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Microchip Technology SST25PF020B-80-4C-QAE
- Part No.:
- SST25PF020B-80-4C-QAE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25PF020B-80-4C-QAE.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,002
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Product details
Overview
SST25PF020B-80-4C-QAE from Microchip Technology is a 2-Mbit SPI serial Flash memory IC with SuperFlash® technology, supporting 2.3V–3.6V single-supply operation, 80 MHz read speed (at 2.7V–3.6V), uniform 4-Kbyte sector/32-Kbyte/64-Kbyte block erase, and Auto Address Increment (AAI) programming. It serves as nonvolatile code/data storage in microcontroller boot loaders, firmware update buffers, and industrial HMI configuration storage.
For engineers reviewing the SST25PF020B-80-4C-QAE datasheet, SST25PF020B-80-4C-QAE pinout, SST25PF020B-80-4C-QAE application, or SST25PF020B-80-4C-QAE equivalent, key selection criteria include SPI Mode 0/3 compatibility, 5 µA standby current, HOLD#/WP# hardware protection, 100,000-program/erase endurance, and RoHS-compliant 8-lead SOIC (150 mil) packaging.
Technical Context
The SST25PF020B-80-4C-QAE implements a four-wire SPI interface with dual-mode clock polarity support (Mode 0 and Mode 3), enabling interoperability with diverse host controllers without protocol translation. Its split-gate SuperFlash® cell architecture delivers faster erase times (18 ms sector erase, 35 ms chip erase) and lower total energy per operation versus conventional NOR Flash.
Hardware-level data integrity is enforced via dedicated HOLD# (suspend active sequences without deselecting) and WP# (enable/disable STATUS register lock-down), while software control includes BUSY-bit polling, RY/BY# status output on SO during AAI mode, and dual STATUS registers (RDSR/RDSR1) for granular top/bottom sector protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 × 8-bit organization), sufficient for MCU boot code and parameter tables |
| Supply Voltage | 2.3V–3.6V single supply - eliminates need for level shifters in 3.3V systems |
| Max Clock Frequency | 80 MHz at 2.7V–3.6V - enables high-throughput firmware reads in real-time applications |
| Endurance | 100,000 program/erase cycles - supports frequent field updates in industrial logging systems |
| Data Retention | >100 years - ensures long-term reliability in unattended infrastructure equipment |
| Standby Current | 5 µA typical - critical for battery-backed IoT edge nodes requiring ultra-low quiescent power |
| Erase Granularity | Uniform 4-Kbyte sectors + 32-Kbyte/64-Kbyte overlay blocks - enables flexible partitioning of firmware and config space |
Pinout & Package
Package: 8-Lead SOIC (150 mil), JEDEC MS-012AC compliant, surface-mountable with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence to prevent premature termination |
| SO | Serial Data Output | Drives data on falling SCK edge; reconfigurable as RY/BY# status indicator during AAI programming |
| WP# | Write Protect | Enables BPL bit lock-down in STATUS register; prevents accidental modification of protection bits |
| VSS | Ground | Reference return path for all I/O and core logic; requires low-impedance PCB connection |
| VDD | Power Supply | 2.3V–3.6V input; decoupling capacitor (0.1 µF) required within 10 mm of pin |
| HOLD# | Hold Control | Suspends ongoing SPI transaction without resetting address pointer or clock state |
| SCK | Serial Clock | Provides timing reference; sampled on rising edge for inputs, drives outputs on falling edge |
| SI | Serial Data Input | Accepts commands, addresses, and data MSb-first; latched on rising SCK edge |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell design enables 35 ms chip erase and 7 µs byte program - reduces firmware update latency by >40% vs. legacy NOR |
| Auto Address Increment (AAI) | Eliminates repeated address transmission during multi-byte writes - cuts programming time by ~65% for full-array updates |
| Dual STATUS Registers | RDSR (BP0/BP1/BPL) + RDSR1 (TSP/BSP) enable independent top/bottom sector locking - prevents corruption of bootloader or calibration data |
| Hardware RY/BY# on SO | EBSY/DBSY commands repurpose SO as ready/busy indicator during AAI - removes software polling overhead in time-critical systems |
| Flexible Erase Blocks | 4-Kbyte sectors + 32/64-Kbyte overlays allow simultaneous firmware versioning and parameter storage - simplifies OTA update partitioning |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing firmware images and runtime parameters in programmable logic controllers deployed in factory automation environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding safety-critical control algorithms and calibrated I/O mapping tables. Use Value: 100-year data retention and 100,000-cycle endurance ensure reliable operation over 15+ year product lifecycles without field replacement. | Use Scenario: Holding patient-specific calibration data, device serial numbers, and regulatory compliance logs in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure configuration store with hardware write protection preventing unauthorized parameter changes. Use Value: WP#/HOLD# pins and BPL-locked STATUS register prevent accidental overwrite during hot-plug USB firmware updates. |
| Automotive Infotainment Bootloader | Smart Energy Meter Firmware Vault |
Use Scenario: Hosting secure bootloader code that validates signed firmware before loading into application RAM in automotive head units. IC Role / Device Role / Timing Role: Trusted execution root-of-trust component verifying cryptographic signatures prior to main processor initialization. Use Value: 80 MHz read speed enables sub-100ms bootloader validation, meeting ASIL-B timing constraints for display subsystems. | Use Scenario: Archiving tariff schedules, metering history, and utility communication keys in ANSI C12.22-compliant smart meters operating in outdoor enclosures. IC Role / Device Role / Timing Role: Tamper-resistant firmware vault with sector-level protection isolating billing logic from communication stacks. Use Value: Uniform 4-Kbyte sectors allow independent erasure of communication keys without affecting revenue-grade metering firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q20EW | 2 Mbit density, 104 MHz max clock, Quad SPI support, 1.65V–1.95V/2.7V–3.6V dual supply | Requires Quad SPI controller; lacks HOLD# pin; higher speed but narrower voltage range | Select when system demands faster random reads and supports QSPI interface; avoid if HOLD# functionality is required |
| Cypress S25FL032P | 32 Mbit density, 80 MHz clock, 2.7V–3.6V supply, no AAI programming, 100K endurance | Higher capacity but no Auto Address Increment; uses different status register layout and protection scheme | Select for larger firmware storage needs where AAI is not used; verify STATUS register compatibility before migration |
Compared with Winbond W25Q20EW and Cypress S25FL032P, the SST25PF020B-80-4C-QAE uniquely balances 80 MHz performance, hardware HOLD#/WP# controls, AAI acceleration, and 2.3V–3.6V operation - making it optimal for cost-sensitive, power-constrained embedded systems requiring robust field-upgrade capability.
Availability
SST25PF020B-80-4C-QAE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, and automotive infotainment bootloader applications requiring stable component supply across extended production lifecycles.
Supply support for SST25PF020B-80-4C-QAE 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
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and Flash memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The SST25PF020B-80-4C-QAE belongs to Microchip's 25-series Serial Flash family, engineered specifically for embedded systems requiring high-reliability, low-power, SPI-compatible nonvolatile storage in space-constrained designs.
FAQ
What is the maximum operating frequency of the SST25PF020B-80-4C-QAE and under what voltage conditions?
The SST25PF020B-80-4C-QAE supports a maximum clock frequency of 80 MHz when operating within the 2.7V–3.6V supply range. At lower voltages (2.3V–2.7V), the maximum frequency is reduced to 50 MHz. This voltage-dependent speed grading ensures timing compliance across the full specified operating range without external clock dividers or dynamic voltage scaling logic in the host system. The '80' in the part number explicitly denotes the 80 MHz rating at nominal 3.3V operation.
Does the SST25PF020B-80-4C-QAE support both SPI Mode 0 and Mode 3, and how does this affect host controller compatibility?
Yes, the SST25PF020B-80-4C-QAE is fully compatible with both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). This dual-mode support allows seamless integration with a broad range of microcontrollers-including ARM Cortex-M, PIC, and RISC-V families-without requiring hardware modifications or protocol translation layers. The device samples SI on the rising edge and drives SO on the falling edge in both modes, ensuring deterministic timing behavior regardless of idle clock polarity.
How does the HOLD# pin function in the SST25PF020B-80-4C-QAE, and what is its practical use case?
The HOLD# pin in the SST25PF020B-80-4C-QAE suspends an active SPI transaction without deselecting the device or resetting the internal address pointer. When asserted low during CE# active, it places SO in high-impedance while preserving SCK and SI states, allowing the host to service higher-priority interrupts and resume exactly where it left off. This is essential in real-time systems like motor drives, where uninterrupted firmware reads must coexist with time-critical PWM updates without introducing bus contention or address misalignment.
What erase options are available in the SST25PF020B-80-4C-QAE, and how do they impact firmware update strategies?
The SST25PF020B-80-4C-QAE provides three erase granularities: uniform 4-Kbyte sectors, 32-Kbyte overlay blocks, and 64-Kbyte overlay blocks. This hierarchy enables efficient firmware update schemes - for example, using 4-Kbyte sectors to patch individual driver modules, 32-Kbyte blocks for application binaries, and 64-Kbyte blocks for full-image recovery. Chip erase (35 ms typical) remains available for complete reinitialization. All erase operations are hardware-protected via BP0/BP1 bits and lockable with BPL, preventing accidental bulk erasure during partial updates.
Is the SST25PF020B-80-4C-QAE RoHS compliant, and what package variants does it support?
Yes, the SST25PF020B-80-4C-QAE is fully RoHS compliant per EU Directive 2011/65/EU. It is offered in three package variants: 8-Lead SOIC (150 mil), 8-Contact USON (3 mm × 2 mm), and 8-Contact WSON (6 mm × 5 mm). The 'QAE' suffix specifically denotes the 8-Lead SOIC (150 mil) variant, which features industry-standard footprint compatibility, mature assembly processes, and thermal performance validated for industrial temperature operation (0°C to +70°C).
SST25PF020B-80-4C-QAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 80 MHz
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- -
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
SST25PF020B-80-4C-QAE FAQ
1.How can I place an order for SST25PF020B-80-4C-QAE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25PF020B-80-4C-QAE 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 SST25PF020B-80-4C-QAE reliable?
The price and inventory of SST25PF020B-80-4C-QAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25PF020B-80-4C-QAE is usually 5 days.
3.What payment methods are accepted for SST25PF020B-80-4C-QAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25PF020B-80-4C-QAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25PF020B-80-4C-QAE?
SST25PF020B-80-4C-QAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25PF020B-80-4C-QAE 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 SST25PF020B-80-4C-QAE?
For technical support, including SST25PF020B-80-4C-QAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25PF020B-80-4C-QAE requirements.
6.How does Aetrix verify that SST25PF020B-80-4C-QAE is sourced from the original manufacturer or authorized distributors?
All SST25PF020B-80-4C-QAE 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 SST25PF020B-80-4C-QAE meets industry standards.
7.What is the process for return or replacement of SST25PF020B-80-4C-QAE?
All SST25PF020B-80-4C-QAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25PF020B-80-4C-QAE, 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 SST25PF020B-80-4C-QAE part is unused and in its original packaging.
Return procedure for SST25PF020B-80-4C-QAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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