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Microchip Technology SST25PF020B-80-4C-Q3AE
- Part No.:
- SST25PF020B-80-4C-Q3AE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
SST25PF020B-80-4C-Q3AE.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8USON
- Quantity:
- Payment:
- Shipping:
Inventory:2,574
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Product details
Overview
SST25PF020B-80-4C-Q3AE from Microchip Technology is a 2 Mbit SPI serial flash memory IC with SuperFlash technology, supporting single-supply operation (2.3–3.6 V), 80 MHz high-speed read (at 2.7–3.6 V), uniform 4 KByte sectors, and Auto Address Increment (AAI) programming. It serves as non-volatile program/data storage in microcontroller boot loaders, firmware update buffers, and IoT edge device configuration storage.
For engineers reviewing the SST25PF020B-80-4C-Q3AE datasheet, SST25PF020B-80-4C-Q3AE pinout, SST25PF020B-80-4C-Q3AE application, or SST25PF020B-80-4C-Q3AE equivalent, key selection considerations include its 8-contact USON (3 mm × 2 mm) package, hardware RY/BY# status output via SO during AAI mode, sector/block/whole-chip erase flexibility, and dual SPI mode (0 and 3) compatibility.
Technical Context
The SST25PF020B-80-4C-Q3AE implements a four-wire SPI interface with dedicated CE#, SCK, SI, and SO lines, plus HOLD# and WP# control pins for suspend and write protection. Its internal architecture features a split-gate SuperFlash memory cell enabling faster erase (18 ms sector-erase typical) and lower energy per operation versus conventional NOR flash.
It supports two end-of-write detection methods: software polling of the BUSY bit in Status Register, and hardware RY/BY# output on SO during AAI programming-enabled via EBSY (70H) command. Block protection is configurable via BP1/BP0 bits (0–100% array coverage) and lockable via BPL bit when WP# is low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as uniform 4 KByte sectors (64 sectors) |
| Supply Voltage | 2.3–3.6 V - enables direct interfacing with 2.5 V and 3.3 V logic without level shifters |
| Max Clock Frequency | 80 MHz (2.7–3.6 V) - supports high-throughput firmware reads in resource-constrained embedded systems |
| Erase Time (Sector) | 18 ms typical - reduces firmware update latency compared to legacy SPI flash parts |
| Program Time (Byte) | 7 µs typical - enables rapid patching of small configuration fields without long blocking delays |
| Data Retention | >100 years - ensures reliable storage of calibration data and security keys over product lifetime |
| Endurance | 100,000 program/erase cycles - sufficient for field-updatable firmware with frequent minor revisions |
Pinout & Package
Package: 8-contact USON (3 mm × 2 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence; deassertion returns device to standby |
| SCK | Serial Clock | Timing reference for SPI; rising edge latches input (SI), falling edge outputs data (SO); supports Mode 0 and Mode 3 |
| SI | Serial Data Input | Receives opcodes, addresses, and data; MSB-first, synchronized to SCK rising edge |
| SO | Serial Data Output / RY/BY# | Outputs read data or Flash busy status (when configured via EBSY command during AAI mode) |
| WP# | Write Protect | Enables BPL bit lock-down; when low, prevents modification of BP1/BP0 unless BPL = 0 |
| HOLD# | Hold Control | Suspends ongoing SPI transaction without resetting clock state; allows host to service higher-priority interrupts |
| VDD | Power Supply | 2.3–3.6 V supply; powers core logic and memory array; no external regulator required |
| VSS | Ground | Reference return path for all I/O and internal circuitry; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell design enables 100,000-cycle endurance and >100-year retention with lower program current than standard NOR flash |
| Auto Address Increment (AAI) | Reduces multi-byte programming time by eliminating repeated address transmission; supports sequential word writes with single ADH command |
| Dual SPI Mode Support | Compatible with both Mode 0 (SCK idle low) and Mode 3 (SCK idle high), easing integration into diverse MCU SPI peripherals |
| Flexible Erase Granularity | Independent 4 KByte sector, 32 KByte block, 64 KByte block, and full-chip erase options enable precise wear leveling and partial firmware updates |
| Hardware End-of-Write Detection | SO pin reconfigured as RY/BY# during AAI mode eliminates software polling overhead and improves real-time responsiveness |
| Configurable Block Protection | BP1/BP0 bits support four protection levels (none to full array); TSP/BSP bits allow independent top/bottom sector locking |
Applications
| MCU Boot Code Storage | Firmware Update Buffer |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image for ARM Cortex-M or RISC-V microcontrollers. IC Role / Device Role / Timing Role: Non-volatile storage for executable code executed directly or copied to RAM at power-on reset. Use Value: 80 MHz high-speed read enables sub-100 ms boot time; 4 KByte sector erase allows safe in-field bootloader updates without disrupting active firmware. |
Use Scenario: Holding validated firmware images prior to atomic swap during over-the-air (OTA) updates in battery-powered edge nodes. IC Role / Device Role / Timing Role: Dual-bank staging area where new firmware is written to erased blocks while legacy code runs from protected sectors. Use Value: AAI programming reduces OTA write time by >40% vs. byte-program; hardware RY/BY# signaling enables deterministic update scheduling. |
| IoT Device Configuration Storage | Industrial Sensor Calibration Data |
Use Scenario: Persisting Wi-Fi credentials, MQTT broker settings, and user-defined thresholds in smart home sensors. IC Role / Device Role / Timing Role: Parameter storage accessed infrequently but requiring guaranteed retention across 10+ years of operation. Use Value: >100-year data retention and 100,000-cycle endurance ensure settings survive repeated battery replacements and firmware upgrades. |
Use Scenario: Recording factory-calibrated offset/gain coefficients and temperature compensation tables for precision analog sensor modules. IC Role / Device Role / Timing Role: Immutable reference data storage accessed only at sensor initialization or recalibration events. Use Value: Block-protection bits (BP1/BP0) prevent accidental overwrite; top/bottom sector lock (TSP/BSP) isolates calibration data from application firmware partitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI serial flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q20EW | 2 Mbit density, 133 MHz max clock, 1.65–1.95 V or 2.7–3.6 V dual voltage, Quad SPI support | Requires Quad SPI controller; higher speed but narrower voltage range; no HOLD# pin | Select for designs needing faster read throughput and Quad SPI capability; verify voltage compatibility and absence of HOLD# requirement |
| Cypress S25FL004A | 4 Mbit density, 66 MHz max clock, 2.7–3.6 V, supports SFDP and 4-byte addressing | Double density increases buffer headroom; lacks AAI programming and hardware RY/BY# on SO | Select when larger capacity is needed and AAI/hardware busy signaling are not critical; note different erase granularity (64 KByte only) |
Compared with SST25PF020B-80-4C-Q3AE, W25Q20EW offers higher bandwidth but removes HOLD# and requires Quad SPI infrastructure, while S25FL004A doubles capacity but sacrifices AAI efficiency and real-time busy signaling-making SST25PF020B-80-4C-Q3AE optimal for compact, low-overhead SPI boot and configuration storage.
Availability
SST25PF020B-80-4C-Q3AE is available at Aetrix Electronics and suitable for MCU boot code storage, firmware update buffering, and IoT device configuration storage requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SST25PF020B-80-4C-Q3AE 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with a focus on reliability, longevity, and embedded system integration.
The SST25PF020B-80-4C-Q3AE belongs to Microchip's 25 series Serial Flash family, designed specifically for cost-sensitive, space-constrained embedded applications demanding high reliability, low power, and seamless SPI interoperability with mainstream MCUs.
FAQ
What is the operating voltage range for SST25PF020B-80-4C-Q3AE?
The SST25PF020B-80-4C-Q3AE operates from 2.3 V to 3.6 V. At 2.7–3.6 V, it achieves 80 MHz maximum clock frequency and full specification performance; at 2.3–2.7 V, maximum clock drops to 50 MHz. This single-supply range eliminates need for external voltage translation in 2.5 V or 3.3 V systems, and the SST25PF020B-80-4C-Q3AE maintains full functionality-including AAI programming and hardware RY/BY#-across the entire voltage window.
Does SST25PF020B-80-4C-Q3AE support both SPI Mode 0 and Mode 3?
Yes, the SST25PF020B-80-4C-Q3AE explicitly supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as confirmed in Section 4.0 of DS25135A. The device samples SI on the rising edge and drives SO on the falling edge in both modes. This dual-mode compatibility allows direct interfacing with a wide range of microcontroller SPI peripherals without requiring clock polarity or phase reconfiguration, and the SST25PF020B-80-4C-Q3AE does not require mode-specific initialization sequences.
How does hardware end-of-write detection work on SST25PF020B-80-4C-Q3AE?
Hardware end-of-write detection on the SST25PF020B-80-4C-Q3AE reconfigures the SO pin as an open-drain RY/BY# signal during Auto Address Increment (AAI) programming. After issuing the EBSY (70H) command, the SO pin outputs '0' while busy and '1' when ready-eliminating software polling. The SST25PF020B-80-4C-Q3AE requires WRDI + DBSY (80H) to exit this mode. This feature reduces CPU overhead and enables deterministic timing in real-time firmware update routines using the SST25PF020B-80-4C-Q3AE.
What erase granularities are supported by SST25PF020B-80-4C-Q3AE?
The SST25PF020B-80-4C-Q3AE supports four erase granularities: uniform 4 KByte sectors (64 total), 32 KByte overlay blocks, 64 KByte overlay blocks, and full-chip erase. Sector-erase uses opcode 20H with A12 address bit; 32 KByte block-erase uses 52H with A15; 64 KByte uses D8H with A16; chip-erase uses 60H or C7H. All erase operations are self-timed, with typical durations of 18 ms (sector), and the SST25PF020B-80-4C-Q3AE retains full write protection and status register functionality during erase execution.
Is SST25PF020B-80-4C-Q3AE pin-compatible with other packages in the SST25PF020B family?
No-SST25PF020B-80-4C-Q3AE uses an 8-contact USON (3 mm × 2 mm) package, while other variants use 8-lead SOIC (150 mils) or 8-contact WSON (6 mm × 5 mm). Though all share identical pin functions and ordering (CE#, SO, WP#, VSS, VDD, HOLD#, SCK, SI), the USON footprint is physically distinct and not mechanically interchangeable. The SST25PF020B-80-4C-Q3AE requires its specific land pattern; migration between packages demands PCB redesign, even though electrical behavior and command set are identical across the SST25PF020B family.
SST25PF020B-80-4C-Q3AE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Bag
- Product Status:
- Obsolete
- 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-USON (3x2)
SST25PF020B-80-4C-Q3AE FAQ
1.How can I place an order for SST25PF020B-80-4C-Q3AE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25PF020B-80-4C-Q3AE 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-Q3AE reliable?
The price and inventory of SST25PF020B-80-4C-Q3AE 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-Q3AE is usually 5 days.
3.What payment methods are accepted for SST25PF020B-80-4C-Q3AE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25PF020B-80-4C-Q3AE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25PF020B-80-4C-Q3AE?
SST25PF020B-80-4C-Q3AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25PF020B-80-4C-Q3AE 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-Q3AE?
For technical support, including SST25PF020B-80-4C-Q3AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25PF020B-80-4C-Q3AE requirements.
6.How does Aetrix verify that SST25PF020B-80-4C-Q3AE is sourced from the original manufacturer or authorized distributors?
All SST25PF020B-80-4C-Q3AE 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-Q3AE meets industry standards.
7.What is the process for return or replacement of SST25PF020B-80-4C-Q3AE?
All SST25PF020B-80-4C-Q3AE units undergo pre-shipment inspection (PSI). If there is an issue with SST25PF020B-80-4C-Q3AE, 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-Q3AE part is unused and in its original packaging.
Return procedure for SST25PF020B-80-4C-Q3AE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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