
Applications
| Automotive Instrument Clusters | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing calibrated gauge graphics, firmware updates, and driver profiles in digital dashboards. IC Role / Device Role / Timing Role: Non-volatile code and asset storage with XIP support for real-time UI rendering. Use Value: 4-KB sector erase enables over-the-air (OTA) partial updates without disrupting cluster operation. | Use Scenario: Holding ladder logic programs, I/O mapping tables, and safety-critical configuration in programmable logic controllers. IC Role / Device Role / Timing Role: Boot memory and persistent program storage with deterministic read latency. Use Value: 133 MHz QPI read speed reduces boot time by >35% versus legacy 80 MHz SPI flash. |
| Medical Diagnostic Imaging Bootloader | Smart Energy Meter Firmware |
Use Scenario: Securing boot code and calibration constants for ultrasound and MRI subsystems requiring FDA traceability. IC Role / Device Role / Timing Role: Trusted boot source with hardware write protection and unique ID binding. Use Value: Software-locked sectors prevent unauthorized firmware modification during service or calibration. | Use Scenario: Storing metrology firmware, tariff tables, and communication stack binaries in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Field-upgradable non-volatile storage with 20-year data retention at elevated ambient temperatures. Use Value: 100K-cycle endurance supports >100 firmware revisions over 15+ years of field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress S25FL256SAGMFI000 | Same die, identical electrical specs, but with different marking and packaging (tray vs. tape-and-reel) | No functional difference; used interchangeably in production where packaging format aligns with SMT line requirements | Select when tray delivery is preferred for low-volume prototyping or manual assembly |
| Winbond W25Q256JWEIQ | 256-Mbit Quad SPI flash with 1.8 V supply, but uses different command set and lacks volatile configuration register support | Requires firmware driver adaptation; not drop-in for QPI mode or latency tuning features | Choose only if existing Winbond driver stack is already deployed and QPI flexibility is not required |
Compared with S25FL256LAGBHI020, the Cypress alternative offers identical functionality with packaging variation, while the Winbond part requires software rework due to command-set divergence and missing configuration register control-making it viable only in driver-matured platforms.
Availability
S25FL256LAGBHI020 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, medical diagnostic imaging systems, and smart energy meter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for S25FL256LAGBHI020 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 AG is a German semiconductor manufacturer specializing in power management, sensor, and memory solutions for automotive, industrial, and IoT applications.
S25FL256LAGBHI020 belongs to the Semper™ family of high-reliability NOR flash devices, designed specifically for mission-critical embedded systems demanding robustness, security, and long-term data integrity.
FAQ
What is the maximum clock frequency supported in Quad SPI mode?
The S25FL256LAGBHI020 supports up to 133 MHz in Quad SPI (QPI) mode, delivering 532 MB/s peak throughput. This frequency is guaranteed across the full industrial temperature range (–40°C to +85°C) and requires proper PCB layout with matched trace lengths and controlled impedance routing to maintain signal integrity.
Does this device support execute-in-place (XIP) operation?
Yes, the S25FL256LAGBHI020 supports XIP operation via its Quad SPI interface with configurable read latency and dummy cycles. It includes dedicated QPI command sequences that allow microcontrollers to fetch instructions directly from flash without copying to RAM, reducing boot time and memory footprint in resource-constrained systems.
How is sector protection implemented?
Sector protection is implemented through both hardware (WP# pin) and software (status register bits). The WP# pin provides global write protection for all sectors when asserted, while individual 4-KB sectors can be locked/unlocked via the Status Register Protection (SRP) and Sector Protection (SP) bits, enabling selective firmware partitioning.
Is there a unique identifier for secure boot binding?
Yes, the device contains a factory-programmed, read-only 64-bit unique ID accessible via a dedicated SPI command (0x4B). This ID is used in secure boot implementations to bind firmware images cryptographically to the specific flash unit, preventing cloning or unauthorized firmware loading across devices.
S25FL256LAGBHI020 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-L
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- 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, QPI
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-BGA (8x6)
S25FL256LAGBHI020 FAQ
1.How can I place an order for S25FL256LAGBHI020 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LAGBHI020 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 S25FL256LAGBHI020 reliable?
The price and inventory of S25FL256LAGBHI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LAGBHI020 is usually 5 days.
3.What payment methods are accepted for S25FL256LAGBHI020?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LAGBHI020 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LAGBHI020?
S25FL256LAGBHI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LAGBHI020 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 S25FL256LAGBHI020?
For technical support, including S25FL256LAGBHI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LAGBHI020 requirements.
6.How does Aetrix verify that S25FL256LAGBHI020 is sourced from the original manufacturer or authorized distributors?
All S25FL256LAGBHI020 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 S25FL256LAGBHI020 meets industry standards.
7.What is the process for return or replacement of S25FL256LAGBHI020?
All S25FL256LAGBHI020 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LAGBHI020, 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 S25FL256LAGBHI020 part is unused and in its original packaging.
Return procedure for S25FL256LAGBHI020:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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