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Microchip Technology SST38VF6401B-70-5I-EKE-T
- Part No.:
- SST38VF6401B-70-5I-EKE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6401B-70-5I-EKE-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,572
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Product details
Overview
SST38VF6401B-70-5I-EKE-T from Microchip Technology is a 64 Mbit (4M × 16) Advanced Multi-Purpose Flash Plus memory IC designed for embedded program/data storage in industrial and communications systems. It operates from a single 2.7–3.6 V supply, delivers 70 ns read access time, supports 100,000 program/erase cycles, and retains data for >100 years. Its boot-block protection, 128-bit unique ID, and hardware RST# pin enable secure, reliable firmware updates in space-constrained designs.
For engineers reviewing the SST38VF6401B-70-5I-EKE-T datasheet, SST38VF6401B-70-5I-EKE-T pinout, SST38VF6401B-70-5I-EKE-T application, or SST38VF6401B-70-5I-EKE-T equivalent, key selection considerations include its 48-lead TSOP package, x16 parallel interface, uniform 32 KWord block architecture with top-boot configuration, and support for Page Read (25 ns), Write Buffer Programming (1.75 µs/word), and Erase-Suspend/Resume.
Technical Context
The SST38VF6401B-70-5I-EKE-T implements SST's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of wear level. It uses JEDEC-standard x16 flash command sets and CFI compliance for interoperability with standard memory controllers.
Its dual-status detection-Data# Polling (DQ7) and Toggle Bits (DQ6/DQ2)-provides real-time write completion feedback without external timing dependencies. The device integrates hardware boot-block protection via WP#, RY/BY# ready/busy signaling, and a dedicated RST# pin to force read-mode recovery after power-up or fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), enabling 8 MB of nonvolatile storage for firmware or configuration data |
| Read Access Time | 70 ns (max), ensuring compatibility with high-speed microprocessor buses operating up to ~14 MHz |
| Page Read Speed | 25 ns per word (8-word page), reducing sequential read latency by >60% vs. standard random read |
| Write Buffer Size | 16-word buffer, allowing burst programming at 1.75 µs/word-up to 9× faster than single-word programming |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 25°C, supporting long-life industrial deployments |
| Supply Voltage | 2.7–3.6 V single supply, eliminating need for separate VPP or charge pumps and simplifying power design |
| Operating Temperature | –40°C to +85°C (Industrial grade), validated for use in extended-temperature embedded control environments |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), 12 mm × 20 mm body, surface-mount, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A15 select block during erase operations |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with internal latching; tri-stated when CE# or OE# is high |
| CE# | Chip Enable | Active-low chip select; device enters standby mode (5 µA) when high |
| OE# | Output Enable | Active-low output gate; controls data bus drive without affecting internal state |
| WE# | Write Enable | Active-low control for write command latching; rising edge initiates internal program/erase timing |
| WP# | Write Protect | Active-low hardware lock for top boot block (B0); prevents accidental erase/program during power transitions |
| RST# | Hardware Reset | Active-low pin forcing immediate return to read mode; required for deterministic recovery after brown-out |
| RY/BY# | Ready/Busy | Open-drain status indicator: low = active program/erase, high = ready for next command |
| VDD | Power Supply | 2.7–3.6 V core supply; no external VPP needed due to on-chip charge pump |
| VSS | Ground | Two dedicated ground pins (pins 23 and 47) for noise reduction and signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows interrupting block-erase to read/program other blocks-critical for real-time firmware update without system freeze |
| Auto Low Power Mode | Reduces active read current from 25 mA to 5 µA after valid access, cutting dynamic power by >99% during idle bursts |
| 128-bit Unique ID | Factory-programmed serial number enabling device-level traceability, secure boot binding, and license enforcement |
| Security-ID OTP Area | 248-word one-time-programmable region for storing cryptographic keys or calibration data with irreversible write lock |
| Uniform Block Protection | Hardware + software-controlled 32 KWord block locking (via WP#, VPB/NVPB, password) preventing unauthorized firmware modification |
Applications
| Industrial PLC Firmware Storage | Telecom Baseband Configuration |
|---|---|
|
Use Scenario: Storing field-upgradable firmware and parameter tables in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile program memory interfaced directly to ARM Cortex-M7 or SHARC DSP host processors via x16 parallel bus. Use Value: 70 ns read access ensures deterministic boot timing; 100K-cycle endurance supports >10 years of over-the-air updates without replacement. |
Use Scenario: Holding baseband processor configuration profiles (RF calibration, modulation schemes) in 4G/LTE small cell radios. IC Role / Device Role / Timing Role: Configuration memory mapped into DSP address space, accessed during power-on initialization and runtime reconfiguration. Use Value: Page Read (25 ns) accelerates profile loading; Erase-Suspend enables concurrent radio operation while updating calibration data. |
| Medical Imaging Boot ROM | Automotive ADAS Sensor Calibration |
|
Use Scenario: Secure boot image storage for FPGA-based medical ultrasound beamformers requiring FDA-compliant traceability. IC Role / Device Role / Timing Role: Primary boot ROM with hardware RST# and WP# ensuring fail-safe recovery and tamper-resistant firmware integrity. Use Value: 128-bit Unique ID binds firmware to hardware; >100-year data retention guarantees lifetime calibration validity without battery backup. |
Use Scenario: Storing sensor-specific calibration coefficients (camera, radar) in automotive ADAS ECUs subject to thermal cycling and vibration. IC Role / Device Role / Timing Role: Calibration data repository accessed by microcontroller during vehicle startup and periodic self-test routines. Use Value: Industrial temperature rating (–40°C to +85°C) and SuperFlash reliability ensure coefficient integrity across 15-year vehicle lifespan. |
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-70-5I-EKE-T | Same density, timing, and package-but uses older SST39 architecture without Erase-Suspend or Auto Low Power mode | Lacks real-time suspend capability and higher standby current (20 µA vs. 5 µA) | Select only if legacy design reuse requires identical command set without new feature adoption |
| MX29LV640EBTI-70G | 64 Mbit x16, 70 ns, 2.7–3.6 V, but uses Macronix's MX29LV architecture with different command sequences and no 128-bit ID | Requires firmware driver rewrite; lacks Security-ID OTP and uniform boot-block layout | Choose when cost sensitivity outweighs feature parity and long-term firmware maintainability |
Compared with SST38VF6401B-70-5I-EKE-T, SST39VF6401B-70-5I-EKE-T omits critical real-time features like Erase-Suspend, while MX29LV640EBTI-70G requires full software revalidation and forfeits hardware security primitives-making SST38VF6401B-70-5I-EKE-T the optimal choice for new designs demanding reliability, security, and field-upgrade agility.
Availability
SST38VF6401B-70-5I-EKE-T is available at Aetrix Electronics and suitable for industrial PLCs, telecom base stations, medical imaging systems, and automotive ADAS modules requiring stable component supply across multi-year production lifecycles.
Supply support for SST38VF6401B-70-5I-EKE-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 global provider of microcontrollers, analog, FPGA, and memory solutions, formed through the acquisition of Silicon Storage Technology (SST) in 2016.
The SST38VF6401B-70-5I-EKE-T belongs to the Advanced Multi-Purpose Flash Plus (MPF+) product line, engineered specifically for high-reliability, low-power, field-upgradable embedded systems where firmware integrity, long-term data retention, and real-time update flexibility are mandatory.
FAQ
What is the primary memory organization of the SST38VF6401B-70-5I-EKE-T?
The SST38VF6401B-70-5I-EKE-T is organized as 4M × 16, delivering 64 Mbit (8 MB) of nonvolatile storage in a uniform 32 KWord block structure. This x16 parallel interface enables direct connection to 16-bit microprocessor data buses without glue logic, and its top-boot configuration reserves Block B0 for secure bootloader code storage.
Does the SST38VF6401B-70-5I-EKE-T support hardware reset functionality?
Yes, the SST38VF6401B-70-5I-EKE-T includes a dedicated RST# pin that forces an immediate return to read mode upon assertion. This hardware reset is essential for deterministic recovery after power brown-out or watchdog timeout events, and it operates independently of internal state or ongoing erase/program operations.
How does the Write Buffer feature improve programming efficiency in the SST38VF6401B-70-5I-EKE-T?
The SST38VF6401B-70-5I-EKE-T implements a 16-word Write Buffer that reduces effective programming time to 1.75 µs per word-nearly 9× faster than single-word programming (7 µs). By loading up to 16 words before committing to flash, it minimizes bus arbitration overhead and enables burst firmware patching without CPU stalling.
What protection mechanisms prevent unintended writes to the SST38VF6401B-70-5I-EKE-T?
The SST38VF6401B-70-5I-EKE-T combines hardware and software protection: WP# physically locks the top boot block (B0); volatile/non-volatile block protection (VPB/NVPB) enables dynamic or permanent locking of any 32 KWord block; and password-based software protection adds authentication before unlock commands-ensuring robust defense against accidental or malicious corruption.
Is the SST38VF6401B-70-5I-EKE-T compatible with JEDEC-standard flash interfaces?
Yes, the SST38VF6401B-70-5I-EKE-T conforms fully to JEDEC Standard JESD21-C for x16 flash pinouts and command sets, and is CFI (Common Flash Interface) compliant. This guarantees interoperability with standard memory controllers, BIOS/UEFI firmware, and third-party programming tools without custom driver development.
SST38VF6401B-70-5I-EKE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
SST38VF6401B-70-5I-EKE-T FAQ
1.How can I place an order for SST38VF6401B-70-5I-EKE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6401B-70-5I-EKE-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 SST38VF6401B-70-5I-EKE-T reliable?
The price and inventory of SST38VF6401B-70-5I-EKE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6401B-70-5I-EKE-T is usually 5 days.
3.What payment methods are accepted for SST38VF6401B-70-5I-EKE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6401B-70-5I-EKE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6401B-70-5I-EKE-T?
SST38VF6401B-70-5I-EKE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6401B-70-5I-EKE-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 SST38VF6401B-70-5I-EKE-T?
For technical support, including SST38VF6401B-70-5I-EKE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6401B-70-5I-EKE-T requirements.
6.How does Aetrix verify that SST38VF6401B-70-5I-EKE-T is sourced from the original manufacturer or authorized distributors?
All SST38VF6401B-70-5I-EKE-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 SST38VF6401B-70-5I-EKE-T meets industry standards.
7.What is the process for return or replacement of SST38VF6401B-70-5I-EKE-T?
All SST38VF6401B-70-5I-EKE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6401B-70-5I-EKE-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 SST38VF6401B-70-5I-EKE-T part is unused and in its original packaging.
Return procedure for SST38VF6401B-70-5I-EKE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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