Microchip Technology SST26VF032-80-5I-S2AE-T

Overview

SST26VF032-80-5I-S2AE-T from Microchip Technology is a Serial Quad I/O™ (SQI™) flash memory IC designed for high-speed, low-pin-count code storage and execute-in-place (XIP) applications. It delivers 32 Mbit (4 MB) density, supports 80 MHz clock frequency with 320 Mbit/s sustained data rate, operates from 2.7–3.6 V, and features industrial temperature range (–40°C to +85°C). It is used in portable electronics such as GPS modules and Bluetooth headsets where compact footprint and fast read performance are critical.

For engineers reviewing the SST26VF032-80-5I-S2AE-T datasheet, SST26VF032-80-5I-S2AE-T pinout, SST26VF032-80-5I-S2AE-T application, or SST26VF032-80-5I-S2AE-T equivalent, key selection considerations include SQI vs. SPI mode compatibility, 8-contact WSON package constraints, 4 KB uniform sector erase granularity, Security ID programmability, and write-suspend capability for real-time firmware updates.

Technical Context

The SST26VF032-80-5I-S2AE-T implements a 4-bit multiplexed serial interface (SIO[3:0]) supporting both legacy SPI (Mode 0/3) and high-performance SQI protocols. Its SuperFlash® split-gate cell architecture enables single-supply 2.7–3.6 V operation, 100,000 program/erase cycles, and >100 years data retention.

It integrates flexible protection mechanisms including per-block write-locking (64 KB, 32 KB, and eight 8 KB parameter blocks), Write-Protection Lock-Down (LPBR), and a 256-bit Security ID with factory-programmed 64-bit unique ID and user-programmable 192-bit segment - all accessible via dedicated command set (e.g., EQIO, RDSR, WBPR, Program SID).

Key Specifications

Pinout & Package

Package: 8-contact WSON (6 mm × 5 mm), RoHS-compliant, industrial-grade.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial flash memory applications.

Compared with SST26VF032-80-5I-S2AE-T, W25Q32JVSIQ offers higher clock speed but sacrifices SQI bandwidth and security; S25FL132K0XMFI00 provides QPI flexibility but omits Index Jump and OTP-based device identity - making SST26VF032-80-5I-S2AE-T uniquely suited for XIP-capable, security-aware portable systems.

Availability

SST26VF032-80-5I-S2AE-T is available at Aetrix Electronics and suitable for GPS navigation modules, Bluetooth audio headsets, optical disk drive controllers, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SST26VF032-80-5I-S2AE-T 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 delivering microcontrollers, analog, FPGA, and memory solutions with emphasis on reliability, security, and long-term support.

The SST26VF032-80-5I-S2AE-T belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for compact, high-bandwidth embedded systems needing execute-in-place capability, robust firmware protection, and industrial temperature resilience.

FAQ

What interface protocols does the SST26VF032-80-5I-S2AE-T support?

The SST26VF032-80-5I-S2AE-T supports both traditional SPI (Mode 0 and Mode 3) and Serial Quad I/O™ (SQI) protocols. On power-up, it defaults to SPI mode for backward compatibility. The EQIO command (0x38) enables SQI mode, using SIO[3:0] for simultaneous 4-bit data transfer - doubling bandwidth versus SPI at the same 80 MHz clock. The RSTQIO command (0xFF) reverts to SPI mode.

Does the SST26VF032-80-5I-S2AE-T support execute-in-place (XIP) operation?

Yes, the SST26VF032-80-5I-S2AE-T supports true execute-in-place operation due to its 80 MHz High-Speed Read capability and low-latency continuous burst access. When configured in SQI mode, it delivers up to 320 Mbit/s sustained throughput - sufficient to feed ARM Cortex-M or RISC-V cores without SRAM shadowing. This is confirmed in the datasheet's "Serial Quad I/O (SQI) Flash Memory" introduction and Figure 10/11 timing diagrams.

How many erase blocks does the SST26VF032-80-5I-S2AE-T contain?

The SST26VF032-80-5I-S2AE-T contains 62 uniform 64 KB erasable overlay blocks, plus four 8 KB top and four 8 KB bottom parameter overlay blocks, two 32 KB overlay blocks (one top, one bottom), and uniform 4 KB sectors throughout - totaling 1024 sectors. This is explicitly stated in the "Memory Organization" section and Figure 3 memory map of the DS-25017A datasheet.

Can the Security ID in the SST26VF032-80-5I-S2AE-T be locked permanently?

Yes, the 256-bit Security ID in the SST26VF032-80-5I-S2AE-T can be permanently locked using the Lockout Sec ID (85H) command. Once executed, the SEC bit (bit 5) in the Status Register becomes '1' and cannot be reset - preventing any further writes to the entire Security ID space. The factory-programmed 64-bit segment is immutable; only the 192-bit user segment is programmable prior to lockout.

What is the purpose of the Index Jump feature in the SST26VF032-80-5I-S2AE-T?

The Index Jump feature (Read PI, Read I, Read BI commands) enables relative addressing within 256-byte pages, 64 KB blocks, or across 64 KB blocks - reducing command overhead for sequential or patterned access. For example, after a 64-byte Read Burst from address 0x1E, a Read PI with offset 0x40 jumps to 0x5E without resending full 24-bit address. This accelerates boot loader execution and configuration table parsing, as documented in Section 17 of DS-25017A.