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Microchip Technology SST25WF080BT-40I/CS
- Part No.:
- SST25WF080BT-40I/CS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFBGA, CSPBGA
- Datasheet:
-
SST25WF080BT-40I/CS.pdf
- Description:
- IC FLASH 8MBIT SPI 40MHZ 8CSP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SST25WF080BT-40I/CS from Microchip Technology is an 8 Mbit (1 MByte) 1.8V SPI serial flash memory IC used for firmware storage, boot code retention, and configuration data in space-constrained embedded systems. It operates from 1.65–1.95 V, supports 40 MHz high-speed read via Fast-Read Dual I/O (BBH), delivers 256-byte page programming, and features 100,000 program/erase cycles with >20-year data retention.
For engineers reviewing the SST25WF080BT-40I/CS datasheet, SST25WF080BT-40I/CS pinout, SST25WF080BT-40I/CS application, or SST25WF080BT-40I/CS equivalent, key selection criteria include industrial temperature support (−40°C to +85°C), dual-I/O interface timing compliance, sector/block erase granularity (4 KB/64 KB), write-protection flexibility via WP# and status register bits, and RoHS-compliant 8-lead SOIC packaging.
Technical Context
This device implements a four-wire SPI-compatible interface supporting Mode 0 and Mode 3 clock polarity/phasing, with dedicated SI/SO pins and dual-function SIO0/SIO1 for high-throughput dual-output and dual-I/O operations. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling to achieve lower program current and faster erase times than conventional NOR flash.
The internal architecture includes address latches, X/Y decoders, I/O buffers, and control logic managing BUSY/WEL status bits, block protection (BP0–BP2, TB, BPL), and hold functionality via HOLD# pin. Erase and program operations are self-timed and confirmed via polling the BUSY bit in the software status register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 bytes), organized as 256 × 4 KB sectors and 16 × 64 KB overlay blocks |
| Supply Voltage | 1.65–1.95 V - enables direct integration with 1.8 V logic domains without level shifting |
| Max Clock Frequency | 40 MHz - supports high-speed instruction execution including Fast-Read Dual I/O (BBH) |
| Page Size | 256 bytes - defines minimum programmable unit; partial-page writes are ignored |
| Erase Endurance | 100,000 cycles - guarantees reliable field updates for firmware patching and logging |
| Data Retention | >20 years at +85°C - ensures long-term integrity of stored boot images and calibration data |
| Operating Temp | −40°C to +85°C (Industrial grade) - qualified for automotive body electronics and industrial controllers |
| Power Consumption | 4 mA active read (typ), 7 µA standby (typ), 2 µA deep power-down (typ) - reduces system-level quiescent current |
Pinout & Package
Package: 8-lead SOIC (150 mil), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low throughout command sequence; drives device into standby when high |
| SO / SIO1 | Serial Data Output / Dual-I/O Pin 1 | Outputs data during standard read; functions as bidirectional I/O in Dual I/O mode (BBH); outputs odd data bits (D7,D5,D3,D1) |
| WP# | Write Protect | Enables/disables lock-down of Block-Protection-Lock (BPL) bit; controls software write protection activation |
| VSS | Ground | Reference return path for all digital and analog circuitry; requires low-impedance PCB connection |
| VDD | Power Supply | 1.65–1.95 V supply input; bypass capacitor (0.1 µF) required near pin for noise suppression |
| HOLD# | Hold Control | Pauses ongoing SPI transaction without deselecting device; requires synchronization with SCK low state |
| SCK | Serial Clock | Provides timing reference; samples SI/SIO0 on rising edge, shifts out SO/SIO1 on falling edge |
| SI / SIO0 | Serial Data Input / Dual-I/O Pin 0 | Accepts commands, addresses, and data; functions as bidirectional I/O in Dual I/O mode (BBH); outputs even data bits (D6,D4,D2,D0) |
Key Features
| Feature | Design Value |
|---|---|
| Dual I/O Interface Support | Enables BBH instruction for simultaneous 2-bit address input and 2-bit data output per clock cycle - cuts address transfer time by 50% vs standard SPI |
| Flexible Block Protection | Configurable top/bottom memory locking via BP0–BP2 and TB bits - allows selective firmware partitioning (e.g., bootloader vs application) |
| Hardware Hold Function | HOLD# pin suspends SPI communication mid-sequence without resetting internal state - preserves address pointer and avoids reinitialization overhead |
| Deep Power-Down Mode | 2 µA typical current draw - extends battery life in always-on IoT nodes while retaining memory contents |
| SuperFlash Technology | Split-gate cell design reduces program current and shortens erase time - lowers total energy per operation vs legacy NOR flash |
| AEC-Q100 Qualified | Validated for automotive applications per stress test requirements - suitable for infotainment and ADAS subsystems |
Applications
| Automotive Infotainment Boot Storage | Industrial PLC Firmware Repository |
|---|---|
Use Scenario: Stores boot loader and OS kernel image for head unit MCU, accessed during cold start and OTA update verification. IC Role / Device Role / Timing Role: Primary non-volatile boot memory providing deterministic 40 MHz read access via Fast-Read Dual I/O to meet <500 ms boot time requirement. Use Value: AEC-Q100 qualification and −40°C to +85°C operation ensure reliability across vehicle cabin temperature extremes; 100K endurance supports frequent firmware validation cycles. |
Use Scenario: Holds ladder logic programs, configuration parameters, and calibration tables for programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Configuration and firmware storage IC interfaced to ARM Cortex-M7 host via quad-SPI peripheral; leverages 64 KB block erase for rapid program reload. Use Value: Hardware WP# and software block protection prevent accidental overwrites during field maintenance; deep power-down mode minimizes standby power in unpowered racks. |
| Medical Device Calibration Data Archive | Smart Meter Secure Parameter Storage |
Use Scenario: Retains sensor calibration coefficients, usage logs, and regulatory audit trails in portable diagnostic equipment requiring long-term data integrity. IC Role / Device Role / Timing Role: Non-volatile parameter archive with >20-year data retention; accessed intermittently via SPI during startup and diagnostics. Use Value: 100,000-cycle endurance accommodates lifetime recalibration events; sector-erase granularity enables selective log rotation without disturbing calibration constants. |
Use Scenario: Stores encryption keys, tariff schedules, and firmware signature certificates in ANSI C12.22-compliant utility meters operating in outdoor enclosures. IC Role / Device Role / Timing Role: Secure configuration memory with hardware write protection (WP#) and status-register lockdown (BPL) to prevent tampering. Use Value: Industrial temperature range and RoHS compliance meet utility-grade environmental and regulatory mandates; 4 KB sector erase enables efficient key rotation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q80DVSSIG | 8 Mbit, 1.65–1.95 V, 104 MHz max clock (quad SPI), 100K endurance, same SOIC-8 package | Supports Quad SPI (QPI) and higher clock rates but lacks AEC-Q100 qualification | Select for higher bandwidth needs where automotive qualification is not required |
| Cypress S25FL008K0XMFI011 | 8 Mbit, 2.7–3.6 V supply, 104 MHz max clock, 100K endurance, SOIC-8 | Requires 3.3 V supply; incompatible with 1.8 V systems without level translation | Choose only if existing 3.3 V rail is available and voltage compatibility is verified |
Compared with Winbond W25Q80DVSSIG and Cypress S25FL008K0XMFI011, the SST25WF080BT-40I/CS uniquely combines 1.8 V operation, AEC-Q100 qualification, and industrial temperature range in a pin-compatible SOIC-8 footprint - making it optimal for automotive and harsh-environment embedded designs where supply voltage and reliability constraints dominate.
Availability
SST25WF080BT-40I/CS is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC firmware, and medical device calibration data storage requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for SST25WF080BT-40I/CS 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 semiconductor company specializing in microcontrollers, analog devices, and memory solutions for embedded control applications.
The SST25WF080BT-40I/CS belongs to Microchip's Serial Flash 25 Series, designed specifically for low-voltage, high-reliability firmware and configuration storage in automotive, industrial, and medical systems demanding AEC-Q100 compliance and extended temperature operation.
FAQ
What is the maximum clock frequency supported by SST25WF080BT-40I/CS for standard SPI read operations?
The SST25WF080BT-40I/CS supports up to 40 MHz for High-Speed Read (0BH), Fast-Read Dual-Output (3BH), and Fast-Read Dual I/O (BBH) instructions. Standard Read (03H) is rated for 30 MHz. All modes operate within the 1.65–1.95 V supply range and require proper setup/hold timing relative to SCK edges as defined in DS20005164E.
Does SST25WF080BT-40I/CS support both SPI Mode 0 and Mode 3, and how is mode selection handled?
Yes, SST25WF080BT-40I/CS natively supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). No configuration is required - the device automatically adapts to the master's clock polarity and phase. Data is sampled on the rising edge of SCK and shifted out on the falling edge in both modes.
How does the HOLD# pin function during an active SPI transaction in SST25WF080BT-40I/CS?
In SST25WF080BT-40I/CS, the HOLD# pin suspends serial communication while maintaining CE# active low and preserving internal state (e.g., address pointer). Hold begins on the falling edge of HOLD# synchronized with SCK low; resumption occurs on the rising edge of HOLD# also aligned with SCK low. SO enters high-impedance during hold.
What write protection mechanisms are implemented in SST25WF080BT-40I/CS?
SST25WF080BT-40I/CS provides three-tiered write protection: (1) hardware WP# pin enabling BPL bit lock-down, (2) software-configurable block protection (BP0–BP2, TB) via Status Register, and (3) Write-Enable-Latch (WEL) bit requiring WREN instruction before any write. Protection granularity spans 4 KB sectors and 64 KB blocks.
Is SST25WF080BT-40I/CS compatible with 3.3 V SPI masters, and what interface considerations apply?
No - SST25WF080BT-40I/CS is strictly a 1.65–1.95 V core device. Direct connection to 3.3 V masters risks overvoltage damage to SI/SO/SIO0/SIO1/HOLD#/WP# pins. Level-shifting circuitry (e.g., TXS0108E) is mandatory for interoperability with 3.3 V systems, and VDD must remain within specified range.
SST25WF080BT-40I/CS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-UFBGA, CSPBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 40 MHz
- Write Cycle Time - Word, Page:
- 1ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-CSP
SST25WF080BT-40I/CS FAQ
1.How can I place an order for SST25WF080BT-40I/CS through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF080BT-40I/CS 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 SST25WF080BT-40I/CS reliable?
The price and inventory of SST25WF080BT-40I/CS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25WF080BT-40I/CS is usually 5 days.
3.What payment methods are accepted for SST25WF080BT-40I/CS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF080BT-40I/CS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF080BT-40I/CS?
SST25WF080BT-40I/CS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF080BT-40I/CS 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 SST25WF080BT-40I/CS?
For technical support, including SST25WF080BT-40I/CS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25WF080BT-40I/CS requirements.
6.How does Aetrix verify that SST25WF080BT-40I/CS is sourced from the original manufacturer or authorized distributors?
All SST25WF080BT-40I/CS 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 SST25WF080BT-40I/CS meets industry standards.
7.What is the process for return or replacement of SST25WF080BT-40I/CS?
All SST25WF080BT-40I/CS units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF080BT-40I/CS, 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 SST25WF080BT-40I/CS part is unused and in its original packaging.
Return procedure for SST25WF080BT-40I/CS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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