Infineon Technologies S29AL016J70TFN020

Overview

S29AL016J70TFN020 from Infineon Technologies (formerly Cypress) is a 16 Mbit (2M × 8-bit / 1M × 16-bit), 3.0 V-only boot sector Flash memory with 55 ns access time, AEC-Q100 Grade 1 (–40°C to +125°C) qualification, and flexible sector architecture including one 16 KB, two 8 KB, one 32 KB, and thirty-one 64 KB sectors. It operates across 2.7–3.6 V, supports in-system programming via standard 3.0 V V_CC, and integrates hardware write protection via WP# and RY/BY# for automotive firmware storage.

For engineers reviewing the S29AL016J70TFN020 datasheet, S29AL016J70TFN020 pinout, S29AL016J70TFN020 application, or S29AL016J70TFN020 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, erase suspend/resume capability, and TSOP-48 package compatibility with legacy PCB footprints.

Technical Context

The S29AL016J70TFN020 implements a command-set-compatible JEDEC single-power-supply Flash architecture with embedded program/erase algorithms that internally manage pulse timing and margin verification. It uses hot electron injection for programming and Fowler-Nordheim tunneling for erasure, with automatic pre-programming before erase cycles.

Hardware features include dedicated RY/BY# for cycle completion detection, RESET# for state-machine reset to read mode, and WP# for boot-sector lock at V_IL. Sector group protection supports in-system locking/unlocking, and Erase Suspend enables background reads/writes to non-erasing sectors during active erase operations.

Key Specifications

Pinout & Package

Package: 48-pin TSOP (Standard Thin Small Outline Package), 12 × 20 mm body, 0.5 mm lead pitch, JEDEC MO-142AC compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar boot-sector Flash memory applications.

Compared with S29AL016J70TFN020, the S29AL016J70TFI020 sacrifices automotive qualification for lower cost, while MX29LV160DTTI-70G omits secured silicon and flexible boot configuration-making the original part uniquely suited for safety-critical, identity-secured, and thermally demanding applications.

Availability

S29AL016J70TFN020 is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC configuration, and medical imaging boot memory requiring stable component supply and long-term lifecycle support.

Supply support for S29AL016J70TFN020 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

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and security solutions with vertical integration from wafer fabrication to system-level validation.

The S29AL016J series belongs to Infineon's legacy Cypress Flash portfolio, designed specifically for mission-critical embedded firmware storage where boot integrity, sector-level protection, and extended temperature resilience are mandatory.

FAQ

What is the function of the BYTE# pin on S29AL016J70TFN020?

The BYTE# pin configures the device data bus width: when pulled high, it enables 16-bit (x16) word mode with DQ15–DQ0 active; when pulled low, it enables 8-bit (x8) byte mode with DQ7–DQ0 active. This pin must be stable before power-up or reset to avoid undefined behavior and is not sampled dynamically during operation.

Does S29AL016J70TFN020 support both top-boot and bottom-boot configurations?

Yes - the boot sector location (first or last 16 KB) is determined by internal metal option and fixed at manufacturing; the "T" in the part number suffix indicates top-boot configuration. Bottom-boot variants exist (e.g., S29AL016J70BFN020), but S29AL016J70TFN020 is specifically top-boot, with WP# protecting the uppermost 16 KB sector.

How does the Secured Silicon Sector differ from standard Flash sectors?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region containing a factory-assigned 8-word electronic serial number. It can be permanently locked via command sequence to prevent reprogramming, providing immutable device identification for traceability and anti-cloning - unlike standard sectors, it cannot be erased independently and requires special unlock sequences for initial programming.

Can S29AL016J70TFN020 be used in place of older S29AL016D devices?

Yes - it is fully compatible with the 200 nm S29AL016D in pinout, command set, and software interface, while offering improved performance (55 ns vs. 70 ns), lower power consumption, and 110 nm process benefits. No hardware or firmware changes are required for drop-in replacement, though updated timing margins should be verified per AC characteristics table.