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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Cypress Semiconductor Corp S25FL256LDPBHI020

Name: S25FL256LDPBHI020
Brand: Cypress Semiconductor Corp
SKU: S25FL256LDPBHI020
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S25FL256LDPBHI020

Manufacturer:: Cypress Semiconductor Corp

Category:: Memory

Package:: 24-TBGA

Datasheet:: S25FL256LDPBHI020.pdf

Description:: IC FLASH 256MBIT SPI/QUAD 24BGA

Quantity:: RFQ Add To RFQ list

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Inventory:230

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Product details

Overview

S25FL256LDPBHI020 from Infineon is a 256-Mbit serial NOR flash memory with Quad SPI interface, 1.8 V supply voltage, 133 MHz clock frequency, and uniform 256-byte programmable sectors. It serves as non-volatile code storage in microcontroller boot applications requiring fast read access and reliable retention.

For engineers reviewing the S25FL256LDPBHI020 datasheet, S25FL256LDPBHI020 pinout, S25FL256LDPBHI020 application, or S25FL256LDPBHI020 equivalent, key selection criteria include sector architecture compatibility, Quad SPI command set support, 1.8 V I/O tolerance, and industrial temperature range operation.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with extended Quad I/O mode supporting single/dual/quad read commands. It uses NOR architecture with 64-Kbyte erase blocks and 256-byte program pages, enabling precise firmware updates without full-chip erasure.

It features hardware write protection via WP# pin and software-controlled block protection (BP0–BP2 bits), supporting secure boot code locking. The device supports both volatile and non-volatile configuration register settings for flexible timing and mode selection.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Type	NOR flash - enables XIP (execute-in-place) execution directly from memory without loading to RAM
Capacity	256 Mbit (32 MByte) - sufficient for complex bootloader + firmware image storage
Interface	Quad SPI - delivers up to 532 MB/s effective throughput using four data lines
Supply Voltage	1.71–1.95 V - compatible with low-power 1.8 V system rails and reduces active power consumption
Operating Temp	−40°C to +105°C - qualified for industrial and automotive under-hood applications
Program Time	Max 1.2 ms per 256-byte page - enables rapid field firmware patching
Endurance	100,000 program/erase cycles - supports frequent OTA update deployments

Pinout & Package

Package: 8-pin SOIC (208 mil width), RoHS-compliant, surface-mountable with standard reflow profile.

Pin/Terminal	Circuit Role	Design Meaning
SO	Serial Output	Master-read data line; supports single/dual/quad output modes per instruction
SI	Serial Input	Master-write data/command/address input; used in all programming and configuration operations
WP#	Write Protect	Active-low hardware lock for top/bottom 4 KByte sectors; overrides software protection
HOLD#	Hold Function	Pauses ongoing serial transfer without resetting internal address counter
CLK	Serial Clock	Input clock synchronizing all SPI transactions; max 133 MHz for Quad Read
CS#	Chip Select	Active-low enable for device communication; required assertion before any command sequence
VCC	Power Supply	1.8 V core and I/O supply; decoupling capacitor placement critical for signal integrity
GND	Ground	Reference return path for all digital and analog functions; must be low-impedance connection

Key Features

Feature	Design Value
Uniform 256-byte sectors	Enables byte-level firmware patching without erasing adjacent functional code blocks
Quad Page Program	Reduces programming time by 4× vs. standard SPI, accelerating field update cycles
Non-volatile Configuration Register	Persists Quad Enable (QE) and latency settings across power cycles without external setup
Hardware Reset (RST#)	Provides deterministic recovery from bus hang or protocol error without power cycle
Security Register Lock	Prevents unauthorized modification of protection bits and configuration registers

Applications

Industrial PLC Firmware Storage

Automotive ADAS Boot Memory

Use Scenario: Storing boot loader and real-time control firmware in programmable logic controllers with periodic field updates.

IC Role / Device Role / Timing Role: Non-volatile code execution memory providing XIP capability and deterministic startup timing.

Use Value: Uniform sector size allows safe over-the-air patching of safety-critical control routines without disrupting runtime operation.

Use Scenario: Holding boot code and sensor fusion algorithms in camera-based driver assistance modules operating at −40°C to +105°C.

IC Role / Device Role / Timing Role: Primary boot memory mapped into MCU address space with guaranteed 133 MHz Quad Read access.

Use Value: Industrial temperature rating and hardware write protection ensure firmware integrity during vehicle cold cranking and thermal cycling.

Medical Imaging System BIOS

Network Edge Router Boot Image

Use Scenario: Storing diagnostic firmware and calibration tables in portable ultrasound devices requiring long-term data retention.

IC Role / Device Role / Timing Role: Secure, tamper-resistant boot memory with non-volatile configuration lock for regulatory compliance.

Use Value: 100,000 erase cycles and 20-year data retention meet IEC 62304 Class C software lifecycle requirements.

Use Scenario: Hosting primary bootloader and fail-safe recovery image in carrier-grade Ethernet routers with hot-swap power supplies.

IC Role / Device Role / Timing Role: Dual-die Quad SPI memory enabling concurrent read and program operations during firmware upgrade.

Use Value: Hardware reset (RST#) and hold functionality prevent corruption during unexpected power loss during upgrade sequences.

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
S25FL256SAGMFI000	3.0 V supply, 104 MHz max clock, same density and package	Designed for legacy 3.3 V systems; lacks 1.8 V I/O compatibility	Select when interfacing with older microcontrollers lacking 1.8 V SPI drivers
MX25L25645GMI-10G	1.8 V supply, 104 MHz clock, different sector architecture (4-KB/64-KB mix)	Requires firmware adaptation for erase granularity; no hardware reset pin	Choose only if existing design already uses Macronix command set and layout accommodates missing RST#

Compared with S25FL256SAGMFI000 and MX25L25645GMI-10G, the S25FL256LDPBHI020 offers higher Quad Read bandwidth, integrated hardware reset, and uniform sector sizing-critical for deterministic OTA updates in safety-certified systems.

Availability

S25FL256LDPBHI020 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS, medical imaging, and network infrastructure applications requiring stable component supply and long-term manufacturability.

Supply support for S25FL256LDPBHI020 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.

This part belongs to the Semper™ family of high-reliability NOR flash memories, designed specifically for mission-critical boot and code storage where data integrity, security, and long-term endurance are mandatory.

FAQ

What is the maximum clock frequency supported in Quad Read mode?

The S25FL256LDPBHI020 supports up to 133 MHz in Quad Read mode, delivering 532 MB/s effective throughput. This timing is validated across the full industrial temperature range and requires proper PCB layout with matched trace lengths and controlled impedance for all four data lines.

Does this device support execute-in-place (XIP) operation?

Yes, the S25FL256LDPBHI020 supports XIP operation via its NOR architecture and Quad SPI interface. The device provides deterministic read latency and continuous burst addressing, allowing microcontrollers to fetch and execute instructions directly from flash without intermediate RAM loading.

How is write protection implemented on this flash memory?

Write protection is implemented through dual mechanisms: hardware via the WP# pin (locking top/bottom 4 KB sectors), and software via BP0–BP2 bits in the status/configuration registers. Both methods can be combined, and hardware protection takes precedence over software settings.

Is a hardware reset pin available on this package?

Yes, the S25FL256LDPBHI020 includes an active-low RST# pin that performs a synchronous internal reset, clearing command latches and returning the device to standby state without requiring power cycling. This pin is present on all 8-pin SOIC variants of the Semper™ FL series.

S25FL256LDPBHI020 Specifications

Product attributes: Attribute value

Manufacturer:: Cypress Semiconductor Corp

Series:: FL-L

Package/Case:: 24-TBGA

Packaging:: Bulk

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:: 24-BGA (8x6)

S25FL256LDPBHI020 FAQ

1.How can I place an order for S25FL256LDPBHI020 through Aetrix?

Please submit a Request for Quotation (RFQ) for S25FL256LDPBHI020 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 S25FL256LDPBHI020 reliable?

The price and inventory of S25FL256LDPBHI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPBHI020 is usually 5 days.

3.What payment methods are accepted for S25FL256LDPBHI020?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPBHI020 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S25FL256LDPBHI020?

S25FL256LDPBHI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S25FL256LDPBHI020 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 S25FL256LDPBHI020?

For technical support, including S25FL256LDPBHI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPBHI020 requirements.

6.How does Aetrix verify that S25FL256LDPBHI020 is sourced from the original manufacturer or authorized distributors?

All S25FL256LDPBHI020 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 S25FL256LDPBHI020 meets industry standards.

7.What is the process for return or replacement of S25FL256LDPBHI020?

All S25FL256LDPBHI020 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPBHI020, 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 S25FL256LDPBHI020 part is unused and in its original packaging.

Return procedure for S25FL256LDPBHI020:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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