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Microchip Technology SST38VF6404B-70-5I-CD
- Part No.:
- SST38VF6404B-70-5I-CD
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6404B-70-5I-CD.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,931
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Product details
Overview
SST38VF6404B-70-5I-CD from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, designed for nonvolatile program/data storage in embedded systems. It operates at 2.7–3.6 V, delivers 70 ns read access time, supports 100,000 erase/program cycles, and retains data >100 years - deployed in industrial controllers requiring field-upgradable firmware.
For engineers reviewing the SST38VF6404B-70-5I-CD datasheet, SST38VF6404B-70-5I-CD pinout, SST38VF6404B-70-5I-CD application, or SST38VF6404B-70-5I-CD equivalent, this page provides verified package mapping (48-lead TSOP), boot-block protection configuration, Write-Buffer Programming timing (1.75 μs/word), RY/BY# status signaling, and JEDEC-compliant x16 interface behavior.
Technical Context
The SST38VF6404B-70-5I-CD 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 and non-uniform 4 KWord boot-block erase (B127–B134), with hardware WP# and software-controlled individual block protection.
It features dual write methods: standard Word-Program (7 μs typical) and 16-word Write-Buffer Programming (1.75 μs/word typical), plus Page Read (25 ns access, 8-word buffer). Status detection uses DQ7 Data# Polling, DQ6/DQ2 Toggle Bits, and active-low RY/BY# output - all compliant with JEDEC-standard flash command sets and CFI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), supporting 22-bit addressing (A0–A21) |
| Read Access Time | 70 ns max - defines minimum clock-to-data delay in synchronous bus interfaces |
| Page Read Speed | 25 ns per word for 8-word page - enables burst reads without address re-latching |
| Write-Buffer Capacity | 16-word buffer - reduces host CPU overhead during firmware updates |
| Erase Endurance | 100,000 cycles minimum - ensures reliability across repeated field upgrades |
| Data Retention | Greater than 100 years - qualifies for long-lifecycle industrial deployments |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic rails and brown-out tolerant systems |
| Standby Current | 5 μA typical - enables ultra-low-power sleep modes in battery-backed applications |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus; A21–A15 select 32 KWord blocks, A2–A0 toggle within 8-word Page Read |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; latched internally during writes, tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; device enters standby (5 μA) when high |
| OE# | Output Enable | Active-low output gate; controls data bus visibility independent of CE# |
| WE# | Write Enable | Controls latching of addresses/data and initiates command sequences |
| WP# | Write Protect | Hardware boot-block lock; grounded to protect B127–B134 (4 KWord boot sectors) |
| RST# | Reset | Hardware reset to Read mode; required after power-up or error recovery |
| RY/BY# | Ready/Busy | Active-low open-drain status signal; indicates active Program/Erase operations |
| VDD | Power Supply | 2.7–3.6 V supply; powers core and I/O; internal VPP generation eliminates external charge pump |
| VSS | Ground | Reference return path for all signals and power domains |
| NC | No Connection | Unbonded pin; must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cells with fixed erase/program times - eliminates system-level de-rating over lifetime |
| Write-Buffer Programming | 16-word buffer with 1.75 μs/word effective programming - cuts firmware update time by >70% vs. single-word writes |
| Erase-Suspend/Resume | Allows read/program in non-erasing blocks during background erase - enables real-time interrupt handling |
| Boot Block Protection | Hardware WP# + software-configurable 4 KWord sectors (B127–B134) - prevents accidental bootloader corruption |
| CFI Compliance | JEDEC-standard Common Flash Interface - enables plug-and-play integration with generic flash drivers |
| 128-bit Unique ID | Factory-programmed serial number - supports secure device authentication and traceability |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast Page Read (25 ns) for deterministic instruction fetch and Write-Buffer Programming for safe field updates. Use Value: 100,000-cycle endurance and >100-year data retention ensure multi-decade deployment without memory replacement. |
Use Scenario: Holding calibrated sensor parameters and regulatory-compliant device configurations in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, protected configuration store using hardware WP# and irreversible block locking on boot sectors. Use Value: 128-bit Unique ID enables per-unit traceability; CFI compliance simplifies FDA audit-ready driver validation. |
| Automotive Infotainment Bootloader | Networking Equipment Image Storage |
Use Scenario: Hosting signed bootloader code in automotive head units requiring AEC-Q100-aligned reliability and secure boot. IC Role / Device Role / Timing Role: Boot-block protected memory with RY/BY# status signaling for fail-safe firmware validation during cold start. Use Value: 70 ns read access meets real-time boot timing budgets; Auto Low Power mode (5 μA) minimizes standby drain. |
Use Scenario: Storing dual firmware images and FPGA configuration bitstreams in enterprise switches and routers. IC Role / Device Role / Timing Role: High-reliability storage with Erase-Suspend capability - allows live traffic forwarding while background image update occurs. Use Value: 48-ball TFBGA option (pin-compatible with TSOP) enables high-density PCB layouts; JEDEC pinout ensures drop-in compatibility with legacy designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6402B-70-5I-CD | Same 64 Mbit x16 density, but uniform 32 KWord block architecture (no 4 KWord boot sectors) | Lacks non-uniform boot-block erase; unsuitable where B127–B134 sector-level protection is required | Select only if full uniform block layout suffices and boot-sector granularity is unnecessary |
| MX29LV640ETTI-70G | 64 Mbit x16, 70 ns access, but uses older floating-gate technology - slower erase (100 ms chip-erase), lower endurance (100K vs. same) | Higher energy per erase/program cycle; no Write-Buffer Programming or Erase-Suspend | Acceptable for cost-sensitive, low-update-frequency applications where advanced features are unused |
Compared with SST38VF6404B-70-5I-CD, SST39VF6402B-70-5I-CD omits non-uniform boot-block support, while MX29LV640ETTI-70G lacks SuperFlash efficiency and real-time suspend capabilities - making SST38VF6404B-70-5I-CD uniquely suited for field-upgradable, safety-critical embedded systems.
Availability
SST38VF6404B-70-5I-CD is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, and automotive infotainment systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SST38VF6404B-70-5I-CD 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, low-power design, and embedded control.
The SST38VF6404B-70-5I-CD belongs to Microchip's Advanced MPF+ Flash family, engineered specifically for high-endurance, low-voltage embedded applications demanding secure, field-upgradable nonvolatile storage.
FAQ
What is the boot-block configuration of the SST38VF6404B-70-5I-CD?
The SST38VF6404B-70-5I-CD implements a non-uniform boot-block architecture where the top 8 KWord region spans four 4 KWord sectors (B127–B134). These sectors support individual VPB/NVPB protection and are hardware-locked via WP# when grounded. This structure enables fine-grained bootloader security not found in uniform-block variants like SST39VF6402B-70-5I-CD.
Does the SST38VF6404B-70-5I-CD support true 3.3 V operation?
Yes, the SST38VF6404B-70-5I-CD is fully specified for 2.7–3.6 V operation, with all timing (70 ns read, 7 μs word-program) and functionality (RY/BY#, Write-Buffer, Erase-Suspend) guaranteed across this range. It requires no external VPP generator - internal charge pump delivers programming voltage, making it a true single-supply 3.3 V flash solution.
How does Write-Buffer Programming improve firmware update performance in the SST38VF6404B-70-5I-CD?
Write-Buffer Programming in the SST38VF6404B-70-5I-CD loads up to 16 words into an internal buffer before committing them to flash, achieving 1.75 μs/word effective programming time - over 4× faster than standard 7 μs word-program. This reduces host CPU wait states and enables deterministic update windows critical in real-time systems.
Can the SST38VF6404B-70-5I-CD be used in automotive applications?
The SST38VF6404B-70-5I-CD carries Industrial (-40°C to +85°C) temperature rating and is qualified per AEC-Q100 stress test requirements when ordered in automotive-grade variants (e.g., SST38VF6404B-70-5I-CDE). Its 100,000-cycle endurance, >100-year retention, and hardware boot-block protection meet functional safety needs for automotive bootloader storage.
What status signaling methods does the SST38VF6404B-70-5I-CD provide during Program/Erase operations?
The SST38VF6404B-70-5I-CD offers three concurrent status mechanisms: active-low RY/BY# pin output, DQ7 Data# Polling (complement-to-data), and DQ6/DQ2 Toggle Bits. All are valid after defined WE#/CE# edges and enable flexible polling strategies - RY/BY# for hardware interrupt-driven flow, DQ7/DQ6 for software polling without additional pins.
SST38VF6404B-70-5I-CD 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:
- 70 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)
SST38VF6404B-70-5I-CD FAQ
1.How can I place an order for SST38VF6404B-70-5I-CD through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6404B-70-5I-CD 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 SST38VF6404B-70-5I-CD reliable?
The price and inventory of SST38VF6404B-70-5I-CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6404B-70-5I-CD is usually 5 days.
3.What payment methods are accepted for SST38VF6404B-70-5I-CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6404B-70-5I-CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6404B-70-5I-CD?
SST38VF6404B-70-5I-CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6404B-70-5I-CD 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 SST38VF6404B-70-5I-CD?
For technical support, including SST38VF6404B-70-5I-CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6404B-70-5I-CD requirements.
6.How does Aetrix verify that SST38VF6404B-70-5I-CD is sourced from the original manufacturer or authorized distributors?
All SST38VF6404B-70-5I-CD 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 SST38VF6404B-70-5I-CD meets industry standards.
7.What is the process for return or replacement of SST38VF6404B-70-5I-CD?
All SST38VF6404B-70-5I-CD units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6404B-70-5I-CD, 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 SST38VF6404B-70-5I-CD part is unused and in its original packaging.
Return procedure for SST38VF6404B-70-5I-CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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