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Infineon Technologies S25FL208K0RMFI040
- Part No.:
- S25FL208K0RMFI040
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
S25FL208K0RMFI040.pdf
- Description:
- IC FLASH 8MBIT SPI 76MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,727
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Product details
Overview
S25FL208K0RMFI040 from Cypress Semiconductor is an 8-Mbit serial NOR flash memory with uniform 4-kB sectors, supporting standard and dual-output SPI interfaces up to 76 MHz, 2.7–3.6 V single-supply operation, and 100k program/erase cycles - used for firmware storage, boot code, and parameter retention in microcontroller-based embedded systems.
For engineers reviewing the S25FL208K0RMFI040 datasheet, S25FL208K0RMFI040 pinout, S25FL208K0RMFI040 application, or S25FL208K0RMFI040 equivalent, key selection criteria include sector granularity (4 kB), dual-output read capability, hardware write protection via WP# pin, and industrial temperature range (–40°C to +85°C).
Technical Context
The S25FL208K0RMFI040 implements a standard SPI interface compliant with modes 0 and 3 (CPOL=0/1, CPHA=0/1), with SI/IO0 serving as bidirectional data line - input during commands and dual-output during Fast Read Dual Output (3Bh). It supports JEDEC manufacturer/device ID reads (90h, 9Fh) and status register polling (05h) for WIP/WEL monitoring.
Its memory array comprises 4,096 pages of 256 bytes each, organized into 256 uniform 4-kB sectors and 16 64-kB blocks. Erase operations are restricted to sector (20h), block (D8h), or chip (C7h) level - no page-erase capability - and all writes require prior Write Enable (06h) command and WEL bit assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 bytes), enabling compact firmware image storage without external memory expansion. |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic domains and tolerant of rail droop in battery-backed or low-noise power designs. |
| Max Clock Frequency | 76 MHz for both Standard Read (03h) and Fast Read Dual Output (3Bh) - doubles effective throughput vs. single-SO mode. |
| Page Program Time | 1.5 ms typical - determines minimum latency for small configuration updates or runtime parameter writes. |
| Sector Erase Time | 50 ms typical per 4-kB sector - enables fine-grained field-upgrade partitioning without full-chip erase delays. |
| Data Retention | 20 years typical - ensures long-term reliability for infrequently updated calibration data or security keys. |
| Endurance | 100,000 program/erase cycles - supports frequent logging or OTA update staging in industrial gateways. |
Pinout & Package
Package: 8-pin SOIC (150-mil, SOA 008), RoHS-compliant, surface-mountable with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select (active-low) | Enables device communication; high-impedance SO output and standby current (15 µA) when deasserted. |
| SCK | Serial Clock Input | Drives timing for all SPI transfers; rising edge latches SI/IO0, falling edge outputs SO/SI during dual-read. |
| SI/IO0 | Serial Input / Dual Output | Input for commands/addresses/data; becomes second data output during Fast Read Dual Output (3Bh). |
| SO | Serial Output | Primary data output during standard read; high-impedance during HOLD# assertion or CS# high. |
| WP# | Hardware Write Protect | Disables Status Register writes when low; works with BP bits for partial or full-array hardware lock. |
| HOLD# | Communication Pause | Halts ongoing SPI transfer without deselecting device; preserves internal state while sharing bus with other peripherals. |
| VCC | Power Supply | 2.7–3.6 V supply; powers core logic, I/O buffers, and charge pumps for erase/program operations. |
| GND | Ground Reference | Return path for all signals and internal circuitry; must be low-impedance for stable timing and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Uniform 4-kB Sector Architecture | Enables precise firmware partitioning (e.g., bootloader, app, config) without wasted erase overhead or fragmentation. |
| Fast Read Dual Output (3Bh) | Delivers 152 MB/s effective bandwidth at 76 MHz, accelerating boot-time code shadowing from flash to RAM. |
| Hardware + Software Write Protection | Combines WP# pin control with programmable BP0–BP3 bits to lock specific sectors against accidental overwrite. |
| Auto-increment Read Capability | Supports continuous sequential reads across page boundaries without address retransmission - simplifies host driver logic. |
| Deep Power-down Mode (B9h) | Reduces current to ≤1 µA - critical for battery-powered devices requiring months of standby with retained flash content. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
|
Use Scenario: Storing immutable bootloader and safety-critical firmware images in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with deterministic read latency and sector-level update isolation to prevent corruption during field upgrades. Use Value: 4-kB sector granularity allows patching only the modified firmware module, minimizing downtime and eliminating need for full reflash. |
Use Scenario: Holding certified boot firmware and regulatory-compliant configuration data in portable diagnostic equipment with strict data integrity requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with hardware write protection (WP# + BP bits) and 20-year data retention. Use Value: Prevents unauthorized modification of boot sequence or calibration parameters - directly supports FDA Class II device traceability mandates. |
| Automotive Telematics Module | Smart Energy Meter Parameter Log |
|
Use Scenario: Storing OTA update staging partitions and vehicle-specific configuration maps in connected telematics units exposed to wide thermal cycling. IC Role / Device Role / Timing Role: Industrial-grade (–40°C to +85°C) serial flash with fast dual-output read for rapid firmware validation pre-boot. Use Value: 76 MHz dual-read speed reduces boot verification time by ~40% vs. standard SPI, improving system responsiveness after ignition. |
Use Scenario: Logging time-stamped metering parameters (voltage, current, kWh) in utility-grade smart meters with decade-long field deployment. IC Role / Device Role / Timing Role: High-endurance (100k cycles), low-power flash supporting frequent small-sector writes under constrained energy budgets. Use Value: 15 µA standby current and deep power-down mode extend battery life in backup-powered meters beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L8006EM1I-12G | 8 Mbit, 104 MHz max clock, 3.0 V, 4-kB sectors, but lacks dual-output read and uses different status register layout. | Higher clock rate but no dual-output acceleration; requires modified driver for status polling and write enable sequence. | Select if maximum read speed is prioritized over dual-output compatibility and existing SPI driver reuse. |
| S25FL108K0XMFI040 | Same family, 8 Mbit, identical pinout and command set, but rated for extended temperature (–40°C to +105°C) and higher endurance (200k cycles). | Drop-in replacement with enhanced thermal and endurance specs - suitable for automotive under-hood or high-reliability industrial use. | Choose when operating ambient exceeds +85°C or >100k cycles are required; otherwise, S25FL208K0RMFI040 remains cost-optimized. |
Compared with MX25L8006EM1I-12G, S25FL208K0RMFI040 delivers dual-output throughput advantage and tighter integration with Cypress's ecosystem tools; versus S25FL108K0XMFI040, it trades extended temperature and endurance for lower unit cost in standard industrial deployments.
Availability
S25FL208K0RMFI040 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, and automotive telematics modules requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for S25FL208K0RMFI040 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) designs high-reliability nonvolatile memory and programmable system-on-chip solutions for industrial, automotive, and consumer applications.
The S25FL family targets embedded systems needing robust, SPI-compatible flash with flexible protection schemes and fast read performance - optimized for boot code, firmware, and configuration storage where predictability and longevity matter.
FAQ
Is S25FL208K0RMFI040 pin-compatible with other S25FL-series devices?
Yes - it shares the same 8-pin SOIC (150-mil) footprint and signal mapping with all S25FLx08K variants, including S25FL108K and S25FL016K. Pin functions (CS#, SCK, SI/IO0, SO, WP#, HOLD#, VCC, GND) are identical, enabling direct PCB footprint reuse across density and temperature grades.
Does S25FL208K0RMFI040 support Quad SPI (QSPI) mode?
No - the device supports only Standard SPI and Dual Output SPI (using SI/IO0 and SO). It does not implement Quad I/O instructions (e.g., 4-4-4 mode) or dedicated QSPI pins. Dual Output Read (3Bh) provides 2× throughput over standard SPI but remains dual-line, not quad-line.
What is the purpose of the HOLD# pin during multi-device SPI bus sharing?
HOLD# allows the S25FL208K0RMFI040 to pause an active SPI transaction without releasing CS# or resetting internal state - essential when another device on the shared bus needs immediate access. While HOLD# is asserted, SO goes high-impedance and SI/SCK are ignored, preserving command context until resumed.
Can sector protection be configured independently for different 4-kB regions?
Yes - the Status Register's BP0–BP3 bits define contiguous protected zones (e.g., top/bottom sectors or middle blocks). Combined with software write-enable control and WP# pin assertion, this enables selective locking of bootloader, app, or config sectors - preventing accidental overwrite while allowing runtime updates to unprotected regions.
S25FL208K0RMFI040 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL2-K
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 76 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
S25FL208K0RMFI040 FAQ
1.How can I place an order for S25FL208K0RMFI040 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL208K0RMFI040 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 S25FL208K0RMFI040 reliable?
The price and inventory of S25FL208K0RMFI040 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL208K0RMFI040 is usually 5 days.
3.What payment methods are accepted for S25FL208K0RMFI040?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL208K0RMFI040 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL208K0RMFI040?
S25FL208K0RMFI040 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL208K0RMFI040 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 S25FL208K0RMFI040?
For technical support, including S25FL208K0RMFI040 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL208K0RMFI040 requirements.
6.How does Aetrix verify that S25FL208K0RMFI040 is sourced from the original manufacturer or authorized distributors?
All S25FL208K0RMFI040 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 S25FL208K0RMFI040 meets industry standards.
7.What is the process for return or replacement of S25FL208K0RMFI040?
All S25FL208K0RMFI040 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL208K0RMFI040, 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 S25FL208K0RMFI040 part is unused and in its original packaging.
Return procedure for S25FL208K0RMFI040:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL208K0RMFI040 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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