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Microchip Technology SST25PF080B-80-4C-S2AE
- Part No.:
- SST25PF080B-80-4C-S2AE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST25PF080B-80-4C-S2AE.pdf
- Description:
- IC FLASH 8MBIT SPI 80MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,374
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Product details
Overview
SST25PF080B-80-4C-S2AE from Microchip Technology is an 8 Mbit SPI serial flash memory IC designed for embedded firmware storage and code execution in resource-constrained systems. It operates from a single 2.3–3.6V supply, supports 80 MHz read speed (at 2.7–3.6V), features uniform 4 KByte sectors and 64 KByte overlay blocks, and delivers 100,000 program/erase cycles with >100 years data retention - deployed in industrial control modules requiring reliable nonvolatile code storage.
For engineers reviewing the SST25PF080B-80-4C-S2AE datasheet, SST25PF080B-80-4C-S2AE pinout, SST25PF080B-80-4C-S2AE application, or SST25PF080B-80-4C-S2AE equivalent, key selection criteria include SPI Mode 0/3 compatibility, hardware hold/resume capability via HOLD# pin, software block protection granularity (BP2–BP0), AAI programming efficiency, and RoHS-compliant 8-lead SOIC (200 mil) packaging.
Technical Context
The SST25PF080B-80-4C-S2AE implements a four-wire SPI interface with dual-mode clock polarity support (Mode 0 and Mode 3), enabling interoperability with diverse microcontroller host interfaces. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling injectors to achieve faster erase times (18 ms sector-erase typical) and lower active current (10 mA typical) versus conventional NOR flash.
It integrates dedicated control logic for Auto Address Increment (AAI) word-programming, hardware RY/BY# status output on SO during AAI (enabled via EBSY command), and dual-level write protection: pin-driven WP# for BPL bit lock-down and software-configurable BP2–BP0 bits defining protected memory regions from none to full 8 Mbit array.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1 MByte) organized as uniform 4 KByte sectors, 32 KByte and 64 KByte overlay blocks - enables fine-grained firmware partitioning and OTA update management. |
| Supply Voltage | 2.3–3.6V single supply - compatible with 2.5V and 3.3V system rails without level-shifting. |
| Max Read Speed | 80 MHz (2.7–3.6V); 50 MHz (2.3–2.7V) - supports high-throughput boot code fetch and real-time data logging. |
| Endurance | 100,000 program/erase cycles (typical) - sufficient for field-upgradable firmware with frequent minor revisions. |
| Data Retention | >100 years at +25°C - ensures long-term reliability in unattended industrial deployments. |
| Active Read Current | 10 mA (typical at 80 MHz) - minimizes power budget impact during active code execution. |
| Standby Current | 5 μA (typical) - enables ultra-low-power sleep modes in battery-backed applications. |
| Operating Temp | 0°C to +70°C (Commercial grade) - validated for indoor industrial and consumer electronics environments. |
Pinout & Package
Package: 8-lead SOIC (200 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 sequences - enables multi-device SPI bus sharing. |
| SO | Serial Data Output | Tri-state output shifting data on SCK falling edge; reconfigurable as RY/BY# during AAI programming for hardware busy detection. |
| WP# | Write Protect | Enables/disables BPL bit lock-down; when low, prevents modification of BP2–BP0 unless BPL=0 - provides hardware-enforced write protection. |
| VSS | Ground | Reference return path for all digital and analog circuitry - requires low-impedance PCB connection to minimize noise coupling. |
| VDD | Power Supply | 2.3–3.6V input; decoupling capacitor (0.1 μF) required near pin to suppress switching transients. |
| HOLD# | Hold Control | Pauses ongoing SPI transaction without deselecting device or resetting internal state - critical for interrupt-driven host firmware. |
| SCK | Serial Clock | Timing reference for SI/SO data transfer; supports Mode 0 (idle low) and Mode 3 (idle high) - eliminates need for clock polarity translation. |
| SI | Serial Data Input | Command/address/data input latched on SCK rising edge - supports standard SPI master peripherals without custom timing logic. |
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. |
| Hardware End-of-Write Detection | SO pin outputs RY/BY# status during AAI mode (via EBSY command), removing software polling overhead and improving deterministic timing. |
| Flexible Block Protection | Software-configurable BP2–BP0 bits define protected memory regions from none to full array - enables secure bootloader + application partitioning. |
| Security ID (SecID) | 256-bit space: factory-programmed 64-bit unique ID + user-programmable 192-bit segment - supports device authentication and license binding. |
| Uniform Erase Architecture | Independent 4 KByte sector, 32 KByte block, and 64 KByte block erase commands - allows precise wear leveling and partial updates without full chip erase. |
| Low-Power Standby | 5 μA typical standby current - extends battery life in portable diagnostics tools and sensor nodes. |
Applications
| Firmware Storage in PLC Modules | Boot Code Storage for Industrial Gateways |
|---|---|
|
Use Scenario: Storing programmable logic controller (PLC) firmware images and configuration parameters in DIN-rail mounted automation hardware. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast random-access read capability and robust write endurance for field updates. Use Value: 80 MHz read speed enables sub-100ms boot time; 100,000-cycle endurance supports quarterly firmware patches over 10+ year product lifetime. |
Use Scenario: Holding boot loader and Linux kernel images in edge gateways connecting Modbus RTU devices to cloud platforms. IC Role / Device Role / Timing Role: Primary SPI flash for XIP-capable boot sequence and runtime firmware partitioning. Use Value: Uniform 4 KByte sectors allow atomic OTA updates of bootloader region without corrupting application code; HOLD# pin preserves transaction state during interrupt servicing. |
| Secure Configuration Storage in Medical Devices | Firmware Vault in Network Switches |
|
Use Scenario: Storing calibrated sensor offsets, regulatory compliance flags, and cryptographic keys in Class II medical diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant configuration vault with hardware write lock-down and unique identity binding. Use Value: WP#-enabled BPL lock-down prevents accidental overwrite of calibration data; 256-bit Security ID links firmware to specific hardware units for audit traceability. |
Use Scenario: Hosting multiple firmware versions and feature licenses in managed Ethernet switches with hot-swappable modules. IC Role / Device Role / Timing Role: High-reliability firmware repository supporting version rollback and feature activation via block-protection bits. Use Value: BP2–BP0 software protection isolates bootloader (locked), active firmware (read-only), and update staging area (writable) - preventing bricking during concurrent upgrades. |
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 |
|---|---|---|---|
| SST25VF080B | Successor device with identical pinout, density, and voltage range; improved manufacturing process yields higher yield and extended lifecycle support. | Same use cases; preferred for new designs due to active production status and updated qualification testing. | Select SST25VF080B for new designs requiring long-term supply assurance and latest revision silicon. |
| AT25DF081A-SSH-T | 8 Mbit SPI flash from Microchip (acquired Atmel); supports 85 MHz max read, deeper power-down mode (1 μA), but lacks Security ID and AAI programming. | Better suited for ultra-low-power sensor hubs where security features are secondary to standby current. | Choose AT25DF081A-SSH-T only if <1 μA standby is mandatory and Security ID/AAI are unnecessary. |
Compared with SST25VF080B, the SST25PF080B-80-4C-S2AE offers identical functionality but is obsolete - SST25VF080B provides enhanced reliability and supply continuity. Versus AT25DF081A-SSH-T, it trades lower standby current for integrated security and faster programming throughput via AAI.
Availability
SST25PF080B-80-4C-S2AE is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and network infrastructure requiring stable component supply despite its obsolete status - supported via legacy inventory and cross-reference assistance.
Supply support for SST25PF080B-80-4C-S2AE 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 devices, and memory solutions, with a focus on embedded control and connectivity.
The SST25PF080B-80-4C-S2AE belongs to Microchip's 25 series Serial Flash family, engineered for cost-sensitive, space-constrained embedded systems needing reliable, low-pin-count nonvolatile storage with SPI interface simplicity.
FAQ
What is the operating voltage range for the SST25PF080B-80-4C-S2AE?
The SST25PF080B-80-4C-S2AE operates from a single supply of 2.3V to 3.6V. At 2.7–3.6V, it achieves its rated 80 MHz maximum read speed; at 2.3–2.7V, maximum read speed is reduced to 50 MHz. This wide voltage range allows direct interfacing with both 2.5V and 3.3V system rails without external level shifters - a key design advantage for mixed-voltage embedded platforms using the SST25PF080B-80-4C-S2AE.
Does the SST25PF080B-80-4C-S2AE support SPI Mode 0 and Mode 3?
Yes, the SST25PF080B-80-4C-S2AE explicitly supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as confirmed in Section 4.0 of the official datasheet. This dual-mode compatibility ensures seamless integration with a broad range of microcontroller SPI peripherals - including those found in STM32, PIC32, and NXP Kinetis families - without requiring clock polarity inversion logic. The SST25PF080B-80-4C-S2AE samples SI on the rising edge and drives SO on the falling edge in both modes.
How does the HOLD# pin function on the SST25PF080B-80-4C-S2AE?
The HOLD# pin on the SST25PF080B-80-4C-S2AE suspends an ongoing SPI transaction without deselecting the device or resetting internal state. When CE# is low and HOLD# transitions low coincident with SCK's active-low state, the device enters Hold mode: SO goes high-impedance while SI and SCK remain valid. Communication resumes upon HOLD# going high. This enables deterministic interrupt handling in real-time firmware - a critical capability for time-sensitive applications using the SST25PF080B-80-4C-S2AE as boot memory.
What write protection mechanisms does the SST25PF080B-80-4C-S2AE provide?
The SST25PF080B-80-4C-S2AE implements two-tiered write protection: (1) hardware-based via the WP# pin, which enables lock-down of BP2–BP0 bits through the BPL bit, and (2) software-based via BP2–BP0 bits in the status register, allowing configurable protection of memory regions from none to full 8 Mbit array. The SST25PF080B-80-4C-S2AE also supports Security ID lockout and chip-erase inhibition when any block is protected - ensuring robust firmware integrity in safety-critical deployments.
Is the SST25PF080B-80-4C-S2AE still in active production?
No, the SST25PF080B-80-4C-S2AE is marked "Obsolete Device" in Microchip's official documentation (DS20005137B), with SST25VF080B designated as its recommended replacement. However, Aetrix Electronics maintains legacy inventory and supports continued use in existing designs through traceable sourcing and cross-reference guidance. For new designs, Microchip advises migration to SST25VF080B, which retains full pin, package, and functional compatibility with the SST25PF080B-80-4C-S2AE.
SST25PF080B-80-4C-S2AE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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:
- 80 MHz
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- -
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SST25PF080B-80-4C-S2AE FAQ
1.How can I place an order for SST25PF080B-80-4C-S2AE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25PF080B-80-4C-S2AE 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 SST25PF080B-80-4C-S2AE reliable?
The price and inventory of SST25PF080B-80-4C-S2AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25PF080B-80-4C-S2AE is usually 5 days.
3.What payment methods are accepted for SST25PF080B-80-4C-S2AE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25PF080B-80-4C-S2AE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25PF080B-80-4C-S2AE?
SST25PF080B-80-4C-S2AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25PF080B-80-4C-S2AE 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 SST25PF080B-80-4C-S2AE?
For technical support, including SST25PF080B-80-4C-S2AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25PF080B-80-4C-S2AE requirements.
6.How does Aetrix verify that SST25PF080B-80-4C-S2AE is sourced from the original manufacturer or authorized distributors?
All SST25PF080B-80-4C-S2AE 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 SST25PF080B-80-4C-S2AE meets industry standards.
7.What is the process for return or replacement of SST25PF080B-80-4C-S2AE?
All SST25PF080B-80-4C-S2AE units undergo pre-shipment inspection (PSI). If there is an issue with SST25PF080B-80-4C-S2AE, 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 SST25PF080B-80-4C-S2AE part is unused and in its original packaging.
Return procedure for SST25PF080B-80-4C-S2AE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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