Microchip Technology SST26VF032-80-5I-S2AE

Overview

SST26VF032-80-5I-S2AE from Microchip Technology is a Serial Quad I/O™ (SQI™) flash memory IC supporting 32 Mbit density, 80 MHz clock frequency, and single-supply 2.7–3.6 V operation. It delivers 320 Mbit/s sustained data rate via 4-bit multiplexed I/O and enables execute-in-place (XIP) in portable embedded systems requiring high-speed code storage.

For engineers reviewing the SST26VF032-80-5I-S2AE datasheet, SST26VF032-80-5I-S2AE pinout, SST26VF032-80-5I-S2AE application, or SST26VF032-80-5I-S2AE equivalent, key selection considerations include SQI vs. SPI mode compatibility, 62-block memory architecture with parameter overlay blocks, industrial temperature range (-40°C to +85°C), WSON-8 package footprint, and Security ID programmability.

Technical Context

The SST26VF032-80-5I-S2AE implements a 4-bit multiplexed serial interface supporting both Mode 0 and Mode 3 SPI-compatible timing, with initial power-on reset defaulting to standard SPI (SI/SO) for backward compatibility. Its SuperFlash® split-gate CMOS technology enables fast erase (18 ms block-erase typical) and program (1 ms page-program typical) while maintaining >100 years data retention.

It features dual-bus protocol support: traditional SPI (33 MHz max Read) and high-performance SQI (80 MHz High-Speed Read, 320 Mbit/s throughput). Memory organization includes uniform 4 KByte sectors, eight 8 KByte parameter overlay blocks, two 32 KByte overlay blocks, and 62 uniform 64 KByte erasable blocks - totaling 32 Mbit (4 MByte) capacity.

Key Specifications

Pinout & Package

Package: 8-contact WSON (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q32JVSSIQ and S25FL132K0XMFI010, the SST26VF032-80-5I-S2AE uniquely combines SQI's 4-bit bandwidth advantage, Index Jump for reduced command overhead, and 256-bit Security ID - making it optimal for resource-constrained, security-aware portable electronics where board space and firmware integrity are critical.

Availability

SST26VF032-80-5I-S2AE is available at Aetrix Electronics and suitable for wireless firmware storage, industrial HMI boot memory, GPS navigation modules, and optical disk drive controllers requiring stable component supply across multi-year production cycles.

Supply support for SST26VF032-80-5I-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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with headquarters in Chandler, Arizona.

The SST26VF032-80-5I-S2AE belongs to Microchip's Serial Quad I/O™ flash family, designed specifically for space-constrained portable electronics needing high-speed, low-power, and secure non-volatile code and data storage.

FAQ

What is the maximum clock frequency supported by the SST26VF032-80-5I-S2AE in SQI mode?

The SST26VF032-80-5I-S2AE supports up to 80 MHz in Serial Quad I/O™ (SQI) mode, delivering a sustained data rate of 320 Mbit/s. This frequency applies to High-Speed Read and Quad I/O operations after issuing the EQIO command. In default SPI mode, the maximum Read frequency is 33 MHz. The "80" in the part number explicitly denotes this 80 MHz SQI rating.

Does the SST26VF032-80-5I-S2AE support both SPI and SQI protocols simultaneously?

No, the SST26VF032-80-5I-S2AE does not operate in both protocols simultaneously. It powers up in SPI mode (SI/SO pins active) and requires an explicit EQIO command to switch to SQI mode (SIO[3:0] active). A RSTQIO command resets it back to SPI mode. The interface mode is mutually exclusive and controlled by internal state, not hardware pin strapping.

How many memory blocks does the SST26VF032-80-5I-S2AE contain, and what are their sizes?

The SST26VF032-80-5I-S2AE contains 62 uniform 64 KByte erasable blocks, plus eight 8 KByte parameter overlay blocks (four top, four bottom), and two 32 KByte overlay blocks (one top, one bottom). This totals 32 Mbit (4 MByte) of addressable memory. Block sizes are fixed per region and documented in the memory map (Figure 3 of DS-25017A).

Can the Security ID in the SST26VF032-80-5I-S2AE be reprogrammed after initial programming?

The 64-bit factory-programmed portion of the Security ID in the SST26VF032-80-5I-S2AE is permanent and cannot be altered. The 192-bit user-programmable segment can be written once using the Program SID command, and then permanently locked with the Lockout SID command. Once locked, neither segment is erasable or reprogrammable - ensuring cryptographic binding of device identity.

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

The Index Jump feature in the SST26VF032-80-5I-S2AE enables relative addressing - allowing commands like Read PI (page-index), Read I (block-index), and Read BI (block-index jump) to access data based on offset from current position rather than absolute addresses. This reduces command overhead in streaming applications such as audio buffering or firmware patching, where sequential access patterns dominate.