Infineon Technologies S29PL032J70BAI123

Overview

S29PL032J70BAI123 from Infineon Technologies (formerly Cypress) is a 32-Mbit (2 M × 16-bit), 3.0 V-only Page Mode Flash memory with Simultaneous Read/Write capability across four independent banks, Enhanced VersatileIO™ supporting 3 V I/O, and persistent/password sector protection. It delivers 55 ns random access time, 20 ns page access time, and operates across 2.7–3.6 V for embedded boot code storage in industrial controllers.

For engineers reviewing the S29PL032J70BAI123 datasheet, S29PL032J70BAI123 pinout, S29PL032J70BAI123 application, or S29PL032J70BAI123 equivalent, key selection criteria include bank-level concurrent read/write operation, 48-ball FBGA (VBK048) package compatibility, JEDEC 42.4 command-set compliance, CFI interface support, and hardware-accelerated programming via WP#/ACC pin.

Technical Context

This device implements FlexBank Architecture with four physically isolated banks (A–D), enabling true zero-latency switching between read and erase/program operations in separate banks. Each bank supports independent sector erase and word program commands, with Bank A and D sized at 4 Mbit (4 Kw × 8 + 32 Kw × 7) and Banks B/C at 12 Mbit (32 Kw × 24) for the PL032J variant.

Enhanced VersatileIO™ fixes all I/O and control pin voltage thresholds to VIO = 3 V, eliminating level-shifting requirements in 3 V systems. The device integrates JEDEC 42.4–compliant command logic, CFI data structures for auto-configuration, and dual-sector protection modes-persistent (PPB-based) and password-locked (64-bit user-defined)-with hardware write protect (WP#) and reset (RESET#) pins.

Key Specifications

Pinout & Package

Package: 8.15 mm × 6.15 mm, 48-ball Fine-pitch BGA (VBK048), RoHS-compliant, lead-free, surface-mountable.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90TFI010 and MX29GL320EHTI-90G, the S29PL032J70BAI123 uniquely delivers bank-concurrent operation, 55 ns access speed, and dual-layer security (PPB + password), making it the only option meeting both real-time update and regulatory firmware integrity requirements.

Availability

S29PL032J70BAI123 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader deployment, and automotive body control module design requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for S29PL032J70BAI123 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 acquired Cypress Semiconductor in 2020 and now owns and supports the full S29PL-J Flash portfolio, delivering high-reliability non-volatile memory solutions for industrial, automotive, and medical markets.

The S29PL-J series was designed specifically for embedded systems requiring concurrent code execution and firmware update capability - targeting applications where downtime during field upgrades is unacceptable.

FAQ

Does S29PL032J70BAI123 support true simultaneous read and write across different banks?

Yes. The FlexBank Architecture divides the 32-Mbit array into four independent banks (A–D), allowing one bank to execute erase or program while another simultaneously serves read requests with zero latency. This is verified in Section 2 and Table 1 of datasheet 002-00615 Rev. *F, and confirmed by timing diagrams in Section 20.6.

What is the function of the VIO pin, and can it be tied to VCC?

VIO sets the voltage threshold for all I/O and control pins (DQ0–DQ15, CE#, OE#, WE#, RY/BY#, RESET#, WP#/ACC). For S29PL032J, VIO must be fixed at 3 V - it is not adjustable and must be supplied independently from VCC if VCC varies outside 2.9–3.1 V. Datasheet Section 8 specifies VIO = 3.0 V ±0.3 V.

How does Password Sector Protection differ from Persistent Sector Protection?

Persistent Sector Protection uses one-time-programmable bits (PPB) locked at VCC to permanently disable program/erase in selected sectors. Password Sector Protection requires a 64-bit user-defined key to unlock protected sectors - enabling dynamic, reversible protection for development or field service. Both are implemented per Section 11 and 13 of the datasheet.

Is the Secured Silicon Sector accessible after factory locking?

Up to 64 words are factory-locked and permanently inaccessible; up to 64 additional words are customer-lockable via command sequence. Once locked, neither portion can be unlocked or rewritten - verified in Section 13.6 and Table 1-1 of datasheet 002-00615 Rev. *F. Access requires entering the Secured Silicon Sector command sequence first.