Infineon Technologies S25FL204K0TMFI011
- Part No.:
- S25FL204K0TMFI011
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
S25FL204K0TMFI011.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,303
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Product details
Overview
S25FL204K0TMFI011 from Cypress Semiconductor is a 4-Mbit (512 kB) 3.0 V SPI Flash memory with uniform 4-kbyte sectors and 64-kbyte blocks, supporting standard and dual-output SPI up to 85 MHz clock rate, 1.5 ms page program time, and 100k erase/program cycles - deployed for firmware storage and code shadowing in microcontroller boot loaders.
For engineers reviewing the S25FL204K0TMFI011 datasheet, S25FL204K0TMFI011 pinout, S25FL204K0TMFI011 application, or S25FL204K0TMFI011 equivalent, key selection criteria include sector granularity (4 kB), dual-output read capability, industrial temperature range (–40°C to +85°C), RoHS-compliant 8-pin SOIC package, and hardware write protection via WP# pin.
Technical Context
The S25FL204K0TMFI011 implements a uniform flash architecture with 128 × 4-kB sectors and 8 × 64-kB blocks, enabling selective erasure without full-chip operations. It supports SPI Mode 0 and Mode 3 with rising-edge input sampling and falling-edge output timing.
Dual Output Read (0x3B command) repurposes the SI/IO0 pin as a second data output during fast read cycles, doubling throughput versus standard SPI. The HOLD# pin enables transaction pausing while maintaining chip select assertion, critical for multi-device SPI bus arbitration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 kbyte), organized as 2048 × 256-byte pages |
| Supply Voltage | 2.7 V to 3.6 V - single-supply operation compatible with 3.3 V I/O domains |
| Max Clock Rate | 85 MHz for both Standard Read and Dual Output Read - enables ≤24 ns per byte transfer in dual mode |
| Erase Granularity | 4 kB sector / 64 kB block - allows fine-grained firmware partitioning and OTA update safety |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention at 85°C - suitable for field-deployed embedded systems |
| Power Consumption | 12 mA active current; 15 µA standby - supports low-power boot loader and sleep-mode firmware access |
| Write Protection | Hardware (WP# pin) + software (Status Register BP bits) - prevents accidental firmware overwrite during runtime |
Pinout & Package
Package: 8-pin SOIC (208-mil body, 1.27 mm pitch), RoHS-compliant, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select (active-low) | Enables serial interface and transitions device between standby (high-Z SO) and active (12 mA) power states |
| SCK | Serial Clock Input | Drives all SPI timing; rising edge latches input (SI/IO0), falling edge outputs data (SO/SI) |
| SI/IO0 | Serial Input / Dual-Output Data | Input for commands/addresses/data; becomes second output during Fast Read Dual Output (0x3B) |
| SO | Serial Output | Primary data output pin; driven during all read operations including dual-output mode |
| WP# | Write Protect (active-low) | Hardware lock for Status Register writes; used with BP bits to protect specific memory regions |
| HOLD# | Hold Input (active-low) | Pauses ongoing SPI transaction without deselecting chip - essential for shared-bus arbitration |
| VCC | Supply Voltage | 2.7–3.6 V power rail; powers internal charge pump for erase/program operations |
| GND | Ground Reference | Return path for VCC and all I/O signals; must be low-impedance for stable timing and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Dual Output Read (0x3B) | Enables 2× data throughput vs. standard SPI - reduces boot time when copying firmware to RAM |
| Uniform 4-kB Sector Erase | Allows safe over-the-air (OTA) updates by erasing only modified parameter or configuration sectors |
| Hardware Write Protection (WP#) | Physically disables Status Register modification - prevents corruption of BP bits during voltage transients |
| Auto-increment Read | Supports continuous sequential reads without reissuing address - simplifies bootloader memory mapping logic |
| JEDEC ID Support (0x9F) | Enables runtime device identification and firmware compatibility validation in multi-vendor BOMs |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Loader |
|---|---|
Use Scenario: Storing firmware images and calibration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with guaranteed 20-year retention at 85°C and 100k endurance for field firmware updates. Use Value: Uniform 4-kB sectors allow isolated update of control logic without erasing safety-critical configuration data. | Use Scenario: Hosting boot code and diagnostic routines in FDA-cleared patient monitoring equipment requiring traceable firmware revisions. IC Role / Device Role / Timing Role: SPI-connected boot memory accessed by ARM Cortex-M4 during cold start; dual-output read accelerates initialization. Use Value: Hardware WP# pin prevents accidental register writes during ESD events - ensuring boot integrity compliance. |
| Automotive Body Control Module | Smart Home Gateway Firmware |
Use Scenario: Storing CAN gateway firmware and vehicle-specific configuration in body control modules across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Industrial-grade SPI Flash interfaced to Infineon AURIX TC3xx MCU; supports fast read for real-time diagnostics. Use Value: 85 MHz dual-output read reduces boot latency below 100 ms - meeting automotive ASAM-STEP timing requirements. | Use Scenario: Holding Linux kernel, device drivers, and OTA update staging area in Wi-Fi/Zigbee gateways deployed in residential HVAC systems. IC Role / Device Role / Timing Role: Code-shadowing target for MIPS-based SoC; 64-kB block erase enables atomic firmware swap without service interruption. Use Value: 15 µA standby current extends battery backup runtime during AC power loss - sustaining network connectivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L4006EM1I-12G | 4 Mbit, 104 MHz max clock, 3.3 V only, no dual-output mode | Lacks dual-output read; requires higher clock stability margin for equivalent throughput | Select when maximum clock speed >85 MHz is required and dual-output is unused |
| W25Q40EWUXIE | 4 Mbit, 133 MHz, quad I/O support, 1.8 V/3.3 V dual supply | Supports QPI mode and lower voltage; different command set and status register layout | Select for designs migrating to quad-SPI or requiring 1.8 V I/O compatibility |
Compared with MX25L4006EM1I-12G and W25Q40EWUXIE, the S25FL204K0TMFI011 uniquely balances industrial temperature support, dual-output acceleration, and hardware write protection in a mature 8-pin SOIC footprint - making it optimal for cost-sensitive, reliability-critical boot memory where quad-SPI complexity is unnecessary.
Availability
S25FL204K0TMFI011 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot loaders, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S25FL204K0TMFI011 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 since 2020) is a U.S.-based semiconductor company founded in 1982, specializing in high-reliability embedded memory, microcontrollers, and connectivity solutions.
The S25FL family was developed by Spansion (acquired by Cypress in 2015) specifically for industrial and automotive applications demanding robust SPI Flash with flexible erase granularity, hardware security features, and extended temperature operation.
FAQ
What SPI modes does the S25FL204K0TMFI011 support?
The S25FL204K0TMFI011 supports SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). In both modes, data is latched on the rising edge of SCK and output on the falling edge. The difference lies only in idle clock polarity - critical for interoperability with host MCUs like STM32 or NXP Kinetis that enforce strict mode compliance.
Does the S25FL204K0TMFI011 support Quad SPI (QSPI)?
No, the S25FL204K0TMFI011 does not support Quad SPI. It supports Standard SPI (4-pin: CS#, SCK, SI, SO) and Dual Output SPI (5-pin: CS#, SCK, SI/IO0, SO, WP#, HOLD#), where SI/IO0 serves as a second data output during Fast Read Dual Output (0x3B) commands - but not as a bidirectional quad lane.
How is hardware write protection implemented on this device?
Hardware write protection uses the active-low WP# pin to disable writes to the Status Register, which controls Block Protect (BP) bits. When WP# is held low, the SRP bit cannot be altered, locking BP0–BP3 settings and preventing accidental sector/block protection changes - even during brown-out or reset conditions.
What is the significance of the "011" suffix in S25FL204K0TMFI011?
The "011" suffix indicates tube packaging (1 = tube), industrial temperature grade (I), Pb-free SOIC package (F), and 8-pin SOIC body (M). Specifically: "01" = 208-mil SOIC package model, "1" = tube packing - distinguishing it from tray (0) or tape-and-reel (3) variants with identical electrical specs.
S25FL204K0TMFI011 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL2-K
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 85 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
S25FL204K0TMFI011 FAQ
1.How can I place an order for S25FL204K0TMFI011 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL204K0TMFI011 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 S25FL204K0TMFI011 reliable?
The price and inventory of S25FL204K0TMFI011 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL204K0TMFI011 is usually 5 days.
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S25FL204K0TMFI011 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL204K0TMFI011 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 S25FL204K0TMFI011?
For technical support, including S25FL204K0TMFI011 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL204K0TMFI011 requirements.
6.How does Aetrix verify that S25FL204K0TMFI011 is sourced from the original manufacturer or authorized distributors?
All S25FL204K0TMFI011 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 S25FL204K0TMFI011 meets industry standards.
7.What is the process for return or replacement of S25FL204K0TMFI011?
All S25FL204K0TMFI011 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL204K0TMFI011, 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 S25FL204K0TMFI011 part is unused and in its original packaging.
Return procedure for S25FL204K0TMFI011:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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