Infineon Technologies S29AL016J70TFI023

Overview

S29AL016J70TFI023 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 supports in-system programming via standard 3.0 V VCC - no 12 V VPP required - and is used for automotive firmware storage, industrial boot code retention, and embedded controller program memory.

For engineers reviewing the S29AL016J70TFI023 datasheet, S29AL016J70TFI023 pinout, S29AL016J70TFI023 application, or S29AL016J70TFI023 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, erase suspend/resume capability, and RY/BY# hardware status signaling.

Technical Context

The S29AL016J70TFI023 implements a command-register-driven state machine for erase and program operations, using internally generated high-voltage pulses via Fowler-Nordheim tunneling (erase) and hot electron injection (program). Its architecture includes dedicated Secured Silicon Sector (128-word/256-byte) with factory- or customer-programmable 8-word electronic serial number.

It features dual power-saving modes - automatic sleep (0.2 µA) and standby (0.2 µA) - and hardware-level protections: VCC detector inhibiting writes during power transitions, WP#-controlled boot-sector lock, and hardware RESET# for immediate operation termination and array read recovery. Sector group protection allows selective locking/unlocking via command sequences or programming equipment.

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 S29GL016S70TFI010 and MX29LV160ETTI-70G, the S29AL016J70TFI023 delivers superior endurance (10×), certified automotive operation, hardware-assisted secure identity, and flexible package options - making it the only choice for safety-critical or long-lifecycle embedded boot memory.

Availability

S29AL016J70TFI023 is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC program retention, and medical imaging system boot ROMs requiring stable component supply across extended product lifecycles.

Supply support for S29AL016J70TFI023 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 acquired Cypress Semiconductor in 2020 and now owns and supports the full S29AL Flash portfolio. Infineon is a global leader in semiconductor solutions for automotive, industrial, and power management applications.

The S29AL series was originally developed by Cypress for high-reliability embedded boot memory, emphasizing AEC-Q100 qualification, sector-level security, and seamless in-system firmware updates - targeting automotive, industrial control, and medical electronics.

FAQ

Is S29AL016J70TFI023 pin-compatible with earlier S29AL016D devices?

Yes - the S29AL016J70TFI023 maintains identical pinout and software command compatibility with the S29AL016D, as confirmed in Infineon's migration documentation. It is manufactured on a 110 nm process but retains full functional and mechanical equivalence, enabling drop-in replacement in existing TSOP-48 and VBK048 designs without layout changes.

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

The BYTE# pin selects between x8 and x16 data bus configurations: when pulled high, the device operates in 16-bit word mode (DQ15–DQ0 active); when pulled low, it operates in 8-bit byte mode (DQ7–DQ0 active). This allows hardware flexibility to match microcontroller bus width without requiring external multiplexing or glue logic.

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

The Secured Silicon Sector is a dedicated 256-byte region with factory- or customer-programmable 16-byte electronic serial number. Unlike standard sectors, it supports permanent locking via command sequence and cannot be erased by standard sector or chip erase commands - ensuring immutable device identity for security-critical applications like automotive telematics or medical device certification.

Can WP# protect both top and bottom boot sectors simultaneously?

No - WP# protects only the boot sector selected by the hardware boot configuration (top or bottom 16 KB), as determined by package-specific strapping or board-level routing. The unprotected boot sector remains writable unless locked via software sector protection commands. This design prevents accidental corruption of primary boot code while allowing controlled updates to secondary firmware partitions.