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Microchip Technology SST38VF6401-90-5I-B3KE-NCJ
- Part No.:
- SST38VF6401-90-5I-B3KE-NCJ
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6401-90-5I-B3KE-NCJ.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,421
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Product details
Overview
SST38VF6401-90-5I-B3KE-NCJ from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC with single-voltage 2.7–3.6 V operation, 90 ns read access time, and 100,000 program/erase cycles endurance. It features hardware boot block protection, 128-bit unique ID, and JEDEC-standard x16 pinout - deployed in embedded firmware storage for industrial controllers and network edge devices.
For engineers reviewing the SST38VF6401-90-5I-B3KE-NCJ datasheet, SST38VF6401-90-5I-B3KE-NCJ pinout, SST38VF6401-90-5I-B3KE-NCJ application, or SST38VF6401-90-5I-B3KE-NCJ equivalent, key selection criteria include boot-block configuration (SST38VF6401 uses top-boot B0), TSOP-48 package compatibility, 16-word write buffer performance, and RY/BY# status signaling for real-time erase/program monitoring.
Technical Context
The SST38VF6401-90-5I-B3KE-NCJ implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed 18 ms sector/block erase times independent of wear level. Its command-set architecture supports JEDEC-standard x16 flash operations including Word-Program (7 µs typical), Write-Buffer Programming (1.75 µs/word), and Page Read (25 ns access for 4-word page).
It integrates dual protection schemes: hardware-based WP#-controlled boot block lock and software-configurable individual 32 KWord block protection. The device uses CMOS I/O compatible with 3.3 V systems and provides three end-of-write detection methods - Data# Polling (DQ7), Toggle Bits (DQ6/DQ2), and RY/BY# output - all synchronized to WE#/CE# timing edges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), supporting 22-bit address space (A0–A21) |
| Read Access Time | 90 ns maximum - defines minimum bus cycle time for random reads in legacy parallel interfaces |
| Page Read Access | 25 ns per word for 4-word page - enables burst-like throughput without external buffering |
| Write Buffer Size | 16-word buffer - reduces effective programming time by >80% vs. single-word writes |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 25°C |
| Supply Voltage | 2.7–3.6 V single supply - eliminates need for separate VPP generator in system design |
| Power Consumption | 4 mA active current (5 MHz); 3 µA standby and auto-low-power modes - critical for low-idle-power embedded hosts |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, standard JEDEC MO-141AC footprint. Pin pitch: 0.5 mm. Body dimensions: 12.0 × 20.0 × 1.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus; A21–A12 select sector during erase; A21–A15 select block |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; latched internally during write; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; must be low for any memory operation (read/write/erase) |
| OE# | Output Enable | Active-low output gate; controls DQ bus drive; high = 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 | Hardware boot block lock; grounded to protect top 8 KWord (B0/S0–S1) from accidental erase/program |
| RST# | Reset | Active-low hardware reset; forces device into read mode and clears internal state machines |
| RY/BY# | Ready/Busy | Open-drain status output; low = device busy (programming/erasing); used for polling-free synchronization |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; decoupling required per JEDEC layout guidelines |
| VSS | Ground | Reference ground for all signals; requires low-inductance connection to system GND plane |
| NC | No Connection | Pin 22 (TSOP) is unconnected - must remain floating or tied to GND per PCB layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows read/program to non-erasing sectors during active erase - essential for real-time firmware updates |
| 128-bit Unique ID | Factory-programmed serial number accessible via command sequence - enables secure device authentication |
| Security-ID OTP Area | 256-word user one-time-programmable region - stores cryptographic keys or calibration data permanently |
| Auto Low Power Mode | Automatically enters 3 µA standby after valid read - eliminates need for software power management |
| CFI Compliance | Supports Common Flash Interface queries - enables OS/driver auto-detection of geometry and timing parameters |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Code |
|---|---|
Use Scenario: Storing field-upgradable ladder logic and I/O configuration in programmable logic controllers operating in harsh temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware boot block protection to prevent corruption of startup routines during brown-out conditions. Use Value: 90 ns read access ensures deterministic boot timing; 100,000-cycle endurance supports decades of over-the-air firmware patches. |
Use Scenario: Holding bootloader and Linux kernel images in carrier-grade Ethernet routers requiring secure, tamper-resistant storage. IC Role / Device Role / Timing Role: Primary boot memory mapped to CPU address space; WP# pin hardwired to GND to lock B0 boot sector. Use Value: 128-bit UID enables device-specific key binding; CFI compliance simplifies BSP integration across multiple router SKUs. |
| Medical Diagnostic Equipment BIOS | Automotive ADAS Camera Module |
Use Scenario: Storing safety-critical initialization firmware and calibration tables in FDA-cleared imaging systems with strict data retention requirements. IC Role / Device Role / Timing Role: Trusted configuration store with >100-year data retention and password-protected sector locking. Use Value: Sector-erase suspend/resume allows live recalibration without interrupting image acquisition; RY/BY# enables precise timing of firmware validation. |
Use Scenario: Embedded firmware storage in vision processing modules where vibration resistance and thermal cycling reliability are mandatory. IC Role / Device Role / Timing Role: Parallel-interface flash directly connected to SoC's EMIF bus; operates at full speed under automotive temperature range. Use Value: SuperFlash technology delivers consistent 18 ms erase time across 10k+ thermal cycles - eliminating timing de-rating in production test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-90-5I-B3KE | Same 4M×16 density and TSOP-48 package; identical 90 ns read timing; differs in CFI version and minor command set revision | Drop-in replacement for legacy designs using SST39VF6401B; no PCB change required | Select when maintaining compatibility with existing SST39VF6401B firmware and layout |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns access, but uses different command set (Spansion/AMD style); no RY/BY# pin; requires software driver update | Requires modified bootloader for erase/write commands; lacks hardware reset (RST#) and auto-low-power mode | Choose only if migrating from Spansion-compatible platforms and accepting firmware rework |
Compared with SST38VF6401-90-5I-B3KE-NCJ, the SST39VF6401B variant offers seamless hardware compatibility, while the MX29LV640ETTI demands driver-level changes and sacrifices RST# and auto-low-power functionality - making the original part optimal for new designs requiring robustness and minimal firmware overhead.
Availability
SST38VF6401-90-5I-B3KE-NCJ is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot code, medical diagnostic BIOS, and automotive ADAS camera modules requiring stable component supply across extended product lifecycles.
Supply support for SST38VF6401-90-5I-B3KE-NCJ 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 nonvolatile memory solutions, with emphasis on reliability and long-term product support.
The SST38VF6401-90-5I-B3KE-NCJ belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) family, designed specifically for cost-sensitive, high-reliability embedded systems requiring fast parallel interface performance and robust data integrity.
FAQ
What boot block configuration does SST38VF6401-90-5I-B3KE-NCJ use?
The SST38VF6401-90-5I-B3KE-NCJ implements top-boot architecture: Block B0 (S0–S1, 8 KWord) is the protected boot sector. When WP# is grounded, this region is locked against accidental erase or program. This matches the SST38VF6401 memory map in DS20005015D Table 2, distinguishing it from SST38VF6402 (bottom-boot) and SST38VF6403/6404 (split-boot).
Does SST38VF6401-90-5I-B3KE-NCJ support both hardware and software block protection?
Yes. SST38VF6401-90-5I-B3KE-NCJ supports hardware boot block protection via the WP# pin, plus software-controlled individual 32 KWord block locking using command sequences. It also provides volatile (VPB) and non-volatile (NVPB) block protection bits, allowing flexible, field-updatable security policies without hardware modification.
What is the function of the RST# pin on SST38VF6401-90-5I-B3KE-NCJ?
The RST# pin on SST38VF6401-90-5I-B3KE-NCJ is an active-low hardware reset input that forces the device into read mode and clears internal command registers and state machines. It is essential for recovering from invalid command sequences or bus contention errors - a feature not present in many competing parallel NOR flash devices.
How does SST38VF6401-90-5I-B3KE-NCJ achieve its 100-year data retention specification?
SST38VF6401-90-5I-B3KE-NCJ achieves >100 years data retention through Microchip's SuperFlash split-gate cell architecture with thick-oxide tunneling injector, which minimizes charge leakage over time. This reliability is validated per JEDEC JESD22-A117 and confirmed in DS20005015D Section 1 - independent of erase/program cycle count.
Can SST38VF6401-90-5I-B3KE-NCJ operate at 2.7 V while maintaining 90 ns read access time?
Yes. SST38VF6401-90-5I-B3KE-NCJ guarantees 90 ns maximum read access time across its full 2.7–3.6 V supply range and -40°C to +85°C industrial temperature range, as specified in DS20005015D Absolute Maximum Ratings and AC Characteristics tables - no derating required at minimum VDD.
SST38VF6401-90-5I-B3KE-NCJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- 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:
- 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 (6x8)
SST38VF6401-90-5I-B3KE-NCJ FAQ
1.How can I place an order for SST38VF6401-90-5I-B3KE-NCJ through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6401-90-5I-B3KE-NCJ 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 SST38VF6401-90-5I-B3KE-NCJ reliable?
The price and inventory of SST38VF6401-90-5I-B3KE-NCJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6401-90-5I-B3KE-NCJ is usually 5 days.
3.What payment methods are accepted for SST38VF6401-90-5I-B3KE-NCJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6401-90-5I-B3KE-NCJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6401-90-5I-B3KE-NCJ?
SST38VF6401-90-5I-B3KE-NCJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6401-90-5I-B3KE-NCJ 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 SST38VF6401-90-5I-B3KE-NCJ?
For technical support, including SST38VF6401-90-5I-B3KE-NCJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6401-90-5I-B3KE-NCJ requirements.
6.How does Aetrix verify that SST38VF6401-90-5I-B3KE-NCJ is sourced from the original manufacturer or authorized distributors?
All SST38VF6401-90-5I-B3KE-NCJ 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 SST38VF6401-90-5I-B3KE-NCJ meets industry standards.
7.What is the process for return or replacement of SST38VF6401-90-5I-B3KE-NCJ?
All SST38VF6401-90-5I-B3KE-NCJ units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6401-90-5I-B3KE-NCJ, 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 SST38VF6401-90-5I-B3KE-NCJ part is unused and in its original packaging.
Return procedure for SST38VF6401-90-5I-B3KE-NCJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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