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

Microchip Technology SST25VF010A-33-4I-SAE

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

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

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

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

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

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Product details

Overview

SST25VF010A-33-4I-SAE from Microchip Technology is a 1 Mbit SPI serial flash memory IC with SuperFlash® technology, supporting 33 MHz high-speed read, 4 KByte uniform sectors and 32 KByte overlay blocks, operating from a single 2.7–3.6 V supply, and rated for industrial temperature (−40°C to +85°C) in an 8-lead SOIC package. It serves as nonvolatile program/data storage in microcontroller boot loaders, firmware update buffers, and configuration memory.

For engineers reviewing the SST25VF010A-33-4I-SAE datasheet, SST25VF010A-33-4I-SAE pinout, SST25VF010A-33-4I-SAE application, or SST25VF010A-33-4I-SAE equivalent, key selection considerations include SPI Mode 0/3 compatibility, hardware HOLD#/WP# control, Auto Address Increment (AAI) programming efficiency, and industrial-grade reliability with 100,000 write cycles and >100-year data retention.

Technical Context

The SST25VF010A-33-4I-SAE implements a four-wire SPI interface (SCK, SI, SO, CE#) with dual-mode clock polarity support (Mode 0 and Mode 3), enabling interoperability with diverse host controllers. Its split-gate SuperFlash cell architecture delivers faster erase/program times and lower total energy per operation versus conventional flash.

Internal logic includes a software status register with BUSY, WEL, BP0/BP1, AAI, and BPL bits, plus dedicated HOLD# and WP# pins for real-time serial transaction suspension and hardware-assisted block protection. Erase granularity is configurable at sector (4 KByte), block (32 KByte), or chip level, with chip-erase time of 70 ms typical.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	1 Mbit (131,072 bytes), organized as 32 × 4 KByte sectors or 4 × 32 KByte overlay blocks - enables fine-grained firmware partitioning and over-the-air update staging.
Max Clock Frequency	33 MHz for High-Speed Read - supports 4.125 MB/s sustained read throughput, critical for fast boot and code shadowing.
Write Endurance	100,000 program/erase cycles (typical) - ensures robust field lifetime for frequently updated configuration or logging data.
Data Retention	Greater than 100 years - guarantees long-term integrity of calibration constants, security keys, or device identity stored in production.
Supply Voltage	2.7–3.6 V single supply - compatible with 3.3 V system rails without level-shifting, simplifying power domain design.
Operating Temperature	−40°C to +85°C (Industrial grade) - validated for deployment in automotive ECUs, industrial HMIs, and outdoor IoT gateways.
Active Read Current	7 mA (typical) - enables low-power operation during frequent status polling or small-data reads in battery-backed systems.
Standby Current	8 µA (typical) - minimizes quiescent draw when idle, extending runtime in always-on edge sensors.

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 sequences to maintain SPI session continuity.
SO	Serial Data Output	Tri-state output; drives data on falling SCK edge (SPI Mode 0/3), enters high-impedance during HOLD# assertion.
WP#	Write Protect	Hardware lock-down control for status register BPL bit; when low, prevents modification of BP0/BP1 unless BPL=0.
VSS	Ground	Reference return path for all digital and analog circuitry; requires low-impedance PCB connection to minimize noise coupling.
VDD	Power Supply	2.7–3.6 V input; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin for stable high-speed operation.
HOLD#	Hold	Pauses ongoing SPI transfer without deselecting device; allows host to service higher-priority interrupts while preserving address pointer state.
SCK	Serial Clock	Master-generated timing signal; rising edge latches SI, falling edge clocks SO - supports both Mode 0 (idle low) and Mode 3 (idle high).
SI	Serial Data Input	Command/address/data input; sampled on rising SCK edge; remains valid during HOLD# active if CE# stays low.

Key Features

Feature	Design Value
SuperFlash® Technology	Split-gate cell with thick-oxide tunneling injector enables 70 ms chip-erase (vs. >1 s in standard NOR flash), reducing firmware update latency.
Auto Address Increment (AAI)	Eliminates repeated address retransmission during multi-byte programming - cuts total write time by ~40% vs. Byte-Program mode.
Flexible Block Protection	BP0/BP1 bits configure 0%, 25%, 50%, or 100% array protection; BPL bit locks settings permanently when WP# is asserted.
HOLD# Functionality	Suspends SPI communication mid-transfer without resetting internal address counter - preserves context across interrupt-driven host scheduling.
High-Speed Read (33 MHz)	Uses dummy-cycle protocol (0BH command) to achieve 33 MHz timing margin - enables direct XIP (execute-in-place) from flash in resource-constrained MCUs.
Software Status Register	Real-time BUSY/WEL monitoring via RDSR (05H); eliminates need for fixed delay timers and improves system responsiveness.

Applications

Industrial PLC Firmware Storage	Automotive Body Control Module (BCM) Configuration
Use Scenario: Storing bootloader, application firmware, and calibration tables in programmable logic controllers subject to thermal cycling and EMI. IC Role / Device Role / Timing Role: Nonvolatile storage element interfaced via SPI to ARM Cortex-M7 host MCU; provides deterministic 33 MHz read access for fast startup and field updates. Use Value: 100,000-cycle endurance and −40°C to +85°C rating ensure reliable operation over 15+ years in factory-floor environments with minimal maintenance.	Use Scenario: Holding vehicle-specific configuration (e.g., door lock logic, lighting profiles) and diagnostic event logs in BCMs. IC Role / Device Role / Timing Role: SPI-connected configuration memory with hardware WP# and HOLD# pins enabling safe concurrent access during CAN bus interrupt handling. Use Value: Sector-level erase (18 ms typical) allows selective reprogramming of user settings without disrupting safety-critical firmware partitions.
Medical Infusion Pump Parameter Memory	Smart Energy Meter Firmware Update Buffer
Use Scenario: Retaining drug delivery parameters, usage history, and regulatory audit logs in Class II medical devices requiring traceability. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with software write protection (BP0/BP1/BPL) and >100-year data retention for compliance with IEC 62304. Use Value: Block-protection lock-down prevents accidental overwrite of FDA-mandated calibration data during routine software updates.	Use Scenario: Acting as dual-bank firmware staging area in utility meters receiving remote OTA updates over narrowband PLC or RF links. IC Role / Device Role / Timing Role: High-reliability SPI flash with AAI programming used to rapidly write incoming firmware images before atomic bank swap. Use Value: 14 µs byte-program time and AAI reduce full-image write duration by >3× versus standard SPI flash, minimizing outage windows.

Industrial PLC Firmware Storage

Automotive Body Control Module (BCM) Configuration

Use Scenario: Storing bootloader, application firmware, and calibration tables in programmable logic controllers subject to thermal cycling and EMI.

IC Role / Device Role / Timing Role: Nonvolatile storage element interfaced via SPI to ARM Cortex-M7 host MCU; provides deterministic 33 MHz read access for fast startup and field updates.

Use Value: 100,000-cycle endurance and −40°C to +85°C rating ensure reliable operation over 15+ years in factory-floor environments with minimal maintenance.

Use Scenario: Holding vehicle-specific configuration (e.g., door lock logic, lighting profiles) and diagnostic event logs in BCMs.

IC Role / Device Role / Timing Role: SPI-connected configuration memory with hardware WP# and HOLD# pins enabling safe concurrent access during CAN bus interrupt handling.

Use Value: Sector-level erase (18 ms typical) allows selective reprogramming of user settings without disrupting safety-critical firmware partitions.

Medical Infusion Pump Parameter Memory

Smart Energy Meter Firmware Update Buffer

Use Scenario: Retaining drug delivery parameters, usage history, and regulatory audit logs in Class II medical devices requiring traceability.

IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with software write protection (BP0/BP1/BPL) and >100-year data retention for compliance with IEC 62304.

Use Value: Block-protection lock-down prevents accidental overwrite of FDA-mandated calibration data during routine software updates.

Use Scenario: Acting as dual-bank firmware staging area in utility meters receiving remote OTA updates over narrowband PLC or RF links.

IC Role / Device Role / Timing Role: High-reliability SPI flash with AAI programming used to rapidly write incoming firmware images before atomic bank swap.

Use Value: 14 µs byte-program time and AAI reduce full-image write duration by >3× versus standard SPI flash, minimizing outage windows.

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 W25Q80DVSSIG	8 Mbit density, 104 MHz Dual/Quad SPI, no HOLD# pin, different status register layout and protection scheme.	Higher bandwidth and capacity for complex GUI firmware; lacks hardware HOLD# for deterministic interrupt handling.	Select only if migrating to larger memory footprint and dual/quad SPI interface; requires PCB and driver changes.
Macronix MX25L1006EM1I-12G	1 Mbit, 80 MHz max clock, same SOIC-8 package, but uses standard NOR architecture (no AAI), longer 50 ms typical sector-erase time.	Lower cost for basic storage where AAI and sub-20 ms erase are not required; less optimized for frequent field updates.	Prefer when cost sensitivity outweighs performance needs; verify timing margins for 33 MHz read compatibility.

Compared with SST25VF010A-33-4I-SAE, W25Q80DVSSIG offers greater density and speed but sacrifices HOLD# and industrial temp support, while MX25L1006EM1I-12G matches density and package but lacks AAI acceleration and has slower erase - making SST25VF010A-33-4I-SAE optimal for deterministic, update-intensive industrial firmware storage.

Availability

SST25VF010A-33-4I-SAE is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, medical infusion pumps, smart energy meters, and embedded gateway firmware storage requiring stable component supply across extended product lifecycles.

Supply support for SST25VF010A-33-4I-SAE 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 microcontrollers, analog components, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its serial flash portfolio.

The SST25VF010A-33-4I-SAE belongs to Microchip's legacy SST SuperFlash® serial flash product line, designed specifically for cost-sensitive, reliability-critical embedded systems requiring fast, low-power, and long-life nonvolatile storage in compact SOIC packages.

FAQ

What is the maximum SPI clock frequency supported by the SST25VF010A-33-4I-SAE?

The SST25VF010A-33-4I-SAE supports up to 33 MHz for High-Speed Read operations using the 0BH command with dummy cycle. Standard Read (03H) is rated at 20 MHz. This 33 MHz capability enables faster boot sequences and reduces firmware load time in resource-constrained microcontrollers. The device maintains timing compliance across its full industrial temperature range (−40°C to +85°C).

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

Yes, the SST25VF010A-33-4I-SAE explicitly supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as confirmed in the official datasheet. This dual-mode compatibility allows seamless integration with a wide range of host processors-including older ARM7/9 derivatives and modern Cortex-M series-without requiring external level shifters or protocol translation.

How does the HOLD# pin function during active SPI communication in the SST25VF010A-33-4I-SAE?

The HOLD# pin in the SST25VF010A-33-4I-SAE suspends an ongoing SPI sequence without deselecting the device or resetting the internal address pointer. When asserted low (with CE# held active), SO enters high-impedance while SI and SCK remain functional. Communication resumes upon deasserting HOLD#, preserving transaction state - a critical feature for interrupt-driven hosts needing deterministic latency control during firmware updates or diagnostics.

What is the purpose of the Auto Address Increment (AAI) programming mode in the SST25VF010A-33-4I-SAE?

The Auto Address Increment (AAI) mode in the SST25VF010A-33-4I-SAE allows sequential byte programming without retransmitting the address for each byte. After issuing the AFH command and first address/data, subsequent bytes use AFH + data only - reducing instruction overhead and cutting total programming time by ~40% compared to standard Byte-Program mode. This accelerates firmware image writes in production and field updates.

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

The SST25VF010A-33-4I-SAE is qualified for Industrial temperature (−40°C to +85°C) and meets AEC-Q100 stress test requirements per its original SST qualification. While not officially AEC-Q100 certified as a standalone part, it has been widely deployed in automotive body control modules, infotainment subsystems, and telematics units where ambient conditions fall within its rated range. For safety-critical powertrain applications, consult Microchip's current automotive-qualified alternatives.

SST25VF010A-33-4I-SAE Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: SST25

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Programmable:: 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-SOIC

SST25VF010A-33-4I-SAE FAQ

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

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

The price and inventory of SST25VF010A-33-4I-SAE 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-SAE is usually 5 days.

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

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

Note: Certain payment methods may incur a processing fee.

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

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

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

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

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

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

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

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

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

1.Submit a request within 90 days.

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

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