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Microchip Technology SST39LF802C-55-4C-B3KE-T
- Part No.:
- SST39LF802C-55-4C-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39LF802C-55-4C-B3KE-T.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,262
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Product details
Overview
SST39LF802C-55-4C-B3KE-T from Microchip Technology is a 8 Mbit (512K × 16) low-voltage CMOS Multi-Purpose Flash Plus memory IC with 55 ns read access time, 3.0–3.6 V operating voltage, and hardware top-block protection. It features uniform 2 KWord sector erase, flexible block architecture (including one 8-KWord top boot block), and SuperFlash® technology enabling 100,000 program/erase cycles and >100 years data retention. It is used in embedded firmware storage for industrial controllers requiring reliable, low-power nonvolatile code execution.
For engineers reviewing the SST39LF802C-55-4C-B3KE-T datasheet, SST39LF802C-55-4C-B3KE-T pinout, SST39LF802C-55-4C-B3KE-T application, or SST39LF802C-55-4C-B3KE-T equivalent, key selection considerations include its top-boot block address range (7E000H–7FFFFH), 48-ball WFBGA (4 mm × 6 mm) package, RY/BY# status signaling, and JEDEC-standard x16 parallel interface compatibility with legacy microprocessor buses.
Technical Context
This device implements a parallel x16 asynchronous flash interface with latched address/data, CMOS I/O compatibility, and JEDEC-standard command set (e.g., 6-byte sector/block erase, 3-byte security ID entry). Its SuperFlash® split-gate cell enables fixed 7 µs word-program and 18 ms sector/block erase times - independent of wear - eliminating software de-rating over lifetime.
Hardware protection includes dedicated WP# input for top 8 KWord block lock, RST# for hard reset to read mode, and noise/glitch immunity (<5 ns pulse rejection). Status reporting uses three complementary methods: RY/BY# open-drain output, DQ7 Data# Polling, and DQ6/DQ2 Toggle Bits - all validated per JEDEC JESD21-C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 organization), directly maps to 1 MB of 16-bit wide address space |
| Read Access Time | 55 ns - enables direct execution from flash on 16-bit microcontrollers running ≤18 MHz without wait states |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails; no external VPP required due to internal charge pump |
| Endurance | 100,000 program/erase cycles - supports field firmware updates across full product lifecycle |
| Data Retention | >100 years at 25°C - ensures long-term reliability in unpowered storage applications |
| Active Current | 5 mA typical at 5 MHz - enables low-power operation in battery-backed or energy-constrained systems |
| Standby Current | 3 µA typical - meets ultra-low-power requirements for always-on embedded control modules |
Pinout & Package
Package: 48-ball WFBGA (4 mm × 6 mm, 0.5 mm pitch), RoHS-compliant, bottom-side thermal pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus; A18–A11 select sector during sector-erase; A18–A15 select block during block-erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; outputs tri-stated when CE# or OE# high; latched internally during write |
| CE# | Chip Enable | Active-low chip select; device enters standby (3 µA) when high; required low for all operations |
| OE# | Output Enable | Active-low output gate; controls data bus drive; must be low for valid read data |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling/rising edges per JEDEC timing |
| WP# | Write Protect | Active-low hardware lock for top 8 KWord boot block (7E000H–7FFFFH); floating = unprotected |
| RST# | Reset | Active-low hardware reset; forces return to read mode; terminates in-progress erase/program |
| RY/BY# | Ready/Busy# | Open-drain status output; pulled low during erase/program; requires 10–100 kΩ external pull-up |
| VDD | Power Supply | 3.0–3.6 V supply; powers core logic and SuperFlash® charge pump |
| VSS | Ground | Reference ground for all signals and internal circuitry |
| NC | No Connection | Unbonded balls (A2, A5, A13, C1, D1, E1, F1, G1, H1, J1, K1, L1, L2, L3, L4, L5, L6) - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows temporary halt of sector/block erase to read other locations or program unprotected blocks - critical for real-time firmware update scenarios |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable space - enables secure device authentication and traceability in OEM production |
| Auto Low Power Mode | Reduces active read current from 5 mA to 3 µA after valid read - eliminates need for external power management logic |
| Uniform Sector Architecture | 2 KWord sectors (4 KB) enable fine-grained firmware partitioning - supports differential OTA updates without full chip erase |
| JEDEC Standard Compliance | Fully compliant with JEDEC pinouts and command sets for x16 flash - ensures drop-in replacement capability in existing designs |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing boot loader and safety-critical firmware in programmable logic controllers deployed in factory automation environments with wide temperature ranges and EMI exposure. IC Role / Device Role / Timing Role: Nonvolatile x16 parallel flash memory providing direct code execution (XIP) and secure firmware update storage. Use Value: Top-boot block protection prevents accidental overwrite of bootloader during field updates; 100,000-cycle endurance supports decades of maintenance cycles. |
Use Scenario: Holding certified boot code and calibration data in Class II medical instruments requiring regulatory-compliant data integrity and long-term archival. IC Role / Device Role / Timing Role: Trusted firmware storage with hardware reset (RST#) and ready/busy signaling for deterministic boot sequencing. Use Value: >100-year data retention meets FDA 21 CFR Part 11 archival requirements; Security ID enables device-specific firmware binding. |
| Telecom Base Station Configuration | Automotive Infotainment System |
Use Scenario: Storing configuration profiles and protocol stacks in remote radio units where power cycling is frequent and environmental stress is high. IC Role / Device Role / Timing Role: Low-voltage (3.0–3.6 V) flash memory interfacing with ARM-based baseband processors via parallel bus. Use Value: 55 ns access time enables zero-wait-state operation at 18 MHz bus speed; Auto Low Power mode reduces idle power in sleep modes. |
Use Scenario: Hosting infotainment OS kernel and UI assets in automotive head units requiring AEC-Q100 Grade 3 qualification (supported by this WFBGA variant). IC Role / Device Role / Timing Role: High-reliability parallel flash with hardware block protection to safeguard boot partitions from corruption during CAN-based firmware updates. Use Value: Top-boot block (7E000H–7FFFFH) isolates bootloader from application updates; RY/BY# signal synchronizes update routines with hardware readiness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel x16 flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV800CTTC-70G | 70 ns access time; 2.7–3.6 V supply; 48-pin TSOP package; no WFBGA option | Lacks top-boot block protection; uses different command set (non-JEDEC standard) | Select only if board layout accommodates TSOP and design tolerates slower access and reduced protection granularity. |
| S29GL064N90TFI020 | 90 ns access; 2.7–3.6 V; 48-ball BGA (6 mm × 8 mm TFBGA); supports CFI but no Security ID | Bottom-boot architecture only; no hardware top-block lock; larger footprint than WFBGA | Prefer for CFI-driven auto-configuration systems where top-boot protection is not required and board space allows TFBGA. |
Compared with MX29LV800CTTC-70G and S29GL064N90TFI020, the SST39LF802C-55-4C-B3KE-T delivers faster 55 ns read performance, native top-boot hardware protection, compact 4 mm × 6 mm WFBGA packaging, and integrated Security ID - making it optimal for space-constrained, safety-critical, and secure firmware storage applications.
Availability
SST39LF802C-55-4C-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, telecom base station configuration, and automotive infotainment systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for SST39LF802C-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, acquired Silicon Storage Technology (SST) in 2016 to expand its nonvolatile memory portfolio.
The SST39LF802C-55-4C-B3KE-T belongs to the Multi-Purpose Flash Plus (MPF+) family, designed specifically for embedded systems needing reliable, low-voltage, high-endurance parallel flash with hardware security and JEDEC interoperability.
FAQ
What is the exact boot block configuration of the SST39LF802C-55-4C-B3KE-T?
The SST39LF802C-55-4C-B3KE-T implements top-boot block protection: the highest 8 KWord (32 KB) region - address range 7E000H to 7FFFFH - is hardware-protected when WP# is grounded. This matches the SST39LF802C designation per DS25041A Table 4 and is distinct from the bottom-boot SST39LF801C variant.
Does the SST39LF802C-55-4C-B3KE-T require an external VPP voltage for programming?
No, the SST39LF802C-55-4C-B3KE-T does not require external VPP. It uses internal charge pump circuitry to generate necessary high-voltage programming pulses from the single 3.0–3.6 V VDD supply, as confirmed in DS25041A Section "Automatic Write Timing" and Table 9 (VPP min/max = 0000H).
How is the RY/BY# pin used for status monitoring in the SST39LF802C-55-4C-B3KE-T?
The RY/BY# pin on the SST39LF802C-55-4C-B3KE-T is an open-drain output requiring a 10–100 kΩ external pull-up resistor. It drives low during active erase or program operations and goes high (ready) upon completion - enabling hardware-synchronized polling without software overhead.
Can the SST39LF802C-55-4C-B3KE-T be used in place of the SST39VF802C-70-4C-B3KE-T?
Yes, but with timing and voltage trade-offs: the SST39LF802C-55-4C-B3KE-T operates at 3.0–3.6 V (vs. 2.7–3.6 V for VF version) and offers faster 55 ns access (vs. 70 ns). Both share identical pinout, command set, and top-boot architecture - making them functionally compatible where system voltage and speed margins allow.
What security features does the SST39LF802C-55-4C-B3KE-T provide beyond hardware write protection?
Beyond WP#-based top-block lock, the SST39LF802C-55-4C-B3KE-T includes a 128-bit factory-programmed Security ID and 128-word user-programmable ID space, accessible via 3-byte 88H command. It also enforces JEDEC-standard Software Data Protection with mandatory 3-byte (program) or 6-byte (erase) unlock sequences before any write operation.
SST39LF802C-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:
- 10µs
- 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 (6x8)
SST39LF802C-55-4C-B3KE-T FAQ
1.How can I place an order for SST39LF802C-55-4C-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF802C-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 SST39LF802C-55-4C-B3KE-T reliable?
The price and inventory of SST39LF802C-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 SST39LF802C-55-4C-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39LF802C-55-4C-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF802C-55-4C-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF802C-55-4C-B3KE-T?
SST39LF802C-55-4C-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF802C-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 SST39LF802C-55-4C-B3KE-T?
For technical support, including SST39LF802C-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 SST39LF802C-55-4C-B3KE-T requirements.
6.How does Aetrix verify that SST39LF802C-55-4C-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39LF802C-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 SST39LF802C-55-4C-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39LF802C-55-4C-B3KE-T?
All SST39LF802C-55-4C-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF802C-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 SST39LF802C-55-4C-B3KE-T part is unused and in its original packaging.
Return procedure for SST39LF802C-55-4C-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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