Infineon Technologies S29GL256P90TFCR10

Overview

S29GL256P90TFCR10 from Cypress Semiconductor is a 256 Mbit (32 MB), 3.0 V-only Page Flash memory IC fabricated on 90 nm MirrorBit process technology, featuring 25 ns page access time, 90 ns random access time, and uniform 64 Kword (128 KB) sector architecture with 256 sectors. It supports VersatileI/O™ (VIO = 1.65–VCC), 32-word write buffer, and Secured Silicon Sector with factory- or customer-programmable 128-word electronic serial number. Used in industrial embedded systems for firmware storage and boot code retention.

For engineers reviewing the S29GL256P90TFCR10 datasheet, S29GL256P90TFCR10 pinout, S29GL256P90TFCR10 application, or S29GL256P90TFCR10 equivalent, key selection criteria include 90 ns speed grade, TSOP-56 industrial-grade packaging, VIO-compatible I/O flexibility, sector erase endurance (100,000 cycles), and CFI-compliant interface for bootloader compatibility.

Technical Context

This device implements a synchronous/asynchronous hybrid command-set architecture with hardware reset (RESET#), Ready/Busy# status signaling, and dual protection modes-Persistent Lock Bits and Password-based Advanced Sector Protection. Its VersatileI/O control decouples I/O voltage (VIO) from core supply (VCC), enabling interoperability with 1.8 V, 2.5 V, or 3.3 V logic domains while maintaining full 3.0 V core operation.

The 32-word write buffer enables burst programming of up to 64 bytes per command, reducing effective word-program time to 15 µs (VCC) or 13.5 µs (VHH). Sector erase completes in 0.5 s typical, and data retention is rated at 20 years under industrial temperature conditions (–40°C to +85°C).

Key Specifications

Pinout & Package

Package: 56-pin Thin Small Outline Package (TSOP-II, standard pinout, Pb-free, industrial temperature range).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX29GL256FPTI-90G and S29GL256S90TFIR10, the S29GL256P90TFCR10 uniquely delivers VIO-based voltage flexibility and factory-lockable Secured Silicon Sector in a TSOP-56 industrial package-making it optimal for cost-sensitive, mixed-voltage embedded systems requiring long-term firmware integrity.

Availability

S29GL256P90TFCR10 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot memory, and medical imaging system BIOS requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P90TFCR10 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 memory, microcontrollers, and connectivity solutions for industrial, automotive, and IoT markets.

The S29GL-P family was designed specifically for embedded systems requiring robust, pin-compatible NOR flash with enhanced data security, mixed-voltage interoperability, and long-term firmware storage - targeting applications where code execution-in-place (XIP) and deterministic timing are essential.

FAQ

What is the function of the VIO pin on the S29GL256P90TFCR10?

The VIO pin sets the input/output voltage reference for all address, control, and data signals (A0–A23, CE#, OE#, WE#, DQ0–DQ15), independent of VCC. It operates from 1.65 V to VCC (2.7–3.6 V), enabling direct interface with 1.8 V or 2.5 V host processors without external level shifters - a key differentiator for mixed-voltage embedded designs.

Does the S29GL256P90TFCR10 support execute-in-place (XIP) operation?

Yes - as a standard parallel NOR flash with asynchronous read capability and 90 ns random access time, the S29GL256P90TFCR10 supports XIP directly from the memory array. Its uniform sector architecture and CFI compliance allow seamless integration with ARM Cortex-M or PowerPC boot ROMs that execute code directly from flash without copying to RAM.

How is the Secured Silicon Sector protected against unauthorized access?

The Secured Silicon Sector can be permanently locked either at the factory or by the customer using dedicated command sequences. Once locked, its 128-word region (including the 8-word electronic serial number) becomes read-only and immune to erase or program commands - enforced by on-die logic, not software - ensuring tamper-resistant device identification and key storage.

Can the S29GL256P90TFCR10 be used in place of older S29GL256N devices?

No - the S29GL256P is not a drop-in replacement for the S29GL256N. While both are 256 Mbit NOR flash, the P-series uses 90 nm MirrorBit technology with different timing (e.g., 25 ns page access vs. 30 ns on N-series), updated command set, and added features like VersatileI/O and enhanced sector protection. Board-level validation is required before substitution.