Infineon Technologies S29JL064J60TFA003

Overview

S29JL064J60TFA003 from Infineon Technologies (formerly Cypress) is a 64-Mb simultaneous read/write flash memory IC, organized as 4M × 16-bit or 8M × 8-bit, operating at 3.0 V only with 60 ns access time. It features four-bank architecture enabling zero-latency concurrent read and program/erase operations, secured silicon region with factory-locked 16-byte ESN, and JEDEC-compliant CFI interface. Used in embedded boot code storage for industrial controllers requiring nonvolatile firmware persistence and in-system reprogramming.

For engineers reviewing the S29JL064J60TFA003 datasheet, S29JL064J60TFA003 pinout, S29JL064J60TFA003 application, or S29JL064J60TFA003 equivalent, key selection criteria include simultaneous bank operation capability, 256-byte secured silicon sector lockability, 60 ns tACC timing, 48-ball FBGA package compatibility, and hardware write protection via WP#/ACC pin.

Technical Context

The device implements a four-bank flash architecture (two 8 Mb + two 24 Mb banks), each with fixed sector sizes (8 KB and 64 KB), allowing any non-busy bank to be read during erase/program of another. Bank grouping is software-configurable to support custom memory partitioning for boot and application code separation.

It supports true background operations via erase suspend/resume, data# polling (DQ7), toggle bits (DQ6/DQ2), and hardware RY/BY# status signaling. Internal voltage regulation enables single 3.0 V supply for both read and program/erase functions, with automatic sleep mode entering after address stability.

Key Specifications

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048 footprint, 0.8 mm pitch, 8 mm × 10 mm body).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar flash memory applications.

Compared with S29JL064J70TFI000 and S29JL032J60TFI000, the S29JL064J60TFA003 delivers optimal balance of speed, density, and security for mid-tier industrial controllers-its 60 ns timing enables tighter real-time deadlines than the 70 ns variant, while its 64 Mb capacity avoids firmware partitioning complexity inherent in the 32 Mb alternative.

Availability

S29JL064J60TFA003 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system configuration requiring stable component supply across multi-year production programs.

Supply support for S29JL064J60TFA003 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, sensing, connectivity, and memory solutions for industrial, automotive, and IoT applications.

The S29JL064J belongs to Infineon's Simultaneous Read/Write Flash product line, engineered specifically for embedded systems demanding deterministic firmware execution alongside in-field updates without service interruption.

FAQ

What is the purpose of the WP#/ACC pin on the S29JL064J60TFA003?

The WP#/ACC pin provides dual functionality: as WP#, it permanently protects boot sectors 0, 1, 140, and 141 from accidental program/erase regardless of software sector protection status; as ACC, it enables accelerated programming at 7 µs/word when driven high during write commands. This hardware-level safeguard prevents corruption of critical boot code during system initialization or firmware updates.

How does the Secured Silicon Region differ between factory-locked and customer-lockable versions?

Factory-locked Secured Silicon Regions contain a verifiable 16-byte random Electronic Serial Number and are permanently locked by Infineon; the DQ6 indicator bit reads 0. Customer-lockable versions allow users to write arbitrary data and then permanently lock the region once-DQ6 reads 1 thereafter. Factory-locked parts cannot be replaced by customer-lockable ones due to this immutable hardware distinction.

Can the S29JL064J60TFA003 operate in both 8-bit and 16-bit data bus configurations?

Yes-the BYTE# pin selects bus width: when low, the device operates in 16-bit mode with DQ15–DQ0 active; when high, it operates in 8-bit mode with DQ7–DQ0 active and DQ15/A-1 repurposed as address bit A-1. This flexibility supports migration between microcontrollers with differing data bus widths without changing PCB layout.

What distinguishes simultaneous read/write operation from standard flash interleaving?

Simultaneous read/write uses physically independent bank circuitry-reads from one bank and writes to another occur concurrently with zero latency, unlike interleaved access which alternates cycles. The S29JL064J60TFA003's four-bank architecture guarantees true parallelism: while erasing a 64 KB sector in Bank 2, full-speed reads continue from Bank 1, 3, or 4 without pipeline stalls or wait states.