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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology SST39VF6402B-70-4C-B1KE-T

Name: SST39VF6402B-70-4C-B1KE-T
Brand: Microchip Technology
SKU: SST39VF6402B-70-4C-B1KE-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SST39VF6402B-70-4C-B1KE-T

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 48-TFBGA

Datasheet:: SST39VF6402B-70-4C-B1KE-T.pdf

Description:: IC FLASH 64MBIT PARALLEL 48TFBGA

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Product details

Overview

SST39VF6402B-70-4C-B1KE-T from Microchip is a 64 Mbit (4M × 16) Multi-Purpose Flash Plus (MPF+) memory IC with single-supply 2.7–3.6 V operation, 70 ns read access time, top 32 KWord hardware block protection, and JEDEC-standard x16 asynchronous interface - used for firmware storage and configuration in industrial control panels and legacy embedded systems requiring field-upgradable nonvolatile memory.

For engineers reviewing the SST39VF6402B-70-4C-B1KE-T datasheet, SST39VF6402B-70-4C-B1KE-T pinout, SST39VF6402B-70-4C-B1KE-T application, or SST39VF6402B-70-4C-B1KE-T equivalent, key selection considerations include boot-block protection direction (top vs. bottom), TSOP-48 vs. TFBGA-48 package compatibility, sector/block erase timing (18 ms typical), Word-Program time (7 µs), and SuperFlash reliability metrics (100,000 cycles, >100 years retention).

Technical Context

The SST39VF6402B-70-4C-B1KE-T implements SuperFlash split-gate cell technology with thick-oxide tunneling injection, enabling fixed erase/program times independent of cycle count and eliminating performance de-rating over lifetime. It supports JEDEC-standard command-set compatibility for x16 flash, including Software Data Protection (SDP) with three-byte unlock sequences for program and six-byte sequences for erase operations.

Hardware features include dedicated WP# for top-boot-block protection (3F8000H–3FFFFFH), RST# for hardware reset to read mode, and dual status detection via DQ7 (Data# Polling) and DQ6/DQ2 (Toggle Bits). The device operates across commercial temperature range (0°C to +70°C) and supports CFI Query mode for runtime identification.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	4M × 16 (64 Mbit); enables 16-bit parallel data bus interfacing with microcontrollers and DSPs without external data-width conversion.
Read Access Time	70 ns; guarantees deterministic timing for high-speed instruction fetch in legacy 8051/ARM7-based boot loaders.
Supply Voltage	2.7–3.6 V; single-supply operation simplifies power design and eliminates need for separate VPP programming voltage.
Endurance	100,000 program/erase cycles; supports frequent firmware updates in remote monitoring devices without premature wear-out.
Data Retention	>100 years; ensures long-term integrity of stored calibration tables and security IDs in unpowered industrial equipment.
Erase Granularity	Uniform 2 KWord sectors and 32 KWord blocks; allows selective firmware patching without full-chip erasure.
Write Protection	Top 32 KWord hardware block (3F8000H–3FFFFFH); prevents accidental overwrite of boot code during field upgrades.

Pinout & Package

Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, standard pinout per JEDEC MO-142AC. Pin functions validated per DS20005008C Figures 2 and Table 1.

Pin/Terminal	Circuit Role	Design Meaning
A0–A21	Address Inputs	22-bit address bus (AMS = A21); A10–A0 used for command addressing; AMS–A11 selects sector; AMS–A15 selects block.
DQ0–DQ15	Data I/O	16-bit bidirectional data bus; latched internally during write; tri-stated when CE# or OE# is high.
CE#	Chip Enable	Active-low chip select; must be low to enable read/write; high state places device in standby (3 µA).
OE#	Output Enable	Active-low output gate; controls data bus visibility during read; does not affect internal operations.
WE#	Write Enable	Active-low write strobe; latches address/data on falling/rising edges per JEDEC command protocol.
WP#	Write Protect	Active-low top-boot-block lock; grounded to protect 3F8000H–3FFFFFH; floating = internally pulled high (unprotected).
RST#	Reset	Active-low hardware reset; terminates ongoing erase/program and forces return to read mode within TRP.
VDD / VSS	Power / Ground	Single 2.7–3.6 V supply; no VPP required; internal charge pump generates programming voltage.

Key Features

Feature	Design Value
SuperFlash Technology	Split-gate cell with thick-oxide injector delivers fixed 7 µs Word-Program and 18 ms Block-Erase times across full lifecycle - no software de-rating needed.
Erase-Suspend/Resume	Allows real-time read access to non-suspended sectors during active erase; critical for interrupt-driven firmware update handlers.
Security ID Space	256-bit factory/user-programmable ID (128-bit locked Microchip ID + 128-bit user space); supports secure device authentication and traceability.
Auto Low Power Mode	Reduces active read current from 9 mA to 3 µA after valid access; eliminates need for external power gating in battery-backed systems.
CFI Query Support	Enables runtime detection of geometry, timing, and command set via standardized 3-byte entry sequence - simplifies driver portability.

Applications

Industrial HMI Firmware Storage	Legacy Telecom Baseband Configuration
Use Scenario: Storing boot code and GUI assets in panel-mounted human-machine interface controllers operating in factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile x16 memory mapped to microcontroller address space; provides 70 ns read access for deterministic boot timing. Use Value: Top-block protection prevents corruption of bootloader during field firmware updates; >100-year retention ensures 15+ year product lifecycle support.	Use Scenario: Holding FPGA configuration bitstreams and DSP parameter tables in aging telecom infrastructure equipment where replacement parts are scarce. IC Role / Device Role / Timing Role: Asynchronous flash memory interfaced to legacy 16-bit bus controllers; supports JEDEC-compatible command sequences for drop-in compatibility. Use Value: Sector-erase capability enables partial reconfiguration without full system reboot; SuperFlash energy efficiency reduces thermal load in sealed enclosures.
Medical Device Calibration Data	Automotive Diagnostic Module Code
Use Scenario: Archiving sensor calibration coefficients and regulatory audit logs in Class II medical instruments requiring long-term data integrity. IC Role / Device Role / Timing Role: Secure nonvolatile storage with programmable Security ID; accessed via microcontroller during power-on self-test. Use Value: Factory-programmed 128-bit ID enables anti-counterfeiting; 100,000-cycle endurance supports recalibration every 6 months over 20 years.	Use Scenario: Hosting OBD-II diagnostic firmware and vehicle-specific lookup tables in aftermarket scan tools deployed across diverse automotive ECUs. IC Role / Device Role / Timing Role: Boot memory for ARM Cortex-M3 host MCU; supports fast 7 µs Word-Program for over-the-air patching. Use Value: Hardware block protection isolates critical diagnostic routines from user-initiated updates; CFI Query enables automatic driver adaptation.

Industrial HMI Firmware Storage

Legacy Telecom Baseband Configuration

Use Scenario: Storing boot code and GUI assets in panel-mounted human-machine interface controllers operating in factory environments with wide temperature swings.

IC Role / Device Role / Timing Role: Nonvolatile x16 memory mapped to microcontroller address space; provides 70 ns read access for deterministic boot timing.

Use Value: Top-block protection prevents corruption of bootloader during field firmware updates; >100-year retention ensures 15+ year product lifecycle support.

Use Scenario: Holding FPGA configuration bitstreams and DSP parameter tables in aging telecom infrastructure equipment where replacement parts are scarce.

IC Role / Device Role / Timing Role: Asynchronous flash memory interfaced to legacy 16-bit bus controllers; supports JEDEC-compatible command sequences for drop-in compatibility.

Use Value: Sector-erase capability enables partial reconfiguration without full system reboot; SuperFlash energy efficiency reduces thermal load in sealed enclosures.

Medical Device Calibration Data

Automotive Diagnostic Module Code

Use Scenario: Archiving sensor calibration coefficients and regulatory audit logs in Class II medical instruments requiring long-term data integrity.

IC Role / Device Role / Timing Role: Secure nonvolatile storage with programmable Security ID; accessed via microcontroller during power-on self-test.

Use Value: Factory-programmed 128-bit ID enables anti-counterfeiting; 100,000-cycle endurance supports recalibration every 6 months over 20 years.

Use Scenario: Hosting OBD-II diagnostic firmware and vehicle-specific lookup tables in aftermarket scan tools deployed across diverse automotive ECUs.

IC Role / Device Role / Timing Role: Boot memory for ARM Cortex-M3 host MCU; supports fast 7 µs Word-Program for over-the-air patching.

Use Value: Hardware block protection isolates critical diagnostic routines from user-initiated updates; CFI Query enables automatic driver adaptation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar flash memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SST39VF6402B-70-4C-EKE	Same die, 48-ball TFBGA (8 mm × 10 mm) package instead of TSOP-48; identical timing, voltage, and command set.	Used where board space is constrained and BGA assembly is available; requires different PCB layout and reflow profile.	Select for compact designs with automated SMT capability; verify thermal pad grounding and signal integrity for high-frequency reads.
SST38VF6402-70-4C-B3KE	Successor generation: same 64 Mbit x16 organization but enhanced SuperFlash with 55 ns access, lower 5 mA active current, and extended -40°C to +85°C industrial temp range.	Recommended for new designs requiring longer lifecycle support, wider temperature tolerance, and improved power efficiency.	Prefer for new projects; note SST39VF6402B-70-4C-B1KE-T is Not Recommended for New Designs per Microchip DS20005008C.

Compared with SST39VF6402B-70-4C-EKE, the TSOP-48 package offers easier prototyping and rework; compared with SST38VF6402-70-4C-B3KE, the SST39VF6402B-70-4C-B1KE-T lacks industrial temperature rating and has slower access time - making it suitable only for cost-sensitive legacy replacements.

Availability

SST39VF6402B-70-4C-B1KE-T is available at Aetrix Electronics and suitable for industrial HMI firmware storage, legacy telecom configuration, medical calibration data archiving, and automotive diagnostic module code requiring stable component supply amid end-of-life transitions.

Supply support for SST39VF6402B-70-4C-B1KE-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 Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and nonvolatile memory solutions for embedded control applications.

The SST39VF6402B-70-4C-B1KE-T belongs to Microchip's Multi-Purpose Flash Plus (MPF+) product line, designed specifically for reliable, low-voltage firmware and configuration storage in space-constrained, long-lifecycle industrial and communications systems.

FAQ

What is the memory organization and bus width of the SST39VF6402B-70-4C-B1KE-T?

The SST39VF6402B-70-4C-B1KE-T is organized as 4M × 16, delivering 64 Mbit total capacity with a 16-bit parallel data bus (DQ0–DQ15). This configuration supports direct interfacing with 16-bit microcontrollers and DSPs without glue logic, and its address range spans A0–A21 (22 address lines), with AMS defined as A21 per DS20005008C.

Does the SST39VF6402B-70-4C-B1KE-T support hardware write protection, and how is it configured?

Yes, the SST39VF6402B-70-4C-B1KE-T supports top 32 KWord hardware block protection via the WP# pin. When WP# is grounded, the boot block at address 3F8000H–3FFFFFH is locked against program and erase operations. If WP# is left floating, an internal pull-up holds it high, disabling protection. This behavior is specific to the SST39VF6402B variant - SST39VF6401B protects the bottom block instead.

What are the supported erase modes and their typical timing for the SST39VF6402B-70-4C-B1KE-T?

The SST39VF6402B-70-4C-B1KE-T supports sector-erase (2 KWord), block-erase (32 KWord), and chip-erase, all with typical times of 18 ms, 18 ms, and 40 ms respectively. Erase operations use JEDEC-standard six-byte command sequences, and completion is verified via DQ7 Data# Polling or DQ6/DQ2 Toggle Bits - no external timers required.

Is the SST39VF6402B-70-4C-B1KE-T compatible with JEDEC-standard flash command sets?

Yes, the SST39VF6402B-70-4C-B1KE-T implements JEDEC-standard pin assignments for x16 memories and is software-command compatible with industry-standard flash devices. It supports the Common Flash Interface (CFI) Query mode for runtime identification and uses documented sequences for Word-Program (A0H), Sector-Erase (50H), Block-Erase (30H), and Chip-Erase (10H) per DS20005008C Table 6.

What is the operating temperature range and reliability specification for the SST39VF6402B-70-4C-B1KE-T?

The SST39VF6402B-70-4C-B1KE-T is rated for commercial temperature operation (0°C to +70°C) and guarantees 100,000 program/erase cycles with greater than 100 years of data retention. These specifications are measured under 2.7–3.6 V supply and validated per Microchip's SuperFlash process - no derating required over lifetime due to fixed erase/program timing.

SST39VF6402B-70-4C-B1KE-T Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: SST39 MPF™

Package/Case:: 48-TFBGA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH

Memory Size:: 64Mbit

Memory Organization:: 4M 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:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TFBGA

SST39VF6402B-70-4C-B1KE-T FAQ

1.How can I place an order for SST39VF6402B-70-4C-B1KE-T through Aetrix?

Please submit a Request for Quotation (RFQ) for SST39VF6402B-70-4C-B1KE-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 SST39VF6402B-70-4C-B1KE-T reliable?

The price and inventory of SST39VF6402B-70-4C-B1KE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF6402B-70-4C-B1KE-T is usually 5 days.

3.What payment methods are accepted for SST39VF6402B-70-4C-B1KE-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF6402B-70-4C-B1KE-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SST39VF6402B-70-4C-B1KE-T?

SST39VF6402B-70-4C-B1KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SST39VF6402B-70-4C-B1KE-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 SST39VF6402B-70-4C-B1KE-T?

For technical support, including SST39VF6402B-70-4C-B1KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF6402B-70-4C-B1KE-T requirements.

6.How does Aetrix verify that SST39VF6402B-70-4C-B1KE-T is sourced from the original manufacturer or authorized distributors?

All SST39VF6402B-70-4C-B1KE-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 SST39VF6402B-70-4C-B1KE-T meets industry standards.

7.What is the process for return or replacement of SST39VF6402B-70-4C-B1KE-T?

All SST39VF6402B-70-4C-B1KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF6402B-70-4C-B1KE-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 SST39VF6402B-70-4C-B1KE-T part is unused and in its original packaging.

Return procedure for SST39VF6402B-70-4C-B1KE-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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