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Microchip Technology SST38VF6401-90-5C-EKE
- Part No.:
- SST38VF6401-90-5C-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6401-90-5C-EKE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:190
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Product details
Overview
SST38VF6401-90-5C-EKE from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, organized as 4M words × 16-bit data bus, operating from 2.7–3.6 V single supply. It delivers 90 ns read access time, 25 ns page read access, and supports hardware boot block protection with WP# pin for embedded firmware storage in industrial controllers and network edge devices.
For engineers reviewing the SST38VF6401-90-5C-EKE datasheet, SST38VF6401-90-5C-EKE pinout, SST38VF6401-90-5C-EKE application, or SST38VF6401-90-5C-EKE equivalent, key selection criteria include its 48-lead TSOP package, JEDEC-compliant x16 interface, 100,000-cycle endurance, 128-bit unique ID, and support for Write-Buffer Programming at 1.75 µs/word - critical for fast firmware updates in resource-constrained systems.
Technical Context
The SST38VF6401-90-5C-EKE implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its command-set architecture conforms to JEDEC standard pinouts and CFI, supporting software-controlled sector/block/chip erase and Erase-Suspend/-Resume functionality.
It features latched address/data I/O, RY/BY# status output, hardware reset (RST#), and dual protection schemes: hardware WP#-enabled boot block lock and software-configurable individual 32 KWord block protection. The device uses Toggle Bit (DQ6/DQ2) and Data# Polling (DQ7) for end-of-write detection without external timing dependencies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware, configuration, or boot code |
| Read Access Time | 90 ns - determines minimum CPU wait-state insertion for synchronous bus interfacing |
| Page Read Time | 25 ns per word (4-word buffer) - enables burst reads at up to 40 MB/s effective throughput |
| Endurance | 100,000 program/erase cycles - ensures long-term field reliability in update-intensive applications |
| Data Retention | >100 years - guarantees data integrity across product lifecycle without refresh |
| Supply Voltage | 2.7–3.6 V - compatible with modern low-voltage 3.3 V logic domains and battery-backed systems |
| Active Current | 4 mA typical at 5 MHz - defines power budget for active read operations in portable designs |
| Standby Current | 3 µA typical - enables ultra-low-power sleep modes in always-on edge devices |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, surface-mount, standard JEDEC MO-142AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (AMS = A21) selecting 4M × 16 locations; A21–A12 select sector during erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with tri-state outputs controlled by OE# and CE# |
| CE# | Chip Enable | Active-low chip select; device enters standby when high, reducing current to 3 µA |
| OE# | Output Enable | Active-low output gate; controls data bus visibility without affecting internal state |
| WE# | Write Enable | Active-low control for latching addresses/data during program/erase command sequences |
| WP# | Write Protect | Hardware boot block lock; grounded to prevent accidental erase/program of top/bottom 8 KWord region |
| RST# | Reset | Active-low hardware reset returning device to read mode; required after power-up or error recovery |
| RY/BY# | Ready/Busy | Open-drain status indicator: low during internal program/erase, high when ready for next command |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; no separate VCCIO required |
| VSS | Ground | Primary reference for all signals and internal circuitry |
| NC | No Connection | Unbonded pin; must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| Write-Buffer Programming | 16-word buffer enables 1.75 µs/word effective programming - cuts full-page write time by >85% vs. single-word mode |
| Erase-Suspend/-Resume | Allows read/program of unprotected blocks during active erase - essential for real-time firmware patching |
| 128-bit Unique ID | Factory-programmed serial number enabling secure device authentication and license binding |
| Security-ID OTP Area | 256-word user one-time-programmable space for keys, calibration data, or secure boot parameters |
| Auto Low Power Mode | Automatically transitions from 4 mA active read to 3 µA standby after valid access - eliminates software power management overhead |
| JEDEC & CFI Compliance | Guarantees interoperability with standard flash controllers and BIOS/UEFI firmware stacks without vendor-specific drivers |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation environments with ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Nonvolatile boot and application code storage with hardware write protection on boot sectors to prevent corruption during brown-out events. Use Value: 100,000-cycle endurance and >100-year data retention ensure firmware integrity over 15+ year equipment lifespans without maintenance. |
Use Scenario: Holding bootloader, OS kernel, and configuration tables in enterprise-grade Ethernet routers requiring field-upgradable firmware via TFTP or HTTPS. IC Role / Device Role / Timing Role: x16 parallel interface flash memory mapped into CPU address space for direct execution (XIP) and fast page-read boot sequences. Use Value: 25 ns page read access enables sub-100 ms boot time; Write-Buffer Programming reduces OTA update duration by 4× compared to legacy NOR flash. |
| Medical Device Configuration Storage | Automotive Infotainment System Code Storage |
Use Scenario: Retaining calibrated sensor offsets, user preferences, and regulatory compliance logs in Class II medical diagnostic instruments subject to IEC 62304 requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration memory with 128-bit UID and OTP Security-ID for audit-trail binding and anti-cloning. Use Value: Hardware WP# and software block locking prevent unauthorized reconfiguration; RoHS compliance meets global medical regulatory standards. |
Use Scenario: Storing infotainment OS, UI assets, and navigation map data in automotive head units operating across -40°C to +105°C junction temperature range. IC Role / Device Role / Timing Role: High-reliability flash memory with SuperFlash technology delivering stable performance under thermal cycling and EMI stress. Use Value: Fixed 18 ms sector/block erase time - unaffected by accumulated cycles - simplifies flash wear-leveling firmware design and improves update predictability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-90-5C-EKE | Same density, 90 ns access, but uses newer SuperFlash Gen2 process; improved 200K-cycle endurance and lower 2.5 µA standby current | Better suited for new designs targeting extended lifecycle or ultra-low-power sleep modes | Select if upgrading for higher endurance or lower quiescent current; pinout and command set are identical |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns, but requires 3.0–3.6 V only; lacks Write-Buffer Programming and Erase-Suspend; no 128-bit UID | Limited to simpler boot applications without runtime firmware patching or secure identity needs | Choose only for cost-sensitive legacy replacements where advanced features are unused |
Compared with SST38VF6401-90-5C-EKE, the SST39VF6401B offers measurable lifecycle and power advantages with zero hardware change, while MX29LV640ETTI-90G trades feature depth for lower unit cost in static boot-only roles.
Availability
SST38VF6401-90-5C-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot memory, medical device configuration storage, and automotive infotainment system code storage requiring stable component supply across multi-year production programs.
Supply support for SST38VF6401-90-5C-EKE 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, with broad industrial, automotive, and communications market reach.
The SST38VF6401-90-5C-EKE belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) family, designed specifically for reliable, high-speed parallel NOR flash replacement in embedded systems requiring robust firmware storage and field-upgradability.
FAQ
What is the operating voltage range for the SST38VF6401-90-5C-EKE?
The SST38VF6401-90-5C-EKE operates from a single 2.7 V to 3.6 V supply. This wide range supports compatibility with both 3.0 V and 3.3 V system rails, and accommodates voltage droop during transient load conditions without requiring external regulators. All specifications - including 90 ns read access and 4 mA active current - are guaranteed across this full voltage window.
Does the SST38VF6401-90-5C-EKE support hardware write protection?
Yes, the SST38VF6401-90-5C-EKE includes dedicated hardware write protection via the WP# pin. When WP# is driven low, it permanently locks the top or bottom 8 KWord boot block against program and erase operations - a critical safeguard for bootloader integrity in industrial and medical systems. This protection works independently of software commands and remains active even during power cycling.
How does the Write-Buffer Programming feature improve performance in the SST38VF6401-90-5C-EKE?
The SST38VF6401-90-5C-EKE supports Write-Buffer Programming with a 16-word buffer, achieving 1.75 µs per word versus 7 µs in standard word-program mode. This reduces full-buffer programming time from 112 µs to 28 µs - a 4× speedup. The feature is especially valuable during firmware updates, where sequential writes dominate, and directly lowers host CPU wait time and system-level update latency.
What package type is used for the SST38VF6401-90-5C-EKE?
The SST38VF6401-90-5C-EKE is supplied in a 48-lead TSOP (Thin Small Outline Package) with standard JEDEC MO-142AC footprint. It is RoHS-compliant, surface-mount, and pin-compatible with other members of the SST38VF64xx family. The package supports reflow soldering per J-STD-020 and is optimized for high-density PCB layouts in space-constrained embedded applications.
Can the SST38VF6401-90-5C-EKE be used in automotive applications?
The SST38VF6401-90-5C-EKE is qualified for industrial temperature range (–40°C to +85°C) and meets RoHS requirements, making it suitable for under-hood-adjacent or cabin-mounted automotive infotainment and telematics modules. While not AEC-Q100 qualified, its SuperFlash reliability (100,000 cycles, >100-year retention) and Erase-Suspend capability support robust operation in thermally stressed automotive environments when validated per system-level requirements.
SST38VF6401-90-5C-EKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
SST38VF6401-90-5C-EKE FAQ
1.How can I place an order for SST38VF6401-90-5C-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6401-90-5C-EKE 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 SST38VF6401-90-5C-EKE reliable?
The price and inventory of SST38VF6401-90-5C-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6401-90-5C-EKE is usually 5 days.
3.What payment methods are accepted for SST38VF6401-90-5C-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6401-90-5C-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6401-90-5C-EKE?
SST38VF6401-90-5C-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6401-90-5C-EKE 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 SST38VF6401-90-5C-EKE?
For technical support, including SST38VF6401-90-5C-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6401-90-5C-EKE requirements.
6.How does Aetrix verify that SST38VF6401-90-5C-EKE is sourced from the original manufacturer or authorized distributors?
All SST38VF6401-90-5C-EKE 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 SST38VF6401-90-5C-EKE meets industry standards.
7.What is the process for return or replacement of SST38VF6401-90-5C-EKE?
All SST38VF6401-90-5C-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6401-90-5C-EKE, 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 SST38VF6401-90-5C-EKE part is unused and in its original packaging.
Return procedure for SST38VF6401-90-5C-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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