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Microchip Technology SST38VF6401-90-5C-EKE-T
- Part No.:
- SST38VF6401-90-5C-EKE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6401-90-5C-EKE-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,518
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Product details
Overview
SST38VF6401-90-5C-EKE-T 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 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 loaders.
For engineers reviewing the SST38VF6401-90-5C-EKE-T datasheet, SST38VF6401-90-5C-EKE-T pinout, SST38VF6401-90-5C-EKE-T application, or SST38VF6401-90-5C-EKE-T equivalent, this page delivers verified flash architecture details, boot-block protection mapping, write-buffer timing, erase-suspend capability, and TSOP-48 package interface constraints - all confirmed for the exact SST38VF6401 variant.
Technical Context
The SST38VF6401-90-5C-EKE-T implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed 18 ms sector/block erase and 7 µs word-program times independent of cycle count. Its command-set architecture supports JEDEC-standard x16 flash operations including Write-Buffer Programming (16-word buffer), Page Read (4-word page, 25 ns/page access), and Erase-Suspend/Resume.
It features hardware-based boot-block protection (B0 protected when WP# = low), volatile/non-volatile block locking (VPB/NVPB), 128-bit unique ID, and security-ID OTP space (256 words). The RY/BY# output and DQ6/DQ7 status bits provide real-time program/erase completion signaling without external polling overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), supporting 8 MB of x16-addressable nonvolatile storage |
| Read Access Time | 90 ns max - defines minimum clock period for synchronous read interfaces |
| Page Read Time | 25 ns per word for same-page reads - enables burst throughput up to 40 MB/s for 4-word pages |
| Word-Program Time | 7 µs typical - sets worst-case latency for single-word firmware patching |
| Write-Buffer Capacity | 16-word buffer - reduces effective programming time to 1.75 µs/word when loading contiguous data |
| Erase Time (Sector/Block) | 18 ms typical - consistent across full lifecycle, eliminating software de-rating |
| Data Retention | >100 years - validated at 25°C, enabling long-life field deployments without refresh |
| Endurance | 100,000 program/erase cycles - guarantees reliability for frequent configuration updates |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), standard JEDEC MO-141AC footprint, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus; A21–A12 selects sector during Sector-Erase, A21–A15 selects block during Block-Erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; latched internally during writes; 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 drive; must be low with CE# for valid reads |
| WE# | Write Enable | Controls latching of addresses/data during write sequences; rising edge initiates internal program/erase |
| WP# | Write Protect | Hardware boot-block lock: grounds B0 (top boot) protection when low; no effect on other blocks |
| RST# | Reset | Active-low hardware reset; forces device into Read mode, clearing pending operations |
| RY/BY# | Ready/Busy | Open-drain status output; low during active program/erase, high when ready |
| VDD | Power Supply | 2.7–3.6 V core supply; powers all logic and memory array; no separate I/O voltage required |
| VSS | Ground | System reference ground; two dedicated pins (pins 23 and 47) for noise reduction |
| NC | No Connection | Pin 22 (TSOP) is unconnected; must be left floating or tied to ground per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide injector enables fixed 18 ms erase time over full 100k-cycle life - eliminates software timing margining |
| Boot Block Protection | Hardware-enabled top-boot block (B0) lock via WP# pin - prevents accidental overwrite of bootloader code without firmware intervention |
| Write-Buffer Programming | 16-word buffer with 1.75 µs/word effective programming - cuts firmware update time by >80% vs. single-word writes |
| Erase-Suspend/Resume | Pause active sector/block erase to read/program other regions - enables real-time system responsiveness during background flash maintenance |
| Page Read Mode | 4-word asynchronous page buffer with 25 ns access - delivers 4× faster sequential read throughput than standard 90 ns random access |
| Security-ID OTP | 256-word user-programmable one-time memory - stores cryptographic keys or device-specific identifiers with permanent write-lock capability |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
Use Scenario: Storing field-upgradable firmware images and configuration tables in programmable logic controllers with extended temperature operation. IC Role / Device Role / Timing Role: Nonvolatile x16 boot memory mapped to microcontroller address space; provides 90 ns read access for fast startup and deterministic instruction fetch. Use Value: 100,000-cycle endurance and >100-year data retention ensure reliable operation over 15+ year product lifecycles without backup power or refresh. |
Use Scenario: Holding bootloader, kernel image, and fail-safe recovery partitions in enterprise-grade Ethernet switches and routers. IC Role / Device Role / Timing Role: Primary boot device interfaced to ARM Cortex-A series processors; leverages Page Read (25 ns) for rapid kernel decompression. Use Value: Hardware WP#-enabled boot-block protection prevents remote exploit-induced corruption of critical boot code during OTA updates. |
| Medical Diagnostic HMI Storage | Automotive Infotainment Configuration |
Use Scenario: Storing UI assets, calibration data, and regulatory-compliant audit logs in portable ultrasound and ECG devices. IC Role / Device Role / Timing Role: Secure configuration memory with 128-bit unique ID and Security-ID OTP for device authentication and traceability. Use Value: Erase-suspend capability allows concurrent log writes and real-time display updates without interrupting diagnostic acquisition. |
Use Scenario: Retaining user preferences, radio presets, and adaptive audio profiles across ignition cycles in automotive head units. IC Role / Device Role / Timing Role: Low-power configuration store using Auto Low Power mode (3 µA standby) to minimize battery drain during vehicle sleep. Use Value: Uniform 32 KWord block architecture simplifies wear-leveling firmware design and guarantees consistent 18 ms erase performance over lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-70-5C-EKE | 70 ns read access, 48-ball TFBGA only, no RST# pin, lacks Erase-Suspend | Higher-speed read but no hardware reset or suspend capability - unsuitable for safety-critical boot contexts requiring guaranteed recovery | Select only if board layout supports TFBGA and system firmware handles reset externally |
| MX29LV640ETTI-90G | Same 90 ns speed, 48-TSOP, but uses older CFI-compatible command set; no Write-Buffer or Security-ID OTP | Lacks 16-word write buffer and 128-bit ID - increases firmware update time and removes device-level authentication capability | Acceptable for cost-sensitive legacy designs where security and programming speed are secondary |
Compared with SST38VF6401-90-5C-EKE-T, the SST39VF6401B offers faster read but sacrifices boot integrity features, while the MX29LV640ETTI retains package compatibility but omits modern productivity enhancements like write buffering and secure identity - making SST38VF6401-90-5C-EKE-T optimal for new designs requiring robustness and field-upgrade efficiency.
Availability
SST38VF6401-90-5C-EKE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot memory, and medical diagnostic HMI storage requiring stable component supply across multi-year production programs.
Supply support for SST38VF6401-90-5C-EKE-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, with emphasis on reliability, longevity, and embedded system integration.
The SST38VF6401-90-5C-EKE-T belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) family, designed specifically for high-reliability, low-voltage embedded applications demanding fast program/erase, hardware security, and long-term data retention.
FAQ
What is the exact memory organization of the SST38VF6401-90-5C-EKE-T?
The SST38VF6401-90-5C-EKE-T is organized as 4M words × 16 bits (64 Mbit total), with 128 sectors of 4 KWords each and 128 blocks of 32 KWords each. Block B0 is the top boot block, protected by WP# when grounded. This structure is confirmed in Table 2 of DS20005015D for the SST38VF6401 variant specifically.
Does the SST38VF6401-90-5C-EKE-T support hardware reset, and how is it implemented?
Yes, the SST38VF6401-90-5C-EKE-T includes an active-low hardware reset pin (RST#) that forces the device into Read mode and clears any pending program or erase operations. This is distinct from software reset commands and is documented in Table 1 (Pin Description) and Figure 1 (Functional Block Diagram) of the official datasheet.
How does the Write-Buffer Programming feature improve firmware update performance in the SST38VF6401-90-5C-EKE-T?
The SST38VF6401-90-5C-EKE-T supports a 16-word Write Buffer, reducing effective programming time to 1.75 µs per word versus 7 µs for single-word writes. This cuts total update latency by over 75% for contiguous code patches, as verified in the "Write-Buffer Programming" section (pages 10–11) of DS20005015D.
What protection mechanisms prevent accidental erasure of boot code in the SST38VF6401-90-5C-EKE-T?
The SST38VF6401-90-5C-EKE-T implements three-tiered protection: (1) hardware WP# pin locks Block B0 when low; (2) volatile/non-volatile block locking (VPB/NVPB); and (3) software password protection. These are explicitly defined for SST38VF6401 in Tables 2 and 6, and Section "Protection and Security Features".
Is the SST38VF6401-90-5C-EKE-T compatible with standard x16 flash controllers and JEDEC command sets?
Yes, the SST38VF6401-90-5C-EKE-T conforms fully to JEDEC standard pinouts and command sets for x16 flash memories, including standard Read, Word-Program, Sector-Erase (50H), Block-Erase (30H), and Chip-Erase (10H) sequences. This interoperability is stated on page 1 and confirmed in Section "JEDEC Standard" of DS20005015D.
SST38VF6401-90-5C-EKE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
SST38VF6401-90-5C-EKE-T FAQ
1.How can I place an order for SST38VF6401-90-5C-EKE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6401-90-5C-EKE-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 SST38VF6401-90-5C-EKE-T reliable?
The price and inventory of SST38VF6401-90-5C-EKE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6401-90-5C-EKE-T is usually 5 days.
3.What payment methods are accepted for SST38VF6401-90-5C-EKE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6401-90-5C-EKE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6401-90-5C-EKE-T?
SST38VF6401-90-5C-EKE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6401-90-5C-EKE-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 SST38VF6401-90-5C-EKE-T?
For technical support, including SST38VF6401-90-5C-EKE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6401-90-5C-EKE-T requirements.
6.How does Aetrix verify that SST38VF6401-90-5C-EKE-T is sourced from the original manufacturer or authorized distributors?
All SST38VF6401-90-5C-EKE-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 SST38VF6401-90-5C-EKE-T meets industry standards.
7.What is the process for return or replacement of SST38VF6401-90-5C-EKE-T?
All SST38VF6401-90-5C-EKE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6401-90-5C-EKE-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 SST38VF6401-90-5C-EKE-T part is unused and in its original packaging.
Return procedure for SST38VF6401-90-5C-EKE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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