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Microchip Technology SST38VF6403-90-5C-EKE
- Part No.:
- SST38VF6403-90-5C-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6403-90-5C-EKE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,972
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Product details
Overview
SST38VF6403-90-5C-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 2.7–3.6V single supply, with 90 ns read access time and JEDEC-standard x16 pinout. It serves as nonvolatile program/data storage in embedded controllers, industrial HMIs, and network boot firmware.
For engineers reviewing the SST38VF6403-90-5C-EKE datasheet, SST38VF6403-90-5C-EKE pinout, SST38VF6403-90-5C-EKE application, or SST38VF6403-90-5C-EKE equivalent, this page delivers verified specifications, boot-block protection mapping, Page Read timing behavior, and direct alternatives for firmware storage upgrades requiring uniform 32 KWord block erase and sector-level flexibility.
Technical Context
The SST38VF6403-90-5C-EKE 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 supports JEDEC-standard x16 flash operations including Word-Program (7 µs typical), Write-Buffer Programming (1.75 µs/word), and Erase-Suspend/-Resume.
It features hardware boot-block protection on Block B0 (S0–S1 only), with per-sector VPB/NVPB control for S0–S1 and uniform 32 KWord protection for remaining blocks. The device uses DQ6/DQ7 status polling and RY/BY# output for write completion detection and supports Auto Low Power mode (3 µA standby).
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 - determines minimum CPU wait-state insertion for asynchronous 16-bit bus interfaces. |
| Page Read Time | 25 ns per word (4-word buffer) - enables burst reads at up to 40 MHz effective throughput for code execution. |
| Word-Program Time | 7 µs typical - sets worst-case latency for field-updatable parameter writes without buffering. |
| Erase Time | 18 ms sector/block, 40 ms chip - fixed duration enables deterministic firmware update scheduling. |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - qualifies for long-life industrial deployments. |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic rails and tolerant of brown-out conditions down to 2.7 V. |
Pinout & Package
Package: 48-ball TFBGA (10 mm × 11 mm, 0.8 mm pitch) and 48-lead TSOP (12 mm × 20 mm). The SST38VF6403-90-5C-EKE uses JEDEC-standard x16 address/data multiplexing with dedicated control pins for hardware reset (RST#), write protect (WP#), and ready/busy signaling (RY/BY#).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A12 select sector during Sector-Erase. |
| DQ0–DQ15 | Data I/O (x16) | 16-bit bidirectional data bus with internal latching; tri-stated when CE# or OE# high. |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write operations and latch address/data. |
| OE# | Output Enable | Active-low output gate; controls data bus drive during read cycles only. |
| WE# | Write Enable | Controls write strobe timing; falling edge latches address, rising edge latches data per JEDEC protocol. |
| WP# | Write Protect | Hardware lock for top boot block (B0 sectors S0–S1); grounded to prevent accidental erase/program. |
| RST# | Reset Input | Asynchronous active-low reset that forces device into Read mode, clearing internal command states. |
| RY/BY# | Ready/Busy Output | Open-drain status indicator: low = active programming/erasing; used for hardware flow control. |
Key Features
| Feature | Design Value |
|---|---|
| Boot Block Protection | Hardware-enabled 8 KWord (S0–S1) protection in Block B0, preventing corruption of bootloader code. |
| Write-Buffer Programming | 16-word buffer reduces effective programming time to 1.75 µs/word - accelerates firmware patching. |
| Erase-Suspend/-Resume | Allows read/program access to unprotected sectors during erase - enables real-time system operation. |
| Auto Low Power Mode | Reduces active read current from 4 mA to 3 µA after valid access - cuts power in idle HMI or gateway states. |
| CFI Compliance | Enables automatic identification and parameter retrieval by host BIOS or bootloader - simplifies driver porting. |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with field serviceability requirements. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware boot-block protection and 100,000-cycle endurance for over-the-air updates. Use Value: Prevents bootloader corruption during partial firmware updates using WP#-enabled B0 sector locking and Erase-Suspend for concurrent diagnostics. |
Use Scenario: Holding boot code and configuration data in enterprise-grade routers requiring secure, field-upgradable storage. IC Role / Device Role / Timing Role: JEDEC-compliant x16 flash providing 90 ns read access for fast boot initialization and 25 ns Page Read for runtime instruction fetch. Use Value: Enables deterministic 40 ms chip-erase for factory reset and 18 ms block-erase for modular firmware component updates. |
| Medical Device Configuration Memory | Automotive Infotainment System Storage |
|
Use Scenario: Retaining calibration parameters and user preferences across power cycles in Class II medical instruments. IC Role / Device Role / Timing Role: High-reliability flash with >100-year data retention and 128-bit unique ID for device traceability. Use Value: Guarantees parameter integrity over 15+ year product lifetimes using fixed-erase-time SuperFlash technology unaffected by wear leveling drift. |
Use Scenario: Storing UI assets, voice prompt audio, and navigation map metadata in automotive head units with thermal cycling exposure. IC Role / Device Role / Timing Role: 2.7–3.6 V operation tolerates automotive battery transients; TFBGA package supports compact, vibration-resistant PCB layout. Use Value: Delivers 3 µA standby current in sleep mode and supports Page Read bursts to sustain 40 MHz display refresh bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile x16 flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-70-5C-EKE | 70 ns read access (vs. 90 ns); no RST# pin; boot block located at top (B127) instead of bottom (B0). | Suitable for designs prioritizing faster boot latency but requiring top-boot architecture and omitting hardware reset. | Select if system requires sub-75 ns read timing and uses top-boot layout; verify RST# signal path removal. |
| MX29LV640ETTI-90G | Same 90 ns speed and 4M×16 organization; lacks Write-Buffer Programming and Erase-Suspend; uses different command set. | Better suited for cost-sensitive consumer electronics where advanced suspend/resume is unnecessary. | Choose for legacy compatibility with Macronix-based designs; confirm software driver adaptation for command differences. |
Compared with SST38VF6403-90-5C-EKE, SST39VF6401B-70-5C-EKE trades boot-block location and reset capability for faster access, while MX29LV640ETTI-90G sacrifices suspend/resume and write-buffer acceleration to reduce bill-of-materials cost in volume production.
Availability
SST38VF6403-90-5C-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot memory, medical device configuration memory, and automotive infotainment system storage requiring stable component supply across extended product lifecycles.
Supply support for SST38VF6403-90-5C-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with emphasis on reliability, longevity, and industrial-grade qualification.
The SST38VF6403-90-5C-EKE belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) family, designed specifically for embedded systems requiring robust, field-upgradable nonvolatile storage with deterministic timing and hardware security features.
FAQ
What is the boot block configuration of the SST38VF6403-90-5C-EKE?
The SST38VF6403-90-5C-EKE implements an 8 KWord boot block consisting of sectors S0 and S1 within Block B0. This region supports hardware write protection via the WP# pin and features per-sector volatile/non-volatile block protection (VPB/NVPB), unlike uniform 32 KWord protection applied to all other blocks. This configuration ensures bootloader integrity during firmware updates.
Does the SST38VF6403-90-5C-EKE support Page Read, and what is its performance benefit?
Yes, the SST38VF6403-90-5C-EKE supports Page Read with a 4-word buffer and 25 ns access time per word. This enables burst reads at up to 40 MHz effective throughput, significantly accelerating code execution from flash compared to standard 90 ns random reads - critical for reducing boot time and improving UI responsiveness in embedded applications.
How does the SST38VF6403-90-5C-EKE handle write operation completion detection?
The SST38VF6403-90-5C-EKE provides three concurrent methods: Data# Polling (DQ7 toggles until completion), Toggle Bit (DQ6 toggles during operation), and RY/BY# output (active-low during programming/erasing). These signals allow flexible host-side polling or interrupt-driven handling without fixed timeout delays, ensuring reliable firmware update sequencing.
What package options are available for the SST38VF6403-90-5C-EKE?
The SST38VF6403-90-5C-EKE is offered in two RoHS-compliant packages: 48-lead TSOP (12 mm × 20 mm) and 48-ball TFBGA (10 mm × 11 mm, 0.8 mm pitch). Both adhere to JEDEC-standard x16 pinouts, enabling layout reuse across form factors - the TFBGA supports higher-density routing and better thermal performance in space-constrained designs.
Can the SST38VF6403-90-5C-EKE perform erase operations while allowing concurrent reads?
Yes, the SST38VF6403-90-5C-EKE supports Erase-Suspend and Erase-Resume commands. When suspended, it enters read mode within 20 µs, permitting reads or word-programming in unprotected sectors. This capability enables real-time diagnostics or user interaction during background firmware erasure - a key advantage over basic flash devices lacking suspend functionality.
SST38VF6403-90-5C-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
SST38VF6403-90-5C-EKE FAQ
1.How can I place an order for SST38VF6403-90-5C-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6403-90-5C-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 SST38VF6403-90-5C-EKE reliable?
The price and inventory of SST38VF6403-90-5C-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6403-90-5C-EKE is usually 5 days.
3.What payment methods are accepted for SST38VF6403-90-5C-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6403-90-5C-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6403-90-5C-EKE?
SST38VF6403-90-5C-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6403-90-5C-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 SST38VF6403-90-5C-EKE?
For technical support, including SST38VF6403-90-5C-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6403-90-5C-EKE requirements.
6.How does Aetrix verify that SST38VF6403-90-5C-EKE is sourced from the original manufacturer or authorized distributors?
All SST38VF6403-90-5C-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 SST38VF6403-90-5C-EKE meets industry standards.
7.What is the process for return or replacement of SST38VF6403-90-5C-EKE?
All SST38VF6403-90-5C-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6403-90-5C-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 SST38VF6403-90-5C-EKE part is unused and in its original packaging.
Return procedure for SST38VF6403-90-5C-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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