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Microchip Technology SST38VF6402-90-5I-B3KE-T
- Part No.:
- SST38VF6402-90-5I-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6402-90-5I-B3KE-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,393
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Product details
Overview
SST38VF6402-90-5I-B3KE-T from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, designed for nonvolatile program, configuration, and data storage in embedded systems. It operates from a single 2.7–3.6V supply, delivers 90 ns read access time, supports 100,000 program/erase cycles, and retains data for >100 years. It is used in industrial controllers requiring field-upgradable firmware with hardware boot block protection.
For engineers reviewing the SST38VF6402-90-5I-B3KE-T datasheet, SST38VF6402-90-5I-B3KE-T pinout, SST38VF6402-90-5I-B3KE-T application, or SST38VF6402-90-5I-B3KE-T equivalent, this page provides verified technical context, JEDEC-compliant x16 interface details, boot-block protection mapping, write-buffer programming timing, and real-world flash replacement guidance for legacy 48-pin TSOP designs.
Technical Context
The SST38VF6402-90-5I-B3KE-T implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its architecture supports uniform 32 KWord block erase, sector erase (4 KWord), and chip-erase - all with typical times of 18 ms, 18 ms, and 40 ms respectively.
It features dual status detection (DQ6 toggle bit and DQ7 data# polling), RY/BY# output, hardware reset (RST#), and WP#-controlled top-boot block protection. The device uses JEDEC-standard x16 pinout and CFI-compliant command sets, with latched address/data and 4-word page-read buffer delivering 25 ns page-read access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware images or configuration tables. |
| Read Access Time | 90 ns (max), enabling direct execution from flash in 20 MHz bus systems without wait states. |
| Page Read Access | 25 ns (typical), accelerating sequential reads within 4-word pages for boot code fetch efficiency. |
| Write Buffer Size | 16-word buffer, reducing effective word-program time to 1.75 µs/word for burst writes. |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 25°C - suitable for unattended industrial deployments. |
| Supply Voltage | 2.7–3.6V single supply, compatible with 3.3V logic domains and eliminating need for charge pumps or external VPP. |
| Protection Features | Hardware boot block (B127), software-controlled individual block lock, password protection, and 128-bit unique ID for secure firmware binding. |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, standard JEDEC MO-141AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A15 select block, A21–A12 select sector. |
| DQ0–DQ15 | Data I/O (x16) | Bidirectional CMOS-compatible data bus; outputs tri-stated when CE# or OE# high; latched during 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 forces DQx into high-impedance state. |
| WE# | Write Enable | Active-low control for write cycles; latches address/data on falling/rising edges per JEDEC timing. |
| WP# | Write Protect | Active-low hardware lock for boot block B127; grounded to prevent accidental erase/program of critical firmware. |
| RST# | Reset | Active-low hardware reset; returns device to read mode and aborts ongoing operations. |
| RY/BY# | Ready/Busy | Open-drain status output; low during internal program/erase; used for hardware handshaking. |
| VDD | Power Supply | 2.7–3.6V core and I/O supply; decoupling required per JEDEC layout guidelines. |
| VSS | Ground | Signal and power ground reference; two dedicated pins for noise reduction. |
| NC | No Connection | Pin 22 (TSOP) is unconnected; must be left floating or tied to ground per board design rules. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide injector enables fixed 18 ms erase time across full lifecycle - no software de-rating needed. |
| Erase-Suspend/Resume | Allows reading or programming other blocks during active erase, enabling real-time firmware updates without halting system operation. |
| Auto Low Power Mode | Reduces active read current from 4 mA to 3 µA after valid access - cuts quiescent power by >99% in idle polling scenarios. |
| 128-bit Unique ID + Security-ID | Factory-programmed ID plus 256-word OTP area enable cryptographic key binding and anti-cloning for secure boot implementations. |
| JEDEC & CFI Compliance | Guarantees interoperability with standard flash programmers, BIOS/UEFI firmware stacks, and OS-level MTD drivers without vendor-specific toolchains. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing updatable ladder logic and I/O mapping tables in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile x16 parallel flash serving as primary firmware repository with hardware boot block protection against corruption during power loss. Use Value: 90 ns read access enables zero-wait-state execution; 100,000-cycle endurance supports quarterly firmware patches over 10+ year product life. |
Use Scenario: Holding calibrated sensor offsets, user preferences, and regulatory audit logs in FDA-cleared diagnostic equipment. IC Role / Device Role / Timing Role: Secure configuration store with 128-bit UID and OTP Security-ID for traceable device identity and tamper-evident settings. Use Value: >100-year data retention ensures calibration persistence across device lifetime; WP#-locked boot block prevents unauthorized firmware rollback. |
| Telecom Base Station Boot ROM | Automotive Infotainment System Code Storage |
Use Scenario: Hosting bootloader and FPGA configuration bitstreams in outdoor wireless infrastructure with wide temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: High-reliability parallel flash with RY/BY# handshake and Erase-Suspend for fail-safe remote updates over backhaul links. Use Value: 25 ns page-read accelerates boot sequence; uniform 32 KWord block erase allows atomic firmware partition updates without service interruption. |
Use Scenario: Storing navigation map tiles, voice recognition models, and UI assets in automotive head units requiring AEC-Q100 Grade 3 qualification. IC Role / Device Role / Timing Role: JEDEC-compliant x16 flash interfaced to ARM Cortex-A application processor via synchronous bus controller. Use Value: Write-buffer programming (1.75 µs/word) reduces OTA update time by 75% vs. standard word-program; CFI support simplifies BSP integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6402-90-5I-B3KE-T | Same density, pinout, and timing; differs in internal architecture (SST39 uses enhanced SuperFlash with faster 70 ns read). | Higher performance read path suits real-time audio buffering; not drop-in due to different RY/BY# assertion timing. | Select only if 70 ns read is required and timing margins allow verification of RY/BY# handshake. |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns, 3.0–3.6V; lacks write buffer, erase-suspend, and 128-bit UID; uses different command set. | Lower-cost alternative where firmware update frequency is low and security features are unnecessary. | Use when cost sensitivity outweighs field-upgrade flexibility and long-term data integrity requirements. |
Compared with SST38VF6402-90-5I-B3KE-T, the SST39VF6402 offers faster read but requires timing revalidation, while MX29LV640ETTI-90G sacrifices programmability and security for lower BOM cost - making SST38VF6402 the optimal balance of upgrade capability, reliability, and feature completeness for mission-critical embedded systems.
Availability
SST38VF6402-90-5I-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 product lifecycles.
Supply support for SST38VF6402-90-5I-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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with emphasis on reliability, longevity, and embedded system integration.
The SST38VF6402 belongs to Microchip's Advanced Multi-Purpose Flash Plus family, engineered for robust firmware storage in harsh environments where field updates, data integrity, and long-term retention are mandatory.
FAQ
What is the boot block configuration of SST38VF6402-90-5I-B3KE-T?
The SST38VF6402-90-5I-B3KE-T implements bottom-boot architecture with Block B127 (32 KWord) designated as the protected boot block. When WP# is grounded, B127 is hardware-locked against erase and program operations. This matches Table 2 in DS20005015D and ensures safe bootloader storage independent of application firmware partitions.
Does SST38VF6402-90-5I-B3KE-T support write-buffer programming, and what is its capacity?
Yes, SST38VF6402-90-5I-B3KE-T supports write-buffer programming with a 16-word buffer. This enables burst loading followed by single-shot flash commit, achieving an effective programming rate of 1.75 µs per word - significantly faster than standard 7 µs word-program time. Buffer operation requires strict adherence to the 5–20 cycle command sequence defined in DS20005015D.
How does SST38VF6402-90-5I-B3KE-T indicate completion of program or erase operations?
SST38VF6402-90-5I-B3KE-T provides three concurrent status mechanisms: DQ6 toggle bit (toggles during operation, stops when complete), DQ7 data# polling (complement of data during write, valid data when done), and RY/BY# pin (active-low open-drain signal). All are valid after the rising edge of the sixth WE# pulse for erase and fourth WE# pulse for program operations.
Is SST38VF6402-90-5I-B3KE-T compatible with standard JEDEC x16 flash sockets and programmers?
Yes, SST38VF6402-90-5I-B3KE-T conforms fully to JEDEC Standard JESD21-C for x16 flash pinouts and command sets, and is CFI-compliant. It works with industry-standard flash programmers (e.g., Xeltek, BP Microsystems) and BIOS/UEFI firmware tools without custom drivers - provided the host interface observes 90 ns timing and proper WE#/CE#/OE# sequencing.
What package type is used in SST38VF6402-90-5I-B3KE-T, and is it RoHS compliant?
SST38VF6402-90-5I-B3KE-T is supplied in a 48-lead TSOP (Thin Small Outline Package) with standard MO-141AC footprint. It is fully RoHS compliant per Microchip's DS20005015D documentation and carries the "-I" industrial temperature grade (-40°C to +85°C), making it suitable for demanding embedded environments.
SST38VF6402-90-5I-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
SST38VF6402-90-5I-B3KE-T FAQ
1.How can I place an order for SST38VF6402-90-5I-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6402-90-5I-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 SST38VF6402-90-5I-B3KE-T reliable?
The price and inventory of SST38VF6402-90-5I-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 SST38VF6402-90-5I-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST38VF6402-90-5I-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6402-90-5I-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6402-90-5I-B3KE-T?
SST38VF6402-90-5I-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6402-90-5I-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 SST38VF6402-90-5I-B3KE-T?
For technical support, including SST38VF6402-90-5I-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6402-90-5I-B3KE-T requirements.
6.How does Aetrix verify that SST38VF6402-90-5I-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST38VF6402-90-5I-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 SST38VF6402-90-5I-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST38VF6402-90-5I-B3KE-T?
All SST38VF6402-90-5I-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6402-90-5I-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 SST38VF6402-90-5I-B3KE-T part is unused and in its original packaging.
Return procedure for SST38VF6402-90-5I-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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