Infineon Technologies S25FL204K0TMFI010
- Part No.:
- S25FL204K0TMFI010
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
S25FL204K0TMFI010.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,043
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Product details
Overview
S25FL204K0TMFI010 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, 100k erase/program cycles, and industrial temperature range (–40°C to +85°C). It serves as nonvolatile code/data storage in microcontroller boot systems, firmware update buffers, and configuration parameter retention.
For engineers reviewing the S25FL204K0TMFI010 datasheet, S25FL204K0TMFI010 pinout, S25FL204K0TMFI010 application, or S25FL204K0TMFI010 equivalent, key selection criteria include sector granularity (4 kB), dual-output read capability for fast code shadowing, hardware write protection via WP# pin, and SOIC-8 industrial-grade packaging.
Technical Context
The S25FL204K0TMFI010 implements a uniform flash architecture with 128 × 4-kB sectors and 8 × 64-kB blocks, enabling flexible firmware partitioning and over-the-air update staging. Its SPI interface supports Mode 0 and Mode 3 clocking, with dual-output read (3Bh command) using SI/IO0 and SO simultaneously for 2× data throughput versus standard SPI.
Internal control logic includes status register-based software write protection (BP0–BP3, SRP bits) and hardware-level protection via WP# and HOLD# pins. Erase operations are supported at page (256 B), sector (4 kB), block (64 kB), and chip levels, with typical program time of 1.5 ms per page and 50 ms per sector.
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 - enables direct interfacing with 3.3 V microcontrollers without level shifting |
| Max SPI Clock | 85 MHz - supports fast boot code loading and high-throughput firmware updates |
| Erase Endurance | 100,000 cycles - sufficient for frequent field firmware upgrades in industrial controllers |
| Data Retention | 20 years - ensures long-term reliability in unpowered storage of calibration or device identity data |
| Operating Temp | –40°C to +85°C - qualified for industrial automation, motor drives, and outdoor edge nodes |
| Active Current | 12 mA typical - compatible with low-power MCU sleep/wake architectures during read bursts |
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 communication; high impedance on SO when deasserted; required low-to-high transition before new instruction acceptance |
| SCK | Serial Clock Input | Drives timing for all SPI transfers; rising edge latches input data (SI/IO0), falling edge outputs data (SO/SI) |
| SI/IO0 | Serial Input / Dual Output | Input for commands/addresses/data; becomes output during Fast Read Dual Output (3Bh) for concurrent 2-bit data transfer |
| SO | Serial Output | Primary output for standard SPI reads; remains active during dual-output mode alongside SI/IO0 |
| WP# | Hardware Write Protect | Locks status register writes when asserted low; works with BP bits to protect specific sectors/blocks |
| HOLD# | Communication Pause | Halts ongoing SPI transaction without deselecting device; preserves internal state for multi-master arbitration |
| VCC | Power Supply | 2.7–3.6 V supply; powers core logic, charge pumps, and I/O buffers |
| GND | Ground Reference | Common return path for all signals and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Dual Output Read (3Bh) | Enables 2× read bandwidth vs. standard SPI-critical for rapid code shadowing into RAM at boot |
| Uniform 4-kB Sectors | Allows fine-grained firmware partitioning (e.g., separate bootloader, app, config sections) without wasted space |
| Hardware + Software WP | Combines WP# pin control with status register BP bits for layered protection against accidental erase/write |
| Auto-increment Read | Supports continuous sequential reads across page boundaries without reissuing address-reduces host overhead |
| Deep Power-down Mode | Reduces current to <1 µA-ideal for battery-backed systems requiring ultra-low standby power |
Applications
| Industrial PLC Firmware Storage | Automotive ECU Boot Code |
|---|---|
Use Scenario: Storing ladder logic programs and I/O mapping tables in programmable logic controllers with field-upgrade capability. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding executable firmware and runtime configuration parameters. Use Value: 4-kB sector granularity enables atomic updates of individual function modules without erasing full application image. | Use Scenario: Holding boot loader and safety-critical startup routines in engine control units operating under wide thermal stress. IC Role / Device Role / Timing Role: Primary SPI-connected flash for cold-start execution and secure firmware validation prior to main MCU initialization. Use Value: Industrial temperature rating (–40°C to +85°C) and 20-year data retention ensure reliability across vehicle lifetime. |
| Smart Meter Parameter Retention | Medical Device Calibration Data |
Use Scenario: Preserving tariff schedules, metering constants, and tamper logs in ANSI C12.22-compliant utility meters with infrequent but critical writes. IC Role / Device Role / Timing Role: Parameter storage with hardware write protection to prevent corruption during brown-out or reset events. Use Value: WP# pin + status register lock prevents unintended writes during power transitions-meeting IEC 62056-21 robustness requirements. | Use Scenario: Storing sensor calibration coefficients and device-specific safety thresholds in portable diagnostic equipment requiring traceable accuracy. IC Role / Device Role / Timing Role: Secure, long-term nonvolatile memory for FDA-regulated configuration data with audit trail integrity. Use Value: 100k erase/program cycles support recalibration over 10+ years of clinical use without wear-out risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L4006EM1I-12G | 4 Mbit, 3V, SOIC-8, 80 MHz max clock; lacks dual-output read mode | Lower read bandwidth limits suitability for fast code shadowing; adequate for static config storage | Select when dual-output is unnecessary and cost sensitivity outweighs performance needs |
| S25FL104K0XMFI010 | Same family, 4 Mbit, but 105°C extended temp grade and 100 MHz clock; pin-compatible | Valid for automotive under-hood use where ambient exceeds +85°C | Choose for AEC-Q100-compliant designs requiring higher thermal margin |
Compared with MX25L4006EM1I-12G, the S25FL204K0TMFI010 delivers 6% faster read clocks and dual-output capability for accelerated boot; versus S25FL104K0XMFI010, it trades extended temperature for lower cost while retaining identical sector architecture and command set.
Availability
S25FL204K0TMFI010 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code, and smart meter parameter retention requiring stable component supply and long-lifecycle support.
Supply support for S25FL204K0TMFI010 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 leader in high-performance embedded memory and programmable solutions, founded in 1982 and headquartered in San Jose, CA.
The S25FL family was designed specifically for reliable, low-power serial flash applications in automotive, industrial, and consumer systems requiring robust code execution and field-upgradable firmware storage.
FAQ
What SPI modes does the S25FL204K0TMFI010 support?
The device 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 SCK polarity-low in Mode 0, high in Mode 3-ensuring compatibility with most MCU SPI peripherals without protocol translation.
Can the S25FL204K0TMFI010 be used for code execution directly from flash (XIP)?
No, the S25FL204K0TMFI010 does not support execute-in-place (XIP). It is a serial NOR flash optimized for fast read and firmware storage, requiring code to be copied to RAM before execution. Its dual-output read mode accelerates this copy process but does not enable direct CPU instruction fetch over SPI.
How is hardware write protection implemented on this device?
Hardware write protection uses the WP# pin to lock status register writes when asserted low. Combined with BP0–BP3 bits in the status register, it enables selective protection of 4-kB sectors or 64-kB blocks. Protection remains active even after power cycling, and WP# must be high to modify BP bits-providing defense against accidental or malicious reconfiguration.
Is the S25FL204K0TMFI010 compatible with JEDEC-standard identification commands?
Yes, it supports JEDEC-standard manufacturer and device ID reads via commands 90h (Read Manufacturer/Device ID) and 9Fh (Read Identification). These return fixed byte sequences identifying Cypress/Spansion as manufacturer (01h) and the S25FL204K as device (4015h), enabling automated BOM verification and firmware auto-detection in production test systems.
S25FL204K0TMFI010 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL2-K
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tray
- 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
S25FL204K0TMFI010 FAQ
1.How can I place an order for S25FL204K0TMFI010 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL204K0TMFI010 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 S25FL204K0TMFI010 reliable?
The price and inventory of S25FL204K0TMFI010 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL204K0TMFI010 is usually 5 days.
3.What payment methods are accepted for S25FL204K0TMFI010?
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4.How is shipping managed for S25FL204K0TMFI010?
S25FL204K0TMFI010 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL204K0TMFI010 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 S25FL204K0TMFI010?
For technical support, including S25FL204K0TMFI010 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL204K0TMFI010 requirements.
6.How does Aetrix verify that S25FL204K0TMFI010 is sourced from the original manufacturer or authorized distributors?
All S25FL204K0TMFI010 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 S25FL204K0TMFI010 meets industry standards.
7.What is the process for return or replacement of S25FL204K0TMFI010?
All S25FL204K0TMFI010 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL204K0TMFI010, 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 S25FL204K0TMFI010 part is unused and in its original packaging.
Return procedure for S25FL204K0TMFI010:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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