Infineon Technologies S29JL032J70BHI313

Overview

S29JL032J70BHI313 from Infineon Technologies (formerly Cypress) is a 32-Mb simultaneous read/write flash memory organized as 4M × 8-bit or 2M × 16-bit, operating at 3.0 V only, with 70 ns access time, 4-bank architecture, and boot sector configuration. It enables zero-latency background erase/program while reading from another bank in embedded storage, firmware update, and boot code execution applications.

For engineers reviewing the S29JL032J70BHI313 datasheet, S29JL032J70BHI313 pinout, S29JL032J70BHI313 application, or S29JL032J70BHI313 equivalent, key selection criteria include simultaneous bank operation support, Secured Silicon Region lockability, JEDEC CFI compliance, hardware write protection via WP#/ACC, and FBGA/TSOP package compatibility for space-constrained industrial controllers.

Technical Context

The S29JL032J70BHI313 implements a 4-bank flash architecture where two banks operate concurrently-one for read, one for erase/program-enabling true background operations without latency. Each bank supports independent sector erase and byte/word programming under common 3.0 V supply.

It integrates hardware features including RY/BY# status signaling, RESET# for state machine recovery, BYTE# for mode selection, and WP#/ACC for dual-function write protection and program acceleration. The Secured Silicon Region provides 256-byte OTP space with factory-locked ESN and customer-lockable capability.

Key Specifications

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048 footprint), 6 mm × 8 mm, 0.8 mm ball pitch, RoHS-compliant, suitable for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29JL032J70BHI313, the S29GL032N90TFI020 trades secure silicon and zero-latency concurrency for broader voltage range and smaller die size, while the MX29GL320EHTI-90G sacrifices background operation entirely for simplified control logic and lower unit cost in non-real-time systems.

Availability

S29JL032J70BHI313 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive telematics boot memory, and medical imaging system configuration requiring stable component supply and long-term lifecycle support.

Supply support for S29JL032J70BHI313 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 strong industrial and automotive certifications.

The S29JL032J belongs to Infineon's Legacy Flash Memory product line, designed specifically for reliable, long-lifecycle embedded systems requiring deterministic real-time firmware execution and secure field updates.

FAQ

What does "simultaneous read/write" mean for S29JL032J70BHI313?

It means the device divides its array into four independent banks, allowing one bank to be erased or programmed while another bank is simultaneously read-without latency or arbitration delay. This is implemented in hardware with dedicated X/Y decoders per bank and requires no special controller logic beyond standard JEDEC command sequencing.

How is the Secured Silicon Region protected and used?

The 256-byte Secured Silicon Region includes 16 bytes of factory-programmed, verifiable electronic serial number and supports one-time customer locking. Once locked via command sequence, all bits become permanently read-only. It functions as standard flash until locked, enabling flexible use for secure keys, calibration data, or device-specific firmware signatures.

Does S29JL032J70BHI313 require external high-voltage programming?

No. It operates from a single 3.0 V supply for all functions-including read, program, and erase-using internally generated and regulated high voltages. No external VPP pin or programmer-specific voltage rails are needed, simplifying board design and enabling in-system programming with standard microcontroller GPIOs.

Can S29JL032J70BHI313 be used in both 8-bit and 16-bit systems?

Yes. The BYTE# pin selects bus width: low enables 8-bit mode (DQ7–DQ0 active, A0–A21 addressing), high enables 16-bit mode (DQ15–DQ0 active, A0–A20 addressing). Address mapping, command interpretation, and sector layout remain consistent across modes, allowing reuse of firmware drivers with minimal configuration changes.