My Inquiry
My Account
Microchip Technology SST39VF6401B-70-4I-B1KEVAO
- Part No.:
- SST39VF6401B-70-4I-B1KEVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF6401B-70-4I-B1KEVAO.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST39VF6401B-70-4I-B1KEVAO from Microchip is a 64 Mbit (4M × 16) Multi-Purpose Flash Plus (MPF+) memory IC with bottom-block hardware write protection, 70 ns read access time, 2.7–3.6 V single-supply operation, and JEDEC-standard x16 asynchronous interface - used for firmware storage and configuration in industrial embedded controllers and legacy boot systems.
For engineers reviewing the SST39VF6401B-70-4I-B1KEVAO datasheet, SST39VF6401B-70-4I-B1KEVAO pinout, SST39VF6401B-70-4I-B1KEVAO application, or SST39VF6401B-70-4I-B1KEVAO equivalent, key selection considerations include bottom-boot block protection (000000H–007FFFH), 100,000-cycle endurance, sector/block/chip erase support, Auto Low Power mode (3 µA), and TSOP-48/TFFBGA-48 package compatibility.
Technical Context
This device implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count and lower total energy consumption per operation versus conventional flash. It supports JEDEC-standard command sets including Software Data Protection (SDP) and Common Flash Interface (CFI) query mode.
Operation modes include standard Read (CE#/OE# low), Word-Program (7 µs typical), Sector-Erase (18 ms), Block-Erase (18 ms), Chip-Erase (40 ms), and Erase-Suspend/Resume - all controlled via six-byte command sequences with address latching on WE#/CE# edges and data latching on rising/falling edge transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), supporting 23-bit addressing (A0–A22) |
| Read Access Time | 70 ns - determines minimum bus cycle timing for CPU or controller interface |
| Supply Voltage | 2.7–3.6 V - single supply enables direct integration with 3.3 V logic systems |
| Endurance | 100,000 program/erase cycles - defines field-replaceable firmware update lifetime |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage applications |
| Block Protection | Bottom 32 KWord (000000H–007FFFH) - prevents accidental overwrite of boot code |
| Power Consumption | Active: 9 mA typ @ 5 MHz; Standby/Auto Low Power: 3 µA - reduces system-level power budget |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm) and 48-ball TFBGA (8 mm × 10 mm); this part uses TSOP-48 per suffix "B1K" and "EVAO" designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (A0–A21); AMS = A21 selects top/bottom block during erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with tri-state outputs controlled by CE#/OE# |
| WE#, OE#, CE# | Control Inputs | Standard x16 asynchronous interface controls: Write Enable, Output Enable, Chip Enable |
| WP# | Hardware Protect | Active-low input that locks bottom 32 KWord block when grounded |
| RST# | Reset Input | Hardware reset to Read mode; terminates in-progress erase/program operations |
| VDD, VSS | Power/Ground | Single 2.7–3.6 V supply; dual ground pins for noise reduction |
| NC | No Connection | Unbonded pins (A19, A20 in TSOP; multiple balls in TFBGA) - must be left floating or tied to VSS per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide tunneling injector enables fixed 7 µs program and 18 ms erase times across full lifecycle |
| Boot Block Protection | Hardware-enabled bottom 32 KWord (000000H–007FFFH) lock prevents corruption of critical startup code |
| Erase-Suspend/Resume | Allows real-time read access to non-suspended sectors during active erase - essential for multitasking firmware environments |
| Security ID Space | 256-bit factory + user programmable ID (128 + 128 bits) with lock-out capability for secure device authentication |
| Auto Low Power Mode | Reduces active read current from 9 mA to 3 µA after valid access - cuts standby power without software intervention |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded Boot Memory |
|---|---|
Use Scenario: Storing ladder logic firmware and I/O configuration tables in programmable logic controllers operating at -40°C to +85°C. IC Role / Device Role / Timing Role: Nonvolatile boot and runtime code storage with hardware write protection against field updates or EMI-induced corruption. Use Value: Bottom-block protection ensures bootloader integrity; 100-year data retention eliminates periodic refresh requirements in sealed enclosures. | Use Scenario: Replacing obsolete EPROMs in legacy medical diagnostic equipment requiring field-upgradable calibration data. IC Role / Device Role / Timing Role: x16 asynchronous interface-compatible replacement for 27C512/27C040 with identical JEDEC pinout and command set. Use Value: 70 ns access time meets timing budgets of 8/16-bit microcontrollers; sector-erase capability enables selective calibration table updates without full reflash. |
| Communications Equipment Configuration | Automotive Infotainment Module |
Use Scenario: Holding MAC addresses, channel maps, and security keys in DSLAM line cards with hot-swap capability. IC Role / Device Role / Timing Role: Secure configuration storage with CFI query support for automatic driver initialization and field diagnostics. Use Value: Security ID feature enables unique device binding; Erase-Suspend allows concurrent status polling during background firmware validation. | Use Scenario: Storing UI assets and navigation map metadata in automotive head units subject to thermal cycling and vibration. IC Role / Device Role / Timing Role: High-reliability flash memory with >100,000 endurance cycles and RoHS-compliant packaging for under-hood-adjacent modules. Use Value: SuperFlash technology delivers consistent 18 ms block erase regardless of accumulated wear - simplifies wear-leveling firmware design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6402B-70-4I-B1KEVAO | Top 32 KWord hardware protection instead of bottom; otherwise identical timing, voltage, and command set | Used where boot code resides in upper memory region (3F8000H–3FFFFFH) | Select only if board-level WP# routing matches top-block protection scheme |
| SST38VF6401-70-4I-B1KEVAO | Newer generation with same density, 70 ns speed, but enhanced reliability (200K cycles) and extended temperature range (-40°C to +105°C) | Recommended for new designs per Microchip; supports same TSOP-48 footprint and JEDEC commands | Preferred upgrade path offering longer lifecycle and broader operating margin |
Compared with SST39VF6401B-70-4I-B1KEVAO, SST39VF6402B offers inverted block protection location while SST38VF6401 provides higher endurance and extended temperature rating - both retain pin and command compatibility but differ in protection scope and longevity assurance.
Availability
SST39VF6401B-70-4I-B1KEVAO is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy embedded boot memory, and communications equipment configuration requiring stable component supply and long-term obsolescence management.
Supply support for SST39VF6401B-70-4I-B1KEVAO 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 leading provider of microcontroller, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global manufacturing and support infrastructure.
The SST39VF640xB family was designed specifically for cost-sensitive, high-reliability embedded systems requiring robust firmware storage with hardware-based boot protection and JEDEC-standard interoperability.
FAQ
What does the "B1K" suffix in SST39VF6401B-70-4I-B1KEVAO indicate?
The "B1K" suffix denotes the 48-lead TSOP package variant (12 mm × 20 mm) with standard pinout and commercial temperature grade (0°C to +70°C). It distinguishes this version from the TFBGA-48 variant ("B1E") and confirms mechanical and electrical compatibility with JEDEC MO-142 standards. SST39VF6401B-70-4I-B1KEVAO uses this TSOP-48 form factor for through-hole or surface-mount PCB integration.
Does SST39VF6401B-70-4I-B1KEVAO support both sector and block erase operations?
Yes, SST39VF6401B-70-4I-B1KEVAO supports uniform 2 KWord sector erase (18 ms typical) and uniform 32 KWord block erase (18 ms typical), initiated via JEDEC-standard six-byte command sequences. Sector erase uses command 50H with AMS–A11 address lines; block erase uses 30H with AMS–A15. Both operations honor WP# state and support Erase-Suspend/Resume functionality.
How is hardware write protection implemented in SST39VF6401B-70-4I-B1KEVAO?
SST39VF6401B-70-4I-B1KEVAO implements bottom-block hardware protection: when WP# is driven low, the bottom 32 KWord (000000H–007FFFH) is locked against program and erase operations. This protects boot code stored in the lowest memory region. If WP# floats, an internal pull-up holds it high, disabling protection - so external grounding is required for enforcement.
Is SST39VF6401B-70-4I-B1KEVAO compatible with standard x16 flash memory interfaces?
Yes, SST39VF6401B-70-4I-B1KEVAO conforms fully to JEDEC standard pin assignments and command sequences for x16 asynchronous flash memories. It supports common protocols including Software Data Protection (SDP), CFI Query, and Product Identification - enabling drop-in replacement for legacy devices like AMD AM29LV640DB or Intel TE28F640W18 without interface redesign.
What is the significance of the "Not Recommended for New Designs" status for SST39VF6401B-70-4I-B1KEVAO?
Microchip designates SST39VF6401B-70-4I-B1KEVAO as "Not Recommended for New Designs" due to the introduction of the improved SST38VF640x series, which offers higher endurance (200K cycles), extended temperature range (-40°C to +105°C), and enhanced reliability. SST39VF6401B-70-4I-B1KEVAO remains fully supported for existing designs and legacy replacements but should not be selected for newly initiated projects.
SST39VF6401B-70-4I-B1KEVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA (8x10)
SST39VF6401B-70-4I-B1KEVAO FAQ
1.How can I place an order for SST39VF6401B-70-4I-B1KEVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF6401B-70-4I-B1KEVAO 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 SST39VF6401B-70-4I-B1KEVAO reliable?
The price and inventory of SST39VF6401B-70-4I-B1KEVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF6401B-70-4I-B1KEVAO is usually 5 days.
3.What payment methods are accepted for SST39VF6401B-70-4I-B1KEVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF6401B-70-4I-B1KEVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF6401B-70-4I-B1KEVAO?
SST39VF6401B-70-4I-B1KEVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF6401B-70-4I-B1KEVAO 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 SST39VF6401B-70-4I-B1KEVAO?
For technical support, including SST39VF6401B-70-4I-B1KEVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF6401B-70-4I-B1KEVAO requirements.
6.How does Aetrix verify that SST39VF6401B-70-4I-B1KEVAO is sourced from the original manufacturer or authorized distributors?
All SST39VF6401B-70-4I-B1KEVAO 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 SST39VF6401B-70-4I-B1KEVAO meets industry standards.
7.What is the process for return or replacement of SST39VF6401B-70-4I-B1KEVAO?
All SST39VF6401B-70-4I-B1KEVAO units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF6401B-70-4I-B1KEVAO, 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 SST39VF6401B-70-4I-B1KEVAO part is unused and in its original packaging.
Return procedure for SST39VF6401B-70-4I-B1KEVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39VF6401B-70-4I-B1KEVAO 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…
