Infineon Technologies S25FL129P0XMFI013
- Part No.:
- S25FL129P0XMFI013
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL129P0XMFI013.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S25FL129P0XMFI013 from Cypress Semiconductor is a 128-Mbit (16 MB), single-power-supply Serial NOR Flash memory with uniform 64 KB sectors and dual/quad I/O support, operating across 2.7–3.6 V. It delivers up to 40 MB/s effective read bandwidth via Quad I/O FAST_READ, features 100,000 program/erase cycles per sector, 20-year data retention, and includes a 128-bit factory-programmable OTP area for secure device identification in embedded boot code storage.
For engineers reviewing the S25FL129P0XMFI013 datasheet, S25FL129P0XMFI013 pinout, S25FL129P0XMFI013 application, or S25FL129P0XMFI013 equivalent, key selection criteria include SPI interface timing compliance (up to 104 MHz FAST_READ), sub-sector erase capability (4 KB), W#/ACC-accelerated programming, and BGA/WSON/SO package compatibility for space-constrained industrial controllers and automotive infotainment modules.
Technical Context
The S25FL129P0XMFI013 implements a SPI-compatible serial interface with five extended command sets-DOR, QOR, DIOR, QIOR, and QPP-to enable high-speed dual- and quad-I/O operations. Its memory array is partitioned into 256 uniform 64 KB sectors, with the top/bottom two sectors subdivided into thirty-two 4 KB sub-sectors for granular firmware update management.
It supports accelerated programming via external 9 V applied to the W#/ACC pin, enabling faster page writes while maintaining full backward compatibility with legacy S25FL128P commands and timing. Internal charge pumps generate required high-voltage programming pulses, eliminating need for external VPP supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB) - sufficient for full bootloader + firmware image storage in resource-constrained microcontrollers. |
| Supply Voltage | 2.7–3.6 V - compatible with standard 3.3 V logic rails without level-shifting circuitry. |
| Read Speed | 104 MHz FAST_READ clock rate - enables ≤96 ns instruction fetch latency for real-time code execution from flash. |
| Erase Granularity | 4 KB sub-sector erase (P4E) - allows partial firmware patching without erasing entire 64 KB sector. |
| Endurance | 100,000 program/erase cycles per sector - supports field-upgradable firmware with multi-year update cycles. |
| Data Retention | 20 years at 55 °C - meets long-life requirements for industrial control and automotive ECUs. |
| OTP Capacity | 128-bit factory-lockable ID + 490-byte user OTP - enables secure device binding and calibration data storage. |
Pinout & Package
Package: 16-pin SOIC (300-mil body width), RoHS-compliant, surface-mountable with industry-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command initiation; must fall before first clock edge of any instruction sequence. |
| SCK | Serial Clock Input | Drives all timing-critical operations; rising edge latches SI, falling edge triggers SO output. |
| SI / IO0 | Serial Input / I/O0 | Primary data input in standard mode; functions as bidirectional I/O in Dual/Quad I/O modes. |
| SO / IO1 | Serial Output / I/O1 | Primary data output in standard mode; becomes bidirectional I/O in Dual/Quad I/O modes. |
| HOLD# / IO3 | Hold Input / I/O3 | Pauses ongoing SPI transfer without deselecting chip; repurposed as I/O3 in Quad I/O mode. |
| W# / ACC / IO2 | Write Protect / Acceleration / I/O2 | Enables hardware write protection when low; accepts 9 V for accelerated programming; acts as I/O2 in Quad I/O mode. |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad I/O Read Modes | Enables 20 MB/s (DUAL) or 40 MB/s (QUAD) effective read throughput-reducing boot time by >60% vs. standard SPI. |
| Sub-sector Erase (4 KB) | Allows firmware delta updates without disturbing adjacent configuration or calibration data stored in same 64 KB block. |
| W#/ACC Accelerated Programming | Reduces typical 256-byte page program time from 1.5 ms to <800 µs when 9 V applied-critical for field OTA update efficiency. |
| CFI Compliance | Permits automatic detection and runtime configuration of flash parameters by host bootloader without hard-coded assumptions. |
| OTP Security Area | 128-bit factory-programmable ID prevents cloning; additional 490-byte OTP supports encrypted key storage or calibration offsets. |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Boot Memory |
|---|---|
Use Scenario: Storing boot loader and real-time control firmware in programmable logic controllers requiring field updates over CAN or Ethernet. IC Role / Device Role / Timing Role: Primary non-volatile code storage with sub-sector erase for safe incremental firmware patches. Use Value: 4 KB erase granularity avoids full 64 KB sector erasure during minor bug fixes-preserving uptime-critical runtime parameters. |
Use Scenario: Holding boot code and GUI assets for digital instrument clusters where startup time and security are safety-critical. IC Role / Device Role / Timing Role: Secure boot memory with OTP-locked device identity and fast QUAD I/O read for rapid display initialization. Use Value: 40 MB/s QUAD I/O read speed reduces boot-to-display latency to <120 ms-meeting ASIL-B timing constraints. |
| Medical Diagnostic Imaging Module | Smart Energy Meter Firmware |
Use Scenario: Storing FPGA configuration bitstreams and acquisition firmware in portable ultrasound devices subject to strict EMC and thermal limits. IC Role / Device Role / Timing Role: Low-power serial flash with Deep Power-Down (3 µA) for battery-backed standby between imaging sessions. Use Value: 3 µA deep power-down current extends battery life by >18 months in intermittent-use diagnostic tools. |
Use Scenario: Hosting metering firmware and tariff tables in ANSI C12.22-compliant smart meters deployed in harsh outdoor environments. IC Role / Device Role / Timing Role: Industrial-grade flash with 20-year data retention and -40°C to +85°C operation for unattended 15+ year deployments. Use Value: Guaranteed 20-year data retention eliminates need for periodic firmware refresh-reducing field service cost by ~37%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Serial NOR Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S25FL128SAGMFI000 | Successor device with identical pinout, enhanced 133 MHz Quad I/O speed, and improved 200K-cycle endurance. | Designed for new designs requiring longer product lifecycle support and higher reliability margins. | Select when launching new platforms; migration path explicitly endorsed by Cypress. |
| MX25L12833FZNI-10G | 128 Mbit SPI NOR with 104 MHz max clock, no W#/ACC acceleration, 100K cycles, but offers 2.3–3.6 V range and JEDEC JESD216B SFDP support. | Better suited for cost-sensitive consumer IoT gateways where SFDP auto-configuration simplifies firmware portability. | Choose if SFDP-based dynamic parameter discovery is required and W#/ACC acceleration is unnecessary. |
Compared with S25FL129P0XMFI013, the S25FL128S offers higher performance and extended longevity for new designs, while the MX25L12833F provides broader voltage tolerance and standardized SFDP metadata-making it more flexible in heterogeneous firmware ecosystems.
Availability
S25FL129P0XMFI013 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster boot memory, medical diagnostic imaging modules, and smart energy meter firmware requiring stable component supply and long-term obsolescence management.
Supply support for S25FL129P0XMFI013 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, founded in 1982, delivers high-performance, high-reliability embedded solutions for automotive, industrial, and consumer systems-now part of Infineon Technologies since 2020.
The S25FL129P belongs to Cypress's Spansion-branded Serial NOR Flash product line, engineered for deterministic boot code execution, secure firmware updates, and robust operation in mission-critical embedded applications.
FAQ
Is S25FL129P0XMFI013 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 identical pinout, higher 133 MHz Quad I/O speed, 200K-cycle endurance, and active long-term supply support. Designers should transition to S25FL128S for all new projects.
What package types does S25FL129P0XMFI013 use?
S25FL129P0XMFI013 uses a 16-pin SOIC (300-mil body width) package with standard gull-wing leads. Pinout matches industry-standard SPI NOR flash layouts, including dedicated CS#, SCK, SI/IO0, SO/IO1, HOLD#/IO3, and W#/ACC/IO2 signals-enabling drop-in replacement in existing SOIC footprints.
Does S25FL129P0XMFI013 support Quad I/O mode?
Yes. It supports Quad I/O High Performance Read (QIOR) and Quad Page Program (QPP) using SI/IO0, SO/IO1, W#/ACC/IO2, and HOLD#/IO3 as bidirectional data lines. QIOR achieves up to 80 MHz clock rate and 40 MB/s effective data rate-verified in the official datasheet Rev. *J, Section 9.6.
How is memory protection implemented on this device?
Memory protection uses Status Register Block Protection bits (BP2–BP0) combined with the W#/ACC pin. When W#/ACC is low, BP bits define protected address ranges (entire array, top/bottom sectors, or parameter blocks). Protection is hardware-enforced-no software override-and persists across power cycles once configured.
S25FL129P0XMFI013 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-P
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
S25FL129P0XMFI013 FAQ
1.How can I place an order for S25FL129P0XMFI013 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL129P0XMFI013 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 S25FL129P0XMFI013 reliable?
The price and inventory of S25FL129P0XMFI013 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL129P0XMFI013 is usually 5 days.
3.What payment methods are accepted for S25FL129P0XMFI013?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL129P0XMFI013 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL129P0XMFI013?
S25FL129P0XMFI013 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL129P0XMFI013 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 S25FL129P0XMFI013?
For technical support, including S25FL129P0XMFI013 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL129P0XMFI013 requirements.
6.How does Aetrix verify that S25FL129P0XMFI013 is sourced from the original manufacturer or authorized distributors?
All S25FL129P0XMFI013 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 S25FL129P0XMFI013 meets industry standards.
7.What is the process for return or replacement of S25FL129P0XMFI013?
All S25FL129P0XMFI013 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL129P0XMFI013, 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 S25FL129P0XMFI013 part is unused and in its original packaging.
Return procedure for S25FL129P0XMFI013:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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