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Microchip Technology SST38VF6401-90-5I-B3KE-T
- Part No.:
- SST38VF6401-90-5I-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6401-90-5I-B3KE-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,686
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Product details
Overview
SST38VF6401-90-5I-B3KE-T from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, designed for nonvolatile program/data storage in embedded systems. It operates from a single 2.7–3.6 V supply, delivers 90 ns read access time, supports 100,000 program/erase cycles, and retains data for >100 years. It is used in firmware storage for industrial controllers requiring field-upgradable code.
For engineers reviewing the SST38VF6401-90-5I-B3KE-T datasheet, SST38VF6401-90-5I-B3KE-T pinout, SST38VF6401-90-5I-B3KE-T application, or SST38VF6401-90-5I-B3KE-T equivalent, key selection considerations include boot-block protection configuration, TSOP-48 package compatibility, x16 parallel interface timing, and Write-Buffer Programming support for high-throughput firmware updates.
Technical Context
The SST38VF6401-90-5I-B3KE-T implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of wear level. Its JEDEC-standard x16 parallel interface uses latched address/data with CE#, OE#, and WE# control signals, and supports both standard Word-Program (7 µs typical) and accelerated Write-Buffer Programming (1.75 µs/word typical, 16-word buffer).
It features hardware-based protection including WP#-controlled boot-block lock, software-configurable individual block protection, and volatile/non-volatile block locking. End-of-operation detection is provided via RY/BY# output, DQ6 toggle bit, and DQ7 data# polling - all compliant with CFI and JEDEC pinout standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware or configuration data |
| Read Access Time | 90 ns - defines maximum clock-to-data delay in standard read mode for synchronous bus interfacing |
| Page Read Time | 25 ns per word - enables burst reads of up to 4 words within same page for faster sequential access |
| Word-Program Time | 7 µs typical - determines minimum write cycle duration for single-word updates without buffering |
| Write-Buffer Capacity | 16-word buffer - allows grouped programming with 1.75 µs/word effective rate, reducing host overhead |
| Endurance & Retention | 100,000 cycles / >100 years - guarantees long-term reliability in infrequently updated but mission-critical storage |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic systems and tolerant of brown-out conditions down to 2.7 V |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), standard JEDEC MO-141AC, 12 mm × 20 mm body, 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A12 select sector during erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; outputs tri-stated when CE# or OE# is high; latched on write |
| CE# | Chip Enable | Active-low chip select; device enters standby (3 µA) when high; required low for all operations |
| OE# | Output Enable | Active-low output gate; controls data bus drive; high = high-impedance state |
| WE# | Write Enable | Active-low write strobe; latches address/data edges and initiates internal program/erase sequences |
| WP# | Write Protect | Active-low hardware lock for top/bottom boot block (B0 for SST38VF6401); prevents accidental erase/write |
| RST# | Reset | Active-low hardware reset; forces device into read mode and aborts ongoing operations |
| RY/BY# | Ready/Busy | Open-drain status output; low = active program/erase; used for hardware flow control |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; decoupling required per JEDEC layout guidelines |
| VSS | Ground | Reference ground for all signals; two dedicated pins for noise reduction in high-speed operation |
| NC | No Connection | Unbonded pin; must be left floating or tied to VSS per PCB design rules |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide injector ensures stable erase/program times across full lifetime, eliminating de-rating in system firmware |
| Erase-Suspend/Resume | Allows real-time read/program of unprotected blocks during active sector/block erase - critical for multitasking embedded OS environments |
| 128-bit Unique ID | Factory-programmed serial number enables secure device authentication and firmware binding in certified industrial systems |
| Security-ID OTP Area | 256-word one-time-programmable space for cryptographic keys or calibration data - physically irreversible and immune to software overwrite |
| Auto Low Power Mode | Automatically transitions from 4 mA active read to 3 µA standby after valid access - reduces average power in polling-based firmware loaders |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware boot-block protection to prevent corruption during power loss during update. Use Value: 90 ns read access ensures deterministic scan-cycle timing; 100,000 endurance supports decades of field updates without replacement. |
Use Scenario: Holding calibrated sensor offsets, user preferences, and regulatory-compliant device settings in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store with OTP Security-ID for HIPAA/FDA audit traceability. Use Value: >100-year data retention meets medical device shelf-life requirements; WP# pin enables hardware-enforced lockdown post-calibration. |
| Telecom Base Station Boot ROM | Automotive Infotainment System Code Storage |
|
Use Scenario: Hosting bootloader and FPGA configuration bitstreams in outdoor wireless infrastructure units operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Industrial-grade parallel flash with RY/BY# handshake for reliable cold-boot sequencing under voltage transients. Use Value: 2.7–3.6 V operation tolerates wide input rail variation; TSOP-48 package supports conformal coating for harsh environmental sealing. |
Use Scenario: Storing navigation map updates, UI assets, and safety-critical firmware patches in head-unit ECUs with ASIL-B compliance needs. IC Role / Device Role / Timing Role: Dual-mode flash supporting both fast Page Read (25 ns) for UI rendering and Write-Buffer Programming for silent OTA updates. Use Value: 16-word write buffer cuts OTA patch apply time by >80% vs. word-by-word programming; CFI compliance simplifies driver porting across MCU platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401C-90-5I-B3KE-T | Same density and pinout, but uses legacy SST39 architecture (not Advanced MPF+); lacks Write-Buffer Programming and Erase-Suspend | Lower-cost option where firmware update throughput and background erase are not required | Select only if legacy driver support exists and advanced features are unused - no performance or reliability benefit over SST38VF6401 |
| MX29LV640ETTI-90G | 64 Mbit x16 parallel NOR flash in 48-TSOP; 90 ns access, but no Write-Buffer, no 128-bit UID, and only 10K endurance rating | Suitable for cost-sensitive consumer electronics with infrequent updates and shorter product lifecycle | Choose when BOM cost is primary constraint and >100K endurance or security features are unnecessary |
Compared with SST38VF6401-90-5I-B3KE-T, the SST39VF6401C variant omits SuperFlash benefits like fixed timing and erase-suspend, while MX29LV640ETTI trades endurance and security for lower unit cost - making SST38VF6401 the only choice for industrial firmware requiring guaranteed 100K cycles and field-safe update mechanisms.
Availability
SST38VF6401-90-5I-B3KE-T is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, telecom base stations, and automotive infotainment systems requiring stable component supply across extended production lifecycles.
Supply support for SST38VF6401-90-5I-B3KE-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 leading provider of microcontroller, analog, FPGA, and memory solutions, with deep expertise in embedded control and nonvolatile storage technologies.
The SST38VF6401-90-5I-B3KE-T belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) product line, engineered specifically for high-reliability, field-upgradable firmware storage in industrial, medical, and communications equipment.
FAQ
What is the difference between SST38VF6401-90-5I-B3KE-T and SST38VF6402?
The SST38VF6401-90-5I-B3KE-T features a bottom boot-block configuration (B0 protected), whereas SST38VF6402 uses a top boot-block (B127 protected). Both share identical timing, endurance, and command sets, but memory map protection boundaries differ - requiring matching bootloader placement in firmware. The SST38VF6401-90-5I-B3KE-T is not interchangeable with SST38VF6402 without software revision.
Does SST38VF6401-90-5I-B3KE-T support 3.3 V-only operation?
Yes, SST38VF6401-90-5I-B3KE-T is fully specified for 2.7–3.6 V operation, with all AC/DC parameters guaranteed across this range. At 3.3 V nominal, it delivers 90 ns read access, 7 µs word-program, and 3 µA standby current - making it ideal for standard 3.3 V embedded systems without level-shifting.
How does the Write-Buffer Programming feature work in SST38VF6401-90-5I-B3KE-T?
SST38VF6401-90-5I-B3KE-T implements a 16-word write buffer that accepts up to 16 words in rapid succession using the Write-to-Buffer command, then commits them to flash in a single Program Buffer-to-Flash operation. This reduces effective programming time to 1.75 µs per word and minimizes host CPU intervention - critical for efficient firmware patching.
Is SST38VF6401-90-5I-B3KE-T RoHS compliant and halogen-free?
Yes, SST38VF6401-90-5I-B3KE-T is RoHS compliant per Directive 2011/65/EU and meets Microchip's halogen-free standard (≤900 ppm bromine, ≤900 ppm chlorine). The TSOP-48 package uses matte tin lead finish and green molding compound, verified in DS20005015D Rev D.
Can SST38VF6401-90-5I-B3KE-T be used with an 8-bit data bus?
No, SST38VF6401-90-5I-B3KE-T is strictly a 16-bit (x16) device with DQ0–DQ15 I/O pins and 22-bit addressing (A0–A21). It does not support x8 mode or data bus multiplexing. Systems requiring 8-bit interfaces must use a discrete bus-width adapter or select an x8-part variant such as SST39VF3201.
SST38VF6401-90-5I-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 64Mbit
- Memory Organization:
- 4M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- 90 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA (6x8)
SST38VF6401-90-5I-B3KE-T FAQ
1.How can I place an order for SST38VF6401-90-5I-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6401-90-5I-B3KE-T 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 SST38VF6401-90-5I-B3KE-T reliable?
The price and inventory of SST38VF6401-90-5I-B3KE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6401-90-5I-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST38VF6401-90-5I-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6401-90-5I-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6401-90-5I-B3KE-T?
SST38VF6401-90-5I-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6401-90-5I-B3KE-T 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 SST38VF6401-90-5I-B3KE-T?
For technical support, including SST38VF6401-90-5I-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6401-90-5I-B3KE-T requirements.
6.How does Aetrix verify that SST38VF6401-90-5I-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST38VF6401-90-5I-B3KE-T 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 SST38VF6401-90-5I-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST38VF6401-90-5I-B3KE-T?
All SST38VF6401-90-5I-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6401-90-5I-B3KE-T, 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 SST38VF6401-90-5I-B3KE-T part is unused and in its original packaging.
Return procedure for SST38VF6401-90-5I-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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