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

Microchip Technology SST25VF010A-33-4I-QAE

Name: SST25VF010A-33-4I-QAE
Brand: Microchip Technology
SKU: SST25VF010A-33-4I-QAE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SST25VF010A-33-4I-QAE

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-WDFN Exposed Pad

Datasheet:: SST25VF010A-33-4I-QAE.pdf

Description:: IC FLASH 1MBIT SPI 33MHZ 8WSON

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Product details

Overview

SST25VF010A-33-4I-QAE from Microchip Technology is a 1 Mbit (128 KByte) SPI serial flash memory IC designed for embedded firmware storage, boot code retention, and configuration data logging in space-constrained systems. It operates from a single 2.7–3.6 V supply, supports up to 33 MHz clock frequency, delivers 100,000 program/erase cycles, and guarantees >100 years data retention - deployed in industrial controllers, IoT edge nodes, and medical diagnostics devices.

For engineers reviewing the SST25VF010A-33-4I-QAE datasheet, SST25VF010A-33-4I-QAE pinout, SST25VF010A-33-4I-QAE application, or SST25VF010A-33-4I-QAE equivalent, key selection criteria include SPI Mode 0/3 compatibility, industrial temperature range (−40°C to +85°C), 4 KByte sector/32 KByte block erase granularity, Auto Address Increment (AAI) programming efficiency, and hardware write protection via WP# and HOLD# pins.

Technical Context

The SST25VF010A-33-4I-QAE implements a four-wire SPI interface (SCK, SI, SO, CE#) with dual-mode timing support (Mode 0 and Mode 3), enabling seamless integration with ARM Cortex-M, PIC, and RISC-V microcontrollers. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling injectors to achieve faster erase times (18 ms sector-erase) and lower active current (7 mA typical) versus conventional NOR flash.

Internal architecture includes a software status register with BUSY/WEL/BP0/BP1/BPL/AAI bits, enabling real-time operation monitoring and flexible block-level write protection. The HOLD# pin suspends ongoing SPI transactions without resetting internal state, while WP# controls lock-down of protection bits - both critical for robust field firmware updates and secure configuration storage.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	1 Mbit (128 KByte), organized as 32 uniform 4 KByte sectors or 4 uniform 32 KByte overlay blocks - enables fine-grained firmware partitioning and OTA update staging.
Max Clock Frequency	33 MHz (High-Speed Read), supporting 4.125 MB/s sequential read throughput - sufficient for fast boot code loading and real-time parameter streaming.
Supply Voltage	2.7–3.6 V single supply - compatible with 3.3 V logic domains and eliminates need for level shifters in most MCU interfaces.
Endurance & Retention	100,000 program/erase cycles typical; >100 years data retention at 25°C - validated for long-life industrial deployments with infrequent but critical firmware revisions.
Erase/Program Speed	Sector-erase: 18 ms typical; Byte-program: 14 µs typical; Chip-erase: 70 ms typical - reduces firmware update latency and improves system responsiveness during field upgrades.
Operating Temperature	−40°C to +85°C (Industrial grade) - qualified for use in factory automation, outdoor gateways, and automotive body control modules.
Power Consumption	Active read current: 7 mA typical; Standby current: 8 µA typical - extends battery life in always-on sensor nodes and portable diagnostic tools.

Pinout & Package

Package: 8-lead SOIC (150 mil body width), RoHS-compliant, lead-free.

Pin/Terminal	Circuit Role	Design Meaning
CE#	Chip Enable	Active-low device select; must remain low throughout command sequence - enables multi-device SPI bus sharing with daisy-chained or decoded addressing.
SO	Serial Data Output	Tri-state output driven on SCK falling edge - supports half-duplex SPI reads without external buffering or direction control.
WP#	Write Protect	Hardware-enables lock-down of status register BP0/BP1/BPL bits - prevents accidental firmware corruption during power transients or ESD events.
VSS	Ground	Reference return path for all I/O and core logic - requires low-impedance connection to PCB ground plane to maintain signal integrity at 33 MHz.
VDD	Power Supply	2.7–3.6 V input; decoupling capacitor (0.1 µF ceramic) required within 5 mm - ensures stable internal voltage regulator operation during high-speed read bursts.
HOLD#	Hold	Pauses ongoing SPI transaction without resetting address pointer - allows host MCU to service interrupts or manage DMA buffers mid-read without losing context.
SCK	Serial Clock	Master-generated timing reference; sampled on rising edge for inputs, drives outputs on falling edge - defines maximum interface speed and jitter tolerance.
SI	Serial Data Input	Command/address/data input latched on SCK rising edge - supports standard SPI opcodes (03H Read, 0BH High-Speed Read, 02H Byte-Program, AFH AAI).

Key Features

Feature	Design Value
Auto Address Increment (AAI) Programming	Reduces total programming time by eliminating repeated address transmission - ideal for sequential firmware image writes without CPU overhead.
Flexible Block Protection	BP0/BP1 bits configure write protection across 0%, 25%, 50%, or 100% of memory array - enables secure bootloader partitioning and runtime parameter locking.
Hold Functionality	Suspends SPI communication while preserving internal state and address pointer - eliminates need for re-initialization after interrupt servicing or bus arbitration delays.
SuperFlash Technology	Split-gate cell architecture with thick-oxide tunneling injector - achieves lower program current and shorter erase time than standard NOR flash, reducing total energy per operation.
Software Status Register	Real-time BUSY/WEL/AAI/BPL visibility via RDSR (05H) instruction - enables deterministic polling-based firmware update flow without timer dependencies.

Applications

Firmware Boot Storage	Configuration Data Logging
Use Scenario: Storing boot loader and initial application firmware for microcontrollers in industrial PLCs requiring cold-start reliability. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped via SPI; accessed during power-up reset sequence before main application execution. Use Value: 100-year data retention and 100K-cycle endurance ensure firmware integrity over 15+ year product lifecycles without refresh.	Use Scenario: Recording calibration coefficients, sensor offsets, and user preferences in portable medical devices with limited battery capacity. IC Role / Device Role / Timing Role: Low-power configuration store updated infrequently but read at every power-on; leverages 8 µA standby current. Use Value: Sector-erase granularity (4 KByte) allows selective overwrite of parameter blocks without disturbing adjacent firmware sections.
Secure OTA Update Buffer	Real-Time Parameter Streaming
Use Scenario: Holding verified firmware patches in automotive telematics units prior to atomic swap into active memory region. IC Role / Device Role / Timing Role: Dual-bank staging area using block-protection bits (BP0/BP1) to isolate pending update from running code. Use Value: Hardware WP# and BPL bit lock-down prevent malicious or erroneous writes during network transfer or power interruption.	Use Scenario: Streaming real-time sensor metadata (timestamps, gain settings, fault flags) in test equipment with continuous acquisition mode. IC Role / Device Role / Timing Role: Circular buffer implemented via AAI programming and wrap-around address pointer during High-Speed Read (0BH). Use Value: 33 MHz clock support enables sustained 4.125 MB/s read throughput - sufficient for 16-bit ADC data at 250 kSPS with metadata overhead.

Firmware Boot Storage

Configuration Data Logging

Use Scenario: Storing boot loader and initial application firmware for microcontrollers in industrial PLCs requiring cold-start reliability.

IC Role / Device Role / Timing Role: Non-volatile boot memory mapped via SPI; accessed during power-up reset sequence before main application execution.

Use Value: 100-year data retention and 100K-cycle endurance ensure firmware integrity over 15+ year product lifecycles without refresh.

Use Scenario: Recording calibration coefficients, sensor offsets, and user preferences in portable medical devices with limited battery capacity.

IC Role / Device Role / Timing Role: Low-power configuration store updated infrequently but read at every power-on; leverages 8 µA standby current.

Use Value: Sector-erase granularity (4 KByte) allows selective overwrite of parameter blocks without disturbing adjacent firmware sections.

Secure OTA Update Buffer

Real-Time Parameter Streaming

Use Scenario: Holding verified firmware patches in automotive telematics units prior to atomic swap into active memory region.

IC Role / Device Role / Timing Role: Dual-bank staging area using block-protection bits (BP0/BP1) to isolate pending update from running code.

Use Value: Hardware WP# and BPL bit lock-down prevent malicious or erroneous writes during network transfer or power interruption.

Use Scenario: Streaming real-time sensor metadata (timestamps, gain settings, fault flags) in test equipment with continuous acquisition mode.

IC Role / Device Role / Timing Role: Circular buffer implemented via AAI programming and wrap-around address pointer during High-Speed Read (0BH).

Use Value: 33 MHz clock support enables sustained 4.125 MB/s read throughput - sufficient for 16-bit ADC data at 250 kSPS with metadata overhead.

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 W25Q80DVSSIG	8 Mbit density, 104 MHz Dual/Quad SPI, 3.3 V only, no HOLD# pin	Higher bandwidth for graphics or audio buffering; lacks hardware hold for interrupt-safe reads	Select when higher capacity and faster Quad SPI are needed; avoid if HOLD# is required for deterministic interrupt handling.
Macronix MX25L1006EM1I-12G	1 Mbit, 80 MHz max clock, 2.7–3.6 V, includes Quad SPI mode and SFDP support	Broad MCU compatibility via SFDP; slightly faster erase but no AAI programming	Prefer for future-proof designs needing standardized configuration discovery; choose SST25VF010A-33-4I-QAE when AAI and HOLD# are critical for legacy or resource-constrained hosts.

Compared with W25Q80DVSSIG and MX25L1006EM1I-12G, the SST25VF010A-33-4I-QAE uniquely balances industrial temperature operation, hardware HOLD#/WP# pins, and AAI programming - making it optimal for deterministic, low-overhead firmware storage where MCU resources and power budget are constrained.

Availability

SST25VF010A-33-4I-QAE is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and automotive body electronics requiring stable component supply across extended product lifecycles.

Supply support for SST25VF010A-33-4I-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 global provider of microcontroller, analog, FPGA, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its serial flash portfolio.

The SST25VF010A-33-4I-QAE belongs to Microchip's legacy SST SuperFlash serial flash family, engineered specifically for cost-sensitive, space-constrained embedded applications demanding high reliability, low power, and simple SPI integration - not general-purpose computing or high-bandwidth multimedia.

FAQ

What is the maximum operating clock frequency supported by the SST25VF010A-33-4I-QAE?

The SST25VF010A-33-4I-QAE supports a maximum clock frequency of 33 MHz for High-Speed Read operations (command 0BH), enabling up to 4.125 MB/s sequential read throughput. Standard Read (03H) is rated at 20 MHz. This 33 MHz capability is explicitly specified in the datasheet and validated across the full industrial temperature range (−40°C to +85°C), making SST25VF010A-33-4I-QAE suitable for time-critical boot and streaming applications.

Does the SST25VF010A-33-4I-QAE support both SPI Mode 0 and Mode 3?

Yes, the SST25VF010A-33-4I-QAE is fully compatible with both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as confirmed in the Product Description and Figure 2 of the datasheet. Input data (SI) is sampled on the rising edge of SCK in both modes, and output data (SO) is driven on the falling edge - ensuring interoperability with diverse microcontroller SPI peripherals without protocol translation.

How does the HOLD# pin function during an active SPI transaction in the SST25VF010A-33-4I-QAE?

The HOLD# pin in the SST25VF010A-33-4I-QAE suspends an ongoing SPI sequence without resetting internal state or address pointers. When HOLD# is asserted low while CE# is active, SO enters high-impedance and communication pauses until HOLD# is deasserted. This allows the host MCU to service interrupts or manage DMA buffers mid-transaction - a behavior explicitly defined in Section 6 (Hold Operation) of the datasheet and critical for deterministic real-time operation of SST25VF010A-33-4I-QAE.

What memory organization does the SST25VF010A-33-4I-QAE use, and how does it affect firmware partitioning?

The SST25VF010A-33-4I-QAE organizes its 1 Mbit array into 32 uniform 4 KByte sectors and 4 uniform 32 KByte overlay blocks, as stated in Section 5 (Product Identification). This structure enables precise firmware partitioning - for example, isolating bootloader (sector 0), application image (sectors 1–15), and configuration data (sector 31) - with independent erase control. Each sector can be erased in 18 ms, allowing targeted updates without affecting unrelated memory regions in SST25VF010A-33-4I-QAE deployments.

Can the SST25VF010A-33-4I-QAE be used in automotive applications?

The SST25VF010A-33-4I-QAE is rated for Industrial temperature (−40°C to +85°C) and meets AEC-Q100 stress testing requirements per Microchip's qualification documentation for this family. While not officially AEC-Q100 certified as a standalone part, its thermal and reliability specs align with body electronics and infotainment subsystems. For safety-critical powertrain or ADAS applications, consult Microchip's Automotive Qualified variants; SST25VF010A-33-4I-QAE remains appropriate for non-safety automotive functions where industrial-grade assurance suffices.

SST25VF010A-33-4I-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:: 1Mbit

Memory Organization:: 128K x 8

Memory Interface:: SPI

Clock Frequency:: 33 MHz

Write Cycle Time - Word, Page:: 20µs

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

SST25VF010A-33-4I-QAE FAQ

1.How can I place an order for SST25VF010A-33-4I-QAE through Aetrix?

Please submit a Request for Quotation (RFQ) for SST25VF010A-33-4I-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 SST25VF010A-33-4I-QAE reliable?

The price and inventory of SST25VF010A-33-4I-QAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF010A-33-4I-QAE is usually 5 days.

3.What payment methods are accepted for SST25VF010A-33-4I-QAE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF010A-33-4I-QAE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SST25VF010A-33-4I-QAE?

SST25VF010A-33-4I-QAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SST25VF010A-33-4I-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 SST25VF010A-33-4I-QAE?

For technical support, including SST25VF010A-33-4I-QAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF010A-33-4I-QAE requirements.

6.How does Aetrix verify that SST25VF010A-33-4I-QAE is sourced from the original manufacturer or authorized distributors?

All SST25VF010A-33-4I-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 SST25VF010A-33-4I-QAE meets industry standards.

7.What is the process for return or replacement of SST25VF010A-33-4I-QAE?

All SST25VF010A-33-4I-QAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF010A-33-4I-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 SST25VF010A-33-4I-QAE part is unused and in its original packaging.

Return procedure for SST25VF010A-33-4I-QAE:

1.Submit a request within 90 days.

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

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