Infineon Technologies S29AS016J70BFI032

Overview

S29AS016J70BFI032 from Infineon Technologies (formerly Cypress) is a 16 Mbit, 1.8 V-only boot sector Flash memory organized as 2 M × 8-bit or 1 M × 16-bit, featuring top/bottom boot architecture, 70 ns access time, industrial-plus temperature range (–40 °C to +105 °C), and AEC-Q100 Grade 2 qualification for automotive applications.

For engineers reviewing the S29AS016J70BFI032 datasheet, S29AS016J70BFI032 pinout, S29AS016J70BFI032 application, or S29AS016J70BFI032 equivalent, key selection criteria include boot-sector protection granularity, 1.65–1.95 V single-supply operation, CFI compliance, erase suspend/resume capability, and FBGA-48 (VDF048) package compatibility with space-constrained embedded controllers.

Technical Context

This device implements a command-set-compatible JEDEC single-power-supply Flash architecture with an internal state machine managing embedded program/erase algorithms, automatic pulse width control, and margin verification. It supports both x8 and x16 bus configurations via BYTE# pin control and uses Fowler-Nordheim tunneling for erase and hot electron injection for programming.

Hardware features include RY/BY# for cycle completion detection, RESET# for state-machine reset to read mode, and WP# for hardware-level protection of outermost boot sectors. Sector group protection and temporary unprotect enable in-system firmware updates without full chip reprogramming.

Key Specifications

Pinout & Package

Package: 48-ball Fine-Pitch BGA (VDF048), 6.0 mm × 4.0 mm, bottom-side ball layout with standard I/O assignment compatible across TSOP and FBGA variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29AS016J70BFI032, the S29GL016N90TFI010 trades speed and voltage compatibility for mature 3.0 V ecosystem support, while the MX29LV160ETTI-70G omits secured silicon and automotive qualification - making the S29AS016J70BFI032 uniquely suited for safety-aware, 1.8 V embedded systems needing identity assurance.

Availability

S29AS016J70BFI032 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLC firmware storage, and medical diagnostic imaging bootloaders requiring stable component supply and long-term lifecycle support.

Supply support for S29AS016J70BFI032 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 and industrial-grade performance.

The S29AS016J belongs to Infineon's automotive-qualified parallel NOR Flash portfolio, designed specifically for mission-critical firmware storage in ECUs, gateways, and safety-relevant subsystems operating under extended temperature and vibration stress.

FAQ

Is S29AS016J70BFI032 pin-compatible with earlier Am29SL160C devices?

Yes - it is backward compatible with the 0.32 µm Am29SL160C in pinout and software command set, enabling drop-in replacement in existing designs. The S29AS016J70BFI032 retains identical TSOP-48 and FBGA-48 footprints and JEDEC-standard command sequences, though its 110 nm process delivers lower power and higher endurance.

Does this device support both top-boot and bottom-boot configurations?

Yes - the S29AS016J70BFI032 offers selectable top-boot or bottom-boot sector architecture via factory configuration. The boot block location (first or last 16 KB) is fixed per unit and indicated in the ordering code; it cannot be changed in-system.

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

The BYTE# pin determines bus width: when pulled low, the device operates in x16 mode (DQ15–DQ0 active); when high, it operates in x8 mode (DQ7–DQ0 active). This allows flexible integration with 8-bit or 16-bit microcontrollers without external data bus multiplexing.

Can the Secured Silicon Sector be reprogrammed after factory locking?

No - once permanently locked at the factory, the Secured Silicon Sector becomes read-only and cannot be erased or rewritten. Customer-lockable units may be programmed and locked in-system, but unlocking requires a specific command sequence and is only possible before final lock commitment.