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Microchip Technology SST39VF800A-70-4C-B3KE
- Part No.:
- SST39VF800A-70-4C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF800A-70-4C-B3KE.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,292
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Product details
Overview
SST39VF800A-70-4C-B3KE from Microchip Technology is an 8 Mbit (512K x 16) CMOS Multi-Purpose Flash memory IC using SuperFlash technology, supporting single-supply 2.7–3.6V read/write operations, 70 ns read access time, sector/block erase, and JEDEC-standard x16 asynchronous interface. It serves as nonvolatile program/data storage in embedded controllers, industrial HMIs, and legacy BIOS modules.
For engineers reviewing the SST39VF800A-70-4C-B3KE datasheet, SST39VF800A-70-4C-B3KE pinout, SST39VF800A-70-4C-B3KE application, or SST39VF800A-70-4C-B3KE equivalent, key selection criteria include its 2.7V minimum VDD operation, 256 uniform 4 KWord sectors, 16 uniform 64 KWord blocks, 100,000-cycle endurance, and TSOP-48 package compatibility with legacy x16 memory buses.
Technical Context
The SST39VF800A-70-4C-B3KE implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, enabling fixed erase/program timing independent of cycle count. It supports three software-controlled erase modes-sector (2 KWord), block (64 KWord), and chip-with command sequences compliant with JEDEC standard pinouts and CFI query capability.
Write operations use internal VPP generation and support end-of-write detection via Toggle Bit (DQ6) and Data# Polling (DQ7). Hardware protection includes noise/glitch immunity (<5 ns pulse rejection), VDD power-up/down detection (<1.5V inhibit), and write-inhibit mode via CE#, OE#, or WE# control states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 bits), providing 1 MB of nonvolatile storage for firmware or configuration data |
| Read Access Time | 70 ns maximum - enables direct connection to 14 MHz microcontrollers without wait states |
| Supply Voltage | 2.7–3.6V - supports battery-backed or low-voltage industrial systems where 3.3V rails may dip below 3.0V |
| Endurance | 100,000 program/erase cycles - sufficient for field-upgradable firmware with infrequent updates |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage applications |
| Erase Architecture | 256 uniform 4 KWord sectors + 16 uniform 64 KWord blocks - enables granular firmware partitioning and wear leveling |
| Program Time | 14 µs per word - reduces total rewrite time to ~8 seconds for full chip, critical for fast factory programming |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, surface-mountable with standard reflow profile (260°C/10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | A0–A17 used; A18 selects top 512K-word block (SST39VF800A-specific), enabling full 8 Mbit addressing |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus with latched inputs and tri-state outputs controlled by CE# and OE# |
| CE# | Chip Enable | Active-low device select; high state places device in standby (3 µA) |
| OE# | Output Enable | Active-low output gate; allows data read without deselecting chip |
| WE# | Write Enable | Controls latching of address/data during program/erase; initiates internal timing sequences |
| VDD | Power Supply | 2.7–3.6V supply; powers core logic and SuperFlash array with internal charge pump for erase/program |
| VSS | Ground | Two dedicated ground pins (pins 23 and 48) reduce noise coupling in high-speed reads |
| NC | No Connect | Pins 9, 10, 12–16, 19, 20, 22, 24, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47 - electrically isolated, must be left floating |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash cell architecture | Split-gate design with thick-oxide injector delivers stable 70 ns read timing and eliminates cycle-dependent timing drift |
| Uniform sector/block erase | 256 × 4 KWord sectors and 16 × 64 KWord blocks allow deterministic firmware update partitioning without over-erasure |
| Software Data Protection (SDP) | JEDEC-compliant 3-byte (program) and 6-byte (erase) command sequences prevent accidental writes during power transitions |
| CFI Query support | Enables host system auto-detection of geometry, timing, and command set - critical for generic flash drivers |
| Toggle Bit / Data# Polling | DQ6 toggling and DQ7 complement behavior provide real-time, non-intrusive write completion status without polling overhead |
Applications
| Industrial HMI Firmware Storage | Legacy PC BIOS/UEFI Module |
|---|---|
Use Scenario: Storing boot code and GUI assets in panel-mounted human-machine interface controllers operating in -40°C to +85°C environments. IC Role / Device Role / Timing Role: Nonvolatile x16 memory mapped to microcontroller address space; provides 70 ns read access for deterministic UI response. Use Value: 2.7V minimum VDD operation ensures reliable boot under brown-out conditions; 100-year retention avoids field recalibration. | Use Scenario: Replacing obsolete 8 Mbit flash in desktop/server motherboard BIOS chips requiring JEDEC-compatible command sets. IC Role / Device Role / Timing Role: Drop-in replacement for legacy x16 flash; uses identical TSOP-48 footprint and pinout per JEDEC standard. Use Value: Sector-erase granularity enables partial BIOS updates without full chip reprogramming; CFI support maintains compatibility with existing BIOS flash utilities. |
| Embedded Controller Configuration | Medical Device Calibration Data |
Use Scenario: Holding runtime-configurable parameters (e.g., sensor thresholds, PID gains) in programmable logic controllers with infrequent field updates. IC Role / Device Role / Timing Role: EEPROM-replacement storage accessed via parallel bus; programmed via microcontroller GPIO-driven command sequences. Use Value: 100,000-cycle endurance exceeds typical PLC lifetime requirements; hardware/software write protection prevents corruption during power loss. | Use Scenario: Storing factory-calibrated sensor offsets and linearization coefficients in portable diagnostic equipment requiring long-term data integrity. IC Role / Device Role / Timing Role: Secure nonvolatile storage accessed only during calibration or service mode; isolated from main application bus. Use Value: Greater than 100-year data retention meets ISO 13485 medical device archival requirements; 2.7V operation supports coin-cell backup during main power failure. |
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 | Same die, but in 48-ball TFBGA (6 mm × 8 mm) package - smaller footprint, different thermal and routing constraints | Used where board space is constrained and BGA assembly is available; not compatible with TSOP socketed designs | Select when miniaturization outweighs through-hole or socket compatibility needs |
| MX29LV800CTTI-70G | 8 Mbit x16 flash with 70 ns access, but requires 3.0–3.6V only; lacks CFI support and uses different command set (non-JEDEC standard) | Suitable for cost-sensitive consumer electronics where firmware is fixed and driver customization is acceptable | Choose only if existing software stack already supports Macronix command protocol and voltage margin permits |
Compared with SST39VF800A-70-4C-B3KE, the TFBGA variant offers space savings at the cost of rework complexity, while the Macronix part trades JEDEC interoperability and low-voltage flexibility for lower unit cost in closed-system deployments.
Availability
SST39VF800A-70-4C-B3KE is available at Aetrix Electronics and suitable for industrial HMI firmware storage, legacy BIOS module replacement, and embedded controller configuration requiring stable component supply across extended temperature and voltage ranges.
Supply support for SST39VF800A-70-4C-B3KE 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 acquisition of Silicon Storage Technology (SST) in 2010.
The SST39VF800A-70-4C-B3KE belongs to the SST39VFxxxA family of Multi-Purpose Flash devices, designed specifically for cost-effective, low-voltage, high-reliability nonvolatile storage in industrial, computing, and communications equipment.
FAQ
What is the guaranteed minimum supply voltage for SST39VF800A-70-4C-B3KE during program/erase operations?
The SST39VF800A-70-4C-B3KE guarantees full functionality-including program and erase-at VDD as low as 2.7V. This is explicitly specified in the Operating Range table for SST39VF-series devices and distinguishes it from the SST39LF variant, which requires 3.0V minimum. The 2.7V capability enables robust operation in battery-powered or brown-out-prone systems where the SST39VF800A-70-4C-B3KE remains functional while other flash parts fail.
Does SST39VF800A-70-4C-B3KE support Common Flash Interface (CFI) for automatic driver detection?
Yes, the SST39VF800A-70-4C-B3KE includes full CFI Query mode support. Writing the 3-byte sequence (5555H/AAH → 2AAAH/55H → 5555H/98H) enters CFI mode, allowing the host to read standardized geometry, timing, and command-set descriptors from predefined addresses. This enables generic flash drivers to auto-configure without hard-coded parameters-critical for scalable firmware development across multiple SST39VF800A-70-4C-B3KE-based platforms.
How many erase sectors and blocks does SST39VF800A-70-4C-B3KE provide, and what are their sizes?
The SST39VF800A-70-4C-B3KE contains 256 uniform sectors of 4 KWords (8 KB each) and 16 uniform blocks of 64 KWords (128 KB each). These values are confirmed in Table 9 (Device Geometry Information) of the datasheet, where y=255 → 256 sectors and z=16 → 4 KWord/sector, and y=15 → 16 blocks and z=256 → 64 KWord/block. This architecture enables precise firmware partitioning-e.g., dedicating one 128 KB block to bootloader and others to application images.
What hardware write-protection mechanisms does SST39VF800A-70-4C-B3KE implement?
The SST39VF800A-70-4C-B3KE implements three hardware write-protection mechanisms: (1) noise/glitch protection rejecting WE# or CE# pulses shorter than 5 ns; (2) VDD power-up/down detection inhibiting writes when VDD < 1.5V; and (3) write-inhibit mode activated by any of OE# low, CE# high, or WE# high. These features ensure the SST39VF800A-70-4C-B3KE remains immune to spurious writes during power sequencing-a critical requirement for fail-safe embedded systems.
Is SST39VF800A-70-4C-B3KE pin-compatible with SST39LF800A-70-4C-B3KE?
No, SST39VF800A-70-4C-B3KE is not pin-compatible with SST39LF800A-70-4C-B3KE despite identical packaging and pin count. While both share the same TSOP-48 footprint and JEDEC x16 pinout, the SST39VF800A-70-4C-B3KE uses A18 as the most significant address bit (AMS), whereas the SST39LF800A uses A17 as AMS. This difference alters address decoding behavior and invalidates direct substitution without hardware or firmware revision.
SST39VF800A-70-4C-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA (6x8)
SST39VF800A-70-4C-B3KE FAQ
1.How can I place an order for SST39VF800A-70-4C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF800A-70-4C-B3KE 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-70-4C-B3KE reliable?
The price and inventory of SST39VF800A-70-4C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF800A-70-4C-B3KE is usually 5 days.
3.What payment methods are accepted for SST39VF800A-70-4C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF800A-70-4C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF800A-70-4C-B3KE?
SST39VF800A-70-4C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF800A-70-4C-B3KE 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-70-4C-B3KE?
For technical support, including SST39VF800A-70-4C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF800A-70-4C-B3KE requirements.
6.How does Aetrix verify that SST39VF800A-70-4C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST39VF800A-70-4C-B3KE 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-70-4C-B3KE meets industry standards.
7.What is the process for return or replacement of SST39VF800A-70-4C-B3KE?
All SST39VF800A-70-4C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF800A-70-4C-B3KE, 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-70-4C-B3KE part is unused and in its original packaging.
Return procedure for SST39VF800A-70-4C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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