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Microchip Technology SST38VF6403-90-5C-B3KE
- Part No.:
- SST38VF6403-90-5C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6403-90-5C-B3KE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
SST38VF6403-90-5C-B3KE 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-used in embedded firmware storage for industrial controllers and network edge devices.
For engineers reviewing the SST38VF6403-90-5C-B3KE datasheet, SST38VF6403-90-5C-B3KE pinout, SST38VF6403-90-5C-B3KE application, or SST38VF6403-90-5C-B3KE equivalent, key selection criteria include boot block configuration (S0/S1 protected), 128-bit unique ID, erase-suspend/resume capability, and TSOP-48 package compatibility with JEDEC x16 flash interfaces.
Technical Context
The SST38VF6403-90-5C-B3KE implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed 18 ms sector/block erase times independent of program/erase cycle count. Its command-set architecture conforms to JEDEC standard pinouts and CFI, supporting software-controlled individual block (32 KWord) protection and password-based security.
It features dual status detection (DQ6 toggle bit, DQ7 data# polling) and RY/BY# output for real-time write operation monitoring. The device supports Auto Low Power mode (3 µA standby), 4-word page read buffer, and 16-word write buffer with 1.75 µs/word buffered programming-optimized for deterministic firmware update latency in resource-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for boot code and configuration data |
| Read Access Time | 90 ns max - ensures compatibility with 11 MHz synchronous bus timing in legacy microcontroller interfaces |
| Page Read Time | 25 ns per word - enables burst reads at up to 40 MB/s effective throughput for sequential firmware execution |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over 10+ years in industrial deployments |
| Data Retention | >100 years - guarantees long-term integrity of calibration data and security keys without refresh |
| Supply Voltage | 2.7–3.6 V - interoperable with 3.3 V logic families and tolerant of brown-out conditions in unregulated power rails |
| Write Buffer Size | 16-word - reduces host CPU overhead during multi-word writes by batching commands into single buffer load |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), JEDEC-standard footprint compatible with automated PCB assembly and socketed prototyping.
| 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 with internal latching; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; device enters standby (3 µA) when high |
| OE# | Output Enable | Active-low output gate; controls data bus visibility without affecting internal state |
| WE# | Write Enable | Active-low control for write/program/erase command latching; synchronizes command sequences |
| WP# | Write Protect | Hardware boot block lock: grounded to protect S0/S1 (8 KWord) from accidental erase/program |
| RST# | Reset | Active-low hardware reset; forces return to read mode after power-up or error recovery |
| RY/BY# | Ready/Busy | Open-drain status output: low during active program/erase, high when ready for next command |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows read/program of non-erasing sectors during background erase-critical for real-time firmware patching |
| 128-bit Unique ID | Factory-programmed identifier enabling secure device binding and anti-cloning in certified systems |
| Security-ID OTP Area | 256-word one-time-programmable region for storing cryptographic keys or license tokens |
| Uniform + Non-Uniform Boot Block | SST38VF6403 uses top-boot configuration (B0 = boot block); supports both hardware (WP#) and software block locking |
| CFI Compliance | Enables automatic parameter discovery by host bootloader-eliminates hard-coded timing constants in firmware |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
|
Use Scenario: Storing boot loader, FPGA configuration bitstream, and real-time OS kernel in programmable logic controllers with extended temperature operation. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with hardware write protection on boot sector to prevent corruption during brown-out events. Use Value: 90 ns read access ensures deterministic startup timing; 100,000-cycle endurance supports field firmware upgrades across 15-year product lifecycle. |
Use Scenario: Holding boot image and runtime configuration for enterprise-grade Ethernet switches requiring zero-downtime firmware activation. IC Role / Device Role / Timing Role: Dual-bank-capable flash enabling A/B firmware partitioning with atomic swap via sector-level erase control. Use Value: Erase-suspend/resume allows live packet forwarding while updating secondary bank; RY/BY# signal enables precise interrupt-driven status polling. |
| Medical Diagnostic Device Calibration | Automotive ECU Configuration |
|
Use Scenario: Retaining sensor calibration coefficients and regulatory audit logs in portable ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with OTP Security-ID for HIPAA-compliant data provenance. Use Value: >100-year data retention guarantees calibration validity across device service life; 128-bit UID enables traceability to manufacturing batch. |
Use Scenario: Storing adaptive engine control parameters and emission compliance maps in Tier-1 automotive ECUs. IC Role / Device Role / Timing Role: JEDEC-compliant x16 interface synchronized to CAN-FD host controller for OTA update delivery. Use Value: Write-buffer programming (1.75 µs/word) minimizes update window duration-reducing risk of power interruption during critical reflash operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST38VF6401-90-5C-B3KE | Top-boot configuration with uniform 32 KWord blocks; no per-sector VPB/NVPB in B0 | Lacks SST38VF6403's granular 4 KWord sector protection in boot block-less suitable for partial-field updates | Select when full-block boot protection suffices and cost sensitivity outweighs fine-grained security needs |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns access, but uses different command set (non-CFI) and lacks erase-suspend | No RY/BY# pin or toggle-bit status; requires polling-only detection-increases host CPU load | Choose only if legacy board layout mandates identical pinout and existing firmware avoids suspend/resume flows |
Compared with SST38VF6401-90-5C-B3KE and MX29LV640ETTI-90G, the SST38VF6403-90-5C-B3KE uniquely combines top-boot sector granularity, CFI auto-discovery, and hardware-supported erase-suspend-enabling safer, faster, and more maintainable firmware architectures in safety-critical systems.
Availability
SST38VF6403-90-5C-B3KE is available at Aetrix Electronics and suitable for industrial PLCs, network infrastructure equipment, medical diagnostics, automotive ECUs, and aerospace avionics requiring stable component supply and long-term obsolescence management.
Supply support for SST38VF6403-90-5C-B3KE 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 industrial-grade qualification.
The SST38VF6403 belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) family, designed specifically for embedded systems demanding deterministic firmware execution, robust data retention, and secure field-upgrade capabilities.
FAQ
What is the boot block configuration of the SST38VF6403-90-5C-B3KE?
The SST38VF6403-90-5C-B3KE implements a top-boot configuration where Block B0 (S0–S7, 8 KWord) serves as the protected boot sector. Hardware write protection is enabled via the WP# pin, and software-controlled individual sector locking is supported for S0 and S1. This differs from SST38VF6404's bottom-boot layout and provides deterministic startup integrity for industrial firmware.
Does the SST38VF6403-90-5C-B3KE support erase-suspend functionality?
Yes, the SST38VF6403-90-5C-B3KE fully supports erase-suspend and erase-resume commands (B0H and 30H). During a suspended sector or block erase, the device enters read mode within 20 µs, allowing host systems to read or program unprotected regions-enabling real-time firmware patching without halting system operation. This capability is confirmed in DS20005015D Section 11.
What package type is used for the SST38VF6403-90-5C-B3KE?
The SST38VF6403-90-5C-B3KE is supplied in a 48-lead TSOP (Thin Small Outline Package) with standard JEDEC pinout, as documented in Figure 2 of DS20005015D. It is not offered in TFBGA for this specific speed grade and marking suffix (B3KE), and the TSOP variant ensures compatibility with wave-solder and reflow assembly processes in industrial PCB manufacturing.
How does the write buffer feature improve programming efficiency in the SST38VF6403-90-5C-B3KE?
The SST38VF6403-90-5C-B3KE integrates a 16-word write buffer that reduces average programming time to 1.75 µs per word-over 4× faster than standard 7 µs word-program operations. By loading multiple words before committing to flash, it minimizes bus arbitration overhead and enables deterministic update windows, which is essential for fail-safe firmware deployment in safety-certified systems.
Is the SST38VF6403-90-5C-B3KE CFI-compliant and what does that enable?
Yes, the SST38VF6403-90-5C-B3KE is fully CFI (Common Flash Interface) compliant, as stated in the product description and Table 11 of DS20005015D. This allows host systems to automatically query device geometry, command sets, and timing parameters at runtime-eliminating hardcoded flash initialization routines and improving firmware portability across Microchip MPF+ devices.
SST38VF6403-90-5C-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFBGA
- 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-TFBGA
SST38VF6403-90-5C-B3KE FAQ
1.How can I place an order for SST38VF6403-90-5C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6403-90-5C-B3KE 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 SST38VF6403-90-5C-B3KE reliable?
The price and inventory of SST38VF6403-90-5C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6403-90-5C-B3KE is usually 5 days.
3.What payment methods are accepted for SST38VF6403-90-5C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6403-90-5C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6403-90-5C-B3KE?
SST38VF6403-90-5C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6403-90-5C-B3KE 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 SST38VF6403-90-5C-B3KE?
For technical support, including SST38VF6403-90-5C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6403-90-5C-B3KE requirements.
6.How does Aetrix verify that SST38VF6403-90-5C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST38VF6403-90-5C-B3KE 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 SST38VF6403-90-5C-B3KE meets industry standards.
7.What is the process for return or replacement of SST38VF6403-90-5C-B3KE?
All SST38VF6403-90-5C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6403-90-5C-B3KE, 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 SST38VF6403-90-5C-B3KE part is unused and in its original packaging.
Return procedure for SST38VF6403-90-5C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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