Infineon Technologies S29GL032N90TFA040

Overview

S29GL032N90TFA040 from Cypress Semiconductor is a 32 Mbit (4,194,304-byte), 3.0 V single-power-supply MirrorBit Flash memory IC with uniform sector architecture (64 × 64 KB sectors), 90 ns access time, 25 ns page read time, and 48-ball fine-pitch BGA package. It serves as nonvolatile program/data storage in embedded boot code, firmware update, and configuration memory applications.

For engineers reviewing the S29GL032N90TFA040 datasheet, S29GL032N90TFA040 pinout, S29GL032N90TFA040 application, or S29GL032N90TFA040 equivalent, key selection criteria include JEDEC-compliant command set, Secured Silicon Sector with factory-programmed 128-word ESN, CFI compliance for host auto-identification, and hardware write protection via WP#/ACC pin.

Technical Context

This device implements a 16-bit wide data bus (with BYTE# configurable for 8-bit mode), uses hot-electron injection for programming and hot-hole assisted erase per sector, and supports full chip, sector, and page erase operations. Its VIO input (1.65–3.6 V) independently controls I/O voltage levels, decoupling interface logic from core VCC (2.7–3.6 V).

The command-set architecture enables Program Suspend/Resume and Erase Suspend/Resume - allowing concurrent read access to unprotected sectors during active programming or erasure. Status reporting is implemented via DQ7 Data# Polling, DQ6/DQ2 toggle bits, and RY/BY# output.

Key Specifications

Pinout & Package

Package: 48-ball fine-pitch BGA (VBK048), 8.15 mm × 6.15 mm, 0.5 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90TFA040, the TSOP variant trades package flexibility for simplified assembly, while the Macronix part omits silicon-level security features - making the Cypress device preferred for regulated, secure, or space-constrained embedded designs.

Availability

S29GL032N90TFA040 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical imaging system configuration requiring stable component supply and long-term lifecycle support.

Supply support for S29GL032N90TFA040 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 fabless semiconductor company specializing in high-reliability nonvolatile memory, PSoC programmable systems-on-chip, and USB-C/power delivery solutions.

The S29GL-N family was designed specifically for embedded systems requiring robust, JEDEC-standard Flash memory with enhanced security, suspend/resume functionality, and mixed-voltage I/O interoperability.

FAQ

Is S29GL032N90TFA040 pin-compatible with S29GL064N devices?

No. While both share the same 48-ball BGA footprint (VBK048), S29GL032N has A21 marked as No Connect, whereas S29GL064N uses A21 as a valid address line. Interchanging them causes incorrect addressing beyond 32 Mbit. The command set and timing parameters are identical, but hardware design must match density-specific pin mapping.

Does S29GL032N90TFA040 support 8-bit data bus operation?

Yes. When BYTE# is driven LOW, the device operates in 8-bit mode using DQ0–DQ7 only; DQ8–DQ15 become high-impedance. This mode is fully supported in all command sequences including read, program, and erase, and maintains full 32 Mbit addressability via A0–A20.

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

VIO sets input threshold and output drive voltage for all address, control, and data pins. It may be tied to VCC (2.7–3.6 V) for standard 3.3 V operation, or to 1.8 V for interfacing with low-voltage microcontrollers - enabling direct connection without external level shifters. Operation outside 1.65–3.6 V violates specifications.

How is the Secured Silicon Sector protected, and can it be reprogrammed?

The Secured Silicon Sector is permanently locked via persistent PPB bit or factory-fused ESN. Once secured, no further writes or erases are possible - even with Unlock Bypass or password commands. Reprogramming is physically impossible after lock activation; the sector is intended for immutable device identity or certified boot code.