Infineon Technologies S29AL016J55TFIR20

Overview

S29AL016J55TFIR20 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 5 V or 12 V required-and integrates hardware reset (RESET#), ready/busy (RY/BY#), and write-protect (WP#) for embedded boot code storage in automotive ECUs.

For engineers reviewing the S29AL016J55TFIR20 datasheet, S29AL016J55TFIR20 pinout, S29AL016J55TFIR20 application, or S29AL016J55TFIR20 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, erase suspend/resume capability, and industrial/automotive temperature support without external voltage translation.

Technical Context

The S29AL016J55TFIR20 implements a command-register-driven state machine supporting JEDEC-standard single-power-supply Flash commands-including autoselect, unlock bypass, sector erase, chip erase, and secured silicon sector access. Its architecture uses Fowler-Nordheim tunneling for erase and hot electron injection for program operations, with internal voltage generation eliminating need for VPP.

It features dual-mode data interface (x8/x16 configurable via BYTE#), hardware-based sector locking/unlocking, temporary unprotect for field updates, and three power management states: active read (7 mA), standby (0.2 µA), and automatic sleep (0.2 µA). RY/BY#, DQ7 polling, and DQ6 toggle bits provide concurrent operation status feedback during erase/program cycles.

Key Specifications

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048, 0.8 mm pitch, 8.15 mm × 6.15 mm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL016S55TFIR20 and MX29LV160EBTI-70G, the S29AL016J55TFIR20 uniquely combines AEC-Q100 Grade 1 qualification, secured silicon sector, and erase suspend-making it the only option among the three qualified for safety-critical automotive boot applications requiring both security and real-time firmware update concurrency.

Availability

S29AL016J55TFIR20 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, telematics gateways, and railway signaling modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for S29AL016J55TFIR20 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 focused on power systems and IoT, delivering high-reliability silicon for automotive, industrial, and communications markets since 1999.

The S29AL016J belongs to Infineon's legacy Cypress Flash memory product line, engineered specifically for robust, in-system programmable boot code storage in safety- and mission-critical embedded systems where data integrity, long-term retention, and hardware-level protection are mandatory.

FAQ

Is S29AL016J55TFIR20 pin-compatible with earlier S29AL016D variants?

Yes-S29AL016J55TFIR20 maintains identical pinout and software command compatibility with the S29AL016D, including TSOP and BGA packages. The J-series is manufactured on 110 nm process and fully backward-compatible, enabling drop-in replacement without PCB or firmware changes.

What does the "FIR20" suffix indicate in S29AL016J55TFIR20?

The "FIR20" suffix denotes a 48-ball Fine-pitch BGA package (VBK048), RoHS-compliant, tape-and-reel packaging (2000 units per reel), and industrial temperature grade (–40°C to +85°C). It does not imply automotive qualification-the AEC-Q100 Grade 1 rating applies to the base S29AL016J die, independent of packaging suffix.

Can the secured silicon sector be reprogrammed after factory lock?

No-the secured silicon sector can be programmed and permanently locked either at the factory or by the customer using a specific command sequence; once locked, it cannot be unlocked or rewritten. This ensures irreversible device identity binding for anti-counterfeiting and secure boot chain enforcement.

Does S29AL016J55TFIR20 support simultaneous read and erase operations?

It supports Erase Suspend/Erase Resume: an ongoing sector erase can be suspended to read from or program any *other* sector, then resumed. True concurrent read-while-erase is not supported-only read-from-unselected-sectors during erase of a different sector.