Infineon Technologies S29GL256P10TFI020
- Part No.:
- S29GL256P10TFI020
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 56-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29GL256P10TFI020.pdf
- Description:
- IC FLASH 256MBIT PARALLEL 56TSOP
- Quantity:
- Payment:

- Shipping:

Inventory:1,779
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Product details
Overview
S29GL256P10TFI020 from Cypress Semiconductor is a 256 Mbit (32 MB), 3.0 V-only page-mode Flash memory IC fabricated on 90 nm MirrorBit process technology, featuring 256 uniform 64 Kword (128 Kbyte) sectors, 25 ns page access time, and 90 ns random access time under regulated VCC. It supports VersatileI/O™ with VIO range 1.65–VCC, includes a 32-word write buffer for accelerated multi-word programming, and integrates Secured Silicon Sector with factory- or customer-programmable 8-word electronic serial number - deployed in industrial embedded boot code storage.
For engineers reviewing the S29GL256P10TFI020 datasheet, S29GL256P10TFI020 pinout, S29GL256P10TFI020 application, or S29GL256P10TFI020 equivalent, key selection criteria include sector architecture uniformity, VIO voltage flexibility, WP#/ACC dual-function pin behavior, and CFI-compliant interface compatibility for legacy BIOS and firmware update systems.
Technical Context
This device implements a synchronous command-set architecture with autoselect, page read, and unlock-bypass programming modes. Its internal state machine handles erase suspend/resume, ready/busy status reporting via RY/BY#, and hardware reset recovery - all operating within a single 2.7–3.6 V supply rail while decoupling I/O voltage level via dedicated VIO pin.
The 56-pin TSOP package supports byte/word configuration via BYTE# input, enabling DQ0–DQ7 (byte) or DQ0–DQ15 (word) data bus operation. Sector protection uses persistent lock bits and password methods, with WP#/ACC providing both hardware write protection and VHH-accelerated programming when asserted high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB) organized as 256 × 64 Kword sectors |
| Page Access Time | 25 ns - enables fast sequential instruction fetch from boot ROM regions |
| Random Access Time | 90 ns at regulated VCC (3.0–3.6 V) - meets timing for legacy x86 and ARM boot loaders |
| Write Buffer Size | 32 words (64 bytes) - reduces effective programming time by >4× vs single-word writes |
| Erase Endurance | 100,000 cycles per sector - supports field firmware updates over product lifetime |
| Data Retention | 20 years typical - ensures long-term reliability in unpowered industrial storage |
| VIO Range | 1.65 V to VCC - allows interfacing with mixed-voltage SoCs without level shifters |
| Operating Temp | –40°C to +85°C (Industrial grade) - qualified for extended-temperature embedded control |
Pinout & Package
Package: 56-pin Thin Small Outline Package (TSOP), standard pinout (TSO56), lead-free (Pb-free), industrial temperature grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A23–A0 | Address Inputs | 24-bit address bus supporting full 256 Mbit addressing (A23 = MSB) |
| DQ15–DQ0 | Data I/O (Word Mode) | 16-bit bidirectional data path; DQ15/A-1 serves as LSB address in byte mode |
| CE#, OE#, WE# | Chip/Output/Write Enable | Standard asynchronous NOR Flash control signals with active-low timing |
| BYTE# | Bus Width Select | VIL = byte mode (DQ0–DQ7 active); VIH = word mode (DQ0–DQ15 active) |
| VIO | Versatile I/O Supply | Independent voltage reference for all I/O pins (1.65–VCC), decoupled from core VCC |
| WP#/ACC | Write Protect / Acceleration | VIL = protects outermost sector; VHH = enables unlock-bypass programming at higher throughput |
| RY/BY# | Ready/Busy Output | Active-low open-drain signal indicating ongoing program/erase operations |
| RESET# | Hardware Reset | Asynchronous reset that aborts pending operations and returns device to read mode |
Key Features
| Feature | Design Value |
|---|---|
| Uniform Sector Architecture | 256 identical 64 Kword sectors simplify firmware partitioning and OTA update management |
| Secured Silicon Sector | 128-word (256-byte) factory- or customer-lockable region for immutable device ID or security keys |
| Advanced Sector Protection | Persistent lock bits + password method prevent unauthorized firmware modification in deployed systems |
| Suspend/Resume Capability | Allows interrupting erase/program operations to service high-priority reads - critical for real-time OS environments |
| CFI Compliance | Enables automatic detection and configuration by standard flash programming tools and BIOS implementations |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Boot Memory |
|---|---|
|
Use Scenario: Storing boot loader and real-time control firmware in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Primary nonvolatile boot memory mapped into processor address space, accessed during cold start and firmware recovery. Use Value: 20-year data retention and 100K erase cycles ensure firmware integrity across 15+ year equipment lifecycles without replacement. |
Use Scenario: Holding calibrated display graphics and safety-critical startup routines in automotive digital instrument clusters. IC Role / Device Role / Timing Role: NOR Flash executing XIP (eXecute-In-Place) code directly from memory, requiring sub-100 ns random access. Use Value: 90 ns random access and –40°C to +85°C qualification meet AEC-Q100 Grade 2 thermal requirements for dashboard electronics. |
| Medical Imaging System Configuration | Network Router Boot Image Storage |
|
Use Scenario: Storing calibration tables, sensor profiles, and regulatory compliance metadata in portable ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store with locked Secured Silicon Sector for FDA audit-trail data. Use Value: Customer-lockable 8-word electronic serial number provides traceable device identity for medical device serialization mandates. |
Use Scenario: Hosting bootloader and fail-safe recovery image in enterprise-grade Layer 3 routers requiring zero-downtime firmware upgrades. IC Role / Device Role / Timing Role: Dual-image storage partitioned across uniform sectors, enabling atomic swap during remote update. Use Value: 32-word write buffer cuts firmware patch programming time by 75%, reducing upgrade window and service interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar page-mode NOR Flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL256S10TFI020 | Successor generation using 65 nm Eclipse process; 110 ns random access; lower standby current (100 nA vs 1 µA) | Same pinout and command set but requires updated timing margins; not drop-in for legacy 90 nm designs | Select for new designs prioritizing power efficiency and longer data retention (25 years), not for direct replacement |
| MX29GL256FHT2I-90G | Macronix equivalent; 90 ns access; identical 56-pin TSOP package; supports CFI but lacks Secured Silicon Sector | No factory-programmable serial number or customer-lockable secure region - limits use in traceable or certified systems | Choose where cost sensitivity outweighs security features and serial number requirements |
Compared with S29GL256S10TFI020, this part offers proven 90 nm reliability and broader timing margin tolerance; versus MX29GL256FHT2I-90G, it delivers unique secure identity and advanced protection - making it optimal for regulated, long-lifecycle embedded deployments.
Availability
S29GL256P10TFI020 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster boot memory, and medical imaging system configuration requiring stable component supply across extended product lifecycles.
Supply support for S29GL256P10TFI020 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 computing markets.
The S29GL-P series was designed specifically for embedded systems requiring robust, pin-compatible NOR Flash with enhanced security, flexible I/O voltage, and long-term firmware storage - targeting applications where code execution-in-place and field upgradability are essential.
FAQ
Is S29GL256P10TFI020 compatible with legacy S29GL256N devices?
No, S29GL256P10TFI020 is not pin- or timing-compatible with the earlier S29GL256N generation. The P-series introduces VersatileI/O™ (VIO pin), updated command sequences, and revised AC timing parameters - requiring PCB layout and firmware driver updates for migration.
What is the function of the WP#/ACC pin during normal operation?
During normal read operation, WP#/ACC must be held at VIH (≥2.0 V). When pulled low (VIL), it permanently protects the highest or lowest sector depending on model number configuration. When driven to VHH (~11.5 V), it accelerates programming and enables unlock-bypass mode - used only during manufacturing programming.
Does this device support XIP (eXecute-In-Place) operation?
Yes, S29GL256P10TFI020 supports XIP operation due to its fast random access time (90 ns) and standard asynchronous NOR interface. Processors with appropriate memory controllers can execute code directly from its address space without copying to RAM, reducing boot latency and SRAM usage.
How is the Secured Silicon Sector programmed and locked?
The Secured Silicon Sector is programmed using standard CFI commands (e.g., Program Setup, Program Confirm) followed by Lock Setup and Lock Confirm sequences. Once locked, the 8-word electronic serial number and remaining 120 words become permanently read-only - verified by reading status register bit 6 (SEC) after lock confirmation.
S29GL256P10TFI020 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- GL-P
- Package/Case:
- 56-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 256Mbit
- Memory Organization:
- 32M x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 100ns
- Access Time:
- 100 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSOP
S29GL256P10TFI020 FAQ
1.How can I place an order for S29GL256P10TFI020 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29GL256P10TFI020 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S29GL256P10TFI020 reliable?
The price and inventory of S29GL256P10TFI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29GL256P10TFI020 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29GL256P10TFI020 transactions.
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4.How is shipping managed for S29GL256P10TFI020?
S29GL256P10TFI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29GL256P10TFI020 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S29GL256P10TFI020?
For technical support, including S29GL256P10TFI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29GL256P10TFI020 requirements.
6.How does Aetrix verify that S29GL256P10TFI020 is sourced from the original manufacturer or authorized distributors?
All S29GL256P10TFI020 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S29GL256P10TFI020 meets industry standards.
7.What is the process for return or replacement of S29GL256P10TFI020?
All S29GL256P10TFI020 units undergo pre-shipment inspection (PSI). If there is an issue with S29GL256P10TFI020, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S29GL256P10TFI020 part is unused and in its original packaging.
Return procedure for S29GL256P10TFI020:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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