My Inquiry
My Account
Microchip Technology SST39VF020-70-4C-B3KE
- Part No.:
- SST39VF020-70-4C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF020-70-4C-B3KE.pdf
- Description:
- IC FLASH 2MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,494
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST39VF020-70-4C-B3KE from Microchip Technology is a 2 Mbit (256K × 8) CMOS Multi-Purpose Flash memory IC with 2.7–3.6 V single-supply write operation, 70 ns read access time, and uniform 4 KByte sector-erase architecture. It implements SuperFlash technology for high reliability in embedded firmware storage, BIOS/UEFI code retention, and industrial controller configuration memory.
For engineers reviewing the SST39VF020-70-4C-B3KE datasheet, SST39VF020-70-4C-B3KE pinout, SST39VF020-70-4C-B3KE application, or SST39VF020-70-4C-B3KE equivalent, this page delivers verified electrical specs, JEDEC-compliant x8 interface behavior, package-specific terminal mapping, and real-world flash replacement guidance - all grounded in DS25023A Rev A.
Technical Context
This device uses SST's proprietary SuperFlash split-gate cell architecture with thick-oxide tunneling injector, enabling fixed erase/program timing independent of cycle count and eliminating performance de-rating over lifetime. It supports standard JEDEC x8 flash command sets including byte-program, sector-erase (30H), chip-erase (10H), and software product ID (90H/F0H).
Write operations require a six-byte software data protection sequence; read cycles are controlled by CE# and OE# active-low enables with tri-state outputs. End-of-write detection is implemented via Data# Polling (DQ7) and Toggle Bit (DQ6), both valid after the sixth WE#/CE# pulse during erase or fourth pulse during program.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256K × 8) - provides sufficient space for boot code + configuration tables in resource-constrained microcontrollers. |
| Read Access Time | 70 ns - determines minimum bus cycle duration for 8-bit parallel interfaces in legacy 8051/68K-based systems. |
| Supply Voltage Range | 2.7–3.6 V - enables direct integration into 3.3 V logic domains without level-shifting, supporting industrial temperature range (-40°C to +85°C). |
| Endurance | 100,000 program/erase cycles - ensures long-term field reliability for infrequently updated firmware partitions. |
| Data Retention | Greater than 100 years - guarantees nonvolatile storage integrity across product lifecycle without refresh. |
| Sector Size | Uniform 4 KByte sectors - simplifies firmware update partitioning and reduces risk of partial corruption during power loss. |
| Active Current | 5 mA typical at 14 MHz - minimizes dynamic power draw during code execution from flash in battery-backed applications. |
Pinout & Package
Package: 48-ball TFBGA (6 mm × 8 mm, B3K footprint). Pinout conforms to JEDEC-standard x8 flash layout with dedicated address, data, and control terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 256K × 8 addressing requires A0–A16 (17 bits); A17 used only for sector selection during erase. |
| DQ0–DQ7 | Data I/O | Bidirectional 8-bit data bus; outputs tri-stated when CE# or OE# is high; latched internally during write. |
| CE# | Chip Enable | Active-low global enable - must be low to activate internal logic; high state places device in standby (1 µA). |
| OE# | Output Enable | Active-low output gate - controls DQ bus drive; high disables outputs regardless of CE# state. |
| WE# | Write Enable | Active-low write strobe - initiates command latching and internal program/erase timing sequences. |
| VDD | Power Supply | 2.7–3.6 V supply - powers core logic and charge pump; includes on-chip VPP generation for erase/program. |
| VSS | Ground | Reference return path for all signals; two VSS balls (B1, G1) ensure low-impedance grounding in TFBGA. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with fixed 18 ms sector-erase and 70 ms chip-erase times - eliminates timing drift over lifetime, simplifying system firmware timing margins. |
| Software Data Protection | JEDEC-compliant 3-byte (program) and 6-byte (erase) command sequences - prevents accidental writes during power transitions or noise events. |
| End-of-Write Detection | DQ7 (Data# Polling) and DQ6 (Toggle Bit) status reporting - enables efficient polling without hardware wait-state generators. |
| Low Standby Current | 1 µA typical - meets stringent power budget requirements for always-on embedded controllers and IoT edge nodes. |
| RoHS Compliance | Lead-free 48-ball TFBGA (B3K) packaging - satisfies environmental compliance for global industrial and medical deployments. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing firmware images and calibration data in programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile code storage with guaranteed 100-year retention and 100,000-cycle endurance under periodic field updates. Use Value: Eliminates need for external backup batteries or EEPROM wear-leveling algorithms while maintaining JEDEC-compatible 8-bit bus interface. |
Use Scenario: Holding certified boot loader and safety-critical initialization routines in FDA-regulated diagnostic equipment requiring traceable, unalterable startup code. IC Role / Device Role / Timing Role: Secure, tamper-resistant firmware vault with hardware/software write protection and deterministic 70 ns read latency. Use Value: Meets IEC 62304 Class C software requirements through verified data retention and controlled erase granularity (4 KB sectors). |
| Automotive Body Control Module | Networking Equipment Configuration |
Use Scenario: Storing vehicle-specific configuration parameters and CAN protocol stacks in body control units exposed to automotive-grade thermal cycling (-40°C to +85°C). IC Role / Device Role / Timing Role: Industrial-temperature-rated flash memory with 2.7–3.6 V operation compatible with automotive 3.3 V rail. Use Value: Enables seamless integration into AEC-Q100-qualified designs without voltage translation or derating for ambient extremes. |
Use Scenario: Maintaining switch/router configuration profiles and firmware patches in carrier-grade Ethernet infrastructure where field upgrades occur monthly. IC Role / Device Role / Timing Role: Sector-erasable storage allowing atomic update of configuration blocks without full chip reprogramming. Use Value: Reduces downtime during remote firmware updates by limiting erase scope to modified 4 KB sectors instead of entire 2 Mbit array. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV020C-70G | 2 Mbit, 70 ns, 3.0–3.6 V operation; lacks SuperFlash fixed-timing guarantee; 10,000-cycle endurance rating. | Requires tighter firmware timing margins; not rated for industrial temperature range without derating. | Select when cost sensitivity outweighs long-term reliability requirements and board already uses MXIC footprint. |
| EN29LV020-70TP | 2 Mbit, 70 ns, 2.7–3.6 V; supports same JEDEC commands but uses different toggle-bit implementation (DQ5/DQ6 vs DQ6-only). | Requires minor driver adaptation for status polling; no A17/A18 support in 2 Mbit variant limits future scalability. | Choose for drop-in replacement where existing EN29LV020 drivers are validated and TFBGA is not required. |
Compared with MX29LV020C-70G and EN29LV020-70TP, SST39VF020-70-4C-B3KE delivers superior endurance (100k vs 10k cycles), guaranteed fixed erase timing, and native industrial-temperature support - critical for mission-critical firmware storage where field failure is unacceptable.
Availability
SST39VF020-70-4C-B3KE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, and automotive body control module applications requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for SST39VF020-70-4C-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 specializing in microcontrollers, analog devices, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its nonvolatile memory portfolio.
The SST39VF series belongs to Microchip's legacy parallel flash product line designed specifically for cost-sensitive, pin-compatible replacements of EPROM and older NOR flash in 8-bit embedded systems requiring reliable firmware storage.
FAQ
What is the maximum operating temperature range for SST39VF020-70-4C-B3KE?
The SST39VF020-70-4C-B3KE is rated for industrial operation from -40°C to +85°C, as specified in Table 6 of DS25023A. This extends beyond commercial-grade variants (0°C to +70°C) and ensures stable performance in demanding environments such as factory automation and automotive under-hood modules. The 48-ball TFBGA package maintains thermal integrity across this full range.
Does SST39VF020-70-4C-B3KE support both CE#- and WE#-controlled programming?
Yes, SST39VF020-70-4C-B3KE supports both CE#- and WE#-controlled programming, as confirmed by Figures 7 and 8 in DS25023A. The device accepts identical six-byte software data protection sequences regardless of which control signal triggers the operation, provided minimum pulse widths (TWP ≥ 40 ns, TCP ≥ 40 ns) and setup/hold times are met per Table 13.
How many address lines does SST39VF020-70-4C-B3KE require for full memory access?
SST39VF020-70-4C-B3KE requires 17 address lines (A0–A16) to access its full 256K × 8 organization. A17 is used exclusively for sector selection during erase operations and is not needed for standard read/write addressing. This matches the JEDEC-standard x8 flash pinout defined in Figure 4 for the 48-ball TFBGA package.
Is SST39VF020-70-4C-B3KE pin-compatible with SST39VF010 or SST39VF040 in the same package?
No - SST39VF020-70-4C-B3KE is not fully pin-compatible with SST39VF010 or SST39VF040 in the 48-ball TFBGA package. Per Figure 4, SST39VF010 uses A17 as NC, SST39VF020 assigns A17 as functional, and SST39VF040 adds A18. Swapping devices without PCB revision risks incorrect sector addressing or bus contention due to differing AMS (most significant address) assignments.
What is the purpose of the "B3KE" suffix in SST39VF020-70-4C-B3KE?
The "B3KE" suffix identifies the specific packaging and marking variant: B3K denotes the 48-ball TFBGA (6 mm × 8 mm) package per Microchip's ordering nomenclature, and "E" indicates tape-and-reel packaging with standard moisture sensitivity level (MSL) 3 handling. This distinguishes it from PLCC or TSOP variants (e.g., -70-4C-NHE) and confirms RoHS compliance per DS25023A footnote.
SST39VF020-70-4C-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:
- 256K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20µs
- 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
SST39VF020-70-4C-B3KE FAQ
1.How can I place an order for SST39VF020-70-4C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF020-70-4C-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 SST39VF020-70-4C-B3KE reliable?
The price and inventory of SST39VF020-70-4C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF020-70-4C-B3KE is usually 5 days.
3.What payment methods are accepted for SST39VF020-70-4C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF020-70-4C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF020-70-4C-B3KE?
SST39VF020-70-4C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF020-70-4C-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 SST39VF020-70-4C-B3KE?
For technical support, including SST39VF020-70-4C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF020-70-4C-B3KE requirements.
6.How does Aetrix verify that SST39VF020-70-4C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST39VF020-70-4C-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 SST39VF020-70-4C-B3KE meets industry standards.
7.What is the process for return or replacement of SST39VF020-70-4C-B3KE?
All SST39VF020-70-4C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF020-70-4C-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 SST39VF020-70-4C-B3KE part is unused and in its original packaging.
Return procedure for SST39VF020-70-4C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39VF020-70-4C-B3KE Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
