Infineon Technologies S25FL129P0XNFV013
- Part No.:
- S25FL129P0XNFV013
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FL129P0XNFV013.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:

- Shipping:

Inventory:2,141
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Product details
Overview
S25FL129P0XNFV013 from Cypress Semiconductor is a 128-Mbit (16 MB), 3.0 V serial NOR Flash memory with uniform 64 KB sectors and dual/quad I/O support, designed for embedded boot code storage and firmware image retention in industrial controllers and network edge devices. It operates across 2.7–3.6 V, delivers up to 40 MB/s effective read throughput via Quad I/O FAST_READ, and includes 128-bit factory-programmable OTP for secure device identification.
For engineers reviewing the S25FL129P0XNFV013 datasheet, S25FL129P0XNFV013 pinout, S25FL129P0XNFV013 application, or S25FL129P0XNFV013 equivalent, key selection criteria include SPI interface timing compliance (104 MHz max FAST_READ), sub-sector erase capability (4 KB), 100,000 program/erase cycles, and WSON-8 (6 × 8 mm) package compatibility with space-constrained PCB layouts.
Technical Context
The S25FL129P0XNFV013 implements a SPI-compatible serial interface with five extended command sets enabling Dual Output Read, Quad Output Read, Dual I/O, Quad I/O, and Quad Page Programming - all operating at up to 80 MHz clock rate. Its memory array is partitioned into 256 uniform 64 KB sectors, with the top/bottom two sectors further subdivided into thirty-two 4 KB sub-sectors for granular firmware update management.
It integrates JEDEC-standard Device ID, CFI compliance for host auto-detection, and hardware-based memory protection via Status Register BP2–BP0 bits and W#/ACC pin control. The device uses Cypress's 0.09 µm MirrorBit® process, supports accelerated programming via 9 V applied to W#/ACC, and features deep power-down mode drawing only 3 µA typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB) - sufficient for full bootloader + dual-image firmware storage in resource-constrained microcontrollers. |
| Supply Voltage | 2.7–3.6 V - single-supply operation compatible with standard 3.3 V system rails without level-shifting. |
| Read Throughput | 40 MB/s (Quad I/O FAST_READ) - enables sub-400 ms firmware load time for 16 MB images in real-time boot scenarios. |
| Program/Erase Endurance | 100,000 cycles per sector - supports field firmware updates over 10+ years in industrial gateways. |
| Data Retention | 20 years typical - ensures long-term reliability of stored configuration and calibration data without refresh. |
| OTP Capacity | 128-bit factory-lockable area + 490 bytes user-programmable - provides immutable device identity and flexible secure key storage. |
| Sub-sector Erase | 4 KB granularity (P4E command) - allows partial firmware patching without erasing entire 64 KB sectors. |
Pinout & Package
Package: 8-contact WSON (6 × 8 mm), RoHS-compliant, with exposed thermal pad (not electrically connected; may be tied to GND if voltage differential is maintained at 0 mV).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable signal; must fall before any command execution; places device in active power mode. |
| SCK | Serial Clock | Provides timing reference; commands/addresses latched on rising edge, SO data output triggered on falling edge. |
| SI/IO0 | Serial Input / I/O0 | Primary input for commands, addresses, and program data; functions as bidirectional I/O0 in Dual/Quad modes. |
| SO/IO1 | Serial Output / I/O1 | Primary output for read data; functions as bidirectional I/O1 in Dual/Quad modes for parallelized transfers. |
| W#/ACC/IO2 | Write Protect / Acceleration / I/O2 | Hardware write protection when low; enables accelerated programming at 9 V; serves as I/O2 in Quad modes. |
| HOLD#/IO3 | Hold / I/O3 | Pauses ongoing SPI transaction without deselecting chip; serves as I/O3 in Quad I/O and Quad Page Program modes. |
| VCC | Power Supply | 2.7–3.6 V main supply; powers internal charge pumps for erase/program operations. |
| GND | Ground | Reference return path for all signals and internal regulators; must be low-impedance for stable timing. |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad I/O High-Performance Read | Enables 2× or 4× data bandwidth vs. standard SPI, reducing boot latency by up to 75% in memory-bound systems. |
| Uniform 64 KB Sectors + 4 KB Sub-sectors | Supports atomic firmware patching and rollback without disturbing adjacent functional modules in safety-critical applications. |
| Hardware Memory Protection | Status register BP2–BP0 bits + W#/ACC pin allow selective locking of boot sectors against accidental overwrite during field updates. |
| 128-bit Factory-Lockable OTP | Provides cryptographically verifiable device identity for secure boot chain binding and anti-cloning enforcement. |
| Deep Power-Down Mode | 3 µA typical current draw extends battery life in always-on IoT edge nodes during idle periods between firmware checks. |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Image |
|---|---|
|
Use Scenario: Storing primary and backup firmware images in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic <500 ms cold-start recovery after power loss. Use Value: 4 KB sub-sector erase enables delta-updates without disrupting operational runtime code, minimizing machine downtime. |
Use Scenario: Holding boot loader and Linux kernel image in enterprise-grade Ethernet routers requiring fast, reliable startup. IC Role / Device Role / Timing Role: SPI-connected NOR Flash delivering 40 MB/s Quad I/O read speed to meet <1.2 s boot-to-OS requirement. Use Value: 100,000 endurance cycles support weekly security patch deployments over 10-year product lifecycle. |
| Medical Diagnostic Device Configuration | Smart Energy Meter Calibration Data |
|
Use Scenario: Retaining FDA-mandated calibration coefficients and device-specific operational parameters in portable ultrasound units. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with 128-bit OTP for cryptographic signature binding to regulatory audit logs. Use Value: 20-year data retention ensures calibration validity across full service life without recalibration intervals. |
Use Scenario: Archiving metrology-grade calibration constants and tariff tables in ANSI C12.22-compliant smart electricity meters. IC Role / Device Role / Timing Role: Low-power non-volatile memory supporting 3 µA deep power-down during grid sleep cycles. Use Value: Hardware write protection prevents unauthorized modification of billing parameters during field maintenance. |
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 |
|---|---|---|---|
| S25FL128SAGMFV001 | Successor device with identical pinout, enhanced 133 MHz Quad I/O read, and improved 200K endurance; no W#/ACC acceleration pin required. | Designed for new designs requiring longer product lifecycle support and higher performance; not drop-in for legacy W#/ACC-dependent programming flows. | Select when migrating from S25FL129P0XNFV013 and redesigning PCB layout to eliminate 9 V generation circuitry. |
| MX25L12833FZC-10G | 128 Mbit SPI NOR with 104 MHz FAST_READ but no Quad I/O or sub-sector erase; 100K endurance; different status register map. | Lacks 4 KB erase granularity and OTP security features; suitable only for basic firmware storage where partial updates are unnecessary. | Choose only if cost sensitivity outweighs need for secure boot, field patching, and long-term data integrity requirements. |
Compared with S25FL129P0XNFV013, the S25FL128S offers higher speed and endurance without external acceleration voltage, while MX25L12833FZC-10G sacrifices advanced features for lower unit cost - making it viable only in non-security-critical, static-firmware applications.
Availability
S25FL129P0XNFV013 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot image retention, medical diagnostic device configuration, and smart energy meter calibration data archiving requiring stable component supply and long-term obsolescence management.
Supply support for S25FL129P0XNFV013 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 and now part of Infineon Technologies, delivers high-performance embedded solutions including programmable SoCs, analog ICs, connectivity products, and reliable flash memories.
The S25FL129P belongs to Cypress's Spansion-branded serial NOR Flash family, engineered specifically for deterministic boot performance, firmware security, and long-life data retention in automotive, industrial, and networking systems.
FAQ
Is S25FL129P0XNFV013 still recommended for new designs?
No. Cypress explicitly states this part is "not recommended for new and current designs." The factory-recommended migration path is S25FL128S, which offers higher performance, improved endurance, and eliminates the need for 9 V on W#/ACC. S25FL129P0XNFV013 remains supported for existing production and legacy repair, but design-in should follow Cypress's guidance.
What is the function of the exposed pad on the WSON-8 package?
The exposed central pad on the WSON-8 package is a thermal pad with no electrical connection. It must not be tied to any voltage or signal net. If connected to PCB ground, the copper pour must ensure 0 mV potential difference between the pad and the GND pin to prevent leakage currents that could disrupt internal voltage regulation during programming.
Can the 4 KB sub-sector erase be used in all configurations of S25FL129P0XNFV013?
Yes. The P4E (20h) command for 4 KB sub-sector erase is supported exclusively in the uniform 64 KB sector configuration - which is the configuration implemented in S25FL129P0XNFV013. This feature is not available in the uniform 256 KB sector variant (e.g., S25FL128P), confirming its presence here per datasheet Section 7.4 and Table 9.16.
Does S25FL129P0XNFV013 require external high voltage for normal programming?
No - standard Page Program (PP) operations use only the 2.7–3.6 V VCC supply. However, Accelerated Programming mode (enabled by applying 9 V to W#/ACC) reduces typical page program time from 1.5 ms to 0.8 ms. This mode is optional and not required for functional operation; it is disabled by default and activated only when the external 9 V source is present and asserted.
S25FL129P0XNFV013 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-P
- Package/Case:
- 8-WDFN Exposed Pad
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x8)
S25FL129P0XNFV013 FAQ
1.How can I place an order for S25FL129P0XNFV013 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL129P0XNFV013 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 S25FL129P0XNFV013 reliable?
The price and inventory of S25FL129P0XNFV013 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL129P0XNFV013 is usually 5 days.
3.What payment methods are accepted for S25FL129P0XNFV013?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL129P0XNFV013 transactions.
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4.How is shipping managed for S25FL129P0XNFV013?
S25FL129P0XNFV013 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL129P0XNFV013 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 S25FL129P0XNFV013?
For technical support, including S25FL129P0XNFV013 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL129P0XNFV013 requirements.
6.How does Aetrix verify that S25FL129P0XNFV013 is sourced from the original manufacturer or authorized distributors?
All S25FL129P0XNFV013 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 S25FL129P0XNFV013 meets industry standards.
7.What is the process for return or replacement of S25FL129P0XNFV013?
All S25FL129P0XNFV013 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL129P0XNFV013, 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 S25FL129P0XNFV013 part is unused and in its original packaging.
Return procedure for S25FL129P0XNFV013:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL129P0XNFV013 Tags

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