Infineon Technologies S25FL129P0XNFV003
- Part No.:
- S25FL129P0XNFV003
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FL129P0XNFV003.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:

- Shipping:

Inventory:3,518
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S25FL129P0XNFV003 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 code storage and data logging in industrial controllers and automotive infotainment systems. 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 OTP for secure device identification.
For engineers reviewing the S25FL129P0XNFV003 datasheet, S25FL129P0XNFV003 pinout, S25FL129P0XNFV003 application, or S25FL129P0XNFV003 equivalent, key selection criteria include sector architecture (64 KB + 4 KB sub-sectors), 100,000 program/erase cycles, deep power-down current (3 µA), and SPI command compatibility with legacy S25FL128P devices.
Technical Context
The S25FL129P0XNFV003 implements a SPI-compatible serial interface with five extended instructions for high-speed Dual/Quad I/O operations, enabling concurrent read/write access across SI, SO, W#/ACC, and HOLD# pins. Its memory array is partitioned into 256 uniform 64 KB sectors, with top/bottom parameter blocks subdivided into thirty-two 4 KB sub-sectors - supporting fine-grained firmware updates without erasing full sectors.
It integrates JEDEC-standard two-byte Device ID, CFI compliance for host auto-configuration, and hardware-based memory protection via Status Register BP2–BP0 bits and W#/ACC pin control. Accelerated programming requires 9 V applied to W#/ACC, while internal charge pumps generate required high voltages for erase/program cycles from the single 3.0 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB) - supports full boot image storage for mid-tier microcontrollers. |
| Supply Voltage | 2.7–3.6 V - compatible with standard 3.3 V logic rails and brown-out tolerant operation. |
| Read Throughput | 40 MB/s (Quad I/O FAST_READ) - enables fast code execution directly from flash (XIP) in real-time systems. |
| Program Endurance | 100,000 cycles per sector - suitable for field-upgradable firmware with frequent patching. |
| Data Retention | 20 years - ensures long-term reliability in unattended industrial deployments. |
| OTP Capacity | 128-bit factory-lockable area + 490 bytes user-programmable - provides immutable device identity and calibration data storage. |
| Standby Current | 80 µA typical - reduces system-level power consumption during idle states. |
Pinout & Package
Package: 24-ball BGA (6 × 8 mm), 6 × 4 pin configuration (FAC024 footprint), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command initiation; required falling edge after power-up before first instruction. |
| SCK | Serial Clock Input | Drives all timing-critical operations; rising edge latches input (SI), falling edge triggers output (SO). |
| SI/IO0 | Serial Input / I/O0 | Primary command/address/data input; functions as bidirectional I/O0 in Dual/Quad modes. |
| SO/IO1 | Serial Output / I/O1 | Primary data output; functions as bidirectional I/O1 in Dual/Quad modes for parallelized transfers. |
| W#/ACC/IO2 | Write Protect / Acceleration / I/O2 | Hardware write lock when low; enables accelerated programming at 9 V; serves as I/O2 in Quad modes. |
| HOLD#/IO3 | Hold Input / I/O3 | Pauses ongoing SPI transaction without chip deselect; acts as I/O3 in Quad I/O mode. |
| VCC | Power Supply | Single 2.7–3.6 V supply powers all read/write/erase functions and internal voltage generation. |
| 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 Read Modes | Enables 2× or 4× data bandwidth over standard SPI, reducing boot time by up to 75% vs. legacy single-I/O reads. |
| Uniform 64 KB + 4 KB Sub-Sectors | Allows selective firmware patching within protected memory regions without disrupting adjacent operational code. |
| Accelerated Programming Mode | Reduces page program time to 1.5 ms (typical) using external 9 V on W#/ACC, cutting update latency in OTA applications. |
| CFI Compliance | Permits automatic detection and configuration by host BIOS/bootloader without hard-coded driver dependencies. |
| Deep Power-Down Mode | Draws only 3 µA - extends battery life in always-on edge sensors and remote telemetry nodes. |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing and executing real-time control firmware in programmable logic controllers with periodic field updates. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad I/O interface for deterministic boot and runtime execution. Use Value: 40 MB/s read speed and 100K-cycle endurance ensure reliable firmware revision management across 10+ years of deployment. | Use Scenario: Hosting boot loader and OS kernel images in head-unit systems requiring fast cold-start performance. IC Role / Device Role / Timing Role: Primary boot memory mapped via SPI controller; supports secure OTP for anti-cloning authentication. Use Value: Sub-sector erase capability enables incremental UI updates without full system reflash, minimizing downtime. |
| Medical Diagnostic Device Log Storage | Smart Energy Meter Firmware Vault |
Use Scenario: Recording timestamped sensor calibration data and diagnostic event logs in portable ultrasound units. IC Role / Device Role / Timing Role: Data logging buffer with wear-leveling support via software-managed sub-sector writes. Use Value: 20-year data retention and 128-bit OTP guarantee regulatory traceability and audit-ready device history. | Use Scenario: Securing firmware integrity and cryptographic keys in ANSI C12.22-compliant utility meters. IC Role / Device Role / Timing Role: Tamper-resistant storage for AES keys and signed firmware images using locked OTP region. Use Value: Hardware write protection (BP bits + W#/ACC) prevents unauthorized firmware modification during field servicing. |
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 128 Mbit density but enhanced 133 MHz Quad I/O read speed and 200K cycle endurance. | Supports faster boot sequences and longer field life in new designs; lacks P4E/P8E sub-sector erase commands. | Select for new designs requiring higher reliability and future-proof timing margins. |
| MX25L12833FZNI-10G | 128 Mbit Macronix part with 104 MHz Quad I/O, 100K cycles, and no OTP area; uses standard SPI command set with minor register differences. | Drop-in replacement for basic code storage where secure ID or sub-sector erase is not required. | Choose when cost sensitivity outweighs OTP and fine-grained erase needs. |
Compared with S25FL129P0XNFV003, the S25FL128S offers superior speed and endurance for new designs, while the MX25L12833F provides broader distributor availability and simpler command compatibility - both lack the 4 KB sub-sector erase capability critical for partial firmware updates.
Availability
S25FL129P0XNFV003 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical diagnostic device log storage requiring stable component supply and long-term lifecycle support.
Supply support for S25FL129P0XNFV003 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 embedded solutions including programmable SoCs, analog ICs, connectivity products, and reliable non-volatile memories.
The S25FL129P belongs to Cypress's Spansion-branded serial NOR Flash product line, engineered for robust code storage and data logging in automotive, industrial, and medical systems demanding high endurance and secure identification.
FAQ
Is S25FL129P0XNFV003 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 improved speed (133 MHz Quad I/O), higher endurance (200K cycles), and updated package options - all while maintaining pin and command compatibility for most use cases.
What does the "0XNFV003" suffix indicate in the full part number?
The suffix encodes package and temperature grade: "0XN" = 24-ball BGA (6 × 8 mm, 6 × 4 pin), "F" = industrial temperature range (–40°C to +85°C), "V" = lead-free/RoHS-compliant, and "003" = revision level. This matches the FAC024 package variant documented in the datasheet Figure 2.4.
Can the OTP area be reprogrammed after locking?
No. Once the 128-bit OTP region is locked via the OTP Lock command (0x02), it becomes permanently read-only. The lock is irreversible and enforced by on-die fuses. Unlocked OTP space can be programmed multiple times until lock is executed, but no field reset or unlock mechanism exists.
Does S25FL129P0XNFV003 support XIP (eXecute-In-Place) operation?
Yes. Its Quad I/O FAST_READ mode delivers up to 40 MB/s effective throughput with low latency, enabling direct code execution from flash without copying to RAM. This is confirmed by Cypress's application notes AN98567 and AN98570, which specify XIP timing requirements met by the S25FL129P's AC characteristics.
S25FL129P0XNFV003 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)
S25FL129P0XNFV003 FAQ
1.How can I place an order for S25FL129P0XNFV003 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL129P0XNFV003 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 S25FL129P0XNFV003 reliable?
The price and inventory of S25FL129P0XNFV003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL129P0XNFV003 is usually 5 days.
3.What payment methods are accepted for S25FL129P0XNFV003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL129P0XNFV003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL129P0XNFV003?
S25FL129P0XNFV003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL129P0XNFV003 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 S25FL129P0XNFV003?
For technical support, including S25FL129P0XNFV003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL129P0XNFV003 requirements.
6.How does Aetrix verify that S25FL129P0XNFV003 is sourced from the original manufacturer or authorized distributors?
All S25FL129P0XNFV003 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 S25FL129P0XNFV003 meets industry standards.
7.What is the process for return or replacement of S25FL129P0XNFV003?
All S25FL129P0XNFV003 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL129P0XNFV003, 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 S25FL129P0XNFV003 part is unused and in its original packaging.
Return procedure for S25FL129P0XNFV003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL129P0XNFV003 Tags

-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology

-
AT21CS01-STUM10-T
Microchip Technology

-
AT24C02C-SSHM-T
Microchip Technology

-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics

-
AT24CS02-SSHM-T
Microchip Technology

-
93LC46BT-I/OT
Microchip Technology

-
AT24C04C-SSHM-T
Microchip Technology

-
24LC01BT-I/SN
Microchip Technology

-
24AA02UIDT-I/OT
Microchip Technology

-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

