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Microchip Technology SST39VF802C-70-4I-EKE
- Part No.:
- SST39VF802C-70-4I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF802C-70-4I-EKE.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:710
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Product details
Overview
SST39VF802C-70-4I-EKE from Microchip Technology is a 8 Mbit (512K × 16) CMOS Multi-Purpose Flash Plus memory IC with SuperFlash® technology, designed for embedded firmware and configuration storage in industrial control, networking equipment, and legacy system upgrades. It operates from 2.7–3.6V, delivers 70 ns read access time, supports hardware block protection on the top 8 KWord boot sector, and features erase-suspend/resume capability.
For engineers reviewing the SST39VF802C-70-4I-EKE datasheet, SST39VF802C-70-4I-EKE pinout, SST39VF802C-70-4I-EKE application, or SST39VF802C-70-4I-EKE equivalent, this page provides verified technical context, JEDEC-compliant x16 interface details, boot-block protection mapping, and real-world flash replacement guidance for legacy 48-pin TSOP designs.
Technical Context
This device implements a split-gate SuperFlash® cell architecture with thick-oxide tunneling injector, enabling fixed 7 µs word-program and 18 ms sector/block-erase times independent of cycle count. It uses standard JEDEC x16 flash command sets-including six-byte sequences for sector/block/chip erase-and supports both Data# Polling (DQ7) and Toggle Bit (DQ6/DQ2) status detection.
The SST39VF802C-70-4I-EKE integrates hardware write protection via WP# for top-boot block (7E000H–7FFFFH), RST# for hardware reset to read mode, and RY/BY# open-drain ready/busy signaling requiring external 10–100 kΩ pull-up. Its Auto Low Power mode reduces active read current from 5 mA to 3 µA after valid access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16), directly replaces legacy 512K×16 NOR flash in socketed designs |
| Read Access Time | 70 ns - enables compatibility with 14 MHz bus timing in legacy microcontroller systems |
| Supply Voltage | 2.7–3.6 V - single-supply operation compatible with 3.3 V logic rails and brown-out tolerant |
| Endurance | 100,000 program/erase cycles - sufficient for field firmware updates over 10+ years |
| Data Retention | >100 years - validated at 25°C; supports long-lifecycle industrial deployments without refresh |
| Boot Block Protection | Top 8 KWord (7E000H–7FFFFH) - prevents accidental overwrite of bootloader code when WP# grounded |
| Erase Architecture | Uniform 2 KWord sectors + flexible blocks (1×8K, 2×4K, 1×16K, 15×32K) - enables granular firmware partitioning |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, standard JEDEC x16 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus; AMS = A18 selects top/bottom boot block during erase operations |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; latched internally during write; tri-state when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write; controls address/data latch timing |
| OE# | Output Enable | Active-low output gate; used with CE# to control data bus visibility during read cycles |
| WE# | Write Enable | Active-low write strobe; falling edge latches address; rising edge latches data/command |
| WP# | Write Protect | Active-low hardware lock for top 8 KWord boot block; floating = unprotected (internal pull-up) |
| RST# | Reset | Active-low hardware reset; forces return to read mode and aborts in-progress erase/program |
| RY/BY# | Ready/Busy# | Open-drain status output; low = busy (erase/program in progress); requires external pull-up |
| VDD | Power Supply | +2.7–3.6 V supply; powers core and I/O; no separate VPP required (internal generation) |
| VSS | Ground | System ground reference; two dedicated pins for noise reduction in high-speed reads |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows reading from non-suspended sectors or programming other blocks mid-erase - critical for real-time firmware update safety |
| Security ID | Factory-programmed 128-bit ID + 128-word user space - enables secure device authentication and traceability in production |
| Auto Low Power Mode | Reduces active read current from 5 mA to 3 µA after access - cuts standby power in always-on embedded nodes |
| JEDEC Standard Compliance | Pinout and command set match industry-standard x16 flash - ensures drop-in replacement without software changes |
| SuperFlash® Reliability | Fixed 7 µs program / 18 ms erase times across full lifecycle - eliminates software de-rating and timing margin erosion |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Code |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile configuration and application code storage with hardware-protected boot sector to prevent corruption during power glitches. Use Value: Top-boot block protection (7E000H–7FFFFH) ensures bootloader integrity; 100-year data retention eliminates field recalibration. |
Use Scenario: Holding boot ROM and diagnostic firmware in enterprise-grade Ethernet switches and routers. IC Role / Device Role / Timing Role: Primary x16 flash memory mapped to CPU address space for fast instruction fetch and in-field firmware patching. Use Value: 70 ns access time meets 14 MHz bus timing; erase-suspend allows concurrent diagnostics and background update. |
| Legacy Medical Device Upgrade | Automotive ECU Configuration |
|
Use Scenario: Replacing obsolete flash in FDA-cleared medical imaging subsystems requiring long-term component availability. IC Role / Device Role / Timing Role: Drop-in replacement for discontinued 512K×16 NOR devices in fixed-form-factor diagnostic modules. Use Value: Identical 48-pin TSOP package and JEDEC command set enable zero-layout-change upgrade; RoHS compliance satisfies regulatory renewal. |
Use Scenario: Storing calibration tables and vehicle-specific configuration parameters in engine control units with extended temperature requirements. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessible via microcontroller's external memory interface under -40°C to +85°C. Use Value: Guaranteed 100,000-cycle endurance supports lifetime recalibration; top-boot protection isolates critical startup routines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF801C-70-4I-EKE | Bottom-boot architecture (00000H–01FFFH protected); identical timing, voltage, and pinout | Used where bootloader resides in lowest memory region instead of top; not interchangeable without firmware address remapping | Select only if existing design uses bottom-boot layout and requires same 70 ns speed grade |
| MX29LV800CTTI-70G | 70 ns access, 3.0–3.6 V, 48-pin TSOP, but uses different command set and lacks erase-suspend/resume | Requires firmware driver modification; no hardware boot-block protection - relies on software locks | Choose only when SuperFlash® features are unnecessary and cost is primary constraint |
Compared with SST39VF802C-70-4I-EKE, the SST39VF801C-70-4I-EKE offers identical performance but inverted boot-block location, while MX29LV800CTTI-70G sacrifices reliability features and command compatibility for lower unit cost - making SST39VF802C-70-4I-EKE optimal for safety-critical or long-lifecycle upgrades.
Availability
SST39VF802C-70-4I-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot code, and legacy medical device upgrades requiring stable component supply and long-term obsolescence management.
Supply support for SST39VF802C-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 acquired Silicon Storage Technology (SST) in 2016 and maintains full support for the SuperFlash® product line, including manufacturing, documentation, and long-term supply assurance.
The SST39VF802C belongs to the Multi-Purpose Flash Plus (MPF+) family, engineered specifically for reliable, low-power, pin-compatible replacement of legacy NOR flash in industrial, networking, and automotive control applications.
FAQ
What is the boot block configuration of SST39VF802C-70-4I-EKE?
The SST39VF802C-70-4I-EKE implements top-boot block protection covering the highest 8 KWord address range (7E000H–7FFFFH). This is hardwired and distinct from the bottom-boot SST39VF801C variant. When WP# is grounded, program and erase operations are blocked in this region - ensuring bootloader code remains intact during field updates. The SST39VF802C-70-4I-EKE datasheet Table 4 confirms this mapping.
Does SST39VF802C-70-4I-EKE require an external VPP voltage?
No, the SST39VF802C-70-4I-EKE does not require an external VPP voltage. It generates all necessary high-voltage programming pulses internally using its on-chip charge pump. Operation is fully supported from a single 2.7–3.6 V supply (VDD), simplifying power design and eliminating external high-voltage circuitry. This is confirmed in the "Features" section and Table 9 of the SST39VF802C-70-4I-EKE datasheet.
How is write completion detected on SST39VF802C-70-4I-EKE?
Write completion on SST39VF802C-70-4I-EKE is detected using three hardware methods: Ready/Busy# (RY/BY#) pin output, Data# Polling (DQ7), and Toggle Bit (DQ6/DQ2). RY/BY# is an open-drain signal requiring external pull-up; DQ7 toggles complement during writes and stabilizes post-completion; DQ6 toggles continuously until operation ends. All are valid per JEDEC standard and documented in SST39VF802C-70-4I-EKE Figure 9–10 and Table 3.
Can SST39VF802C-70-4I-EKE be used in place of SST39VF801C-70-4I-EKE?
No, SST39VF802C-70-4I-EKE cannot be used as a direct replacement for SST39VF801C-70-4I-EKE without firmware and hardware review. While pinout, timing, and voltage are identical, their boot block locations differ: SST39VF802C protects the top 8 KWord (7E000H–7FFFFH), whereas SST39VF801C protects the bottom 8 KWord (00000H–01FFFH). Swapping them risks corrupting bootloader code unless address mapping is adjusted.
What package type is used in SST39VF802C-70-4I-EKE?
The SST39VF802C-70-4I-EKE uses a 48-lead TSOP (Thin Small Outline Package) with 12 mm × 20 mm body size and standard JEDEC MO-142AC footprint. This matches legacy socketed NOR flash designs and is explicitly listed in the "Packages Available" section of the SST39VF802C-70-4I-EKE datasheet. The "-EKE" suffix denotes this TSOP variant.
SST39VF802C-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:
- 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:
- 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-TSOP
SST39VF802C-70-4I-EKE FAQ
1.How can I place an order for SST39VF802C-70-4I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF802C-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 SST39VF802C-70-4I-EKE reliable?
The price and inventory of SST39VF802C-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 SST39VF802C-70-4I-EKE is usually 5 days.
3.What payment methods are accepted for SST39VF802C-70-4I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF802C-70-4I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF802C-70-4I-EKE?
SST39VF802C-70-4I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF802C-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 SST39VF802C-70-4I-EKE?
For technical support, including SST39VF802C-70-4I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF802C-70-4I-EKE requirements.
6.How does Aetrix verify that SST39VF802C-70-4I-EKE is sourced from the original manufacturer or authorized distributors?
All SST39VF802C-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 SST39VF802C-70-4I-EKE meets industry standards.
7.What is the process for return or replacement of SST39VF802C-70-4I-EKE?
All SST39VF802C-70-4I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF802C-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 SST39VF802C-70-4I-EKE part is unused and in its original packaging.
Return procedure for SST39VF802C-70-4I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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