Microchip Technology SST39VF800A-70-4I-V-CZ132

Overview

SST39VF800A-70-4I-V-CZ132 from Microchip Technology is an 8 Mbit (512K x 16) CMOS Multi-Purpose Flash memory IC with 2.7–3.6V single-supply operation, 70 ns read access time, JEDEC-standard x16 asynchronous interface, and SuperFlash split-gate technology for embedded firmware storage in industrial control systems.

For engineers reviewing the SST39VF800A-70-4I-V-CZ132 datasheet, SST39VF800A-70-4I-V-CZ132 pinout, SST39VF800A-70-4I-V-CZ132 application, or SST39VF800A-70-4I-V-CZ132 equivalent, key selection considerations include its 256-sector / 16-block erase architecture, 14 µs word-program timing, 100,000-cycle endurance, and compatibility with standard 48-pin TSOP packages used in legacy industrial PCB layouts.

Technical Context

This device implements a JEDEC-compliant x16 asynchronous flash interface with hardware/software data protection, toggle-bit and data# polling for write completion detection, and fixed-timing erase/program operations independent of wear level. Its SuperFlash cell architecture uses thick-oxide tunneling injection to achieve stable 70 ns read latency across temperature and lifetime.

It supports three distinct erase granularities-2 KWord sectors, 32 KWord blocks, and full-chip erase-with uniform timing (18 ms sector/block, 70 ms chip) and requires no external VPP supply due to on-chip charge pump generation during programming.

Key Specifications

Pinout & Package

Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, surface-mountable with standard reflow profile (260°C/10 s).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SST39VF800A-70-4I-V-CZ132, the commercial-grade variant sacrifices temperature robustness for lower unit cost, while the Macronix alternative trades guaranteed timing stability and CFI interoperability for broader distributor availability - making SST39VF800A-70-4I-V-CZ132 optimal for new industrial designs requiring long-term reliability and firmware portability.

Availability

SST39VF800A-70-4I-V-CZ132 is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and telecom infrastructure requiring stable component supply with guaranteed 10+ year lifecycle support.

Supply support for SST39VF800A-70-4I-V-CZ132 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, with acquisition of Silicon Storage Technology (SST) in 2010.

The SST39VF series belongs to Microchip's legacy parallel NOR flash product line, designed specifically for industrial and automotive applications demanding high reliability, wide voltage operation, and long-term data retention without refresh.

FAQ

What is the operating temperature range for SST39VF800A-70-4I-V-CZ132?

The SST39VF800A-70-4I-V-CZ132 is rated for industrial temperature operation from –40°C to +85°C, validated per Microchip's DS25001A datasheet. This range ensures reliable function in harsh environments such as factory floors, outdoor base stations, and vehicle under-hood locations where ambient extremes occur. The "I" suffix in the part number explicitly denotes industrial grade, distinguishing it from commercial variants.

Does SST39VF800A-70-4I-V-CZ132 require an external VPP voltage for programming?

No, SST39VF800A-70-4I-V-CZ132 does not require an external VPP voltage. It integrates an on-chip charge pump that generates the necessary high voltage for erase and program operations from the standard 2.7–3.6V VDD supply. This eliminates the need for additional power circuitry and simplifies board design - a key advantage confirmed in the DS25001A datasheet section "Automatic Write Timing".

How many erase sectors and blocks does SST39VF800A-70-4I-V-CZ132 support?

SST39VF800A-70-4I-V-CZ132 supports 256 uniform 2 KWord sectors and 16 uniform 32 KWord blocks, as specified in Table 9 of DS25001A. This granularity enables selective firmware updates - for example, modifying only the communication stack sector without affecting bootloader or calibration data stored elsewhere in the array.

Is SST39VF800A-70-4I-V-CZ132 pin-compatible with other SST39VF family members?

Yes, SST39VF800A-70-4I-V-CZ132 shares identical pinout and interface signaling with SST39VF200A and SST39VF400A in the same 48-lead TSOP package, per Figures 2–4 and Table 1 of DS25001A. Address line expansion (A18 vs. A16/A17) is handled internally - external connections remain unchanged, enabling scalable memory upgrades within the same footprint.

What methods does SST39VF800A-70-4I-V-CZ132 provide to detect program/erase completion?

SST39VF800A-70-4I-V-CZ132 provides two hardware-supported status detection methods: Data# Polling (DQ7) and Toggle Bit (DQ6). Both are accessible during active program or erase cycles and require no additional hardware - DQ7 returns complemented data until completion, while DQ6 toggles between 0 and 1 until the operation finishes, as detailed in DS25001A Sections 7–8.