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SST39VF040-70-4C-NHE

4Mbit (512Kx8) Multi-Purpose Flash, 2.7-3.6V, 70ns, PLCC-32, SuperFlash

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Manufacturer Part：

SST39VF040-70-4C-NHE

Package：

PLCC-32 (11.43 x 13.21 mm)

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Description

Product Overview

The SST39VF040-70-4C-NHE is a 4 Mbit (512K x8) CMOS Multi-Purpose Flash (MPF) manufactured with Microchip’s proprietary SuperFlash technology. Operating at 2.7V-3.6V with 70 ns access time, it features sector-erase capability with uniform 4 KByte sectors and byte-program time of 14 us typical, housed in a 32-lead PLCC package for commercial temperature range.

Key Specifications

Density 4 Mbit (512K x8)
Supply Voltage 2.7V to 3.6V
Read Access Time 70 ns
Sector Size 4 KByte uniform sectors
Sector-Erase Time 18 ms typical
Chip-Erase Time 70 ms typical
Byte-Program Time 14 us typical
Endurance 100,000 cycles typical
Data Retention > 100 years
Active Current 5 mA typical at 14 MHz
Standby Current 1 uA typical
Package PLCC-32
Operating Temperature 0C to +70C

Features

  • Single voltage read and write operations: 2.7-3.6V
  • SuperFlash technology for fixed erase/program times
  • Sector-erase capability with uniform 4 KByte sectors
  • Automatic write timing with internal VPP generation
  • End-of-write detection via Toggle Bit or Data# Polling
  • JEDEC standard Flash EEPROM pinouts and command sets
  • Hardware and Software Data Protection

Applications

  • Firmware storage and in-system updates
  • Embedded system program storage
  • Configuration data storage
  • Industrial control and automation

The SST39VF040-70-4C-NHE is a 4 Mbit (512K x8) CMOS Multi-Purpose Flash memory device manufactured with Microchip’s proprietary SuperFlash technology. The split-gate cell design and thick-oxide tunneling injector provide superior reliability compared to alternative flash approaches. Operating from a single 2.7V to 3.6V supply, the device supports fast byte-programming at 14 us typical and sector-erase operations in 18 ms typical. The SuperFlash technology ensures fixed erase and program times independent of accumulated erase/program cycles, eliminating the need for software or hardware de-rating over the device lifetime.

The SST39VF040 uses SuperFlash technology with a split-gate cell architecture. For programming, a high voltage generated internally by the charge pump causes Fowler-Nordheim tunneling through the thick oxide to inject charge onto the floating gate, raising the cell threshold. For erasure, the reverse process removes charge from the floating gate. The device performs automatic write timing with an internal VPP generator, eliminating the need for external high-voltage supplies. End-of-write detection is provided through Toggle Bit or Data# Polling methods. Hardware and software data protection schemes prevent inadvertent writes during power transitions.

Pin Name Type Function
1-8 A0-A7 Input Address inputs (low byte)
9-12 DQ0-DQ3 I/O Data inputs/outputs (low nibble)
13 GND Ground Ground reference
14-17 DQ4-DQ7 I/O Data inputs/outputs (high nibble)
18 WE# Input Write enable (active low)
19-26 A8-A18 Input Address inputs (high byte)
27 OE# Input Output enable (active low)
28 CE# Input Chip enable (active low)
30 VDD Power Supply voltage 2.7-3.6V
  • Firmware and bootloader storage in embedded systems
  • In-system programmable configuration memory
  • Industrial control program storage with field update capability
  • Consumer electronics parameter and calibration data storage
  • Networking equipment code storage and updates
Manufacturer Part Number Package Notes
Microchip SST39VF040-70-4C-WHE TSOP-32 Same density, TSOP package
Microchip SST39LF040-45-4C-NHE PLCC-32 3.0-3.6V, 45ns faster access
Microchip SST39VF020-70-4C-NHE PLCC-32 2 Mbit, lower density option
ISSI IS29GL032-90DLE PLCC-32 32Mbit, alternative flash
Microchip SST39VF040-90-4C-NHE PLCC-32 90ns slower speed grade
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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