Infineon Technologies S29GL128P90TFCR20

Overview

S29GL128P90TFCR20 from Cypress Semiconductor is a 128 Mbit (16 MB), 3.0 V-only page-mode NOR Flash memory fabricated on 90 nm MirrorBit process technology. It delivers 90 ns random access time and 25 ns page access time, features a 32-word/64-byte write buffer and uniform 64 Kword sectors (128 total), and operates across –40°C to +85°C industrial temperature range in 56-pin TSOP package.

For engineers reviewing the S29GL128P90TFCR20 datasheet, S29GL128P90TFCR20 pinout, S29GL128P90TFCR20 application, or S29GL128P90TFCR20 equivalent, key selection criteria include sector erase endurance (100,000 cycles), data retention (20 years), VersatileI/O™ voltage flexibility (VIO = 1.65–VCC), CFI compliance, and hardware reset (RESET#) with Ready/Busy# status signaling.

Technical Context

This device implements a synchronous/asynchronous hybrid interface with byte/word configuration selectable via BYTE# input, and supports both standard and unlock-bypass programming modes. Its internal state machine handles embedded erase and program algorithms, with status reported via RY/BY# and dedicated status bits.

The Secured Silicon Sector provides factory- or customer-programmable 128-word electronic serial number, while Advanced Sector Protection uses persistent lock bits and password methods. The WP#/ACC pin enables dual-function control: sector write protection at VIL and VHH-accelerated programming during production.

Key Specifications

Pinout & Package

Package: 56-pin Thin Small Outline Package (TSOP), standard pinout (TSO56), lead-free (Pb-free), industrial temperature grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL128S90TFIR20, this TSOP variant offers easier prototyping and rework; versus MX29GL128FHT2I-90G, it provides stronger security through Secured Silicon Sector and more flexible VersatileI/O™ voltage scaling.

Availability

S29GL128P90TFCR20 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code, and medical imaging system BIOS requiring stable component supply and long-term lifecycle support.

Supply support for S29GL128P90TFCR20 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-performance memory, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.

The S29GL-P series was designed specifically for embedded systems requiring robust, high-density NOR Flash with fast random access, secure sector protection, and extended data retention - targeting boot code, firmware, and configuration storage.

FAQ

What is the maximum operating temperature range for S29GL128P90TFCR20?

The S29GL128P90TFCR20 is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all electrical parameters including access time, programming voltage margins, and erase endurance. The device undergoes full characterization and screening per AEC-Q100 stress test conditions for automotive-adjacent applications.

Does S29GL128P90TFCR20 support both 8-bit and 16-bit data bus configurations?

Yes, the BYTE# input pin controls bus width: when pulled low, the device operates in 8-bit mode with DQ0–DQ7 active and DQ15/A-1 repurposed as address bit A-1; when high, it operates in 16-bit mode with DQ0–DQ15 active. This dual-mode capability enables direct interfacing with 8-bit microcontrollers and 16-bit DSPs without external glue logic.

How does the WP#/ACC pin function in normal operation versus programming acceleration?

In normal operation, WP#/ACC at VIL protects the highest or lowest sector (configurable via model number) from accidental erase or program. During high-volume manufacturing, applying VHH (12 V) to WP#/ACC automatically enters unlock-bypass mode, eliminating command overhead and reducing single-word programming time from 60 µs to 13.5 µs - increasing throughput by 4.5×.

Is the Secured Silicon Sector pre-programmed and locked at the factory?

The Secured Silicon Sector is delivered unprogrammed and unlocked. Customers may optionally request factory programming and locking of the 128-word region with an 8-word electronic serial number. Once locked, the sector becomes permanently read-only and immune to erase commands - providing hardware-enforced uniqueness for device authentication and anti-cloning.