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Microchip Technology SST25PF020B-80-4C-QAE-T
- Part No.:
- SST25PF020B-80-4C-QAE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25PF020B-80-4C-QAE-T.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,735
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Product details
Overview
SST25PF020B-80-4C-QAE-T from Microchip Technology is a 2-Mbit SPI serial Flash memory IC operating at 2.3V–3.6V, supporting 80 MHz clock frequency (2.7V–3.6V), uniform 4-Kbyte sector/32-Kbyte/64-Kbyte block erase, and Auto Address Increment (AAI) programming - deployed in embedded firmware storage for industrial controllers and IoT edge devices.
For engineers reviewing the SST25PF020B-80-4C-QAE-T datasheet, SST25PF020B-80-4C-QAE-T pinout, SST25PF020B-80-4C-QAE-T application, or SST25PF020B-80-4C-QAE-T equivalent, key selection criteria include SPI Mode 0/3 compatibility, 100,000-program/erase endurance, 5 µA standby current, RoHS-compliant 8-lead SOIC package, and hardware/software write protection with HOLD#/WP# pins.
Technical Context
This SPI Flash uses Microchip's proprietary SuperFlash® technology with split-gate cells and thick-oxide tunneling injectors, enabling faster erase (18 ms sector/35 ms chip) and lower total energy per operation versus conventional NOR Flash. It implements dual-status registers (STATUS and STATUS Register 1) for granular top/bottom sector protection and AAI Word programming with hardware RY/BY# status output on SO pin.
The device supports full SPI protocol compliance including Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), with CE#-synchronized command entry, rising-edge SI sampling, falling-edge SO output, and HOLD#-enabled pause without reset - critical for deterministic real-time firmware update sequences in resource-constrained microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as uniform 4-Kbyte sectors with 32-Kbyte and 64-Kbyte overlay blocks |
| Supply Voltage | 2.3V–3.6V single supply - enables direct interface with 2.5V/3.3V logic without level-shifting |
| Max Clock Frequency | 80 MHz at 2.7V–3.6V; 50 MHz at 2.3V–2.7V - determines maximum sustained read throughput (~8 MB/s) |
| Endurance & Retention | 100,000 program/erase cycles typical; >100 years data retention - suitable for field-upgradable firmware with infrequent writes |
| Active/Standby Current | 10 mA typical active read current; 5 µA typical standby current - reduces power budget in always-on edge nodes |
| Erase/Program Times | Chip erase: 35 ms typ; Sector/block erase: 18 ms typ; Byte program: 7 µs typ - enables fast firmware patching and configuration updates |
| Write Protection | Hardware WP# pin + software BP0/BP1/BPL bits + STATUS Register 1 TSP/BSP bits - supports hierarchical, lock-downable memory partitioning |
Pinout & Package
Package: 8-Lead SOIC (150 mil), JEDEC MS-012AC compliant, 5.3 mm × 4.4 mm footprint, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low enable signal; must remain low throughout command sequence; high-to-low transition initiates device selection |
| SO | Serial Data Output | Output-only data line; shifts data on SCK falling edge; reconfigurable as RY/BY# during AAI mode for hardware busy detection |
| WP# | Write Protect | Active-low pin enabling BPL bit lock-down; controls whether Block Protection bits can be modified via WRSR instruction |
| VSS | Ground | Reference ground terminal; requires low-impedance connection to system GND plane |
| VDD | Power Supply | 2.3V–3.6V supply input; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin |
| HOLD# | Hold Control | Active-low suspend signal; pauses ongoing SPI transaction without resetting address pointer or internal state |
| SCK | Serial Clock | Master-generated clock; rising edge latches SI, falling edge drives SO; supports Mode 0 (idle low) and Mode 3 (idle high) |
| SI | Serial Data Input | Input-only command/address/data line; sampled on SCK rising edge; MSb-first protocol |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell architecture with thick-oxide injector delivers 100K-cycle endurance and <100-year data retention at 85°C |
| Auto Address Increment (AAI) | Reduces multi-byte programming time by eliminating repeated address transmission - critical for OTA firmware image loading |
| Dual Status Registers | STATUS register (BP0/BP1/BPL/AAI/BUSY) + STATUS Register 1 (TSP/BSP) enable independent top/bottom sector locking and AAI mode tracking |
| Hardware Busy Detection | EBSY/DBSY commands reconfigure SO pin as RY/BY# output during AAI - eliminates polling overhead in time-critical bootloaders |
| Flexible Erase Granularity | 4-Kbyte sectors (for fine-grained config storage), 32-Kbyte blocks (for driver modules), and 64-Kbyte blocks (for application binaries) - optimizes update efficiency |
Applications
| Firmware Storage in Industrial PLCs | Secure Boot Configuration in Medical Devices |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Non-volatile firmware storage with deterministic read latency (<100 ns access), sector-locked bootloader region, and AAI-accelerated field updates. Use Value: Enables zero-downtime firmware patches via 4-Kbyte sector erase - avoids full reflash and preserves runtime calibration data in adjacent sectors. | Use Scenario: Holding cryptographically signed boot images and secure configuration parameters in FDA-cleared diagnostic equipment requiring tamper-resistant storage. IC Role / Device Role / Timing Role: Trusted execution environment (TEE) companion memory with hardware WP#-enabled lock-down of boot sector and STATUS register BPL bit. Use Value: Prevents unauthorized modification of boot code through dual-layer protection: WP#-enabled BPL bit + software-configured BP0/BP1 bits - meeting IEC 62304 Class C requirements. |
| OTA Update Buffer in Smart Meters | Firmware Log Storage in Automotive Telematics |
Use Scenario: Acting as intermediate storage for decrypted OTA firmware packages received over NB-IoT/LTE-M before validation and installation in main MCU flash. IC Role / Device Role / Timing Role: High-reliability temporary storage with 80 MHz read speed for rapid checksum verification and 18 ms sector erase for atomic rollback on failure. Use Value: Guarantees atomic update success/failure states using chip-erase fallback and BUSY-bit polling - eliminating partial-update corruption risk in intermittent connectivity scenarios. | Use Scenario: Recording vehicle event logs (DTCs, sensor snapshots, crash data) in telematics control units where power loss may occur during write operations. IC Role / Device Role / Timing Role: Crash-safe non-volatile logging memory with 7 µs byte program time and 5 µA standby current for always-on monitoring. Use Value: Ensures last-event persistence via short program time and low-power retention - meets ISO 26262 ASIL-B fault tolerance for post-crash data recovery. |
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, 104 MHz max clock, 1.65V–1.95V/2.7V–3.6V dual supply, Quad SPI support | Requires Quad SPI controller; lacks HOLD# pin; higher speed but narrower voltage range | Select when system uses Quad SPI interface and needs faster sequential reads; not drop-in for SST25PF020B-80-4C-QAE-T due to pin count and voltage mismatch |
| Cypress S25FL020L | 2 Mbit density, 104 MHz max clock, 2.7V–3.6V supply, Dual/Quad SPI, no HOLD# pin, different status register map | Supports Dual/Quad modes; no hardware HOLD# function; incompatible STATUS register bit definitions | Choose for systems needing Dual/Quad SPI bandwidth expansion; requires firmware adaptation for status handling and lacks suspend capability |
Compared with Winbond W25Q20EW and Cypress S25FL020L, the SST25PF020B-80-4C-QAE-T provides guaranteed HOLD# functionality, simpler SPI Mode 0/3 interface, and deterministic 80 MHz timing at 2.3V–3.6V - making it preferable for cost-sensitive, low-pin-count industrial designs requiring robust suspend/resume behavior.
Availability
SST25PF020B-80-4C-QAE-T is available at Aetrix Electronics and suitable for industrial automation controllers, medical diagnostic instruments, smart utility meters, and automotive telematics modules requiring stable component supply across extended product lifecycles.
Supply support for SST25PF020B-80-4C-QAE-T 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 emphasis on reliability, longevity, and industrial-grade qualification.
The SST25PF020B-80-4C-QAE-T belongs to Microchip's 25-series Serial Flash family, designed specifically for embedded firmware storage where low power, high endurance, and deterministic SPI timing are essential - targeting applications from factory automation to safety-critical medical systems.
FAQ
What is the maximum clock frequency supported by the SST25PF020B-80-4C-QAE-T?
The SST25PF020B-80-4C-QAE-T supports up to 80 MHz clock frequency when operating within the 2.7V–3.6V supply range, and 50 MHz at 2.3V–2.7V. This is specified in the official Microchip datasheet DS20005135C and verified across all supported SPI modes (Mode 0 and Mode 3). The '80' in the part number explicitly denotes the 80 MHz rating at nominal voltage.
Does the SST25PF020B-80-4C-QAE-T support both SPI Mode 0 and Mode 3?
Yes, the SST25PF020B-80-4C-QAE-T is fully compatible with both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as confirmed in Section 4.0 of the DS20005135C datasheet. It samples SI on the rising edge and drives SO on the falling edge in both modes, with SCK idle state differing between modes - enabling interoperability with diverse host controllers.
How does the HOLD# pin function on the SST25PF020B-80-4C-QAE-T?
The HOLD# pin on the SST25PF020B-80-4C-QAE-T suspends an ongoing SPI transaction without deselecting the device or resetting internal state. When asserted low while CE# is active, it places SO in high-impedance and pauses clock synchronization - allowing the host to service higher-priority interrupts and resume seamlessly. This behavior is electrically defined in Figure 4-2 and Section 4.1 of DS20005135C.
What write protection mechanisms are implemented in the SST25PF020B-80-4C-QAE-T?
The SST25PF020B-80-4C-QAE-T implements three-tiered write protection: (1) hardware WP# pin enabling BPL bit lock-down, (2) software-configurable BP0/BP1 bits in STATUS register for sector/block-level protection, and (3) TSP/BSP bits in STATUS Register 1 for independent top/bottom sector locking - all documented in Tables 4-1 through 4-4 of DS20005135C.
Is the SST25PF020B-80-4C-QAE-T RoHS compliant?
Yes, the SST25PF020B-80-4C-QAE-T is RoHS compliant, as explicitly stated in the "Features" section of the DS20005135C datasheet. This applies to all package variants (SOIC, USON, WSON) and confirms adherence to Directive 2011/65/EU for restricted hazardous substances.
SST25PF020B-80-4C-QAE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for SST25PF020B-80-4C-QAE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25PF020B-80-4C-QAE-T 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-T reliable?
The price and inventory of SST25PF020B-80-4C-QAE-T 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-T is usually 5 days.
3.What payment methods are accepted for SST25PF020B-80-4C-QAE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25PF020B-80-4C-QAE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25PF020B-80-4C-QAE-T?
SST25PF020B-80-4C-QAE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25PF020B-80-4C-QAE-T 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-T?
For technical support, including SST25PF020B-80-4C-QAE-T 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-T requirements.
6.How does Aetrix verify that SST25PF020B-80-4C-QAE-T is sourced from the original manufacturer or authorized distributors?
All SST25PF020B-80-4C-QAE-T 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-T meets industry standards.
7.What is the process for return or replacement of SST25PF020B-80-4C-QAE-T?
All SST25PF020B-80-4C-QAE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25PF020B-80-4C-QAE-T, 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-T part is unused and in its original packaging.
Return procedure for SST25PF020B-80-4C-QAE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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