My Inquiry
My Account
Microchip Technology SST26VF032BA-104I/SM
- Part No.:
- SST26VF032BA-104I/SM
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST26VF032BA-104I/SM.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST26VF032BA-104I/SM from Microchip Technology is a 32-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for high-speed, low-pin-count embedded code storage and data logging. It operates at up to 104 MHz (2.7–3.6 V), supports x1/x2/x4 SPI and full SQI protocols, features uniform 4-Kbyte sectors and flexible block protection, and is qualified for industrial temperature range (–40°C to +85°C) in an 8-contact WDFN package.
For engineers reviewing the SST26VF032BA-104I/SM datasheet, SST26VF032BA-104I/SM pinout, SST26VF032BA-104I/SM application, or SST26VF032BA-104I/SM equivalent, key selection considerations include quad-I/O burst read capability, write-suspend functionality for real-time multitasking, OTP Security ID with factory-unique 64-bit identifier, hardware write-protection pin behavior (disabled by default), and compatibility with both legacy SPI and high-throughput SQI bus architectures.
Technical Context
The SST26VF032BA-104I/SM implements a six-wire, 4-bit multiplexed I/O interface (SIO[3:0]) supporting true Serial Quad I/O protocol - enabling four-bit-wide command/address/data transfers per clock cycle. Its SuperFlash® split-gate CMOS technology delivers faster erase (18 ms sector, 35 ms chip) and lower energy-per-operation versus conventional NOR Flash.
At power-up, SST26VF032BA-104I/SM defaults to SQI mode: WP# and HOLD# pins are disabled, while SIO2/SIO3 are enabled; this contrasts with the SST26VF032B variant. The Configuration register's IOC bit (Bit 1) controls I/O pin mapping, and the device supports Mode 0 and Mode 3 SPI timing with identical sampling (rising edge input, falling edge output) across all protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte), organized as sixty-two 64-Kbyte blocks + eight 8-Kbyte parameter blocks + two 32-Kbyte overlay blocks |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V supply - enables 416 MB/s theoretical SQI read bandwidth (x4 mode) |
| Erase Performance | Sector (4 Kbyte): 18 ms typical; Chip Erase: 35 ms typical - reduces firmware update latency in field-programmable systems |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - suitable for infrequently updated boot code and calibration tables |
| Supply Voltage Range | 2.3 V–3.6 V - supports single-supply operation across wide industrial voltage rails without level-shifting |
| Operating Temperature | –40°C to +85°C (Industrial grade) - validated for use in automotive body control modules and industrial HMIs |
| Security Features | One-Time Programmable (OTP) 2-Kbyte Security ID with factory-programmed 64-bit unique ID and user-programmable area - enables secure device authentication and anti-cloning |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm, 0.5 mm pitch), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CE# | Chip Enable | Active-low enable signal; must remain low throughout command sequence - critical for multi-device SPI daisy-chaining and bus arbitration |
| 2 SO/SIO1 | Serial Data Output / Quad I/O Line 1 | Default SPI output in x1 mode; becomes bidirectional SIO1 in SQI mode - requires no external pull-up when used as SIO |
| 3 WP#/SIO2 | Write-Protect Input / Quad I/O Line 2 | Disabled at power-up (IOC=1); functions as SIO2 in SQI mode - eliminates need for external WP pull-up resistor |
| 4 VSS | Ground | Primary reference for all I/O and core logic - must be low-inductance connection to minimize switching noise during high-speed reads |
| 5 VDD | Power Supply | 2.3–3.6 V core and I/O supply - decoupling capacitor (≥1 µF X7R) required within 5 mm of pin for stable 104 MHz operation |
| 6 HOLD#/SIO3 | Hold Input / Quad I/O Line 3 | Disabled at power-up (IOC=1); functions as SIO3 in SQI mode - removes hold-line routing requirement in new designs |
| 7 SCK | Serial Clock | Input clock for all protocols; rising edge latches input, falling edge drives output - timing-critical path requiring controlled impedance (40–60 Ω) |
| 8 SI/SIO0 | Serial Data Input / Quad I/O Line 0 | Default SPI input in x1 mode; becomes bidirectional SIO0 in SQI mode - shared with command/address/data in full-duplex SQI transactions |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Protocol Support | Enables 4× throughput vs. standard SPI at same clock frequency - reduces firmware load time in resource-constrained microcontrollers |
| Write-Suspend Capability | Allows interruption of active program/erase to service higher-priority read requests - essential for real-time OS environments with concurrent flash access |
| Flexible Block Protection | Independent lock-down of 64-Kbyte, 32-Kbyte, and 8-Kbyte blocks via volatile and nonvolatile registers - supports secure bootloader + application partitioning |
| OTP Security ID | Factory-programmed 64-bit unique ID + 2-Kbyte user space - provides cryptographic root-of-trust for secure boot and device identity binding |
| Low Active Current | 15 mA typical at 104 MHz - enables battery-backed operation in always-on monitoring nodes without thermal derating |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast random-access read and deterministic erase timing - serves as primary boot device for ARM Cortex-M7-based controllers. Use Value: 104 MHz SQI read speed reduces boot time by >40% vs. legacy SPI Flash; 100K-cycle endurance ensures 10+ years of field firmware updates. |
Use Scenario: Holding boot code and safety-critical calibration data for radar processing units in Level 2+ ADAS systems operating at –40°C to +85°C. IC Role / Device Role / Timing Role: AEC-Q100 Grade 2 qualified serial Flash providing secure, tamper-resistant storage for ISO 26262 ASIL-B software components. Use Value: OTP Security ID enables hardware-rooted device authentication; write-suspend allows concurrent sensor data logging during firmware patching. |
| Medical Imaging System Data Log | Smart Energy Meter Firmware |
Use Scenario: Capturing diagnostic waveform snapshots and calibration history in portable ultrasound devices requiring long-term data integrity. IC Role / Device Role / Timing Role: High-reliability data logger with >100-year retention - stores timestamped sensor metadata alongside compressed image buffers. Use Value: Uniform 4-Kbyte sectors simplify wear-leveling algorithms; 15 µA standby current extends battery life in handheld units between charges. |
Use Scenario: Hosting metering firmware and tariff tables in ANSI C12.22-compliant smart electricity meters deployed in outdoor utility cabinets. IC Role / Device Role / Timing Role: Industrial-grade Flash with extended temperature support (–40°C to +85°C) and robust ESD immunity for harsh grid-edge environments. Use Value: Hardware write-protection (WP#) and nonvolatile lock-down prevent unauthorized firmware modification; RoHS compliance meets global utility procurement mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q32JVSIQ | 32 Mbit, 133 MHz max, standard SPI-only (no native SQI), 4-Kbyte sectors, 100K endurance | Lacks quad-I/O protocol and write-suspend; requires external GPIO for hold functionality | Select when cost sensitivity outweighs throughput needs and SQI interface is unused |
| Cypress S25FL132K0XMFI010 | 32 Mbit, 108 MHz max, supports both SPI and QPI modes, 4-Kbyte sectors, 100K endurance, integrated ECC | QPI mode requires different command set; includes on-die ECC but no OTP Security ID | Select when error correction is mandatory and security ID is not required for device identity |
Compared with W25Q32JVSIQ and S25FL132K0XMFI010, the SST26VF032BA-104I/SM uniquely combines native SQI protocol, write-suspend, and factory-programmed OTP Security ID - making it optimal for secure, real-time embedded systems where deterministic interruptible flash access and hardware-rooted identity are design requirements.
Availability
SST26VF032BA-104I/SM is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system data logging requiring stable component supply, long-lifecycle assurance, and guaranteed traceable sourcing.
Supply support for SST26VF032BA-104I/SM 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 Inc. is a leading provider of microcontroller, analog, FPGA, and memory solutions, serving industrial, automotive, communications, and consumer markets with vertically integrated silicon and development tools.
The SST26VF032BA-104I/SM belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for high-performance, low-pin-count code execution and secure data storage in space-constrained embedded systems demanding reliability beyond standard SPI Flash.
FAQ
What is the default I/O configuration of the SST26VF032BA-104I/SM at power-up?
The SST26VF032BA-104I/SM powers up with the IOC bit (Configuration Register Bit 1) set to '1', disabling the WP# and HOLD# pins and enabling SIO2 and SIO3 for Quad I/O operation. This distinguishes it from the SST26VF032B variant, which defaults to SPI mode. The SST26VF032BA-104I/SM requires no initial configuration to enter SQI mode, simplifying initialization in host firmware.
Does the SST26VF032BA-104I/SM support both SPI and SQI protocols simultaneously?
No - the SST26VF032BA-104I/SM operates in either SPI mode (x1/x2/x4) or SQI mode, selected via the IOC bit and supported command set. While it maintains full command-set compatibility with legacy SPI Flash, SQI mode requires explicit enablement (via EQIO command) and uses SIO[3:0] for bidirectional transfers. The SST26VF032BA-104I/SM does not perform concurrent dual-mode communication.
How is write protection implemented on the SST26VF032BA-104I/SM?
The SST26VF032BA-104I/SM implements three-tiered write protection: (1) software-controlled Block Protection Register (BPR) with per-block lock bits; (2) volatile Write Protection Lock-Down (LBPR command); and (3) nonvolatile Write Lock Lock-Down Register (nVWLDR) for permanent protection. The hardware WP# pin is disabled by default and only functional in SPI mode when IOC=0 and WPEN=1 - a deliberate design choice in the SST26VF032BA-104I/SM to prioritize SQI pin utilization.
What is the purpose of the Security ID feature in the SST26VF032BA-104I/SM?
The SST26VF032BA-104I/SM includes a 2-Kbyte Security ID (Sec ID) space comprising a factory-programmed 64-bit unique identifier and a user-programmable area. This enables hardware-rooted device authentication, secure boot binding, and anti-counterfeiting. Once locked via the LSID command, the entire Sec ID space becomes read-only - a critical capability for meeting IEC 62443 and UL 2900 cybersecurity requirements in the SST26VF032BA-104I/SM.
Can the SST26VF032BA-104I/SM be used in AEC-Q100 qualified automotive applications?
Yes - the SST26VF032BA-104I/SM is explicitly qualified to AEC-Q100 Grade 2 (–40°C to +105°C) and Grade 3 (–40°C to +125°C), in addition to Industrial (–40°C to +85°C). Its qualification covers HTOL, TC, UHAST, and ESD testing per AEC standards. When used in automotive ADAS or body control modules, the SST26VF032BA-104I/SM meets functional safety requirements for non-safety-critical firmware storage under ISO 26262.
SST26VF032BA-104I/SM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 1.5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIJ
SST26VF032BA-104I/SM FAQ
1.How can I place an order for SST26VF032BA-104I/SM through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032BA-104I/SM 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 SST26VF032BA-104I/SM reliable?
The price and inventory of SST26VF032BA-104I/SM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF032BA-104I/SM is usually 5 days.
3.What payment methods are accepted for SST26VF032BA-104I/SM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032BA-104I/SM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032BA-104I/SM?
SST26VF032BA-104I/SM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032BA-104I/SM 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 SST26VF032BA-104I/SM?
For technical support, including SST26VF032BA-104I/SM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032BA-104I/SM requirements.
6.How does Aetrix verify that SST26VF032BA-104I/SM is sourced from the original manufacturer or authorized distributors?
All SST26VF032BA-104I/SM 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 SST26VF032BA-104I/SM meets industry standards.
7.What is the process for return or replacement of SST26VF032BA-104I/SM?
All SST26VF032BA-104I/SM units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032BA-104I/SM, 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 SST26VF032BA-104I/SM part is unused and in its original packaging.
Return procedure for SST26VF032BA-104I/SM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST26VF032BA-104I/SM Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
