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Microchip Technology SST38VF6402B-70-5I-B3KE-T
- Part No.:
- SST38VF6402B-70-5I-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6402B-70-5I-B3KE-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,226
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Product details
Overview
SST38VF6402B-70-5I-B3KE-T from Microchip Technology is a 64 Mbit (4M × 16) Advanced Multi-Purpose Flash Plus memory IC designed for nonvolatile program, configuration, and data storage in embedded systems. It operates from a single 2.7–3.6 V supply, delivers 70 ns read access time, supports 100,000 erase/program cycles, and retains data for >100 years - enabling reliable boot code storage in industrial controllers and network edge devices.
For engineers reviewing the SST38VF6402B-70-5I-B3KE-T datasheet, SST38VF6402B-70-5I-B3KE-T pinout, SST38VF6402B-70-5I-B3KE-T application, or SST38VF6402B-70-5I-B3KE-T equivalent, key selection considerations include boot-block protection architecture (top-boot vs. bottom-boot), TSOP-48 vs. TFBGA-48 package compatibility, Page Read (25 ns) and Write-Buffer (1.75 µs/word) performance, and hardware reset (RST#) and ready/busy (RY/BY#) signaling for real-time operation monitoring.
Technical Context
The SST38VF6402B-70-5I-B3KE-T implements SST's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, delivering fixed erase/program times independent of cycle count - unlike conventional flash. Its JEDEC-standard x16 interface supports standard microprocessor bus protocols with latched address/data and CMOS I/O compatibility.
It features dual write detection methods (Data# Polling on DQ7, Toggle Bit on DQ6), hardware-based block protection (WP# input + volatile/non-volatile block locks), and Erase-Suspend/-Resume capability for concurrent read/program during background erase - critical for real-time firmware updates in telecom and automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), providing 8 MB of nonvolatile storage for boot firmware and configuration tables. |
| Read Access Time | 70 ns (max), enabling direct execution from flash (XIP) in 20–30 MHz microcontroller systems without wait states. |
| Page Read Speed | 25 ns per word (8-word page), reducing sequential read latency by ~64% vs. standard read mode - ideal for firmware loading. |
| Word-Program Time | 7 µs (typical), supporting fast field updates; Write-Buffer mode achieves 1.75 µs/word for burst programming of up to 16 words. |
| Endurance & Retention | ≥100,000 program/erase cycles and >100 years data retention - validated for mission-critical industrial control and medical device storage. |
| Supply Voltage | 2.7–3.6 V single supply, compatible with 3.3 V logic domains and eliminating need for external voltage translators. |
| Operating Temp | –40°C to +85°C (Industrial grade), qualified for use in extended-temperature environments including factory automation and outdoor gateways. |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, lead-free, surface-mountable with 0.5 mm pitch. Pinout conforms to JEDEC standard x16 flash memory layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (AMS = A21) selecting 4M × 16 locations; A21–A15 define block address for erase operations. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; outputs tri-stated when CE# or OE# is high; internally latched during write cycles. |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write operations; high state places device in standby (5 µA). |
| OE# | Output Enable | Active-low output gate; controls data bus drive; used with CE# to initiate read/page-read sequences. |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling/rising edges per JEDEC command protocol. |
| WP# | Write Protect | Active-low hardware lock for top boot block (B127); prevents accidental erase/program when grounded. |
| RST# | Hardware Reset | Active-low signal forcing device into Read mode; required for recovery after power-up or error conditions. |
| RY/BY# | Ready/Busy | Open-drain status output indicating active program/erase; asserted low during internal operations. |
Key Features
| Feature | Design Value |
|---|---|
| Top-boot block architecture | SST38VF6402B configures B127 (32 KWord) as protected boot sector - ensures bootloader integrity in fail-safe restart scenarios. |
| Erase-Suspend/-Resume | Allows interruption of block erase to perform reads or writes elsewhere, enabling real-time firmware patching without system stall. |
| 128-bit Unique ID + Security-ID | Provides immutable device fingerprint (128-bit) and 248-word OTP area for secure key storage or license binding. |
| Auto Low Power Mode | Reduces active read current from 25 mA to 5 µA after valid access - cuts dynamic power by 99.98% during idle polling intervals. |
| CFI & JEDEC Compliance | Enables plug-and-play integration with standard flash programmers and BIOS/UEFI firmware stacks without custom drivers. |
Applications
| Industrial PLC Firmware Storage | Telecom Base Station Configuration |
|---|---|
Use Scenario: Storing firmware images and parameter sets in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding startup code and runtime configuration tables accessed at power-on and during hot-swappable module replacement. Use Value: 100,000-cycle endurance and >100-year retention ensure firmware integrity across 15+ year equipment lifecycles without refresh. |
Use Scenario: Holding radio calibration profiles, protocol stacks, and field-upgradable configuration data in 4G/LTE remote radio units. IC Role / Device Role / Timing Role: Dual-mode flash supporting both XIP execution (via 70 ns read) and rapid reconfiguration (via 25 ns Page Read and Write-Buffer). Use Value: Erase-Suspend capability allows live base station re-tuning during ongoing traffic - no service interruption during firmware patching. |
| Automotive ECU Bootloader | Medical Imaging Device Calibration Data |
Use Scenario: Secure boot code storage in engine control units requiring ASIL-B compliant firmware integrity verification. IC Role / Device Role / Timing Role: Protected top-boot block (B127) stores signed bootloader; WP# pin hardens against voltage glitch attacks during startup. Use Value: Hardware reset (RST#) and RY/BY# signaling enable deterministic boot timing and failure recovery per ISO 26262 diagnostic requirements. |
Use Scenario: Storing sensor calibration coefficients and DICOM metadata templates in portable ultrasound and MRI consoles. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory retaining precision calibration values across thermal cycling and battery-backed power loss events. Use Value: SuperFlash technology's fixed erase time eliminates drift in recalibration latency - critical for FDA-mandated repeatability testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST38VF6401B-70-5I-B3KE-T | Bottom-boot architecture (B0 protected); identical timing, endurance, and voltage specs. | Requires firmware partitioning to place bootloader in lowest-address block instead of highest. | Select when legacy board design uses bottom-boot layout or requires backward compatibility with SST38VF6401B footprint. |
| MX29LV640ETTI-70G | 70 ns access, 64 Mbit x16, but lacks Erase-Suspend, Write-Buffer, and 128-bit UID; uses different command set. | No real-time suspend capability; unsuitable for systems requiring concurrent read/erase during operation. | Choose only for cost-sensitive, non-real-time applications where firmware update concurrency is not required. |
Compared with SST38VF6401B-70-5I-B3KE-T, the SST38VF6402B-70-5I-B3KE-T enables top-boot deployment without software changes, while MX29LV640ETTI-70G sacrifices advanced features for lower unit cost - making SST38VF6402B optimal for new designs demanding field-upgrade resilience and security.
Availability
SST38VF6402B-70-5I-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, telecom base station configuration, automotive ECU bootloader, medical imaging calibration data, and network gateway boot code requiring stable component supply across long-lifecycle programs.
Supply support for SST38VF6402B-70-5I-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 global semiconductor company specializing in microcontrollers, analog, FPGA, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its nonvolatile memory portfolio.
The SST38VF6402B belongs to the Advanced Multi-Purpose Flash Plus (MPF+) product line, engineered for high-reliability embedded applications requiring fast, secure, and energy-efficient firmware and configuration storage in constrained thermal and power environments.
FAQ
What is the boot block configuration of the SST38VF6402B-70-5I-B3KE-T?
The SST38VF6402B-70-5I-B3KE-T implements a top-boot architecture: Block B127 (32 KWord, address A21–A15 = 1111111) is the protected boot sector. This differs from the SST38VF6401B (bottom-boot, B0 protected) and enables secure bootloader placement at the highest memory address - simplifying linker script configuration and fault-isolation in safety-critical firmware.
Does the SST38VF6402B-70-5I-B3KE-T support Page Read, and what is its performance benefit?
Yes, the SST38VF6402B-70-5I-B3KE-T supports Page Read with 25 ns access time for all eight words in a page. This reduces average sequential read latency by 64% versus standard 70 ns read mode - accelerating firmware image loading and configuration table parsing in microcontroller-based systems without requiring external cache.
How does the Write-Buffer feature improve programming efficiency in the SST38VF6402B-70-5I-B3KE-T?
The SST38VF6402B-70-5I-B3KE-T's 16-word Write Buffer reduces effective word-program time to 1.75 µs/word (vs. 7 µs standard), enabling burst programming of up to 16 words with one Program Buffer-to-Flash command. This cuts total firmware update time by up to 75% compared to single-word programming - critical for field-deployed devices with limited maintenance windows.
What hardware signals indicate operational status during programming or erase on the SST38VF6402B-70-5I-B3KE-T?
The SST38VF6402B-70-5I-B3KE-T provides three concurrent status indicators: RY/BY# (open-drain ready/busy output), Data# Polling (DQ7 toggles complement of data until completion), and Toggle Bit (DQ6 toggles during operation). These allow flexible host-side monitoring - RY/BY# for hardware interrupt-driven flow, DQ7/DQ6 for software-polling fallback - ensuring robust operation under varying system constraints.
Is the SST38VF6402B-70-5I-B3KE-T compatible with standard JEDEC flash controllers and programmers?
Yes, the SST38VF6402B-70-5I-B3KE-T is fully JEDEC-standard compliant for x16 flash pinouts and command sets, and CFI-compliant for automatic device identification. It works with industry-standard flash programmers (e.g., Xeltek, BP Microsystems), BIOS/UEFI firmware tools, and microcontroller boot ROM interfaces without custom initialization sequences or driver modifications.
SST38VF6402B-70-5I-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFBGA
- 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-TFBGA (6x8)
SST38VF6402B-70-5I-B3KE-T FAQ
1.How can I place an order for SST38VF6402B-70-5I-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6402B-70-5I-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 SST38VF6402B-70-5I-B3KE-T reliable?
The price and inventory of SST38VF6402B-70-5I-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 SST38VF6402B-70-5I-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST38VF6402B-70-5I-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6402B-70-5I-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6402B-70-5I-B3KE-T?
SST38VF6402B-70-5I-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6402B-70-5I-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 SST38VF6402B-70-5I-B3KE-T?
For technical support, including SST38VF6402B-70-5I-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6402B-70-5I-B3KE-T requirements.
6.How does Aetrix verify that SST38VF6402B-70-5I-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST38VF6402B-70-5I-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 SST38VF6402B-70-5I-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST38VF6402B-70-5I-B3KE-T?
All SST38VF6402B-70-5I-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6402B-70-5I-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 SST38VF6402B-70-5I-B3KE-T part is unused and in its original packaging.
Return procedure for SST38VF6402B-70-5I-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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