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Microchip Technology SST39VF800A-70-4I-EKE
- Part No.:
- SST39VF800A-70-4I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF800A-70-4I-EKE.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:240
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Product details
Overview
SST39VF800A-70-4I-EKE from Microchip Technology is an 8 Mbit (512K × 16) CMOS Multi-Purpose Flash memory IC using SuperFlash technology, operating at 2.7–3.6 V with 70 ns read access time and JEDEC-standard x16 asynchronous interface. It delivers uniform 2 KWord sector and 32 KWord block erase, 14 µs word-program time, and is qualified for industrial temperature range (–40°C to +85°C), commonly used in firmware storage for embedded controllers and network boot loaders.
For engineers reviewing the SST39VF800A-70-4I-EKE datasheet, SST39VF800A-70-4I-EKE pinout, SST39VF800A-70-4I-EKE application, or SST39VF800A-70-4I-EKE equivalent, key selection criteria include its 2.7–3.6 V single-supply operation, 70 ns read timing, industrial-grade temperature rating, TSOP-48 package compatibility, and support for Software Data Protection and CFI query mode.
Technical Context
The SST39VF800A-70-4I-EKE implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count and superior endurance (100,000 cycles). Its command-set follows JEDEC standard pinouts and protocol, supporting Word-Program, Sector-Erase (30H), Block-Erase (50H), Chip-Erase (10H), and Software ID/CFI Query (90H/98H) via six-byte sequences.
It uses dual status detection-Data# Polling (DQ7) and Toggle Bit (DQ6)-for end-of-write verification, with valid polling enabled after the rising edge of the fourth WE#/CE# pulse for programming and sixth for erasing. Hardware protection includes noise/glitch immunity (<5 ns pulses ignored), VDD power-up/down detection (<1.5 V inhibits write), and write-inhibit mode via OE#, CE#, or WE# control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16), providing 1 MB of nonvolatile storage for firmware or configuration data |
| Read Access Time | 70 ns - determines maximum bus clock rate for reliable read operations in legacy parallel interfaces |
| Supply Voltage | 2.7–3.6 V - enables direct integration into 3.3 V systems without level-shifting or auxiliary regulators |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over product lifetime without wear-out risk |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage applications |
| Operating Temperature | –40°C to +85°C - certified for industrial environments including factory automation and outdoor telecom equipment |
| Word-Program Time | 14 µs typical - enables fast incremental code patching and runtime parameter updates |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | A0–A17 used for 512K × 16 addressing; A18 is MSB for SST39VF800A and must be driven per JEDEC command sequence |
| 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 (3 µA) when high |
| OE# | Output Enable | Active-low output gate; controls data bus visibility during reads only |
| WE# | Write Enable | Active-low control for all write operations; latches address/data on falling/rising edges per JEDEC timing |
| VDD | Power Supply | 2.7–3.6 V supply; internal VPP generation eliminates need for external high-voltage programming source |
| VSS | Ground | Two dedicated ground pins (pins 23 and 48) reduce noise coupling in high-speed parallel bus operation |
| NC | No Connection | Pins 9, 10, 12–16, 19, 20, 22, 24, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47 - electrically isolated, must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide injector enables fixed 14 µs program and 18 ms erase times across full lifecycle |
| Uniform Erase Architecture | 256 sectors (4 KB each) and 16 blocks (64 KB each) allow granular firmware partitioning and recovery |
| JEDEC-Compliant Interface | Standard x16 asynchronous pinout and command set ensure drop-in compatibility with legacy flash-based designs |
| Software Data Protection (SDP) | Three-byte unlock sequence required before programming; six-byte sequence for all erase commands prevents accidental corruption |
| CFI Query Support | Enables automatic identification of density, timing, and geometry parameters by host bootloader or flash programmer |
| Industrial Temperature Range | –40°C to +85°C operation validated per Microchip's industrial qualification standards for extended reliability |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Code |
|---|---|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers deployed in factory-floor environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile parallel-boot memory mapped to CPU address space; provides 70 ns read access for deterministic boot latency. Use Value: Industrial temperature rating (–40°C to +85°C) and 100,000-cycle endurance ensure reliable field updates without hardware replacement. |
Use Scenario: Holding boot loader and initial OS image in enterprise-grade routers requiring secure, field-upgradable firmware. IC Role / Device Role / Timing Role: Primary x16 flash memory accessed during cold boot; supports CFI query for auto-detection and SDP for authenticated update workflows. Use Value: Software Data Protection and toggle-bit polling enable robust, interruptible firmware upgrades over management interfaces. |
| Medical Device Configuration Memory | Automotive Infotainment System BIOS |
Use Scenario: Retaining calibration data, user preferences, and safety-critical configuration parameters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-power (3 µA standby) nonvolatile storage interfaced to microcontroller via parallel bus; retains data >100 years. Use Value: Greater-than-100-year data retention and RoHS-compliant packaging meet IEC 60601-1 long-life and environmental requirements. |
Use Scenario: Storing BIOS and boot-time drivers in automotive head units where vibration, thermal cycling, and EMI resilience are critical. IC Role / Device Role / Timing Role: JEDEC-standard flash memory with hardware write-inhibit and glitch immunity for robust operation in noisy vehicle electrical systems. Use Value: Noise/glitch protection (<5 ns pulse rejection) and VDD power-up detection prevent spurious writes during engine cranking transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF800A-70-4C-EKE | Commercial temperature grade (0°C to +70°C); identical electrical specs and pinout | Limited to climate-controlled indoor electronics; not qualified for industrial or automotive under-hood use | Select only if system ambient stays within 0–70°C and cost sensitivity outweighs long-term reliability margin |
| MX29LV800CTTI-70G | Same 8 Mbit x16 density and 70 ns access, but uses different command set and lacks CFI support; requires modified driver software | Requires firmware adaptation for erase/write sequences; no automatic geometry detection | Choose only when existing design already uses Macronix-compatible drivers and board layout accommodates same TSOP-48 footprint |
Compared with SST39VF800A-70-4I-EKE, the -4C-EKE variant sacrifices industrial temperature capability for lower cost, while the MX29LV800CTTI-70G demands software requalification due to non-JEDEC command differences-neither offers drop-in replacement without validation.
Availability
SST39VF800A-70-4I-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot code, and medical device configuration memory requiring stable component supply across multi-year production cycles.
Supply support for SST39VF800A-70-4I-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, acquired Silicon Storage Technology (SST) in 2010 to expand its nonvolatile memory portfolio.
The SST39VF series belongs to Microchip's legacy parallel flash product line, designed specifically for cost-sensitive, high-reliability embedded systems requiring JEDEC-standard x16 interface, industrial temperature operation, and robust firmware update capabilities.
FAQ
What is the exact memory organization of the SST39VF800A-70-4I-EKE?
The SST39VF800A-70-4I-EKE is organized as 512K words × 16 bits, totaling 8 Mbit (1,048,576 bytes). This configuration maps directly to a 19-bit address bus (A0–A18), with A18 serving as the most significant address bit for sector/block selection in command sequences. The device supports uniform 2 KWord sectors (256 total) and 32 KWord blocks (16 total), as confirmed in Table 9 of DS25001A.
Does the SST39VF800A-70-4I-EKE require an external VPP voltage for programming?
No, the SST39VF800A-70-4I-EKE does not require an external VPP voltage. It features internal VPP generation powered solely by the 2.7–3.6 V VDD supply, eliminating the need for high-voltage programming circuitry. This is explicitly stated in the "Automatic Write Timing" feature list and confirmed in the DC Operating Characteristics table, where VPP min/max are both listed as 00H (no VPP pin).
How is write completion detected on the SST39VF800A-70-4I-EKE?
Write completion on the SST39VF800A-70-4I-EKE is detected using two software methods: Data# Polling (DQ7) and Toggle Bit (DQ6). DQ7 returns complemented data during programming/erasing and true data upon completion; DQ6 toggles between 0 and 1 during the operation and stabilizes afterward. Both are valid after the rising edge of the fourth WE#/CE# pulse for programming and sixth for erasing, per DS25001A Section 7.
Is the SST39VF800A-70-4I-EKE pin-compatible with the SST39LF800A-70-4I-EKE?
Yes, the SST39VF800A-70-4I-EKE is pin-compatible with the SST39LF800A-70-4I-EKE in the same TSOP-48 package, sharing identical pin assignments and JEDEC-standard x16 interface. However, they differ in supply voltage range (2.7–3.6 V vs. 3.0–3.6 V) and read access time (70 ns vs. 55 ns), so substitution requires validation of system VDD stability and timing margins.
What package options are available for the SST39VF800A-70-4I-EKE?
The SST39VF800A-70-4I-EKE is offered exclusively in the 48-lead TSOP (12 mm × 20 mm) package, as indicated by the "EKE" suffix and confirmed in the "Packages Available" section of DS25001A. Other variants in the VF800A family support TFBGA, WFBGA, and XFLGA, but the -4I-EKE designation specifically denotes the industrial-grade TSOP version.
SST39VF800A-70-4I-EKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- 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:
- 8Mbit
- Memory Organization:
- 512K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20µs
- 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-TSOP
SST39VF800A-70-4I-EKE FAQ
1.How can I place an order for SST39VF800A-70-4I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF800A-70-4I-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 SST39VF800A-70-4I-EKE reliable?
The price and inventory of SST39VF800A-70-4I-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF800A-70-4I-EKE is usually 5 days.
3.What payment methods are accepted for SST39VF800A-70-4I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF800A-70-4I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF800A-70-4I-EKE?
SST39VF800A-70-4I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF800A-70-4I-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 SST39VF800A-70-4I-EKE?
For technical support, including SST39VF800A-70-4I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF800A-70-4I-EKE requirements.
6.How does Aetrix verify that SST39VF800A-70-4I-EKE is sourced from the original manufacturer or authorized distributors?
All SST39VF800A-70-4I-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 SST39VF800A-70-4I-EKE meets industry standards.
7.What is the process for return or replacement of SST39VF800A-70-4I-EKE?
All SST39VF800A-70-4I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF800A-70-4I-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 SST39VF800A-70-4I-EKE part is unused and in its original packaging.
Return procedure for SST39VF800A-70-4I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39VF800A-70-4I-EKE Tags
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