My Inquiry
My Account
Cypress Semiconductor Corp S25FL256LDPMFI001
- Part No.:
- S25FL256LDPMFI001
- Manufacturer:
- Cypress Semiconductor Corp
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LDPMFI001.pdf
- Description:
- FLASH - NOR MEMORY IC 256MB (32M
- Quantity:
- Payment:
- Shipping:
Inventory:3,525
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S25FL256LDPMFI001 from Infineon is a 256-Mbit (32-MB) serial NOR flash memory with Quad SPI interface, 133 MHz clock frequency, and 1.8 V core supply voltage. It supports XIP (execute-in-place), dual/quad I/O protocols, and sector-erase architecture for embedded firmware storage in microcontroller-based systems.
For engineers reviewing the S25FL256LDPMFI001 datasheet, S25FL256LDPMFI001 pinout, S25FL256LDPMFI001 application, or S25FL256LDPMFI001 equivalent, key selection criteria include read latency, erase granularity, write endurance (100K cycles), data retention (20 years), and industrial temperature range (-40°C to +85°C).
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with extended quad-input/output (QIO) mode for high-speed data transfer. It features configurable 4-byte addressing, volatile status register write protection, and hardware reset support via RESET# pin.
The memory array is organized as 512 uniform sectors of 64 KB each, enabling precise firmware update partitioning. Erase suspend/resume functionality allows background operations during active read access, improving system responsiveness in real-time applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB) - sufficient for full MCU boot image plus application code in resource-constrained edge nodes |
| Interface | Quad SPI (QPI) - enables 532 MB/s peak throughput using four data lines simultaneously |
| Max Clock Frequency | 133 MHz - supports fast sequential reads with ≤8 ns address-to-data delay |
| Erase Granularity | 64 KB uniform sectors - allows independent firmware module updates without disturbing adjacent code |
| Endurance | 100,000 program/erase cycles - meets long-life requirements for field-upgradable industrial controllers |
| Data Retention | 20 years at +85°C - ensures reliable operation over full product lifecycle in harsh environments |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade embedded systems without thermal derating |
Pinout & Package
Package: 8-pin SOIC (208 mil, 5.2 mm × 5.2 mm, 1.27 mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO / IO1 | Serial Output / Quad I/O Line 1 | Bi-directional data line used in QIO read/write; requires pull-up for SPI mode compatibility |
| SI / IO0 | Serial Input / Quad I/O Line 0 | Input for standard SPI writes; becomes bidirectional in QIO mode for full-duplex transfers |
| WP# / IO2 | Write Protect / Quad I/O Line 2 | Hardware write lock when low; repurposed as I/O2 in quad mode with status register configuration |
| HOLD# / IO3 | Hold Input / Quad I/O Line 3 | Suspends ongoing transfer without chip deselect; functions as I/O3 in QIO after enabling via status register |
| CS# | Chip Select | Active-low enable signal; must be asserted before command transmission and held stable during multi-byte ops |
| CLK | Serial Clock | Master-generated timing reference; duty cycle tolerance ±10% supports robust clock distribution |
| VCC | Core Power Supply | 1.7–1.95 V nominal; tight regulation required to prevent bit errors during programming |
| GND | Ground Reference | Common return path for all I/O and core logic; separate analog/digital ground not required |
Key Features
| Feature | Design Value |
|---|---|
| XIP (Execute-in-Place) | Enables direct code execution from flash without RAM loading, reducing BOM cost and boot time in Cortex-M MCUs |
| Dual/Quad I/O Protocols | Configurable interface modes allow bandwidth scaling from 66 MB/s (dual) to 532 MB/s (quad) based on host controller capability |
| Program/Erase Suspend | Permits read access during background erase, critical for real-time OS task scheduling in safety-critical firmware |
| Security Register Lock | One-time programmable lock prevents unauthorized modification of configuration bits affecting boot behavior and memory protection |
| Reset Pin (RESET#) | Hardware-initiated cold reset restores default SPI mode and clears internal state, eliminating need for power-cycle recovery |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic startup sequence and secure firmware integrity verification. Use Value: 64 KB sector erase enables modular firmware updates without halting production lines; 20-year data retention ensures reliability across equipment lifecycles. | Use Scenario: Holding boot code and sensor calibration data for vision processing units in advanced driver-assistance systems. IC Role / Device Role / Timing Role: High-reliability serial flash supporting ASIL-B compliant boot paths with fast read latency for real-time initialization. Use Value: 133 MHz Quad SPI interface delivers sub-100 µs boot code fetch time; industrial temp rating matches under-hood ECU requirements. |
| Medical Imaging Device Code Storage | Smart Grid Communication Module |
Use Scenario: Storing FPGA configuration bitstreams and diagnostic firmware in portable ultrasound and MRI control units. IC Role / Device Role / Timing Role: Secure, radiation-tolerant code storage with hardware write protection preventing accidental corruption during field servicing. Use Value: WP#/HOLD# dual-function pins simplify PCB layout while maintaining independent control of write lock and transfer suspension. | Use Scenario: Hosting protocol stack firmware and encryption keys in DIN-rail mounted smart meters and grid edge controllers. IC Role / Device Role / Timing Role: Trusted non-volatile memory with security register lock ensuring cryptographic key persistence and tamper-resistant boot. Use Value: One-time programmable security register prevents reconfiguration of memory protection settings post-deployment in utility infrastructure. |
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 |
|---|---|---|---|
| S25FL256SDSMF101 | Same density and package but uses 3.0 V supply; lacks 1.8 V operation and industrial temp grade | Restricted to commercial-temp consumer electronics; incompatible with 1.8 V I/O domains | Select only if system operates at 3.0 V and ambient temperature stays below +70°C |
| MX25L25673EMI-13G | 256 Mbit density, 133 MHz max clock, but uses standard SPI (no QIO); 100K endurance same | No quad I/O support limits throughput to 133 MB/s; no XIP optimization for Cortex-R cores | Choose when host controller lacks QIO support or when lower pin count simplifies routing |
Compared with S25FL256SDSMF101 and MX25L25673EMI-13G, the S25FL256LDPMFI001 uniquely combines 1.8 V operation, industrial temperature range, and Quad SPI with XIP-making it optimal for space-constrained, thermally demanding embedded systems requiring fast, secure firmware execution.
Availability
S25FL256LDPMFI001 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, and medical imaging devices requiring stable component supply and long-term lifecycle support.
Supply support for S25FL256LDPMFI001 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 AG is a German semiconductor manufacturer specializing in power management, sensing, and connectivity solutions for automotive, industrial, and IoT markets.
The S25FL family targets high-reliability embedded systems needing secure, fast, and long-life serial flash for boot code and firmware storage in mission-critical applications.
FAQ
What is the minimum VCC voltage required for reliable operation of S25FL256LDPMFI001?
The device requires a minimum VCC of 1.7 V for guaranteed functionality across all operating modes, including program and erase. Operation below this threshold may cause incomplete writes or corrupted status register settings. The recommended range is 1.7–1.95 V, with typical design margin maintained using ±3% LDO regulation.
Does S25FL256LDPMFI001 support octal DTR interface?
No, this part does not support octal DTR (Double Data Rate) interface. It supports standard SPI, Dual I/O, and Quad I/O modes only, with maximum clock frequency of 133 MHz in QIO mode. Octal DTR capability is found in later-generation Infineon HyperFlash devices, not the S25FL series.
Can the security register be unlocked after programming?
No, the security register lock bit is one-time programmable and irreversible. Once set, it permanently disables further writes to configuration registers, including block protection bits and Quad Enable. This feature is intended to prevent post-deployment tampering with boot security settings.
Is there a built-in ECC engine in S25FL256LDPMFI001?
No, this device does not include an on-die error correction code (ECC) engine. Bit error handling relies on external controller-level ECC implementation or software-based algorithms. The flash supports read-modify-write sequences compatible with common ECC schemes, but no hardware parity or Hamming code generation is integrated.
S25FL256LDPMFI001 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Cypress Semiconductor Corp
- Series:
- FL-L
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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, QPI
- Clock Frequency:
- 66 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:
- 16-SOIC
S25FL256LDPMFI001 FAQ
1.How can I place an order for S25FL256LDPMFI001 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LDPMFI001 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 S25FL256LDPMFI001 reliable?
The price and inventory of S25FL256LDPMFI001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPMFI001 is usually 5 days.
3.What payment methods are accepted for S25FL256LDPMFI001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPMFI001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LDPMFI001?
S25FL256LDPMFI001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LDPMFI001 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 S25FL256LDPMFI001?
For technical support, including S25FL256LDPMFI001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPMFI001 requirements.
6.How does Aetrix verify that S25FL256LDPMFI001 is sourced from the original manufacturer or authorized distributors?
All S25FL256LDPMFI001 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 S25FL256LDPMFI001 meets industry standards.
7.What is the process for return or replacement of S25FL256LDPMFI001?
All S25FL256LDPMFI001 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPMFI001, 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 S25FL256LDPMFI001 part is unused and in its original packaging.
Return procedure for S25FL256LDPMFI001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL256LDPMFI001 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
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…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
