Infineon Technologies S29AL016J70TAI020

Overview

S29AL016J70TAI020 from Cypress Semiconductor 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 3 (–40°C to +85°C) qualification, and flexible sector architecture comprising 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, features hardware write protection via WP#, and is deployed in automotive instrument clusters for firmware storage and update.

For engineers reviewing the S29AL016J70TAI020 datasheet, S29AL016J70TAI020 pinout, S29AL016J70TAI020 application, or S29AL016J70TAI020 equivalent, key selection criteria include boot-sector configuration (top/bottom), sector lock/unlock capability, CFI compliance, RY/BY# hardware status signaling, and TSOP-48 vs. BGA package compatibility with board layout constraints.

Technical Context

The S29AL016J70TAI020 implements a command-set-compatible JEDEC single-power-supply Flash architecture with embedded program/erase algorithms that auto-timing pulse widths and verify cell margin. It uses Fowler-Nordheim tunneling for erase and hot electron injection for programming.

Its dual-mode interface supports byte (DQ7–DQ0) and word (DQ15–DQ0) configurations via BYTE# pin, while hardware features include dedicated RY/BY# for cycle completion detection, RESET# for state-machine reset, and WP# for boot-sector protection-enabling robust firmware boot integrity in safety-critical systems.

Key Specifications

Pinout & Package

Package: 48-pin TSOP (TS048), 0.55 mm pitch, 12.0 mm × 20.0 mm body. Pinout validated per Cypress Document 002-00777 Rev. *Q, Page 5 (Figure 1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29AL016J70TFI020, the TSOP-48 variant offers easier prototyping and lower assembly cost; versus MX29LV160EBTI-70G, it delivers superior security and flexibility at modest premium - critical for automotive and regulated medical use cases.

Availability

S29AL016J70TAI020 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMIs, medical diagnostic devices, and smart energy meters requiring stable component supply across extended product lifecycles.

Supply support for S29AL016J70TAI020 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

Cypress Semiconductor (now part of Infineon Technologies) is a global leader in embedded solutions, specializing in high-reliability non-volatile memory, PSoC programmable systems-on-chip, and automotive-qualified semiconductors.

The S29AL016J belongs to Cypress's legacy Spansion-branded parallel Flash product line, engineered specifically for automotive and industrial applications demanding AEC-Q100 qualification, sector-level protection, and in-system firmware upgradability.

FAQ

What boot sector configuration does S29AL016J70TAI020 support?

S29AL016J70TAI020 supports both top-boot and bottom-boot configurations, selectable via hardware strapping or command sequence. The protected 16 KB boot sector resides at the highest address (top) or lowest address (bottom) of the memory map, enabling flexible firmware partitioning for fail-safe recovery and dual-bank update schemes.

Does this device require external high-voltage programming?

No. S29AL016J70TAI020 operates exclusively from a single 2.7–3.6 V supply - no 12 V VPP or 5 V auxiliary voltage is needed for program or erase operations. Internal charge pumps generate all required high voltages, enabling true in-system programming using only the host MCU's 3.3 V I/O rails.

How is sector protection implemented physically?

Sector protection is implemented via dedicated hardware latches per sector group, controlled by WP# and command sequences. When locked, internal logic disables write/erase state-machine triggers for the selected sector(s); protection persists through power cycles and is independent of software execution state - ensuring immunity to runaway code or buffer overflow exploits.

Can the Secured Silicon Sector be reprogrammed after factory lock?

Once permanently locked at the factory, the Secured Silicon Sector cannot be reprogrammed or unlocked. If customer-lockable configuration is used, the sector may be programmed and locked in-system, but unlocking requires a specific command sequence and is only possible before final lock - after lock, the 256-byte region becomes read-only and immune to further writes or erases.