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Microchip Technology SST26VF064BT-104I/MN
- Part No.:
- SST26VF064BT-104I/MN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF064BT-104I/MN.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,061
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Product details
Overview
SST26VF064BT-104I/MN from Microchip Technology is a 64-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for high-speed, low-power embedded code storage and data logging. It operates at 104 MHz (2.7V–3.6V), supports x1/x2/x4 SPI and full SQI protocols, features uniform 4-Kbyte sectors and 64-Kbyte blocks, and is rated for industrial temperature (−40°C to +85°C) in an 8-contact WDFN (6 mm × 5 mm) package.
For engineers reviewing the SST26VF064BT-104I/MN datasheet, SST26VF064BT-104I/MN pinout, SST26VF064BT-104I/MN application, or SST26VF064BT-104I/MN equivalent, key selection considerations include quad-I/O throughput, write-suspend capability, OTP Security ID, flexible block protection with lock-down, and compatibility with legacy SPI host controllers while enabling bandwidth scaling via SQI mode.
Technical Context
The SST26VF064BT-104I/MN implements Microchip's proprietary SuperFlash® technology with split-gate cells, enabling 100,000 program/erase cycles and >100-year data retention. Its dual-mode interface supports both standard SPI (Mode 0/3, SI/SO pins) and 4-bit multiplexed SQI (SIO[3:0]) operation - the latter quadrupling effective throughput at identical clock frequency.
Hardware and software protection are tightly integrated: WP# and HOLD# pins function in SPI mode only; the Configuration register (IOC, WPEN, BPNV bits) controls I/O mapping and write-enable behavior; and nonvolatile lock-down registers (nVWLDR) permanently secure individual 8-Kbyte, 32-Kbyte, and 64-Kbyte blocks against future erase/program operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MByte) organized as 126 × 64-Kbyte blocks + overlay blocks |
| Max Clock Frequency | 104 MHz at 2.7V–3.6V; enables 416 MB/s peak SQI read bandwidth |
| Erase Performance | 18 ms typical sector/64-Kbyte block erase; 35 ms typical chip erase |
| Write Endurance | 100,000 program/erase cycles per sector - validated for firmware update logging |
| Data Retention | Greater than 100 years at 85°C - suitable for unattended industrial deployments |
| Supply Voltage | 2.3V–3.6V single supply - supports battery-backed and wide-input industrial rails |
| Operating Temp | −40°C to +85°C (Industrial grade) - qualified per AEC-Q100 Grade 3 |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CE# | Chip Enable | Active-low enable for all serial commands; must remain low during full command/data sequence |
| 2: SO/SIO1 | Serial Output / Quad I/O 1 | Default SPI output (SO); becomes bidirectional SIO1 in SQI mode after IOC=1 |
| 3: WP#/SIO2 | Write Protect / Quad I/O 2 | Hardware write-protection input in SPI mode; becomes SIO2 in SQI mode when IOC=1 |
| 4: VSS | Ground | Reference return path for all I/O and core logic; requires low-impedance PCB connection |
| 5: VDD | Power Supply | 2.3V–3.6V main supply; decoupling capacitor (0.1 µF) required adjacent to pin |
| 6: HOLD#/SIO3 | Hold Input / Quad I/O 3 | Pauses ongoing SPI transfers without resetting state; disabled in SQI mode |
| 7: SCK | Serial Clock | Rising edge latches input; falling edge clocks out data; supports Mode 0 (idle low) and Mode 3 (idle high) |
| 8: SI/SIO0 | Serial Input / Quad I/O 0 | Default SPI input (SI); becomes bidirectional SIO0 in SQI mode after IOC=1 |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4-bit multiplexed command/address/data transfer - doubles bandwidth vs. dual-I/O and quadruples vs. standard SPI at same clock rate |
| Write Suspend | Allows interruption of active program/erase to service urgent reads from other blocks - critical for real-time firmware execution |
| OTP Security ID | 2-Kbyte space with factory-programmed 64-bit unique ID + user-programmable area - supports device authentication and secure boot binding |
| Flexible Block Protection | Per-block write/read lock with volatile (LBPR) and nonvolatile (nVWLDR) lock-down - prevents unauthorized firmware modification in field-deployed units |
| Burst Read Modes | Continuous linear and wrap-around bursts (8/16/32/64-byte) - optimizes sequential code fetch and streaming data access |
Applications
| Boot Code Storage | Firmware Over-the-Air (OTA) |
|---|---|
Use Scenario: Storing primary bootloader and application firmware in microcontroller-based edge nodes with no external RAM. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast random-access read and deterministic 104 MHz SQI fetch timing. Use Value: Enables sub-100 ms cold boot via continuous burst reads; OTP Security ID binds firmware image to hardware identity. | Use Scenario: Receiving and validating encrypted firmware updates in connected industrial gateways. IC Role / Device Role / Timing Role: Dual-bank capable storage for atomic update swapping; write-suspend allows concurrent status polling during flash programming. Use Value: Guarantees update integrity with block-level lock-down; 18 ms sector erase enables rapid patch deployment without system downtime. |
| Data Logging | Secure Configuration Storage |
Use Scenario: Recording sensor telemetry in automotive telematics units operating across −40°C to +85°C. IC Role / Device Role / Timing Role: High-endurance data buffer supporting 100K+ write cycles; low 15 µA standby current extends battery life. Use Value: Maintains >100-year data retention at elevated temperature; uniform 4-Kbyte sectors simplify wear-leveling algorithm implementation. | Use Scenario: Storing calibrated sensor offsets, cryptographic keys, and regulatory compliance parameters in medical devices. IC Role / Device Role / Timing Role: Tamper-resistant configuration vault using read/write lock on top/bottom 8-Kbyte parameter blocks. Use Value: Prevents runtime key exposure via read-lock; permanent nVWLDR lock-down ensures keys survive reprogramming cycles. |
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 W25Q64JVSSIQ | 64 Mbit, 133 MHz max, standard SPI-only (no native SQI), 4-Kbyte sectors, 100K endurance | Lacks quad-I/O interface and write-suspend; requires host-side dual-I/O or QPI emulation for bandwidth scaling | Preferred where SQI is unused and cost-per-Mbit is prioritized over advanced features |
| Cypress S25FL164K0XMFI010 | 64 Mbit, 85 MHz max, HyperBus interface (not SPI/SQI compatible), 4-Kbyte sectors, 100K endurance | Requires HyperBus controller; incompatible pinout and command set; higher latency for small reads | Only viable in new designs targeting Cypress PSoC or Traveo II platforms with HyperBus support |
Compared with SST26VF064BT-104I/MN, W25Q64JVSSIQ offers lower cost but forfeits SQI bandwidth and write-suspend; S25FL164K0XMFI010 delivers deterministic HyperBus timing but eliminates SPI/SQI interoperability and increases BOM complexity.
Availability
SST26VF064BT-104I/MN is available at Aetrix Electronics and suitable for industrial control systems, automotive telematics modules, and medical data recorders requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 3 qualification.
Supply support for SST26VF064BT-104I/MN 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 microcontrollers, analog components, and Flash memory solutions, serving industrial, automotive, and communications markets with vertically integrated silicon and software.
The SST26VF064BT-104I/MN belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for high-reliability embedded systems needing scalable bandwidth, robust security, and extended temperature operation without sacrificing pin count or power efficiency.
FAQ
What is the difference between SST26VF064BT-104I/MN and SST26VF064BA?
The SST26VF064BT-104I/MN is the "B" variant: at power-up, WP# and HOLD# pins are enabled (IOC = 0), and SIO2/SIO3 are disabled - defaulting to SPI mode. The "BA" variant powers up with IOC = 1, enabling SIO2/SIO3 and disabling WP#/HOLD# for immediate SQI operation. Both share identical density, timing, and packaging; the distinction lies solely in factory-configured I/O pin mapping and reset behavior. SST26VF064BT-104I/MN is optimized for backward-compatible SPI integration with optional SQI upgrade via software configuration.
Does SST26VF064BT-104I/MN support true quad-SPI (QSPI) protocol?
No - SST26VF064BT-104I/MN implements Microchip's proprietary Serial Quad I/O™ (SQI™) interface, not JEDEC-standard Quad-SPI. While both use four I/O lines, SQI employs a six-wire interface (SCK, CE#, and SIO[3:0]) with distinct command encoding and timing. It is not electrically or logically compatible with QSPI controllers. SST26VF064BT-104I/MN does support standard SPI (x1/x2 modes) and its own SQI protocol; QSPI host hardware will not operate with SST26VF064BT-104I/MN without protocol translation.
Can SST26VF064BT-104I/MN be used in automotive applications?
Yes - SST26VF064BT-104I/MN is qualified to AEC-Q100 Grade 3 (−40°C to +85°C) and supports automotive use cases including telematics, body control modules, and ADAS log storage. Its 100,000-cycle endurance, >100-year data retention, and robust block protection with nonvolatile lock-down meet functional safety requirements for firmware integrity. However, for Grade 2 (−40°C to +105°C) or safety-critical ASIL-B/C applications, validation against specific system-level FMEDA and diagnostic coverage targets remains the responsibility of the end designer. SST26VF064BT-104I/MN provides the foundational reliability, but system-level certification is design-dependent.
How is the Security ID implemented in SST26VF064BT-104I/MN?
SST26VF064BT-104I/MN includes a 2-Kbyte Security ID (Sec ID) space: the first 64 bits are factory-programmed, unique, and immutable; the remaining 2048 − 8 = 2040 bytes are user-programmable. Access uses dedicated PSID (Program Security ID) and LSID (Lockout Security ID) commands. Once LSID executes, the entire Sec ID space becomes read-only - the SEC bit in STATUS register sets permanently to '1'. Neither factory nor user areas can be erased. This enables hardware-rooted device identity binding for secure boot and anti-cloning, with SST26VF064BT-104I/MN providing guaranteed uniqueness and irreversible lockdown.
What package type does SST26VF064BT-104I/MN use, and is it lead-free?
SST26VF064BT-104I/MN uses an 8-contact WDFN package measuring 6 mm × 5 mm, with exposed pad for thermal dissipation. It is fully RoHS-compliant and lead-free, meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) requirements. The package supports standard reflow profiles and is compatible with automated SMT assembly. Pinout matches the industry-standard 8-pin SOIC footprint in signal assignment (though physical dimensions differ), easing layout migration from legacy SPI flash. SST26VF064BT-104I/MN's compact WDFN form factor reduces board area by ~40% versus equivalent SOIC packages.
SST26VF064BT-104I/MN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 64Mbit
- Memory Organization:
- 8M 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-WDFN (6x8)
SST26VF064BT-104I/MN FAQ
1.How can I place an order for SST26VF064BT-104I/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF064BT-104I/MN 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 SST26VF064BT-104I/MN reliable?
The price and inventory of SST26VF064BT-104I/MN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF064BT-104I/MN is usually 5 days.
3.What payment methods are accepted for SST26VF064BT-104I/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF064BT-104I/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF064BT-104I/MN?
SST26VF064BT-104I/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF064BT-104I/MN 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 SST26VF064BT-104I/MN?
For technical support, including SST26VF064BT-104I/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF064BT-104I/MN requirements.
6.How does Aetrix verify that SST26VF064BT-104I/MN is sourced from the original manufacturer or authorized distributors?
All SST26VF064BT-104I/MN 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 SST26VF064BT-104I/MN meets industry standards.
7.What is the process for return or replacement of SST26VF064BT-104I/MN?
All SST26VF064BT-104I/MN units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF064BT-104I/MN, 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 SST26VF064BT-104I/MN part is unused and in its original packaging.
Return procedure for SST26VF064BT-104I/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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