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Microchip Technology SST26VF016BA-104I/SN
- Part No.:
- SST26VF016BA-104I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST26VF016BA-104I/SN.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,320
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Product details
Overview
SST26VF016BA-104I/SN from Microchip Technology is a 16 Mbit Serial Quad I/O (SQI) flash memory IC operating at 104 MHz (2.7–3.6 V) or 80 MHz (2.3–3.6 V), supporting x1/x2/x4 SPI and full SQI protocols, with 4 KByte uniform sectors, 100,000 program/erase cycles, and industrial temperature range (−40°C to +85°C). It serves as non-volatile code/data storage in microcontroller boot systems, firmware update buffers, and embedded configuration memory.
For engineers reviewing the SST26VF016BA-104I/SN datasheet, SST26VF016BA-104I/SN pinout, SST26VF016BA-104I/SN application, or SST26VF016BA-104I/SN equivalent, key selection considerations include SQI vs. SPI mode compatibility, 8-lead SOIC (3.90 mm) package footprint, 256-byte page programming, hardware write protection via WP# pin, and Security ID OTP capability.
Technical Context
The SST26VF016BA-104I/SN implements a six-wire, 4-bit multiplexed I/O interface (SIO[3:0]) for SQI operation, enabling quad-data-rate transfers at up to 104 MHz while maintaining full command-set compatibility with legacy SPI devices. Its SuperFlash® split-gate CMOS technology delivers faster erase (18 ms sector, 35 ms chip) and lower active current (15 mA typical @ 104 MHz) versus conventional NOR flash.
It supports dual-mode operation: default SPI mode after power-on reset (with SI/SO pins), and configurable SQI mode (via EQIO command) using shared SIO[3:0] lines. Mode 0 and Mode 3 clock polarity support ensures interoperability with diverse host controllers, and write-suspend functionality allows interleaved access during long erase/program operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized in uniform 4 KByte sectors and flexible overlay blocks |
| Max Clock Frequency | 104 MHz @ 2.7–3.6 V; enables 416 MB/s effective throughput in SQI x4 mode |
| Supply Voltage Range | 2.3–3.6 V single supply - supports direct interfacing with 2.5 V and 3.3 V logic domains |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 85°C |
| Erase Performance | Sector/Block erase: 18 ms typical; Chip erase: 35 ms typical - reduces firmware update latency |
| Page Programming | 256 bytes per page in x1 or x4 mode - aligns with common MCU cache line and OTA packet sizes |
| Security Features | One-time programmable 2 KByte Security ID with factory-programmed 64-bit unique ID and user area |
Pinout & Package
Package: 8-lead SOIC (3.90 mm body width), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence and data transfer |
| SO/SIO1 | Serial Output / Quad I/O Line 1 | Default SPI output in x1 mode; becomes bidirectional SIO1 in SQI mode after EQIO command |
| WP#/SIO2 | Write Protect Input / Quad I/O Line 2 | Hardware write-protection control for Block-Protection register when IOC=0 and WPEN=1 |
| VSS | Ground | Reference return path for all digital and analog circuitry; requires low-impedance PCB connection |
| VDD | Power Supply | 2.3–3.6 V supply input; decoupling capacitor (0.1 µF) required near pin |
| HOLD#/SIO3 | Hold Input / Quad I/O Line 3 | Pauses SPI communication without resetting state; disabled in SQI mode; tied high if unused |
| SCK | Serial Clock | Timing reference for all serial transfers; rising edge latches input, falling edge outputs data |
| SI/SIO0 | Serial Input / Quad I/O Line 0 | Default SPI input in x1 mode; becomes bidirectional SIO0 in SQI mode after EQIO command |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface (SQI) | Enables 4× bandwidth over standard SPI at same clock frequency - reduces host CPU overhead and bus contention |
| Flexible Erase Architecture | Uniform 4 KByte sectors plus eight 8 KByte, two 32 KByte, and thirty 64 KByte overlay blocks - supports granular firmware partitioning |
| Write-Suspend Capability | Allows host to pause ongoing erase/program and service higher-priority read requests - improves real-time system responsiveness |
| Non-Volatile Block Protection Lock-Down | One-time programmable bits permanently prevent modification of write-lock status for critical parameter blocks - enhances field firmware security |
| Deep Power-Down Mode | 15 µA standby current - extends battery life in portable and IoT endpoint applications |
Applications
| Secure Boot Storage | Firmware Update Buffer |
|---|---|
Use Scenario: Storing immutable bootloader code and cryptographic keys in embedded microcontrollers requiring tamper-resistant startup. IC Role / Device Role / Timing Role: Non-volatile code execution memory with hardware write-protection and OTP Security ID for root-of-trust validation. Use Value: Prevents unauthorized modification of boot code via permanent lock-down of top 8 KByte parameter blocks and factory-unique 64-bit ID verification. | Use Scenario: Holding staged firmware images during over-the-air (OTA) updates in connected industrial gateways. IC Role / Device Role / Timing Role: High-speed, reliable data buffer supporting concurrent read (active firmware) and write (new image) via write-suspend. Use Value: Enables zero-downtime updates using 256-byte page programming and 18 ms sector erase - minimizes system unavailability window. |
| Configuration Parameter Store | Real-Time OS Kernel Image |
Use Scenario: Retaining calibrated sensor offsets, network credentials, and device-specific settings across power cycles in medical diagnostics equipment. IC Role / Device Role / Timing Role: Secure, long-retention parameter memory with individual 8 KByte block read/write protection. Use Value: Ensures regulatory compliance by preventing accidental overwrite of calibration data via read-lock and permanent lock-down of bottom parameter blocks. | Use Scenario: Hosting relocatable RTOS kernel binaries in resource-constrained edge AI controllers with deterministic boot timing. IC Role / Device Role / Timing Role: Low-latency instruction fetch memory supporting high-speed SQI burst reads at 104 MHz. Use Value: Reduces boot time by 3.2× versus standard SPI through continuous linear burst mode - meets <500 ms cold-start requirements. |
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 W25Q16JVSIQ | 16 Mbit SPI-only (no SQI); 133 MHz max; 100K endurance; no OTP Security ID | Lacks quad I/O acceleration and hardware-secured identity - suitable only where SQI bandwidth or device authentication is unnecessary | Select when cost sensitivity outweighs performance/security needs and host lacks SQI controller support |
| Cypress S25FL116K0XMFI011 | 16 Mbit SPI+Dual/Quad; 80 MHz max; 100K endurance; no factory-unique ID or nVWLDR | Supports x4 mode but lacks OTP Security ID and non-volatile lock-down - weaker for secure boot implementations | Choose when legacy Cypress ecosystem integration is prioritized over Microchip's SQI optimization and security features |
Compared with SST26VF016BA-104I/SN, W25Q16JVSIQ offers higher clock speed but no SQI or Security ID, limiting its use in secure, high-throughput designs; S25FL116K0XMFI011 provides quad mode compatibility but omits factory-programmed uniqueness and permanent lock-down, reducing assurance in safety-critical firmware storage.
Availability
SST26VF016BA-104I/SN is available at Aetrix Electronics and suitable for industrial control HMI panels, medical diagnostic firmware storage, and automotive telematics module boot memory requiring stable component supply and long-term lifecycle support.
Supply support for SST26VF016BA-104I/SN 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 manufacturer specializing in microcontrollers, analog components, and memory solutions for embedded systems.
The SST26VF016BA-104I/SN belongs to Microchip's Serial Quad I/O™ (SQI™) flash family, engineered to replace legacy SPI flash in bandwidth-constrained, security-aware applications such as secure boot, firmware updates, and configuration storage.
FAQ
What voltage range does the SST26VF016BA-104I/SN support, and how does it affect maximum clock speed?
The SST26VF016BA-104I/SN operates across 2.3–3.6 V. At 2.7–3.6 V, it achieves 104 MHz maximum clock frequency; at 2.3–3.6 V, max speed drops to 80 MHz. This dual-voltage support enables direct integration with both 2.5 V and 3.3 V host systems without level-shifting. The SST26VF016BA-104I/SN datasheet specifies these limits in Section 1.0 and Table 5-1, confirming that timing parameters scale accordingly.
Does the SST26VF016BA-104I/SN support true quad I/O mode, and what configuration is required?
Yes, the SST26VF016BA-104I/SN supports true quad I/O (SQI) mode using SIO[3:0] pins. To enable it, the host must first set the IOC bit (Bit 1) in the Configuration Register via RDCR/WRCR commands, then issue the EQIO (38H) command. The SST26VF016BA-104I/SN remains in SPI mode by default after power-up; SQI mode is not automatic. Pin functions change only after successful IOC and EQIO execution.
How is hardware write protection implemented on the SST26VF016BA-104I/SN, and what registers control it?
Hardware write protection on the SST26VF016BA-104I/SN uses the WP# pin in conjunction with the WPEN (non-volatile) and IOC bits in the Configuration Register. When IOC = 0 and WPEN = 1, pulling WP# low disables writes to the Block-Protection and Configuration Registers. The SST26VF016BA-104I/SN defaults to WPEN = 0 at power-up, so WP# is inactive until explicitly enabled - preventing accidental lockout during board bring-up.
What is the purpose and structure of the Security ID feature in the SST26VF016BA-104I/SN?
The SST26VF016BA-104I/SN includes a 2 KByte Security ID space: 64 bits factory-programmed with a unique, unchangeable identifier, plus a user-programmable area. It supports PSID (A5H) and LSID (85H) commands. Once locked via LSID, the entire Security ID space becomes read-only. The SST26VF016BA-104I/SN uses this for device authentication, secure boot binding, and anti-cloning - critical in regulated medical and industrial deployments.
Can the SST26VF016BA-104I/SN suspend an ongoing erase or program operation, and how is it managed?
Yes, the SST26VF016BA-104I/SN supports write-suspend via WRSU (B0H) command. During active erase or program, issuing WRSU pauses the operation, allowing immediate read access to other memory regions. Resume is triggered by WRRE (30H). Status bits WSE and WSP in the Status Register indicate suspension state. This capability is essential for real-time systems where firmware updates must not block critical sensor reads - a documented function of the SST26VF016BA-104I/SN per Section 4.0.
SST26VF016BA-104I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M 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-SOIC
SST26VF016BA-104I/SN FAQ
1.How can I place an order for SST26VF016BA-104I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF016BA-104I/SN 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 SST26VF016BA-104I/SN reliable?
The price and inventory of SST26VF016BA-104I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF016BA-104I/SN is usually 5 days.
3.What payment methods are accepted for SST26VF016BA-104I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF016BA-104I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF016BA-104I/SN?
SST26VF016BA-104I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF016BA-104I/SN 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 SST26VF016BA-104I/SN?
For technical support, including SST26VF016BA-104I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF016BA-104I/SN requirements.
6.How does Aetrix verify that SST26VF016BA-104I/SN is sourced from the original manufacturer or authorized distributors?
All SST26VF016BA-104I/SN 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 SST26VF016BA-104I/SN meets industry standards.
7.What is the process for return or replacement of SST26VF016BA-104I/SN?
All SST26VF016BA-104I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF016BA-104I/SN, 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 SST26VF016BA-104I/SN part is unused and in its original packaging.
Return procedure for SST26VF016BA-104I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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