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Infineon Technologies S25FL256SAGBHIB00
- Part No.:
- S25FL256SAGBHIB00
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FL256SAGBHIB00.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:
- Shipping:
Inventory:545
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Product details
Overview
S25FL256SAGBHIB00 from Cypress Semiconductor (now Infineon) is a 256-Mbit serial NOR flash memory with Quad SPI interface, 133 MHz clock frequency, and 3.0–3.6 V supply voltage. It supports XIP (execute-in-place), dual/quad I/O modes, and sector erase granularity down to 4 KB - used in boot code storage for industrial PLCs and network edge routers.
For engineers reviewing the S25FL256SAGBHIB00 datasheet, S25FL256SAGBHIB00 pinout, S25FL256SAGBHIB00 application, or S25FL256SAGBHIB00 equivalent, key selection criteria include quad-SPI timing compliance, 4-KB uniform sector architecture, write-protect flexibility via WP#/VIO, and JEDEC-standard SOIC-16 package compatibility.
Technical Context
This device implements a standard SPI-compatible command set extended for quad I/O operation (0x6B fast read quad I/O, 0xEB extended address read). It uses a 64-Mbyte address space mapped across 512 uniform 4-KB sectors and eight 64-KB parameter blocks, with internal ECC for bit error correction during read operations.
Write protection is configurable per sector via status register bits (SRWD, BP0–BP3), and hardware write protection is enabled by pulling WP# low. The device supports deep power-down mode (1 µA typical) and retains data for 20 years at 55 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB) - sufficient for full firmware image + configuration partition in embedded boot applications |
| Interface | Quad SPI (QSPI) - enables 532 MB/s effective throughput using four I/O lines and double-data-rate clocking |
| Max Clock Frequency | 133 MHz - meets timing requirements for high-speed boot loading in ARM Cortex-A/M series SoCs |
| Erase Granularity | Uniform 4-KB sectors - allows fine-grained firmware updates without disturbing adjacent functional partitions |
| Supply Voltage | 3.0–3.6 V - compatible with legacy 3.3 V logic rails and industrial power domains |
| Data Retention | 20 years at 55 °C - validated for long-life deployment in unattended infrastructure equipment |
| Write Cycle Endurance | 100,000 program/erase cycles per sector - supports field-upgradable firmware with frequent patch cycles |
Pinout & Package
Package: 16-pin SOIC (300 mil, 1.27 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (SO) | Serial Output | QSPI data output line; supports dual/quad mode with phase-aligned sampling |
| Pin 2 (SI) | Serial Input | QSPI data input line; accepts command/address/data in standard or quad mode |
| Pin 3 (WP#) | Write Protect | Active-low hardware lock; disables all write/erase when pulled low |
| Pin 4 (GND) | Ground | Reference return path for I/O and core logic; requires low-impedance PCB connection |
| Pin 5 (VIO) | I/O Supply | Separate 1.65–3.6 V rail for I/O buffer level-shifting; decoupling required |
| Pin 6 (HOLD#) | Hold Control | Pauses ongoing QSPI transfer without resetting internal state or clock domain |
| Pin 7 (SCLK) | Serial Clock | Master-generated clock up to 133 MHz; drives all I/O timing edges |
| Pin 8 (VCC) | Core Supply | 3.0–3.6 V core power; supplies internal logic, charge pump, and memory array |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Interface | Enables 4× bandwidth vs. standard SPI, reducing boot time by up to 65% in Cortex-A9-based gateways |
| 4-KB Uniform Sector Architecture | Eliminates need for complex wear-leveling algorithms in OTA update stacks |
| Hardware Write Protection (WP#) | Prevents accidental firmware corruption during power transients or brown-out conditions |
| Internal ECC (1-bit correction) | Corrects single-bit errors on-the-fly without CPU intervention or latency penalty |
| Deep Power-Down Mode (1 µA) | Extends battery life in always-on IoT concentrators with infrequent firmware access |
Applications
| Industrial PLC Firmware Storage | Network Edge Router Boot Memory |
|---|---|
Use Scenario: Storing bootloader, RTOS kernel, and field-configurable logic in DIN-rail mounted programmable controllers. IC Role / Device Role / Timing Role: Non-volatile boot source with deterministic 133 MHz QSPI read latency for cold-start execution. Use Value: 4-KB sector erase enables safe partial firmware updates without halting control loop execution. | Use Scenario: Holding U-Boot, Linux kernel, and packet forwarding microcode in carrier-grade access routers. IC Role / Device Role / Timing Role: Primary XIP-capable flash executing directly from address-mapped memory space. Use Value: Quad SPI bandwidth supports sub-500 ms boot-to-packet-forwarding time under thermal stress. |
| Medical Imaging Device Configuration | Smart Energy Meter Firmware |
Use Scenario: Storing calibration tables, safety-critical diagnostics, and regulatory firmware patches in portable ultrasound units. IC Role / Device Role / Timing Role: Secure, write-protected nonvolatile storage with hardware-enabled sector locking. Use Value: WP# pin integration prevents unauthorized modification during FDA audit or field service. | Use Scenario: Hosting metrology firmware, tariff tables, and secure boot keys in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: High-reliability code storage with 20-year data retention at elevated ambient temperatures. Use Value: Validated retention at 55 °C ensures accuracy over 15+ year field deployment without refresh. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25645GM2I-12G | 256 Mbit, 120 MHz max clock, no VIO pin (single 3.3 V supply), no internal ECC | Lacks separate I/O voltage and ECC; requires external error handling in safety-critical systems | Select if cost-sensitive and ECC not mandated by functional safety standard |
| W25Q256JWSIQ | 256 Mbit, 133 MHz, dual/quad SPI, but no HOLD# pin and different write-protect register mapping | Requires PCB redesign for HOLD# signal routing and firmware adaptation for status register writes | Select only when existing design already uses Winbond's register layout and timing margins allow |
Compared with MX25L25645GM2I-12G and W25Q256JWSIQ, the S25FL256SAGBHIB00 provides guaranteed ECC, flexible VIO for mixed-voltage systems, and HOLD# for deterministic bus arbitration - critical for real-time boot integrity in industrial control.
Availability
S25FL256SAGBHIB00 is available at Aetrix Electronics and suitable for industrial PLCs, network edge routers, and medical imaging devices requiring stable component supply and long-term lifecycle support.
Supply support for S25FL256SAGBHIB00 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 acquired Cypress Semiconductor in 2020 and maintains its serial NOR flash portfolio for industrial and automotive applications.
This part belongs to the Semper™ family of high-reliability NOR flash devices, designed specifically for mission-critical boot and code storage where data integrity, long retention, and deterministic timing are mandatory.
FAQ
What is the purpose of the VIO pin on the S25FL256SAGBHIB00?
The VIO pin supplies a dedicated voltage (1.65–3.6 V) to the I/O buffers, enabling level-shifting between the flash's I/O logic and host processors operating at lower voltages (e.g., 1.8 V). This eliminates external level shifters and ensures signal integrity across mixed-voltage designs without compromising timing margins.
Does the S25FL256SAGBHIB00 support execute-in-place (XIP) operation?
Yes, it supports true XIP operation via memory-mapped Quad SPI mode. When configured with appropriate host controller support (e.g., ARM Cortex-A/M series with QSPI memory controller), instructions are fetched directly from flash without copying to RAM, reducing boot latency and SRAM usage in resource-constrained systems.
How does the internal ECC function during normal read operations?
The device performs automatic 1-bit error correction on every read access using on-die Hamming code. No host intervention or additional commands are required - corrected data is delivered transparently, and uncorrectable multi-bit errors trigger a status flag in the ECC error register for system-level fault reporting.
Can the S25FL256SAGBHIB00 be used in automotive applications?
No - this specific variant (S25FL256SAGBHIB00) is rated for industrial temperature range (–40 °C to +85 °C) and is not AEC-Q100 qualified. For automotive use, Infineon offers the pin-compatible S25FL256SAGMFI000 (–40 °C to +125 °C, AEC-Q100 Grade 2).
S25FL256SAGBHIB00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-S
- 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
- 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 (6x8)
S25FL256SAGBHIB00 FAQ
1.How can I place an order for S25FL256SAGBHIB00 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256SAGBHIB00 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 S25FL256SAGBHIB00 reliable?
The price and inventory of S25FL256SAGBHIB00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256SAGBHIB00 is usually 5 days.
3.What payment methods are accepted for S25FL256SAGBHIB00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256SAGBHIB00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256SAGBHIB00?
S25FL256SAGBHIB00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256SAGBHIB00 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 S25FL256SAGBHIB00?
For technical support, including S25FL256SAGBHIB00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256SAGBHIB00 requirements.
6.How does Aetrix verify that S25FL256SAGBHIB00 is sourced from the original manufacturer or authorized distributors?
All S25FL256SAGBHIB00 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 S25FL256SAGBHIB00 meets industry standards.
7.What is the process for return or replacement of S25FL256SAGBHIB00?
All S25FL256SAGBHIB00 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256SAGBHIB00, 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 S25FL256SAGBHIB00 part is unused and in its original packaging.
Return procedure for S25FL256SAGBHIB00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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