Infineon Technologies S29GL032N90BAI030

Overview

S29GL032N90BAI030 from Infineon Technologies (formerly Cypress) is a 32-Mbit, 3.0-V single-power-supply MirrorBit Flash memory organized as 2,097,152 words (4,194,304 bytes), featuring 90 ns access time, 64 KB uniform sector architecture (64 sectors), and Secured Silicon Sector with factory-programmed 128-word electronic serial number. It serves as non-volatile storage for boot code and firmware in embedded control systems requiring JEDEC-compliant command-set compatibility and in-system reprogrammability.

For engineers reviewing the S29GL032N90BAI030 datasheet, S29GL032N90BAI030 pinout, S29GL032N90BAI030 application, or S29GL032N90BAI030 equivalent, key selection criteria include uniform 64 KB sector count, 1.65–3.6 V VIO voltage flexibility, hardware reset (RESET#) and ready/busy (RY/BY#) signaling, WP#/ACC accelerated programming support, and CFI compliance for host auto-identification.

Technical Context

This device implements a 16-bit-wide data bus with BYTE# input enabling optional 8-bit operation, and uses hot-electron injection for programming and hot-hole assisted erase per sector. Its command interface is fully JEDEC JESD21C compliant, supporting unlock bypass, program/erase suspend/resume, and persistent or password-based sector protection modes.

The internal state machine manages all erase and program cycles autonomously; status is reported via DQ7 data polling, DQ6/DQ2 toggle bits, or RY/BY# output. VCC detector and automatic sleep mode ensure robust power-transition immunity and low standby current (1 µA typical).

Key Specifications

Pinout & Package

Package: 48-pin TSOP (Type I, standard thin small outline package), body size 12 mm × 20 mm, lead pitch 0.5 mm. Pinout validated per Cypress/Infineon Document 001-98525 Rev. *B, Figure 1 (S29GL032N Models 03/04).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90TFI020, the TSOP-packaged S29GL032N90BAI030 offers easier prototyping and thermal management, while MX29GL320EBTI-90G trades security and advanced features for lower unit cost-making it viable only in closed, non-updatable systems.

Availability

S29GL032N90BAI030 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control module boot memory, and medical diagnostic equipment configuration requiring stable component supply, long-lifecycle support, and JEDEC-compliant Flash interoperability.

Supply support for S29GL032N90BAI030 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 systems, sensors, and memory solutions for industrial, automotive, and IoT applications.

The S29GL-N family was originally developed by Cypress Semiconductor and continues under Infineon's Flash memory portfolio, targeting high-reliability embedded systems needing secure, field-upgradable non-volatile storage with deterministic timing and long data retention.

FAQ

What is the function of the WP#/ACC pin on S29GL032N90BAI030?

The WP#/ACC pin serves dual roles: as WP# (Write Protect), it locks the first or last sector when driven LOW, overriding software protection settings; as ACC (Accelerated Program), it accepts elevated voltage (typically 5.5 V) to reduce programming time during high-throughput manufacturing. The pin's behavior is determined by voltage level and command context-not by external configuration registers.

Does S29GL032N90BAI030 support 8-bit data bus operation?

Yes-when the BYTE# input is asserted LOW, the device operates in 8-bit mode using DQ0–DQ7 only, with DQ15 functioning as A-1 to select byte lane. This mode maintains full addressability and command compatibility, enabling integration with 8-bit microcontrollers or legacy bus architectures without external data-width translation.

How does the Secured Silicon Sector differ from standard Flash sectors?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region pre-programmed at the factory with a unique 8-word electronic serial number. Once locked via command sequence, it becomes permanently read-only and immune to erase or program commands-even under accelerated voltage conditions-providing tamper-resistant device identity for licensing, authentication, or traceability.

Can S29GL032N90BAI030 be used in systems with 1.8 V I/O interfaces?

Yes-by supplying 1.8 V to the VIO pin (within its 1.65–3.6 V range), all input thresholds and output drive levels adapt to 1.8 V logic, allowing direct connection to 1.8 V microcontrollers or FPGAs without level shifters. VCC remains at 3.0 V (2.7–3.6 V) for core memory operation, ensuring full performance and reliability.