Infineon Technologies S29AL016J70TFN023

Overview

S29AL016J70TFN023 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 without high-voltage VPP, and is used for automotive boot code storage and industrial firmware retention.

For engineers reviewing the S29AL016J70TFN023 datasheet, S29AL016J70TFN023 pinout, S29AL016J70TFN023 application, or S29AL016J70TFN023 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, erase suspend capability, and RY/BY# hardware status signaling - all critical for reliable embedded firmware update and secure boot implementations.

Technical Context

The S29AL016J70TFN023 implements a command-register-driven state machine for Embedded Erase and Embedded Program algorithms, enabling automatic pulse-width control and margin verification during write/erase cycles. It supports both x8 and x16 data bus widths via BYTE# pin control, with DQ15–DQ0 for word mode and DQ7–DQ0 for byte mode.

Hardware features include dedicated RY/BY# for cycle completion detection, RESET# for immediate state-machine reset to read mode, and WP# for hardware-level boot-sector protection. Sector group locking/unlocking is supported both in-system and via programming equipment, with temporary unprotect enabling runtime code patching in locked sectors.

Key Specifications

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048, 0.8 mm pitch, 8.15 mm × 6.15 mm). Pinout validated per Infineon Document 002-00777 Rev. *Q, Figure 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL016S70TFV10 and MX29LV160DTTI-70G, the S29AL016J70TFN023 uniquely combines AEC-Q100 Grade 1 qualification, Secured Silicon Sector, and full backward compatibility with S29AL016D - making it the only choice for new automotive designs requiring drop-in replacement and secure device identity.

Availability

S29AL016J70TFN023 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, medical infusion pump controllers, and smart grid metering systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant Flash memory.

Supply support for S29AL016J70TFN023 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 ICs, and memory solutions with emphasis on reliability, safety, and energy efficiency.

The S29AL016J belongs to Infineon's legacy Cypress Flash memory product line, designed specifically for robust, in-system programmable boot code storage in automotive, industrial, and medical applications demanding high endurance and secure identification.

FAQ

Is S29AL016J70TFN023 pin-compatible with earlier S29AL016D variants?

Yes. The S29AL016J70TFN023 maintains identical pinout, command set, and electrical characteristics with the S29AL016D, including TSOP and BGA package footprints. It is manufactured on 110 nm process but retains full backward compatibility for drop-in replacement in existing designs without layout or firmware changes.

What is the function of the BYTE# pin, and how does it affect data bus configuration?

The BYTE# pin selects between x8 and x16 data bus modes: when HIGH, DQ15–DQ0 are active for 16-bit word access; when LOW, only DQ7–DQ0 are active for 8-bit byte access. This allows seamless integration with both 8-bit and 16-bit microcontrollers without external bus transceivers or glue logic.

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

The Secured Silicon Sector is a dedicated 256-byte region containing an 8-word electronic serial number. It can be permanently locked at factory or by customer via command sequence, preventing overwrite or readout after locking. Unlike standard sectors, it supports one-time programmable identity storage for anti-counterfeiting and device authentication.

Does S29AL016J70TFN023 support simultaneous read and erase operations?

It supports Erase Suspend/Erase Resume: an ongoing sector erase can be paused to read from or program another non-erasing sector, then resumed. However, true concurrent read-while-erase is not supported - the suspended erase must be explicitly resumed, and no sector may be both erased and accessed simultaneously.