Infineon Technologies S25FL129P0XBHV300
- Part No.:
- S25FL129P0XBHV300
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FL129P0XBHV300.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S25FL129P0XBHV300 from Cypress Semiconductor is a 128-Mbit (16 MB), single-power-supply Serial NOR Flash memory with uniform 64 KB sectors and two configurable 64 KB parameter blocks subdivided into thirty-two 4 KB sub-sectors. It supports Quad I/O FAST_READ at 80 MHz (40 MB/s effective), Page Program in 1.5 ms (typical), and operates across 2.7–3.6 V. Used for firmware storage and code execution in industrial controllers and network edge devices.
For engineers reviewing the S25FL129P0XBHV300 datasheet, S25FL129P0XBHV300 pinout, S25FL129P0XBHV300 application, or S25FL129P0XBHV300 equivalent, key selection criteria include quad I/O read bandwidth, 4 KB sub-sector erase granularity, OTP security space (16 bytes + 490 bytes), and WSON-8 (6 × 8 mm) package compatibility with SPI-based boot memory layouts.
Technical Context
The S25FL129P0XBHV300 implements a SPI-compatible serial interface with five extended command sets: Dual Output Read (DOR), Quad Output Read (QOR), Dual I/O Read (DIOR), Quad I/O Read (QIOR), and Quad Page Program (QPP). All high-speed modes operate up to 80 MHz clock rate using SI/IO0, SO/IO1, W#/ACC/IO2, and HOLD#/IO3 as bidirectional data lines.
It features dual protection architecture: Status Register Block Protection (BP2–BP0) and hardware W#/ACC pin control. The device includes CFI compliance for host auto-detection, JEDEC two-byte ID, and factory- or field-programmable OTP area supporting secure device identification and configuration locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB) - sufficient for full bootloader + application firmware in resource-constrained embedded systems |
| Supply Voltage | 2.7–3.6 V - enables direct integration with 3.3 V logic rails without level-shifting |
| Read Speed | QUAD I/O FAST_READ: 80 MHz clock / 40 MB/s - reduces boot time vs. standard SPI read |
| Page Program Time | 1.5 ms typical (256-byte page) - enables efficient incremental firmware updates |
| Erase Granularity | 4 KB sub-sector (P4E), 64 KB sector (SE), 256 KB sector, bulk - supports fine-grained OTA patching |
| Endurance & Retention | 100,000 program/erase cycles per sector; 20 years data retention - meets industrial lifecycle requirements |
| OTP Area | 16 bytes (secure ID) + 490 bytes (configurable) - enables immutable device binding and calibration storage |
Pinout & Package
Package: 8-contact WSON (6 × 8 mm), RoHS-compliant, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI transaction; required falling edge after power-up before command acceptance |
| SO/IO1 | Serial Output / I/O1 | Primary data output in standard mode; bidirectional in Dual/Quad I/O modes for parallelized reads/writes |
| W#/ACC/IO2 | Write Protect / Acceleration / I/O2 | Hardware write lock when low; enables accelerated programming when driven to 9 V; I/O line in Quad modes |
| HOLD#/IO3 | Hold Input / I/O3 | Pauses ongoing SPI transfer without chip deselect; functions as fourth I/O line in Quad I/O operations |
| SI/IO0 | Serial Input / I/O0 | Command/address/data input in standard mode; bidirectional in Dual/Quad I/O for full bus utilization |
| SCK | Serial Clock | Edge-triggered timing source: rising edge latches input, falling edge triggers output |
| VCC | Power Supply | Single 2.7–3.6 V supply powers all read/write/erase functions; internal charge pumps generate programming voltages |
| GND | Ground | Reference for all I/O and internal circuitry; must be low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O High Performance Read (QIOR) | Enables 40 MB/s effective throughput using all four I/O pins simultaneously - cuts boot latency by ~75% vs. standard SPI |
| 4 KB Sub-Sector Erase (P4E) | Allows firmware patching without disturbing adjacent code sections - critical for secure over-the-air updates |
| One-Time Programmable (OTP) Space | 16-byte secure ID + 490-byte configurable region - supports cryptographic key binding and factory calibration storage |
| Accelerated Programming Mode | 9 V applied to W#/ACC pin reduces page program time by up to 40% - improves production programming efficiency |
| CFI Compliance | Enables automatic flash detection and parameter negotiation in BIOS/bootloader - eliminates hard-coded memory assumptions |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating in harsh temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Non-volatile boot memory mapped via SPI; executes XIP (eXecute-In-Place) during cold start. Use Value: 4 KB sub-sector erase enables field-upgradable ladder logic without full reflash; 20-year retention ensures long-term reliability in unattended deployments. |
Use Scenario: Holding bootloader, OS kernel, and feature modules in enterprise-grade Ethernet routers requiring fast boot and secure update capability. IC Role / Device Role / Timing Role: Primary SPI flash for U-Boot initialization and Linux kernel decompression; supports QIOR for sub-500 ms boot sequence. Use Value: Quad I/O read bandwidth (40 MB/s) accelerates kernel load time; OTP space stores MAC address and crypto keys for secure boot chain. |
| Medical Diagnostic Device Configuration | Automotive ADAS Camera Module |
|
Use Scenario: Storing calibration profiles, sensor compensation tables, and regulatory compliance logs in portable ultrasound and ECG units. IC Role / Device Role / Timing Role: Parameter storage memory accessed during device power-on self-test (POST); supports frequent small writes via page programming. Use Value: 100,000-cycle endurance and 20-year retention meet IEC 62304 Class C software requirements; OTP locks calibration constants against tampering. |
Use Scenario: Firmware storage for image signal processors in rear-view and surround-view camera modules operating under automotive AEC-Q100 Grade 2 conditions. IC Role / Device Role / Timing Role: SPI-connected boot flash for ISP firmware; supports fast reprogramming during vehicle service via CAN-to-SPI bridge. Use Value: Uniform 64 KB sectors with sub-sector erase allow safe firmware rollback; WSON-8 package fits tight PCB space constraints near image sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Serial NOR Flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S25FL128SAGMFV00 | Successor device: identical 128-Mbit density, 1.8 V core + 3.0 V I/O, 133 MHz Quad I/O, 2.7–3.6 V operation, enhanced ECC | Supports lower-power SoC interfaces; includes on-die ECC for safety-critical firmware integrity | Select for new designs requiring AEC-Q100 qualification, extended voltage margin, or built-in error correction |
| MX25L12833FZNI-10G | 128-Mbit SPI NOR, 104 MHz Quad I/O, 2.7–3.6 V, no OTP, no sub-sector erase, 64 KB uniform sectors only | Lacks 4 KB sub-sector erase and OTP - limits secure OTA and fine-grained update capability | Acceptable where cost sensitivity outweighs sub-sector flexibility and secure ID requirements |
Compared with S25FL129P0XBHV300, the S25FL128S offers higher speed and ECC but requires design revision; MX25L12833F provides basic compatibility at lower cost but sacrifices sub-sector erase and OTP security - making it unsuitable for certified medical or automotive firmware storage.
Availability
S25FL129P0XBHV300 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot memory, medical diagnostic configuration, and automotive ADAS camera modules requiring stable component supply and legacy design continuity.
Supply support for S25FL129P0XBHV300 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
Cypress Semiconductor (now part of Infineon Technologies since 2020) designs high-performance, reliable non-volatile memories and microcontrollers for automotive, industrial, and consumer systems.
The S25FL129P belongs to the Spansion FL-L family of Serial NOR Flash devices, engineered specifically for code storage and execution in resource-constrained embedded systems requiring fast read access, flexible erase granularity, and secure configuration storage.
FAQ
Is S25FL129P0XBHV300 still recommended for new designs?
No. Cypress explicitly states this part is not recommended for new or current designs. The factory-recommended migration path is S25FL128S, which offers higher performance, enhanced reliability features including on-die ECC, and continued long-term supply support. Legacy designs may continue using S25FL129P0XBHV300 under controlled obsolescence management.
What is the function of the W#/ACC pin beyond write protection?
The W#/ACC pin serves three roles: (1) hardware write protect when pulled low, (2) acceleration enable when driven to 9 V to reduce page program time, and (3) IO2 in Quad I/O and Quad Page Program modes. Its multi-functionality eliminates need for external acceleration circuitry while enabling full 4-line data bus utilization during high-speed operations.
Does S25FL129P0XBHV300 support XIP (eXecute-In-Place)?
Yes. The device supports XIP via its Quad I/O FAST_READ (QIOR) command, allowing microcontrollers to execute code directly from flash memory without loading into RAM. This reduces system memory footprint and startup latency, especially critical in boot ROM implementations where external RAM may not yet be initialized.
How is the OTP area secured against unauthorized writes?
The 16-byte secure OTP region can be permanently locked using the OTP Lock command (0x4B), which disables further programming or erasure of that segment. Once locked, the bits cannot be altered-even by factory reprogramming-ensuring cryptographic keys or device IDs remain immutable throughout product lifetime.
S25FL129P0XBHV300 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-P
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 128Mbit
- Memory Organization:
- 16M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 5µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-BGA (6x8)
S25FL129P0XBHV300 FAQ
1.How can I place an order for S25FL129P0XBHV300 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL129P0XBHV300 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 S25FL129P0XBHV300 reliable?
The price and inventory of S25FL129P0XBHV300 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL129P0XBHV300 is usually 5 days.
3.What payment methods are accepted for S25FL129P0XBHV300?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL129P0XBHV300 transactions.
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4.How is shipping managed for S25FL129P0XBHV300?
S25FL129P0XBHV300 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL129P0XBHV300 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 S25FL129P0XBHV300?
For technical support, including S25FL129P0XBHV300 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL129P0XBHV300 requirements.
6.How does Aetrix verify that S25FL129P0XBHV300 is sourced from the original manufacturer or authorized distributors?
All S25FL129P0XBHV300 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 S25FL129P0XBHV300 meets industry standards.
7.What is the process for return or replacement of S25FL129P0XBHV300?
All S25FL129P0XBHV300 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL129P0XBHV300, 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 S25FL129P0XBHV300 part is unused and in its original packaging.
Return procedure for S25FL129P0XBHV300:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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