Infineon Technologies S29AL008J70BFI022

Overview

S29AL008J70BFI022 from Infineon Technologies (formerly Cypress) is an 8 Mbit (1 M × 8-bit / 512 K × 16-bit), 3.0 V-only boot sector Flash memory with 55 ns access time, AEC-Q100 Grade 1 qualification (–40°C to +125°C), and flexible sector architecture comprising one 16 KB, two 8 KB, one 32 KB, and fifteen 64 KB sectors. It supports in-system programming via standard 3.0 V V_CC, features Secured Silicon Sector with 128-word factory-programmable ESN, and is packaged in 48-ball Fine-pitch BGA (VBK048, 0.8 mm pitch).

For engineers reviewing the S29AL008J70BFI022 datasheet, S29AL008J70BFI022 pinout, S29AL008J70BFI022 application, or S29AL008J70BFI022 equivalent, key selection criteria include boot-block configuration (top/bottom), hardware write protection via WP#, erase suspend/resume capability, CFI compliance for host auto-configuration, and automotive-grade reliability under extended temperature operation.

Technical Context

The S29AL008J70BFI022 implements a command-register-driven state machine for embedded program/erase algorithms, using Fowler-Nordheim tunneling for erase and hot-electron injection for programming. It supports both x8 and x16 data bus widths via BYTE# control and provides dual-sector protection modes: permanent hardware lock and temporary unprotect for in-field code updates.

Its hardware features include RY/BY# for cycle completion signaling, RESET# for immediate state-machine reset to read mode, and V_CC detector for automatic write inhibition during power transitions. The device complies fully with JEDEC JESD21-C single-power-supply Flash standards and supports CFI query mode for runtime system reconfiguration.

Key Specifications

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048), 8.15 mm × 6.15 mm × 1.00 mm, 0.8 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29AL008J70TFI020, the BGA variant offers superior thermal dissipation and board-area efficiency; versus MX29LV008CTTI-70G, it delivers certified security features and standardized interface flexibility essential for automotive and medical certification paths.

Availability

S29AL008J70BFI022 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, ADAS camera modules, and medical infusion pumps requiring stable component supply across extended product lifecycles.

Supply support for S29AL008J70BFI022 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 secure microcontrollers with ISO/TS 16949-certified manufacturing.

The S29AL008J belongs to Infineon's automotive-qualified parallel NOR Flash portfolio, designed specifically for mission-critical boot code storage in harsh-environment control units where data integrity, long-term reliability, and functional safety compliance are mandatory.

FAQ

Is S29AL008J70BFI022 pin-compatible with earlier S29AL008D variants?

Yes - the S29AL008J70BFI022 maintains identical pinout and command-set compatibility with the S29AL008D family, including TSOP and BGA packages. It is manufactured on 110 nm process but retains full software and hardware interoperability, enabling drop-in replacement without PCB or firmware changes.

How does the Secured Silicon Sector function in practice?

The Secured Silicon Sector is a dedicated 256-byte region containing an 8-word random Electronic Serial Number. It can be permanently locked at factory or by customer via command sequence. Once locked, no further writes are possible - ensuring immutable device identity for traceability, licensing, or anti-counterfeiting in regulated markets.

What is the role of BYTE# in x8/x16 configuration?

BYTE# selects data bus width: logic low configures the device for 8-bit operation (DQ7–DQ0 active, A-1 unused); logic high enables 16-bit mode (DQ15–DQ0 active, DQ15/A-1 functions as MSB). This allows single-part support of both microcontroller architectures without redesigning memory interface logic.

Does S29AL008J70BFI022 support simultaneous read-while-erase operations?

No - it supports Erase Suspend/Erase Resume, which pauses an ongoing sector erase to allow reads or writes to *other* unselected sectors. True concurrent read-while-erase is not supported; the suspended erase must be explicitly resumed to complete, preventing data corruption in active sectors.