Infineon Technologies S29PL032J55BFI122

Overview

S29PL032J55BFI122 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 VersatileI/O™ supporting 3 V I/O, and persistent/password sector protection. It delivers 55 ns random access time, 20 ns page access time, and operates over 2.7–3.6 V for embedded boot code storage in industrial controllers.

For engineers reviewing the S29PL032J55BFI122 datasheet, S29PL032J55BFI122 pinout, S29PL032J55BFI122 application, or S29PL032J55BFI122 equivalent, key selection criteria include bank-level concurrent read/write operation, CFI compliance for host auto-configuration, 1 million erase/program cycles per sector, 20-year data retention, and hardware write protection via WP#/ACC pin.

Technical Context

This device implements FlexBank Architecture with four physically isolated banks (A–D), enabling zero-latency switching between read and program/erase operations in separate banks. Each bank supports independent command execution, and bank sizes are fixed per variant: Bank A = 4 Mbit, Banks B & C = 12 Mbit each, Bank D = 4 Mbit - totaling 32 Mbit.

Enhanced VersatileI/O™ configures all I/O and control pins to operate at 3 V logic levels via dedicated VIO pin, eliminating level-shifting requirements. Sector protection combines persistent locking (PPB), password-based locking (64-bit user-defined), and hardware WP# pin control for top/bottom boot blocks - all configurable in-system at VCC.

Key Specifications

Pinout & Package

Package: 8.15 mm × 6.15 mm, 48-ball Fine-pitch BGA (VBK048). RoHS-compliant, lead-free, and moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29PL032J55BFI122, the S29GL032N90TFI010 trades concurrent operation for lower unit cost, while the MX29GL320EHTI-90G offers packaging flexibility at the expense of boot-sector security and speed - making the S29PL032J55BFI122 optimal for safety-critical, update-intensive embedded systems.

Availability

S29PL032J55BFI122 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot loader, and automotive body control module applications requiring stable component supply and long-term lifecycle support.

Supply support for S29PL032J55BFI122 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 MCUs, and secure memory solutions for industrial and mission-critical systems.

The S29PL-J family was developed by Cypress (acquired by Infineon in 2020) to deliver high-reliability, concurrently operable Flash memory for real-time embedded systems requiring deterministic firmware execution and secure in-field updates.

FAQ

What is the function of the VIO pin on S29PL032J55BFI122?

The VIO pin sets the I/O voltage reference for all control inputs and data pins. For this part, VIO must be tied to 3 V to configure the device for 3 V logic levels - enabling direct interface with 3.3 V microcontrollers without level shifters. It does not affect core VCC (2.7–3.6 V) or internal charge pump operation.

Does S29PL032J55BFI122 support x8 data bus mode?

No. S29PL032J55BFI122 is strictly a 16-bit wide (x16) device. The DQ0–DQ15 bus is fixed-width; there is no x8 configuration mode or byte-enable functionality. System design must allocate a full 16-bit data path and use appropriate address alignment for word accesses.

How is sector protection implemented in hardware?

Sector protection uses three independent mechanisms: (1) WP# pin at VIL locks top/bottom boot sectors permanently until power cycle; (2) Persistent Protection Bits (PPB) stored in non-volatile latch memory; (3) 64-bit password-locked sectors requiring correct password entry before unlock. All operate at VCC level - no high-voltage programming required.

Can S29PL032J55BFI122 perform true simultaneous read and write across different banks?

Yes. The FlexBank architecture allows one bank to execute erase or program while another bank serves read requests with zero latency. Up to two simultaneous operations are supported - e.g., Bank A erase + Bank C read - confirmed by the device's RY/BY# pin behavior and status bit monitoring per bank.