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Microchip Technology SST39LF800A-55-4C-B3KE-T
- Part No.:
- SST39LF800A-55-4C-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39LF800A-55-4C-B3KE-T.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SST39LF800A-55-4C-B3KE-T from Microchip Technology is an 8 Mbit (512K x 16) CMOS Multi-Purpose Flash memory IC using SuperFlash technology, operating at 3.0–3.6V with 55 ns read access time, 100,000 program/erase cycles endurance, and >100 years data retention. It serves as nonvolatile code/data storage in embedded microcontroller systems requiring field-upgradable firmware.
For engineers reviewing the SST39LF800A-55-4C-B3KE-T datasheet, SST39LF800A-55-4C-B3KE-T pinout, SST39LF800A-55-4C-B3KE-T application, or SST39LF800A-55-4C-B3KE-T equivalent, key selection criteria include JEDEC-standard x16 asynchronous interface compatibility, sector/block erase granularity (2 KWord / 32 KWord), toggle-bit/data# polling status detection, and TSOP-48 package suitability for space-constrained industrial PCB layouts.
Technical Context
This device implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, enabling fixed erase/program timing independent of cycle count-unlike conventional flash technologies where timing degrades over endurance life. Its command-set follows JEDEC-standard pinouts and software protocols including CFI Query and Software ID Entry.
It supports three erase modes-sector (2 KWord), block (32 KWord), and chip-wide-with uniform timing: 18 ms typical for sector/block erase and 70 ms for chip erase. Word-program time is 14 µs typical, with automatic internal VPP generation eliminating external high-voltage requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 bits); supports 1 MByte of x16 data storage for boot code or configuration tables |
| Read Access Time | 55 ns max; enables direct execution from flash (XIP) in 14 MHz bus systems without wait states |
| Supply Voltage | 3.0–3.6V only; not compatible with 2.7V operation-distinct from VF-series variants |
| Endurance | 100,000 program/erase cycles; sufficient for firmware update cycles in industrial controllers over 10+ years |
| Data Retention | >100 years at 25°C; validated for long-life deployment in unattended remote equipment |
| Erase Granularity | Uniform 2 KWord sectors (256 sectors) and 32 KWord blocks (16 blocks); enables fine-grained firmware patching |
| Write Detection | Toggle Bit (DQ6) and Data# Polling (DQ7); allows host CPU to poll status without dedicated interrupt lines |
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; A18 = AMS for 8 Mbit addressing (512K × 16 requires 19 address bits) |
| DQ0–DQ15 | Data I/O | x16 bidirectional bus; latched internally during write; tri-state 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 DQ bus tristate; must be low with CE# for valid read |
| WE# | Write Enable | Active-low control for program/erase; latches command sequences on rising/falling edges per JEDEC protocol |
| VDD | Power Supply | 3.0–3.6V only; internal charge pump generates programming voltage-no external VPP required |
| VSS | Ground | Two dedicated ground pins (pins 23 and 46) for noise reduction in high-speed read/write |
| NC | No Connect | Pins 9, 10, 12–15, 18, 20, 21, 22, 24, 25, 27, 28, 30, 31, 33, 34, 36, 37, 39, 40, 42, 43, 44, 45, 47 |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Cell Architecture | Split-gate design with thick-oxide tunneling injector delivers stable 55 ns read timing across full 100k-cycle life |
| Hardware + Software Data Protection | Glitch filtering (<5 ns pulses ignored), VDD power-up/down lockout, and mandatory 3-byte/6-byte JEDEC command sequences prevent accidental writes |
| Fixed Erase/Program Timing | 18 ms sector/block erase and 14 µs word-program times remain constant regardless of accumulated cycles-no system-level derating needed |
| JEDEC-Compliant Interface | Standard x16 pinout and command set (including CFI Query at 5555H/98H) ensures drop-in compatibility with legacy flash controllers |
| Low Power Standby | 3 µA typical current draw in standby mode reduces system quiescent power in battery-backed applications |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing firmware images and calibration parameters in programmable logic controllers deployed in factory automation environments with ambient temperatures up to +70°C. IC Role / Device Role / Timing Role: Nonvolatile x16 code storage with 55 ns read access enabling zero-wait-state execution from flash by the host MCU. Use Value: 100,000-cycle endurance supports quarterly firmware updates over 10+ years; >100-year data retention eliminates recalibration drift concerns. | Use Scenario: Holding device-specific configuration profiles (e.g., sensor gain, alarm thresholds) in portable diagnostic instruments requiring regulatory-compliant long-term data integrity. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage with hardware/software write protection preventing unauthorized modification. Use Value: Toggle-bit polling allows deterministic firmware update sequencing without external status lines-critical for IEC 62304 Class B software verification. |
| Telecom Base Station Boot Loader | Automotive Infotainment System Code Storage |
Use Scenario: Hosting boot loader and recovery image in LTE/5G remote radio units exposed to thermal cycling between –40°C and +85°C (industrial grade variant required). IC Role / Device Role / Timing Role: Primary boot memory mapped into MCU address space; accessed via standard asynchronous SRAM-like interface. Use Value: Uniform 2 KWord sector erase enables atomic firmware patching-reducing risk of bricking during over-the-air updates. | Use Scenario: Storing navigation map data and UI assets in automotive head units where vibration resistance and extended temperature operation are mandatory. IC Role / Device Role / Timing Role: High-reliability code/data storage with AEC-Q100 stress qualification (via Microchip's automotive-grade derivatives). Use Value: 3.0–3.6V supply range matches automotive 3.3V rail stability; 48-pin TSOP provides mechanical robustness against board flexure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF800A-55-4C-B3KE-T | 2.7–3.6V supply range; identical density, timing, and pinout; lower Vmin enables wider input rail tolerance | Preferred in battery-powered or wide-input-range systems where 2.7V brownout must be supported | Select SST39VF800A if system VDD can dip below 3.0V; otherwise SST39LF800A offers tighter 3.0–3.6V regulation margin |
| MX29LV800CTTI-55G | 55 ns access, 8 Mbit x16, 3.0–3.6V, but uses different command set (non-JEDEC CFI) and lacks toggle-bit polling | Requires custom driver adaptation; no hardware-compatible replacement due to differing status detection method | Only consider MX29LV800CTTI-55G if existing firmware already implements its specific polling algorithm and layout allows same 48-pin TSOP footprint |
Compared with SST39VF800A-55-4C-B3KE-T, the SST39LF800A-55-4C-B3KE-T trades wider voltage flexibility for tighter 3.0V minimum regulation-ideal for stable 3.3V rails. Versus MX29LV800CTTI-55G, it offers JEDEC-standard command compatibility and dual-status detection, reducing firmware porting effort despite identical packaging and speed.
Availability
SST39LF800A-55-4C-B3KE-T is available at Aetrix Electronics and suitable for industrial control, medical diagnostics, telecom infrastructure, and automotive infotainment systems requiring stable component supply and long-term obsolescence management.
Supply support for SST39LF800A-55-4C-B3KE-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 acquired Silicon Storage Technology (SST) in 2010 and integrates SuperFlash IP into its broad portfolio of microcontrollers, analog, and memory products.
The SST39LF/VF series was designed specifically for cost-sensitive, high-reliability embedded systems needing field-upgradable nonvolatile storage with deterministic timing and JEDEC interoperability-targeting industrial, medical, and communications markets.
FAQ
What is the maximum operating temperature range for SST39LF800A-55-4C-B3KE-T?
The SST39LF800A-55-4C-B3KE-T is specified for commercial temperature range: 0°C to +70°C. It is not rated for industrial (–40°C to +85°C) operation-this capability is exclusive to the SST39VF800A variant. Thermal derating beyond +70°C may impair data retention or increase bit-error rates, so system-level thermal design must maintain junction temperature within this limit during active read/write cycles.
Does SST39LF800A-55-4C-B3KE-T require an external VPP voltage for programming?
No, the SST39LF800A-55-4C-B3KE-T does not require an external VPP voltage. It integrates an internal charge pump that generates the high voltage needed for erase and program operations from the standard 3.0–3.6V VDD supply. This eliminates the need for external high-voltage circuitry, simplifying board design and reducing BOM cost compared to older flash technologies.
How many erase sectors does SST39LF800A-55-4C-B3KE-T have, and what is their size?
The SST39LF800A-55-4C-B3KE-T contains 256 uniform erase sectors, each sized at 2 KWords (4 KBytes). This is confirmed by CFI geometry table entry at address 2DH–30H, where y = 255 (→ 256 sectors) and z = 16 (→ 16 × 256 Bytes = 4 KBytes/sector). Sector addressing uses AMS–A11 (A18–A11 for this 8 Mbit part), enabling precise firmware partitioning.
Is SST39LF800A-55-4C-B3KE-T pin-compatible with SST39LF400A or SST39LF200A?
Yes, SST39LF800A-55-4C-B3KE-T is pin-compatible with SST39LF400A and SST39LF200A in the same 48-lead TSOP package. All share identical pinout, voltage range, and command set. The only differences are internal address depth (A18 vs A17/A16) and sector/block count-handled transparently by the host software via JEDEC-standard CFI queries or hardcoded geometry.
What command sequence initiates Chip-Erase on SST39LF800A-55-4C-B3KE-T?
The Chip-Erase command sequence for SST39LF800A-55-4C-B3KE-T is six bus cycles: write 0xAA to address 0x5555, 0x55 to 0x2AAA, 0x80 to 0x5555, 0xAA to 0x5555, 0x55 to 0x2AAA, then 0x10 to 0x5555. This sequence is identical across all SST39LF/VF parts. The internal chip-erase completes in 70 ms typical, and status is verified via DQ6 toggle-bit or DQ7 data# polling after the sixth WE# pulse.
SST39LF800A-55-4C-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- 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:
- 55 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA
SST39LF800A-55-4C-B3KE-T FAQ
1.How can I place an order for SST39LF800A-55-4C-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF800A-55-4C-B3KE-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 SST39LF800A-55-4C-B3KE-T reliable?
The price and inventory of SST39LF800A-55-4C-B3KE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF800A-55-4C-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39LF800A-55-4C-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF800A-55-4C-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF800A-55-4C-B3KE-T?
SST39LF800A-55-4C-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF800A-55-4C-B3KE-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 SST39LF800A-55-4C-B3KE-T?
For technical support, including SST39LF800A-55-4C-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF800A-55-4C-B3KE-T requirements.
6.How does Aetrix verify that SST39LF800A-55-4C-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39LF800A-55-4C-B3KE-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 SST39LF800A-55-4C-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39LF800A-55-4C-B3KE-T?
All SST39LF800A-55-4C-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF800A-55-4C-B3KE-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 SST39LF800A-55-4C-B3KE-T part is unused and in its original packaging.
Return procedure for SST39LF800A-55-4C-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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