Microchip Technology SST39LF200A-45-4C-B3KE
- Part No.:
- SST39LF200A-45-4C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39LF200A-45-4C-B3KE.pdf
- Description:
- IC FLASH 2MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SST39LF200A-45-4C-B3KE from Microchip Technology is a 2 Mbit (128K × 16) CMOS Multi-Purpose Flash memory IC using SuperFlash technology, operating at 3.0–3.6 V, 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 SST39LF200A-45-4C-B3KE datasheet, SST39LF200A-45-4C-B3KE pinout, SST39LF200A-45-4C-B3KE application, or SST39LF200A-45-4C-B3KE equivalent, key selection criteria include x16 asynchronous interface timing, JEDEC-standard command set compatibility, sector/block erase granularity, hardware/software data protection, and TSOP-48 package footprint for legacy PCB designs.
Technical Context
The SST39LF200A-45-4C-B3KE implements an x16 asynchronous parallel interface with CE#, OE#, and WE# control signals, supporting Word-Program, Sector-Erase (2 KWord), Block-Erase (32 KWord), and Chip-Erase operations via JEDEC-standard six-byte command sequences. Its SuperFlash split-gate cell enables fixed 14 µs program and 18 ms erase times independent of wear level.
It features dual status detection (DQ7 Data# Polling and DQ6 Toggle Bit) for write completion monitoring, on-chip hardware write inhibit during power transitions, and software data protection (SDP) permanently enabled at shipment. The device conforms to JEDEC standard pinouts and supports CFI Query mode for automatic configuration identification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (128K × 16 organization), providing 256 KB of addressable nonvolatile storage space |
| Read Access Time | 55 ns - enables direct execution from flash (XIP) in 14 MHz bus systems without wait states |
| Supply Voltage | 3.0–3.6 V - compatible with 3.3 V logic domains and eliminates need for external voltage regulators |
| Endurance | 100,000 program/erase cycles - supports frequent firmware updates over product lifetime |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage applications |
| Erase Granularity | Uniform 2 KWord sectors and 32 KWord blocks - allows selective firmware patching without full chip reprogramming |
| Write Timing | 14 µs word-program time with internal VPP generation - reduces system-level timing overhead and external component count |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A15 select byte/word location; A16 selects upper/lower 128K segment (AMS = A16 for 2 Mbit) |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with tri-state output controlled by CE# and OE# |
| CE# | Chip Enable | Active-low chip select - enables device operation only when asserted; high-Z otherwise |
| OE# | Output Enable | Active-low output gate - controls data bus drive during read; required low with CE# for valid output |
| WE# | Write Enable | Active-low write strobe - latches address/data and initiates internal program/erase commands |
| VDD | Power Supply | 3.0–3.6 V supply - powers core logic and charge pump; no separate VPP pin required |
| VSS | Ground | Two dedicated ground pins (pins 23 and 47) - reduce noise coupling and improve signal integrity |
| NC | No Connect | Pins 9, 10, 12–16, 18, 19, 21, 22, 24, 25, 27, 28, 30, 31, 33, 34, 36, 37, 39, 40, 42, 43 - must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide tunneling injector delivers stable 14 µs program and 18 ms erase times across full endurance life |
| JEDEC Standard Compliance | Pinout and command set fully aligned with industry-standard x16 flash interfaces - enables drop-in replacement in existing designs |
| Hardware Write Inhibit | Automatic lockout below 1.5 V VDD and noise rejection for <5 ns glitches - prevents corruption during power ramp |
| Software Data Protection | Three-byte unlock sequence for programming and six-byte sequence for erasing - prevents accidental writes during boot or debug |
| CFI Query Support | Standardized CFI table accessible at 5555H/98H - enables automatic driver initialization and runtime device identification |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing programmable logic controller firmware that requires field updates via serial port or USB interface. IC Role / Device Role / Timing Role: Nonvolatile code storage with XIP-capable 55 ns read timing and sector-erase support for incremental patch deployment. Use Value: Enables secure, reliable firmware upgrades without replacing hardware; 100,000-cycle endurance supports decades of maintenance cycles. | Use Scenario: Holding calibrated sensor coefficients and regulatory-compliant device configuration parameters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Parameter storage with hardware/software write protection and >100-year data retention for audit-trail compliance. Use Value: Guarantees calibration integrity across product lifetime; dual status bits (DQ6/DQ7) allow deterministic update verification in safety-critical contexts. |
| Automotive Infotainment Bootloader | Networking Equipment BIOS Image |
Use Scenario: Hosting bootloader code that initializes SoC peripherals and validates signed application images before execution. IC Role / Device Role / Timing Role: Secure boot memory with fast 55 ns read access and block-erase capability for multi-stage image recovery. Use Value: Reduces boot latency while enabling robust fail-safe recovery - critical for ASIL-B compliant infotainment systems. | Use Scenario: Storing BIOS/firmware images for enterprise switches and routers requiring remote firmware rollback capability. IC Role / Device Role / Timing Role: Dual-image storage with independent sector erase - allows active/inactive bank switching without downtime. Use Value: Eliminates service interruption during firmware updates; JEDEC compatibility simplifies integration into existing BIOS toolchains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV200CTTI-45G | 45 ns read access, 2.7–3.6 V supply, 100K endurance, same TSOP-48 package | Supports wider voltage range and includes VPP pin; lacks CFI Query mode | Preferred where extended voltage margin is needed, but requires CFI-aware software adaptation |
| EN29LV200T-45BIP | 45 ns read, 2.7–3.6 V, 100K endurance, TSOP-48, JEDEC-compatible command set | Uses different unlock sequence; no SuperFlash cell - slower erase uniformity over lifetime | Drop-in alternative for cost-sensitive designs where fixed erase time is not mandatory |
Compared with MX29LV200CTTI-45G and EN29LV200T-45BIP, the SST39LF200A-45-4C-B3KE provides guaranteed fixed 14 µs program and 18 ms erase times across its full endurance life, superior data retention (>100 years vs. typical 20 years), and integrated CFI Query support - making it optimal for long-lifecycle, high-reliability embedded systems.
Availability
SST39LF200A-45-4C-B3KE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, automotive infotainment bootloader, networking equipment BIOS image, and embedded microcontroller code storage requiring stable component supply and long-term lifecycle support.
Supply support for SST39LF200A-45-4C-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 delivering smart, connected, and secure embedded control solutions, with leadership in microcontrollers, analog, FPGA, and memory products.
The SST39LF200A-45-4C-B3KE belongs to Microchip's SST SuperFlash family, engineered for high-reliability, low-power, field-upgradable nonvolatile memory in industrial, automotive, and medical applications demanding long data retention and consistent erase/program performance.
FAQ
What is the maximum operating frequency supported by SST39LF200A-45-4C-B3KE?
The SST39LF200A-45-4C-B3KE does not operate at a clock frequency - it is an asynchronous parallel flash memory. Its 55 ns read access time corresponds to a maximum effective bus cycle rate of approximately 14 MHz when interfaced with a microcontroller or ASIC using standard timing margins. The device uses CE#, OE#, and WE# control signals rather than a clock input, and all timing is defined relative to these strobes per the AC specifications in DS25001A.
Does SST39LF200A-45-4C-B3KE support both sector and block erase modes?
Yes, the SST39LF200A-45-4C-B3KE supports both sector erase (2 KWord uniform sectors) and block erase (32 KWord uniform blocks). Sector erase is initiated using the 30H command with AMS–A11 address lines; block erase uses the 50H command with AMS–A15 address lines. Both operations complete in 18 ms typical, and the device provides DQ6 Toggle Bit and DQ7 Data# Polling for reliable end-of-erase detection.
Is SST39LF200A-45-4C-B3KE pin-compatible with other devices in the SST39LF/VF family?
The SST39LF200A-45-4C-B3KE shares identical pinout and command set with SST39LF400A and SST39LF800A in TSOP-48 packaging, but differs in address depth: AMS = A16 for SST39LF200A, A17 for 400A, and A18 for 800A. This means A17/A18 pins are NC on SST39LF200A-45-4C-B3KE but functional on higher-density variants - PCB layout must match the specific density variant used.
How is write protection implemented on SST39LF200A-45-4C-B3KE?
The SST39LF200A-45-4C-B3KE implements dual-layer write protection: hardware-based (VDD power-up/down detection, <5 ns noise rejection, and OE#/CE#/WE# state monitoring) and software-based (mandatory three-byte unlock sequence for programming and six-byte sequence for erasing). Software Data Protection is permanently enabled at shipment, and invalid command sequences automatically abort to Read mode within TRC.
What package type is used for SST39LF200A-45-4C-B3KE?
The SST39LF200A-45-4C-B3KE is packaged in a 48-lead TSOP (Thin Small Outline Package) measuring 12 mm × 20 mm, with lead-free (RoHS-compliant) construction. This package is compatible with standard surface-mount assembly processes and matches JEDEC MO-142AC mechanical specifications - confirmed in Figures 2 and 14 of DS25001A.
SST39LF200A-45-4C-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 128K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20µs
- Access Time:
- 45 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA
SST39LF200A-45-4C-B3KE FAQ
1.How can I place an order for SST39LF200A-45-4C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF200A-45-4C-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 SST39LF200A-45-4C-B3KE reliable?
The price and inventory of SST39LF200A-45-4C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF200A-45-4C-B3KE is usually 5 days.
3.What payment methods are accepted for SST39LF200A-45-4C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF200A-45-4C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF200A-45-4C-B3KE?
SST39LF200A-45-4C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF200A-45-4C-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 SST39LF200A-45-4C-B3KE?
For technical support, including SST39LF200A-45-4C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF200A-45-4C-B3KE requirements.
6.How does Aetrix verify that SST39LF200A-45-4C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST39LF200A-45-4C-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 SST39LF200A-45-4C-B3KE meets industry standards.
7.What is the process for return or replacement of SST39LF200A-45-4C-B3KE?
All SST39LF200A-45-4C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF200A-45-4C-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 SST39LF200A-45-4C-B3KE part is unused and in its original packaging.
Return procedure for SST39LF200A-45-4C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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