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Microchip Technology SST25WF080-75-4I-ZAE
- Part No.:
- SST25WF080-75-4I-ZAE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFBGA, CSPBGA
- Datasheet:
-
SST25WF080-75-4I-ZAE.pdf
- Description:
- IC FLASH 8MBIT SPI 75MHZ 8CSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,605
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Product details
Overview
SST25WF080-75-4I-ZAE from Microchip Technology (formerly Silicon Storage Technology) is an 8 Mbit, 1.8V SPI serial flash memory IC used for non-volatile code and data storage in embedded systems. It operates at 1.65–1.95 V, supports 75 MHz high-speed read via SPI Mode 0/3, features 4 KByte uniform sectors and 32/64 KByte overlay blocks, and delivers 100,000 program/erase cycles with >100 years data retention.
For engineers reviewing the SST25WF080-75-4I-ZAE datasheet, SST25WF080-75-4I-ZAE pinout, SST25WF080-75-4I-ZAE application, or SST25WF080-75-4I-ZAE equivalent, key selection considerations include its industrial temperature range (–40°C to +85°C), SOIC-8 package, hardware reset or hold pin option, AAI programming mode, and dual-speed read capability (33 MHz standard / 75 MHz high-speed).
Technical Context
The SST25WF080-75-4I-ZAE implements a four-wire SPI interface with support for both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), enabling interoperability with diverse host controllers. Its SuperFlash technology uses a split-gate cell and thick-oxide tunneling injector to achieve superior endurance and data retention over conventional flash.
It integrates dual erase granularity-uniform 4 KByte sectors and configurable 32/64 KByte overlay blocks-and supports Auto Address Increment (AAI) word-programming to reduce total programming time. End-of-write detection is available via software polling of the BUSY bit or hardware-ready/busy status output on the SO pin during AAI mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1 MByte), organized as 2048 × 4 KByte sectors |
| Supply Voltage | 1.65–1.95 V - enables low-power operation in 1.8V system rails without level shifting |
| Max Read Speed | 75 MHz - achieved using High-Speed Read (0BH) command with dummy cycle |
| Endurance | 100,000 program/erase cycles - ensures long-term reliability in firmware update applications |
| Data Retention | >100 years - validated at 25°C, critical for unattended or sealed-system deployments |
| Erase Granularity | 4 KByte sectors, 32 KByte & 64 KByte overlay blocks - allows flexible partitioning for bootloader, config, and application code |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including motor control and networking equipment |
Pinout & Package
Package: 8-lead SOIC (150 mils), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence to prevent premature termination |
| SO | Serial Data Output / RY/BY# | Standard SPI output; configurable as hardware ready/busy indicator during AAI programming (via EBSY/DBSY) |
| WP# | Write Protect | Enables lock-down of Block-Protection bits (BP3–BP0) when pulled low; disables BPL bit write protection when high |
| VSS | Ground | Reference return path for all I/O and core logic; requires low-impedance connection to system ground plane |
| VDD | Power Supply | 1.65–1.95 V supply input; decoupling capacitor (0.1 µF) required near pin per layout guidelines |
| RST#/HOLD# | Reset or Hold Pin | Default hardware reset (RST#); programmable to suspend SPI communication without deselecting device (HOLD#) |
| SCK | Serial Clock | Timing reference for SPI transfers; sampled on rising edge for inputs (SI), drives outputs (SO) on falling edge |
| SI | Serial Data Input | Command, address, and data input path; MSB-first, synchronized to SCK rising edge |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell architecture reduces program/erase voltage stress, improving reliability and manufacturability vs. floating-gate alternatives |
| Auto Address Increment (AAI) | Reduces total programming time by eliminating repeated address transmission for sequential word writes |
| Dual-Speed Read Interface | Supports 33 MHz (03H) and 75 MHz (0BH) read modes - enables performance scaling based on host controller capability |
| Flexible Block Protection | Software-configurable BP3–BP0 bits allow selective write-protection of upper memory regions (e.g., bootloader section) |
| Hardware Reset & Hold Modes | Single pin provides either full device reset or non-disruptive SPI suspension - simplifies system-level power management and debug workflows |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing field-upgradable firmware and calibration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with fast read access for boot execution and reliable sector-erase for firmware updates. Use Value: 100,000-cycle endurance and >100-year data retention ensure multi-decade deployment without memory degradation; –40°C to +85°C rating guarantees operation across ambient extremes. | Use Scenario: Holding patient-specific configuration profiles and safety-critical device parameters in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage with software block protection to prevent accidental overwrite of calibrated settings. Use Value: WP#-enabled BPL bit lock-down prevents unauthorized modification of protection bits; industrial temp range supports battery-powered operation in clinical and home-use settings. |
| Networking Equipment Bootloader | Automotive Infotainment System Code Storage |
Use Scenario: Hosting bootloader and recovery image in Ethernet switches and wireless access points requiring rapid boot and secure firmware integrity. IC Role / Device Role / Timing Role: Primary boot memory accessed via high-speed SPI (75 MHz) to minimize boot latency and support secure hash verification. Use Value: 75 MHz High-Speed Read mode cuts boot time versus standard 33 MHz; uniform 4 KByte sectors enable atomic firmware patching without full chip erase. | Use Scenario: Storing UI assets, voice recognition models, and vehicle-specific configuration in head units with strict automotive qualification requirements. IC Role / Device Role / Timing Role: Secondary code/data storage interfaced to application processor via SPI, supporting AAI programming for efficient OTA updates. Use Value: AAI mode reduces OTA update time by up to 40% vs. byte-program; SO-as-RY/BY# hardware busy signaling simplifies host-side timing control during background writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25SF081-SSHD-B | 8 Mbit, 1.7–2.0 V supply, 104 MHz max read, Quad SPI support, no AAI mode | Lacks AAI programming; adds Quad I/O for higher bandwidth but requires different command set and layout | Select for designs needing faster random reads or future Quad SPI scalability; avoid if AAI-based firmware update efficiency is critical |
| W25Q80DVSSIG | 8 Mbit, 2.7–3.6 V supply, 104 MHz max read, standard SPI only, no HOLD#/RST# dual-function pin | Requires 3.3 V rail; lacks hardware hold functionality and 1.8 V compatibility - incompatible with low-voltage SoC interfaces | Choose only in legacy 3.3 V systems; not suitable as drop-in replacement due to voltage mismatch and missing hold feature |
Compared with AT25SF081-SSHD-B and W25Q80DVSSIG, the SST25WF080-75-4I-ZAE uniquely combines 1.8 V operation, AAI programming, and RST#/HOLD# flexibility - making it optimal for space-constrained, low-power industrial and medical devices where update efficiency and voltage compatibility are primary constraints.
Availability
SST25WF080-75-4I-ZAE is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics, networking bootloaders, and automotive infotainment systems requiring stable component supply and long-lifecycle support.
Supply support for SST25WF080-75-4I-ZAE 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 acquired Silicon Storage Technology (SST) in 2016 and now manufactures and supports the SST25WF080-75-4I-ZAE as part of its broad serial flash portfolio.
This device belongs to the Serial Flash 25 Series, designed specifically for low-voltage, high-reliability embedded code and data storage in resource-constrained industrial and medical applications.
FAQ
What is the operating voltage range for the SST25WF080-75-4I-ZAE?
The SST25WF080-75-4I-ZAE operates from 1.65 V to 1.95 V. This narrow 1.8 V nominal range enables direct integration with low-power microcontrollers and SoCs without external level shifters. Operation outside this window may result in undefined behavior or failure to execute commands. The device draws only 2 mA typical active current at 33 MHz, supporting energy-sensitive designs.
Does the SST25WF080-75-4I-ZAE support both SPI Mode 0 and Mode 3?
Yes, the SST25WF080-75-4I-ZAE is fully compatible with both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). This dual-mode support ensures interoperability with a wide range of host processors and FPGA SPI peripherals. The device samples SI on the rising edge of SCK and drives SO on the falling edge in both modes, maintaining consistent timing behavior regardless of idle clock polarity.
What is the purpose of the RST#/HOLD# pin on the SST25WF080-75-4I-ZAE?
The RST#/HOLD# pin on the SST25WF080-75-4I-ZAE serves two distinct functions: hardware reset (default at power-on) or serial communication hold. When configured as HOLD#, it suspends ongoing SPI transactions without deselecting the device or resetting internal state - useful for interrupt-driven systems. Switching between modes requires the Enable-Hold (AAH) instruction; returning to RST# requires power cycling.
How does Auto Address Increment (AAI) programming improve efficiency in the SST25WF080-75-4I-ZAE?
AAI programming in the SST25WF080-75-4I-ZAE eliminates the need to retransmit the address for each subsequent word write. After issuing the initial AAI-Word-Program command (ADH) and address, users send two data bytes per cycle to consecutive addresses. This reduces total programming time by up to 40% compared to standard byte-programming, especially during full-memory or large-section updates - a key advantage in OTA firmware deployment.
Is the SST25WF080-75-4I-ZAE recommended for new designs?
No - the SST25WF080-75-4I-ZAE is marked "Not Recommended for New Designs" per Microchip's official documentation (DS25024C, Rev. 10/12). While fully functional and supported for existing production, Microchip advises evaluating newer alternatives such as the SST26VF016B or AT25SF081 for new projects to ensure long-term supply continuity and access to enhanced features like Quad SPI and extended temperature grades.
SST25WF080-75-4I-ZAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-UFBGA, CSPBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 75 MHz
- Write Cycle Time - Word, Page:
- 25µs
- 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
SST25WF080-75-4I-ZAE FAQ
1.How can I place an order for SST25WF080-75-4I-ZAE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF080-75-4I-ZAE 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 SST25WF080-75-4I-ZAE reliable?
The price and inventory of SST25WF080-75-4I-ZAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25WF080-75-4I-ZAE is usually 5 days.
3.What payment methods are accepted for SST25WF080-75-4I-ZAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF080-75-4I-ZAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF080-75-4I-ZAE?
SST25WF080-75-4I-ZAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF080-75-4I-ZAE 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 SST25WF080-75-4I-ZAE?
For technical support, including SST25WF080-75-4I-ZAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25WF080-75-4I-ZAE requirements.
6.How does Aetrix verify that SST25WF080-75-4I-ZAE is sourced from the original manufacturer or authorized distributors?
All SST25WF080-75-4I-ZAE 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 SST25WF080-75-4I-ZAE meets industry standards.
7.What is the process for return or replacement of SST25WF080-75-4I-ZAE?
All SST25WF080-75-4I-ZAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF080-75-4I-ZAE, 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 SST25WF080-75-4I-ZAE part is unused and in its original packaging.
Return procedure for SST25WF080-75-4I-ZAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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