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Infineon Technologies S29GL256N90TFIR23
- Part No.:
- S29GL256N90TFIR23
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 56-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29GL256N90TFIR23.pdf
- Description:
- IC FLASH 256MBIT PARALLEL 56TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,346
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Product details
Overview
S29GL256N90TFIR23 from Cypress Semiconductor is a 256 Mbit (33,554,432-byte), 16-bit-wide, single-supply 3.0 V page flash memory manufactured on 110 nm MirrorBit technology, featuring 90 ns access time, 100,000 erase cycles per sector, and 20-year data retention. It supports flexible sector architecture with 256 × 128 Kbyte sectors, Secured Silicon Sector with 128-word electronic serial number, and operates in 1.65–3.6 V VIO range for mixed-voltage system compatibility.
For engineers reviewing the S29GL256N90TFIR23 datasheet, S29GL256N90TFIR23 pinout, S29GL256N90TFIR23 application, or S29GL256N90TFIR23 equivalent, key selection criteria include JEDEC-compliant command set, hardware reset (RESET#) and ready/busy (RY/BY#) signaling, Enhanced VersatileI/O™ voltage flexibility, and factory-recommended migration path to S29GL256S.
Technical Context
This device implements a sector-erase flash architecture with separate CE#, WE#, and OE# controls, enabling independent read/erase/program operations without disturbing other sectors. Its command-set compatibility with JEDEC JESD21-C ensures interoperability with legacy host firmware and boot loaders.
The 8-word page read buffer and 16-word write buffer reduce effective latency during burst reads and multi-word programming. The VIO pin dynamically sets input/output voltage thresholds across address, control, and DQ lines-supporting seamless integration into both 1.8 V and 3.0 V host systems without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (33,554,432 bytes), organized as 16,777,216 × 16-bit words |
| Access Time | 90 ns at VCC = 3.0–3.6 V, VIO = 3.0–3.6 V - enables fast boot code execution in embedded hosts |
| Erase Cycles | 100,000 per sector - supports field firmware updates over extended product lifetime |
| Data Retention | 20 years typical - ensures long-term reliability in industrial and automotive storage applications |
| Supply Voltage | VCC = 2.7–3.6 V; VIO = 1.65–3.6 V - allows operation in mixed-voltage SoC interfaces |
| Page Read Buffer | 8-word (16-byte) depth - reduces sequential read latency by minimizing address setup overhead |
| Write Buffer | 16-word (32-byte) depth - accelerates multi-word programming by batching internal write cycles |
Pinout & Package
Package: 56-pin TSOP (Thin Small Outline Package), standard footprint compliant with JEDEC MO-142AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A23 | Address Inputs | 24-bit address bus supporting full 256 Mbit addressing (A23 valid); BYTE# selects 8- or 16-bit mode |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; functions as 8-bit when BYTE# = low |
| CE# | Chip Enable | Active-low chip select; enables device for read/erase/program operations |
| OE# | Output Enable | Active-low output gate; controls data bus drivers during read cycles only |
| WE# | Write Enable | Active-low control for latching addresses/data during command sequences and programming |
| RESET# | Hardware Reset | Active-low asynchronous reset; terminates ongoing operations and returns device to read mode |
| RY/BY# | Ready/Busy Output | Open-drain status signal indicating active erase/program cycle completion |
| WP#/ACC | Write Protect / Accelerated Program | Low = sector protection; high + VCC = accelerated programming via higher current injection |
| VIO | I/O Voltage Reference | Sets logic threshold for all address/control/DQ pins - enables 1.8 V or 3.0 V system interfacing |
| VCC, VSS | Power Supply / Ground | Single 3.0 V supply powers all operations; no auxiliary voltage required |
Key Features
| Feature | Design Value |
|---|---|
| Secured Silicon Sector | 128-word (256-byte) factory- or customer-programmable region with permanent lock and 8-word electronic serial number for secure device identification |
| Program/Erase Suspend | Allows pausing active program or erase in one sector to read/program another - essential for real-time firmware update without interrupting system operation |
| Enhanced VersatileI/O™ | VIO pin configures all I/O voltage thresholds dynamically - eliminates need for external level shifters in heterogeneous voltage designs |
| CFI Compliance | Common Flash Interface support enables automatic device detection and parameter retrieval by host BIOS/bootloader without hard-coded timing tables |
| Password Sector Protection | 64-bit user-defined password prevents unauthorized erase/write to protected sectors - meets basic secure boot partitioning requirements |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Boot Memory |
|---|---|
|
Use Scenario: Storing firmware and configuration data in programmable logic controllers operating in wide-temperature industrial environments. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic 90 ns read access to initialization code during cold start. Use Value: 20-year data retention and 100,000 erase cycles ensure reliable field updates across 15+ year product lifecycles without replacement. |
Use Scenario: Hosting boot code and calibration tables in digital instrument clusters requiring AEC-Q100-compliant storage. IC Role / Device Role / Timing Role: Primary flash memory mapped to CPU address space for direct XIP (eXecute-In-Place) execution of startup routines. Use Value: Secured Silicon Sector enables unique vehicle VIN binding; password protection prevents tampering with safety-critical display firmware. |
| Medical Imaging System Configuration | Telecom Base Station Field Upgrade Storage |
|
Use Scenario: Holding calibration profiles and regulatory compliance parameters in FDA-cleared diagnostic imaging equipment. IC Role / Device Role / Timing Role: Secure, write-protected non-volatile memory for immutable configuration data accessed during power-on self-test. Use Value: Persistent Sector Protection + Password Sector Protection satisfies IEC 62304 software lifecycle requirements for locked configuration integrity. |
Use Scenario: Storing field-upgradable firmware images in carrier-grade wireless base stations deployed in remote locations. IC Role / Device Role / Timing Role: Dual-bank capable flash supporting atomic firmware swap via sector erase and reprogramming without service interruption. Use Value: Program Suspend/Resume enables background firmware download while maintaining real-time radio control plane operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL256S11TFI020 | Successor part; 110 nm → 65 nm MirrorBit process; 110 ns access; CFI v1.4; enhanced RESET# timing | Requires updated timing margins in host controller; supports newer CFI query structures | Recommended for new designs requiring extended lifecycle support and improved power efficiency |
| MX29GL256FHI-90G | Macronix pin-compatible alternative; 90 ns access; same TSOP-56 package; JEDEC command set compatible | No Secured Silicon Sector or password protection; lacks VIO voltage flexibility (fixed 3.0 V I/O) | Valid drop-in replacement where security features and mixed-voltage operation are not required |
Compared with S29GL256N90TFIR23, the S29GL256S offers longer-term availability and tighter RESET# specifications but requires firmware timing updates, while the MX29GL256FHI-90G provides immediate mechanical compatibility at the cost of security and voltage adaptability.
Availability
S29GL256N90TFIR23 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 despite end-of-life status.
Supply support for S29GL256N90TFIR23 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 global leader in embedded solutions, specializing in high-reliability memory, microcontrollers, and connectivity ICs for industrial, automotive, and consumer applications.
The S29GL-N family was designed specifically for embedded systems requiring robust, JEDEC-standard flash memory with advanced security, mixed-voltage interface, and field-upgrade capability - targeting boot code, firmware, and configuration storage in mission-critical devices.
FAQ
Is S29GL256N90TFIR23 still in production?
No - Cypress officially retired the S29GL-N family and does not recommend it for new designs. Production ended prior to 2016, and remaining stock is limited to legacy replenishment. Aetrix Electronics maintains traceable inventory for ongoing support of installed base systems, with full documentation and lifecycle coordination services.
What is the function of the WP#/ACC pin?
The WP#/ACC pin serves dual roles: when pulled low, it protects the first or last sector from accidental erase/write; when driven high at VCC level, it enables accelerated programming by increasing internal current injection, reducing write time during high-throughput manufacturing or field updates.
Can S29GL256N90TFIR23 operate in a 1.8 V system?
Yes - via the VIO pin. When VIO is set to 1.8 V, all address, control, and DQ inputs/outputs conform to 1.8 V logic thresholds, enabling direct interface with 1.8 V SoCs or FPGAs without external level shifters, while VCC remains at 3.0 V for core flash operation.
How does the Secured Silicon Sector differ from standard flash sectors?
The Secured Silicon Sector is a dedicated 128-word (256-byte) region that can be permanently locked after programming. Once locked, its contents - including an 8-word electronic serial number - cannot be erased or rewritten, providing immutable device identity and secure boot root-of-trust functionality not available in standard user-addressable sectors.
S29GL256N90TFIR23 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- GL-N
- 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, 16M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 90ns
- Access Time:
- 90 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSOP
S29GL256N90TFIR23 FAQ
1.How can I place an order for S29GL256N90TFIR23 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29GL256N90TFIR23 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 S29GL256N90TFIR23 reliable?
The price and inventory of S29GL256N90TFIR23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29GL256N90TFIR23 is usually 5 days.
3.What payment methods are accepted for S29GL256N90TFIR23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29GL256N90TFIR23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S29GL256N90TFIR23?
S29GL256N90TFIR23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29GL256N90TFIR23 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 S29GL256N90TFIR23?
For technical support, including S29GL256N90TFIR23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29GL256N90TFIR23 requirements.
6.How does Aetrix verify that S29GL256N90TFIR23 is sourced from the original manufacturer or authorized distributors?
All S29GL256N90TFIR23 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 S29GL256N90TFIR23 meets industry standards.
7.What is the process for return or replacement of S29GL256N90TFIR23?
All S29GL256N90TFIR23 units undergo pre-shipment inspection (PSI). If there is an issue with S29GL256N90TFIR23, 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 S29GL256N90TFIR23 part is unused and in its original packaging.
Return procedure for S29GL256N90TFIR23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S29GL256N90TFIR23 Tags
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