SST25VF080B-80-4I-S2AE

Introduction: SST25VF080B-80-4I-S2AE is an 8‑Mbit serial SPI flash memory from SST (Solid State Technology). It provides non‑volatile code/data storage for embedded systems and is accessed via a standard SPI interface.
Key features
- Capacity: 8 Mbit (1 MByte)
- Interface: Serial SPI (3‑ or 4‑wire compatible)
- Speed: up to 80 MHz clock
- Addressing: 3‑byte addressing (suitable for up to 16 Mbit parts)
- Memory organization: 256‑byte pages; supports Page Program, Sector Erase (4 KB), Block Erase (32 KB/64 KB), and Chip Erase
- Power and temp: single supply 2.7–3.6 V; industrial temperature range (-40°C to 85°C)
- Endurance/controls: standard Write Enable/Status register and Optional Deep Power‑Down
- Package: 8‑pin package; S2AE denotes RoHS/industrial grade variant
Applications
- Firmware/boot code storage, firmware updates, data logging, and configuration storage in microcontroller/SoC systems
Note: exact timing, commands, and pinout are in the SST25VF080B datasheet for the S2AE variant.

Possible equivalents (8-Mbit SPI NOR with similar Quad/IO options):
- Winbond W25Q80BV (or W25Q80DV)
- Macronix MX25L8006E
- GigaDevice GD25Q80B
- Spansion/Cypress S25FL080P
- ISSI IS25LP080D
- Puya P25Q80UD
- Adesto AT25SF081A
Note: check exact voltage (2.7–3.6V), package type, and Quad I/O support; timing and addressing may vary by vendor.

Key features of SST25VF080B-80-4I-S2AE:
- 8 Mbit (1 MB) serial flash memory
- SPI interface with 4 I/O lines (4I) for higher throughput
- Up to 80 MHz operation
- 256-byte page size; supports fast/random reads and page programming
- Sector/block architecture: typically 4 KB sectors and 64 KB blocks; chip erase option
- Write Enable Latch, Write Protect via status register; hardware/software protection
- Low-power modes: Deep Power-Down and standby; fast wake-up
- Endurance ~100,000 erase/program cycles; data retention around 20 years
- Supply voltage 2.7–3.6 V; operating temperature generally -40°C to 85°C (industrial grade) or suitable automotive grade variants
Note: exact packaging and temperature grade may vary by lot; consult the datasheet for precise specs of this specific suffix.

- Pin count: 8 pins (SOIC-8).
- Function: 8‑Mbit serial SPI flash memory (SST25VF080B), used to store firmware/data. Interfaces via SPI with CS, CLK, MOSI (DI), MISO (DO); also includes WP, HOLD, plus VCC and GND.

- Manufacturer: Microchip Technology Inc. (the SST brand; SST originally stood for Silicon Storage Technology)
- What kind of company: A multinational semiconductor company that designs, manufactures, and sells memory devices (including serial flash), microcontrollers, and analog ICs for embedded systems; publicly traded on NASDAQ as MCHP.

Applications of SST25VF080B-80-4I-S2AE:
- Boot/firmware flash for microcontrollers/SoCs
- In-field firmware updates for embedded systems
- Storage for configuration data, calibration values, and logs
- High-throughput code reads via Quad-SPI (80 MHz) for fast startup
- Used in consumer electronics (printers, set-top boxes, networking gear, wearables) and automotive/industrial controllers that require reliable, compact non-volatile memory

8-pin surface-mount SOIC (SOP-8) package (S2 code).