Infineon Technologies S29GL128P90TFCR23

Overview

S29GL128P90TFCR23 from Cypress Semiconductor is a 128 Mbit (16 MB) single-supply 3.0 V page-mode NOR Flash memory fabricated on 90 nm MirrorBit process technology, featuring 90 ns random access time, 25 ns page access time, and uniform 64 Kword (128 Kbyte) sector architecture with 128 sectors. It supports VersatileI/O™ (VIO = 1.65–VCC), write buffer programming (32-word/64-byte), and secured silicon sector with factory- or customer-programmable electronic serial number. Used in industrial embedded boot code storage and firmware update modules.

For engineers reviewing the S29GL128P90TFCR23 datasheet, S29GL128P90TFCR23 pinout, S29GL128P90TFCR23 application, or S29GL128P90TFCR23 equivalent, key selection criteria include 3.0 V-only operation, 100,000 erase cycles per sector, CFI compliance, hardware reset (RESET#), and WP#/ACC dual-function pin for sector protection and VHH-accelerated programming.

Technical Context

This device implements a synchronous/asynchronous hybrid interface with dedicated CE#, OE#, and WE# controls, enabling standard read, page read, and buffered program operations. Its VersatileI/O architecture decouples I/O voltage (VIO) from core supply (VCC), supporting mixed-voltage system interfacing across 1.65–3.6 V I/O ranges while maintaining 2.7–3.6 V VCC operation.

The internal state machine executes embedded algorithms for program and sector erase, signaled via RY/BY# output and status bits. Sector protection employs both persistent lock bits and password-based methods, with WP#/ACC providing hardware-level first/last sector write protection and VHH-triggered unlock bypass acceleration.

Key Specifications

Pinout & Package

Package: 56-pin TSOP (Standard Thin Small Outline Package, TSO56), lead-free (Pb-free), industrial temperature grade.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NOR Flash memory applications.

Compared with MX29GL128FPTI-90G and S29GL128S90TFI020, the S29GL128P90TFCR23 uniquely supports TSOP packaging and VersatileI/O, enabling direct integration into cost-sensitive industrial boards with mixed-voltage interfaces without level-shifting circuitry.

Availability

S29GL128P90TFCR23 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code, and medical device configuration requiring stable component supply, long-lifecycle availability, and Pb-free compliance.

Supply support for S29GL128P90TFCR23 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) designs high-reliability non-volatile memory and microcontrollers for industrial, automotive, and communications applications.

The S29GL-P series targets embedded systems requiring robust, pin-compatible NOR Flash with enhanced security, mixed-voltage flexibility, and extended endurance - specifically engineered for boot code, firmware, and configuration storage in mission-critical environments.

FAQ

What is the function of the WP#/ACC pin on S29GL128P90TFCR23?

The WP#/ACC pin serves two distinct functions: at VIL (≤0.8 V), it protects the highest or lowest address sector from program/erase operations; at VHH (11.5–12.5 V), it enables unlock bypass mode and accelerates programming throughput. Internal pull-up ensures default VIH state when unconnected, preventing accidental protection activation.

Does S29GL128P90TFCR23 support byte-wide data access?

Yes - when BYTE# is driven low (VIL), the device operates in byte mode: DQ0–DQ7 become active data lines, and DQ15/A-1 functions as the LSB address input. This enables 8-bit microcontroller interfacing without external data bus multiplexing, preserving full 128 Mbit capacity in byte-addressable configurations.

How does the Secured Silicon Sector enhance device security?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region that can be permanently locked after programming an 8-word (16-byte) electronic serial number. Once locked, contents cannot be erased or rewritten - providing immutable device identity for anti-counterfeiting, license enforcement, and secure boot chain verification in regulated industries.

Can S29GL128P90TFCR23 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes - the VersatileI/O specification explicitly permits VIO = 1.65–VCC. With VCC = 3.3 V, VIO may be set to 1.8 V, allowing direct connection to 1.8 V logic families. Input thresholds scale with VIO, and output drive strength adapts accordingly, eliminating external level translators in mixed-voltage SoC interfaces.