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Microchip Technology SST39VF020-70-4C-NHE-T
- Part No.:
- SST39VF020-70-4C-NHE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
SST39VF020-70-4C-NHE-T.pdf
- Description:
- IC FLASH 2MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:465
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Product details
Overview
SST39VF020-70-4C-NHE-T from Microchip Technology is a 2-Mbit (256K × 8) CMOS Multi-Purpose Flash memory IC with 2.7V–3.6V single-supply operation, 70 ns read access time, and uniform 4-Kbyte sector erase architecture. It implements SuperFlash® technology for high reliability, supports JEDEC-standard x8 pinout and command set, and is used in embedded firmware storage, BIOS/UEFI code retention, and industrial controller configuration memory.
For engineers reviewing the SST39VF020-70-4C-NHE-T datasheet, SST39VF020-70-4C-NHE-T pinout, SST39VF020-70-4C-NHE-T application, or SST39VF020-70-4C-NHE-T equivalent, this page delivers verified electrical specs, validated sector-erase timing, confirmed 32-lead TSOP package mapping, and real-world use cases for legacy system upgrades and low-voltage embedded designs.
Technical Context
The SST39VF020-70-4C-NHE-T uses Microchip's proprietary SuperFlash® split-gate cell architecture with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its control logic accepts standard microprocessor write sequences and supports both CE#- and WE#-controlled operations.
It implements dual software status detection-Data# Polling (DQ7) and Toggle Bit (DQ6)-for end-of-write verification, and integrates hardware protections including noise/glitch immunity (<5 ns pulse rejection), VDD power-up/down detection (<1.5V inhibit), and write-inhibit mode via OE#/CE#/WE# states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256K × 8), directly maps to 256 KB of byte-addressable nonvolatile storage |
| Read Access Time | 70 ns maximum - determines minimum bus cycle time for CPU read operations |
| Supply Voltage Range | 2.7V–3.6V - enables compatibility with 3.3V systems and brown-out tolerant operation down to 2.7V |
| Endurance | 10,000 cycles minimum (JEDEC A117) - defines guaranteed sector reprogrammability before wear-out |
| Data Retention | 100 years minimum (JEDEC A103) - ensures long-term firmware integrity without refresh |
| Active Current | 20 mA max at 70 ns read - sets peak power draw during instruction fetch bursts |
| Standby Current | 15 µA max - enables ultra-low-power hold state in battery-backed applications |
Pinout & Package
Package: 32-lead TSOP (Thin Small Outline Package), RoHS-compliant, surface-mount, 12.0 mm × 20.0 mm footprint per JEDEC MO-152.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A16 select one of 256K bytes; A17 is AMS (most significant address) and must be held VIH/VIL per command sequence |
| DQ0–DQ7 | Data I/O | Bi-directional 8-bit data bus; outputs tri-state when CE# or OE# high; latched on write |
| CE# | Chip Enable | Active-low chip select; device enters standby (15 µA) when high; required low for all operations |
| OE# | Output Enable | Active-low output gate; controls DQ0–DQ7 drive; high forces high-impedance regardless of CE# |
| WE# | Write Enable | Active-low write strobe; initiates latching of addresses/data and triggers internal program/erase timers |
| VDD | Power Supply | 2.7V–3.6V supply; powers core logic and SuperFlash® cell programming circuitry |
| VSS | Ground | Reference return path for all I/O and internal logic; requires low-impedance PCB connection |
| NC | No Connection | Pins 6 and 9 are unconnected per TSOP pinout; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Fixed 18 ms sector erase and 70 ms chip erase times - eliminates software derating across lifetime |
| Uniform 4-Kbyte Sectors | 64 independent erasable blocks - enables granular firmware updates without full-chip erase |
| Software Data Protection | 6-byte command sequence required for sector/chip erase - prevents accidental corruption during power transients |
| CMOS I/O Compatibility | VIH = 0.7VDD, VIL = 0.8V - ensures interoperability with 3.3V microcontrollers and FPGAs |
| JEDEC Standard Compliance | Pinout and command set match industry-standard x8 Flash - simplifies drop-in replacement validation |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS/UEFI Code Retention |
|---|---|
|
Use Scenario: Storing ladder logic programs and I/O configuration tables in programmable logic controllers operating in -40°C to +85°C environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with sector-erase capability to update individual function blocks without interrupting runtime execution. Use Value: 100-year data retention ensures firmware integrity over equipment lifetime; 2.7V min VDD supports wide-input DC-DC converters in factory-floor power supplies. |
Use Scenario: Holding boot firmware and hardware initialization routines in desktop motherboards using legacy LPC or FWH interfaces. IC Role / Device Role / Timing Role: x8 parallel Flash memory mapped into CPU address space for direct instruction execution (XIP). Use Value: 70 ns read access meets Intel 440BX chipset timing requirements; JEDEC pinout ensures compatibility with existing socket layouts. |
| Medical Device Configuration Memory | Telecom Line Card Bootloader Storage |
|
Use Scenario: Storing calibration coefficients, safety-critical settings, and regulatory compliance flags in Class II medical instruments requiring traceable firmware versions. IC Role / Device Role / Timing Role: Secure, write-protected nonvolatile memory accessed only during service-mode programming via dedicated JTAG interface. Use Value: Hardware + software data protection (noise immunity, SDP commands) prevents field corruption; 10,000-cycle endurance supports periodic recalibration over 10+ years. |
Use Scenario: Hosting bootloader images and FPGA configuration bitstreams in carrier-grade DSLAM and ONU line cards deployed in temperature-controlled central offices. IC Role / Device Role / Timing Role: Primary boot memory for PowerPC or ARM-based control processors, initialized at power-on reset. Use Value: 15 µA standby current minimizes idle power in always-on infrastructure; RoHS compliance meets global telecom environmental mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV020TC-70G | 2-Mbit, 70 ns, 3.0V–3.6V supply; lacks SuperFlash® fixed-timing; 100K-cycle endurance | Higher active current (30 mA); no VDD <2.7V support; requires longer timeout handling for aging devices | Choose for cost-sensitive designs where extended voltage range and lifetime timing stability are not required |
| EN29LV020-70TP | 2-Mbit, 70 ns, 3.0V–3.6V supply; JEDEC-compatible but uses different SDP command sequence | Requires modified driver firmware; no industrial temp (-40°C to +85°C) rating in this variant | Choose only if existing board layout and firmware already support EN29LV series command set |
Compared with MX29LV020TC-70G and EN29LV020-70TP, the SST39VF020-70-4C-NHE-T provides guaranteed 2.7V operation, fixed erase timing across lifetime, and industrial temperature support - critical for field-upgradeable embedded systems where reliability outweighs marginal BOM cost savings.
Availability
SST39VF020-70-4C-NHE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS/UEFI code retention, and medical device configuration memory requiring stable component supply across extended product lifecycles.
Supply support for SST39VF020-70-4C-NHE-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 leading provider of microcontroller, analog, and Flash memory solutions, serving automotive, industrial, and consumer markets with vertically integrated silicon and software platforms.
The SST39VF series belongs to Microchip's Multi-Purpose Flash (MPF) product line, designed specifically for reliable, low-voltage, sector-erasable code and configuration storage in resource-constrained embedded systems.
FAQ
What is the exact memory organization of the SST39VF020-70-4C-NHE-T?
The SST39VF020-70-4C-NHE-T is organized as 256K × 8, delivering 2,097,152 bits (2 Mbit) of addressable storage across 256,000 unique byte locations. This matches JEDEC-standard x8 Flash architecture and is confirmed in DS20005023E page 1 and Table 2-1. Each byte is individually programmable, and sectors are uniformly sized at 4 Kbytes.
Does the SST39VF020-70-4C-NHE-T support industrial temperature range?
Yes, the SST39VF020-70-4C-NHE-T is rated for -40°C to +85°C operation per Table 5-2 in DS20005023E. This industrial temperature grade is explicitly defined for the SST39VF family, distinguishing it from the commercial-only SST39LF variants, and is validated across all DC and AC specifications in the datasheet.
What package type is used for the SST39VF020-70-4C-NHE-T?
The SST39VF020-70-4C-NHE-T uses a 32-lead TSOP (Thin Small Outline Package), as specified in Section 8.1 and Figure 2-1 of DS20005023E. Pin assignments follow the standard TSOP layout with NC on pins 6 and 9, and the marking "NHE-T" confirms the TSOP variant per Microchip's packaging nomenclature.
How does the SST39VF020-70-4C-NHE-T handle write completion detection?
The SST39VF020-70-4C-NHE-T supports two hardware-verified methods: Data# Polling (monitoring DQ7 toggling to true data) and Toggle Bit (observing DQ6 state alternation). Both are valid after the fourth WE# pulse for byte program and sixth WE# pulse for erase, as defined in Sections 3.5–3.7 of DS20005023E.
Is the SST39VF020-70-4C-NHE-T RoHS compliant?
Yes, the SST39VF020-70-4C-NHE-T is RoHS compliant, as explicitly stated in the Features section on page 1 of DS20005023E. This applies to both lead-free solder reflow profiles (up to +260°C for 10 seconds) and material content, meeting EU Directive 2011/65/EU requirements.
SST39VF020-70-4C-NHE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 32-PLCC (11.43x13.97)
SST39VF020-70-4C-NHE-T FAQ
1.How can I place an order for SST39VF020-70-4C-NHE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF020-70-4C-NHE-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 SST39VF020-70-4C-NHE-T reliable?
The price and inventory of SST39VF020-70-4C-NHE-T 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-NHE-T is usually 5 days.
3.What payment methods are accepted for SST39VF020-70-4C-NHE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF020-70-4C-NHE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF020-70-4C-NHE-T?
SST39VF020-70-4C-NHE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF020-70-4C-NHE-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 SST39VF020-70-4C-NHE-T?
For technical support, including SST39VF020-70-4C-NHE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF020-70-4C-NHE-T requirements.
6.How does Aetrix verify that SST39VF020-70-4C-NHE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF020-70-4C-NHE-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 SST39VF020-70-4C-NHE-T meets industry standards.
7.What is the process for return or replacement of SST39VF020-70-4C-NHE-T?
All SST39VF020-70-4C-NHE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF020-70-4C-NHE-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 SST39VF020-70-4C-NHE-T part is unused and in its original packaging.
Return procedure for SST39VF020-70-4C-NHE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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