My Inquiry
My Account
Microchip Technology SST25VF020B-80-4I-QAE
- Part No.:
- SST25VF020B-80-4I-QAE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25VF020B-80-4I-QAE.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,334
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST25VF020B-80-4I-QAE from Microchip Technology is a 2-Mbit SPI serial Flash memory IC designed for embedded firmware storage and code execution in resource-constrained systems. It operates from a single 2.7V–3.6V supply, supports up to 80 MHz high-speed read, delivers 100,000 program/erase cycles, and retains data for >100 years - deployed in industrial microcontroller boot loaders and IoT sensor node configuration storage.
For engineers reviewing the SST25VF020B-80-4I-QAE datasheet, SST25VF020B-80-4I-QAE pinout, SST25VF020B-80-4I-QAE application, or SST25VF020B-80-4I-QAE equivalent, key selection criteria include industrial temperature support (−40°C to +85°C), 80 MHz read performance with dummy-cycle protocol, sector/block erase flexibility, AAI programming efficiency, and hardware/software write protection granularity.
Technical Context
The SST25VF020B-80-4I-QAE implements a four-wire SPI interface compliant with Mode 0 and Mode 3 timing, using CE#, SCK, SI, and SO signals with dedicated HOLD# and WP# control pins. Its SuperFlash® split-gate CMOS technology enables fast erase (18 ms sector, 35 ms chip) and low-power operation (10 mA active read, 5 µA standby).
Memory organization comprises uniform 4-Kbyte sectors, 32-Kbyte overlay blocks, and 64-Kbyte overlay blocks - all software-protected via BP0/BP1 bits and TSP/BSP flags in dual STATUS registers. End-of-write detection is supported via BUSY-bit polling or hardware RY/BY# status on SO during AAI programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 Kbytes), sufficient for bootloader + firmware image in compact MCU designs |
| Read Speed | Up to 80 MHz with High-Speed Read (0BH) instruction and 1-dummy-byte protocol |
| Erase Performance | Sector Erase: 18 ms typical; Chip Erase: 35 ms typical - enabling rapid field updates |
| Endurance & Retention | 100,000 program/erase cycles; >100 years data retention at 85°C - validated for long-life industrial deployment |
| Supply Voltage | 2.7V–3.6V single supply - compatible with 3.3V I/O domains without level shifting |
| Temperature Range | Industrial grade: −40°C to +85°C - qualified for factory automation and outdoor edge devices |
| Write Protection | Hardware WP# pin + software BP0/BP1/TSP/BSP bits - enabling hierarchical, field-updatable lock-down |
Pinout & Package
Package: 8-contact WSON (6 mm × 5 mm), RoHS-compliant, thermally enhanced for industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence - critical for deterministic SPI transaction timing |
| SO | Serial Data Output | Outputs data on falling SCK edge; reconfigurable as RY/BY# during AAI mode for hardware busy signaling |
| WP# | Write Protect | Enables BPL bit lock-down of STATUS register - prevents accidental firmware corruption in live systems |
| SI | Serial Data Input | Latches commands/addresses/data on rising SCK edge - supports standard SPI master interfaces |
| SCK | Serial Clock | Timing reference for both input and output; supports Mode 0 (SCK idle low) and Mode 3 (SCK idle high) |
| HOLD# | Hold Control | Suspends ongoing SPI sequence without deselecting device - preserves address pointer during interrupt servicing |
| VDD | Power Supply | 2.7V–3.6V supply input; decoupling required per Microchip layout guidelines for noise immunity |
| VSS | Ground | Reference return path; requires low-impedance connection to minimize read/write jitter |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces total programming time by eliminating repeated address transmission - essential for bulk firmware writes |
| Dual STATUS Registers | STATUS Register 0 (BP0/BP1/BPL) + STATUS Register 1 (TSP/BSP) enable independent top/bottom sector lock - supports secure dual-bank OTA updates |
| Hardware RY/BY# on SO Pin | Enables real-time busy status monitoring during AAI without CPU polling - lowers host processor overhead |
| Uniform Erase Architecture | 4-Kbyte sectors + 32/64-Kbyte overlay blocks allow precise, non-disruptive partial updates - minimizes downtime in mission-critical firmware |
| SuperFlash® Technology | Split-gate cell design achieves lower program current and faster erase vs. conventional Flash - extends system battery life and update speed |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing firmware images and calibration tables in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with fast 80 MHz read access for deterministic boot and runtime code fetch. Use Value: Industrial temperature rating (−40°C to +85°C) and 100-year data retention ensure reliable operation over 15+ year equipment lifecycles. | Use Scenario: Holding device-specific calibration parameters and regulatory-compliant configuration profiles in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure, write-protected parameter storage with hardware WP# and software BP bits preventing unauthorized modification. Use Value: Dual STATUS register support for TSP/BSP enables isolated protection of safety-critical calibration zones while allowing field updates to non-critical settings. |
| Smart Meter Bootloader Memory | Automotive Body Control Module (BCM) Log Storage |
Use Scenario: Hosting secure bootloader code that validates and loads signed application firmware in utility smart meters. IC Role / Device Role / Timing Role: Trusted boot storage with chip-level erase capability (35 ms) for rapid recovery after failed updates. Use Value: 100,000 endurance cycles support frequent firmware validation and rollback operations across multi-decade deployments. | Use Scenario: Recording fault logs and operational history in automotive BCMs where space and power are constrained. IC Role / Device Role / Timing Role: Low-power logging memory with 5 µA standby current and sector-erase granularity for selective log management. Use Value: Uniform 4-Kbyte sectors allow efficient overwrite of oldest log entries without erasing full firmware partitions - optimizing flash wear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF021A-SSH-T | 2 Mbit, 85 MHz max read, 2.7–3.6V, but uses different status register map and lacks AAI programming | No Auto Address Increment - increases host CPU load during firmware writes | Preferred when legacy Atmel-compatible register behavior is required and AAI is not needed |
| W25Q20EWUXIE | 2 Mbit, 104 MHz read, 1.65–3.6V supply, Quad SPI capable, but no HOLD# pin and different sector layout | Supports QSPI for higher throughput but requires PCB redesign due to missing HOLD# and different pinout | Selected when migrating to higher-speed interfaces and board revision is feasible |
Compared with AT25DF021A-SSH-T and W25Q20EWUXIE, the SST25VF020B-80-4I-QAE uniquely balances industrial temperature reliability, AAI-accelerated programming, and HOLD#-enabled interrupt-safe operation - making it optimal for cost-sensitive, field-upgradable embedded systems where minimal host intervention and proven longevity are mandatory.
Availability
SST25VF020B-80-4I-QAE is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and smart energy metering requiring stable component supply across extended product lifecycles.
Supply support for SST25VF020B-80-4I-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 is a U.S.-based semiconductor company specializing in microcontrollers, analog components, and memory solutions for industrial, automotive, and communications markets.
The SST25VF020B-80-4I-QAE belongs to Microchip's 25-series Serial Flash family, engineered specifically for low-pin-count, high-reliability firmware and configuration storage in space- and power-constrained embedded systems.
FAQ
What is the maximum clock frequency supported by SST25VF020B-80-4I-QAE for read operations?
The SST25VF020B-80-4I-QAE supports up to 80 MHz for High-Speed Read operations using the 0BH instruction with one dummy byte. Standard Read (03H) is rated to 33 MHz. This 80 MHz capability enables fast code execution directly from flash in XIP (execute-in-place) configurations, reducing external RAM requirements in microcontroller-based designs. The "80" in the part number explicitly denotes this 80 MHz read performance rating.
Does SST25VF020B-80-4I-QAE support both SPI Mode 0 and Mode 3?
Yes, SST25VF020B-80-4I-QAE is fully compatible with both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). The device samples SI on the rising edge and drives SO on the falling edge of SCK in both modes. This dual-mode support ensures interoperability with a wide range of microcontroller SPI peripherals without requiring hardware modifications or clock polarity inversion logic.
How does the HOLD# pin function in SST25VF020B-80-4I-QAE, and what is its practical use case?
The HOLD# pin in SST25VF020B-80-4I-QAE suspends an ongoing SPI transaction without deselecting the device or resetting internal address pointers. When asserted low during active communication (with CE# low), it places SO in high-impedance state while preserving command context. This is critical in real-time systems - for example, allowing a microcontroller to service a high-priority interrupt mid-read without losing flash position, then resuming seamlessly upon return.
What write protection mechanisms are implemented in SST25VF020B-80-4I-QAE?
SST25VF020B-80-4I-QAE provides three-tiered write protection: (1) Hardware WP# pin enabling BPL lock-down of STATUS bits; (2) Software Block Protection (BP0/BP1) controlling 1/4, 1/2, or full array protection; and (3) Top/Bottom Sector Protection (TSP/BSP) in STATUS Register 1 for independent sector-level lock. These layers allow granular, field-updatable security - e.g., locking bootloader sectors while permitting application parameter updates - all verified in the official DS20005054D datasheet.
Is SST25VF020B-80-4I-QAE compatible with the same PCB footprint as other 8-pin WSON Flash devices?
SST25VF020B-80-4I-QAE uses an 8-contact WSON package measuring 6 mm × 5 mm, matching common industry-standard footprints for similar-density SPI Flash. However, pin assignments (e.g., CE# on pin 1, SO on pin 2) differ from some competitors like Winbond or Macronix. Direct PCB substitution requires verification of pin mapping, voltage compatibility, and command-set alignment - SST25VF020B-80-4I-QAE is not a drop-in replacement without layout review.
SST25VF020B-80-4I-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:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON
SST25VF020B-80-4I-QAE FAQ
1.How can I place an order for SST25VF020B-80-4I-QAE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF020B-80-4I-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 SST25VF020B-80-4I-QAE reliable?
The price and inventory of SST25VF020B-80-4I-QAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF020B-80-4I-QAE is usually 5 days.
3.What payment methods are accepted for SST25VF020B-80-4I-QAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF020B-80-4I-QAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF020B-80-4I-QAE?
SST25VF020B-80-4I-QAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF020B-80-4I-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 SST25VF020B-80-4I-QAE?
For technical support, including SST25VF020B-80-4I-QAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF020B-80-4I-QAE requirements.
6.How does Aetrix verify that SST25VF020B-80-4I-QAE is sourced from the original manufacturer or authorized distributors?
All SST25VF020B-80-4I-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 SST25VF020B-80-4I-QAE meets industry standards.
7.What is the process for return or replacement of SST25VF020B-80-4I-QAE?
All SST25VF020B-80-4I-QAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF020B-80-4I-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 SST25VF020B-80-4I-QAE part is unused and in its original packaging.
Return procedure for SST25VF020B-80-4I-QAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST25VF020B-80-4I-QAE Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
