Infineon Technologies S29GL032N90TFI043
- Part No.:
- S29GL032N90TFI043
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29GL032N90TFI043.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,940
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Product details
Overview
S29GL032N90TFI043 from Infineon Technologies (formerly Cypress) is a 32 Mbit (4,194,304-byte), 16-bit-wide single-supply MirrorBit Flash memory with 90 ns access time, uniform sector architecture (64 × 64 KB sectors), and Secured Silicon Sector for factory-programmed electronic serial number. It operates from 2.7–3.6 V VCC and 1.65–3.6 V VIO, and is used in industrial control firmware storage where deterministic boot code integrity and long-term data retention are required.
For engineers reviewing the S29GL032N90TFI043 datasheet, S29GL032N90TFI043 pinout, S29GL032N90TFI043 application, or S29GL032N90TFI043 equivalent, key selection criteria include JEDEC-compliant command set compatibility, hardware write protection via WP#/ACC, CFI interface support, and 100,000 erase cycles per sector with 20-year data retention.
Technical Context
This device implements a 110 nm MirrorBit floating-gate NAND-like cell architecture enabling single-voltage 3.0 V operation for both read and program/erase functions. It uses hot-electron injection for programming and hot-hole assisted erase, with internal voltage generators for VPP generation - eliminating need for external high-voltage supplies.
Command execution is fully asynchronous and latch-based: addresses and data are internally latched during write cycles; status is reported via DQ7 polling, DQ6 toggle bits, or RY/BY# output. Sector erase architecture supports independent erasure of any 64 KB sector without affecting others, and includes Erase Suspend/Resume and Program Suspend/Resume for concurrent background operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4,194,304 bytes), organized as 2,097,152 × 16-bit words |
| Access Time | 90 ns max at VCC = 2.7–3.6 V - enables direct connection to 10 MHz bus without wait states |
| Page Read Buffer | 8-word (16-byte) buffer with 25 ns page access - reduces sequential read latency in firmware fetch scenarios |
| Erase Endurance | 100,000 cycles per sector - supports field firmware updates over 10+ years in industrial logging applications |
| Data Retention | 20 years typical at 125°C - validated for extended deployment in automotive engine control modules |
| Supply Voltage | VCC = 2.7–3.6 V; VIO = 1.65–3.6 V - allows interoperability with 1.8 V or 3.3 V I/O domains via separate VIO rail |
| Package | 48-pin TSOP (Type I, standard thin small outline) - compatible with legacy PCB footprints and automated optical inspection |
Pinout & Package
Package: 48-pin TSOP (Type I, standard thin small outline), 12 × 20 mm body, 0.5 mm pitch, JEDEC MO-142AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address inputs | 21-bit address bus supporting full 32 Mbit addressing; A-1 used as DQ15 in x16 mode |
| DQ0–DQ15 | Data I/O bidirectional bus | 16-bit parallel interface; supports byte-wide access when BYTE# = low |
| CE# | Chip enable (active low) | Primary device select; must be asserted before WE# or OE# to initiate valid cycle |
| OE# | Output enable (active low) | Controls output drivers only; does not affect internal state or timing of ongoing operations |
| WE# | Write enable (active low) | Latches address/data on rising edge; initiates command sequences and write cycles |
| WP#/ACC | Write protect / accelerated program input | Low = hardware sector lock; high + VCC ≥ 3.0 V = accelerated programming (ACC mode) |
| RY/BY# | Ready/Busy output (open-drain) | Active-low indicator of internal operation completion; used for hardware handshaking |
| RESET# | Hardware reset input (active low) | Aborts all operations and returns device to reading array state; tied to system reset for boot recovery |
| VIO | I/O supply voltage | Defines logic thresholds for all pins except VCC/VSS; enables mixed-voltage system interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Secured Silicon Sector | 256-byte factory-lockable region with 16-byte electronic serial number - provides immutable device identity for secure boot and anti-cloning |
| Advanced Sector Protection | Persistent and password-based locking - prevents accidental or unauthorized firmware overwrite without explicit unlock sequence |
| CFI Compliance | JEDEC JESD68-defined parameter table accessible via command - enables automatic flash detection and driver configuration in BIOS/bootloader |
| Program/Erase Suspend | Pause active programming or erasing to service higher-priority reads - essential for real-time systems requiring deterministic interrupt response |
| Unlock Bypass Mode | Two-cycle programming instead of four - cuts multi-word update time by ~50% in production programming environments |
Applications
| Industrial PLC Firmware Storage | Automotive Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: Storing boot firmware and calibration maps in programmable logic controllers operating continuously in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with guaranteed read reliability during power-up and brownout conditions. Use Value: 20-year data retention and 100K erase cycles ensure firmware integrity across 15+ year equipment lifecycles without replacement. |
Use Scenario: Holding engine management software and adaptive learning parameters in Tier-1 automotive ECUs subject to AEC-Q100 Grade 2 qualification. IC Role / Device Role / Timing Role: Boot ROM with hardware reset recovery and RY/BY#-driven timing synchronization for deterministic startup. Use Value: WP#/ACC pin enables factory-programmed write protection for safety-critical code regions while allowing field updates to calibration sectors. |
| Medical Diagnostic Imaging Boot Loader | Telecom Base Station Configuration Memory |
|
Use Scenario: Secure boot loader storage in FDA-cleared imaging devices requiring traceable firmware versioning and tamper evidence. IC Role / Device Role / Timing Role: CFI-compliant flash providing self-identifying interface for bootloader auto-configuration and secure signature verification. Use Value: Secured Silicon Sector holds cryptographic keys and device-specific certificates, locked permanently after provisioning. |
Use Scenario: Storing FPGA configuration bitstreams and radio parameter tables in 5G base station remote radio units exposed to wide temperature swings. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory supporting hot-swap reconfiguration and field-upgradable RF profiles. Use Value: 90 ns access time and uniform sector layout allow rapid bitstream loading during failover events with sub-millisecond latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL032N90TFI020 | Same die, 48-ball fine-pitch BGA (VBK048) package - no TSOP footprint compatibility | Used in space-constrained designs where board area is prioritized over manual reworkability | Select when PCB layout requires BGA miniaturization and automated assembly capability is available |
| MX29GL320EBTI-90G | Micron 32 Mbit 3 V Flash; 90 ns access but lacks Secured Silicon Sector and CFI compliance | Lower-cost alternative where electronic serial number and standardized interface are not required | Choose only if firmware authentication and host-agnostic driver support are outside scope |
Compared with S29GL032N90TFI043, the BGA variant trades repairability and thermal cycling robustness for density, while the Micron part sacrifices security and interoperability features to reduce unit cost - making the TSOP-based Infineon device optimal for certified industrial and automotive deployments requiring traceability and standards alignment.
Availability
S29GL032N90TFI043 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code retention, and medical diagnostic imaging boot loader applications requiring stable component supply, long-lifecycle support, and qualified sourcing.
Supply support for S29GL032N90TFI043 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and nonvolatile memory solutions, with global R&D and manufacturing infrastructure.
The S29GL-N family was originally developed by Cypress Semiconductor and continues under Infineon's Flash Memory product line, targeting high-reliability embedded systems requiring secure, long-life, JEDEC-standard-compliant code storage.
FAQ
Is S29GL032N90TFI043 pin-compatible with earlier S29GL032N variants in TSOP packages?
Yes - all S29GL032N TSOP variants (including models ending in 040, 041, 042, and 043) share identical 48-pin Type I TSOP pinout, signal definitions, and mechanical dimensions per JEDEC MO-142AC. The suffix denotes speed grade, temperature range, and packaging detail, not functional or physical divergence.
Does S29GL032N90TFI043 support byte-wide data access?
Yes - when BYTE# is driven low, the device operates in 8-bit mode using DQ0–DQ7 only; A0–A20 remain fully functional for addressing. This mode maintains full command set compatibility and preserves all protection and suspend features without performance penalty.
What is the function of the WP#/ACC pin during normal operation?
In normal read mode, WP#/ACC is sampled at CE# assertion: low disables programming/erasing of first/last sector regardless of software protection settings; high enables ACC mode when VCC ≥ 3.0 V, reducing programming time by ~30% via internal voltage boost - intended for production-line throughput.
Can the Secured Silicon Sector be unlocked or rewritten after factory programming?
No - once the Secured Silicon Sector is locked (via command sequence or factory fuse), it becomes permanently read-only. The 16-byte electronic serial number is written during final test and cannot be altered, erased, or bypassed, ensuring cryptographically verifiable device identity throughout its lifetime.
S29GL032N90TFI043 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- GL-N
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8, 2M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 90ns
- Access Time:
- 90 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
S29GL032N90TFI043 FAQ
1.How can I place an order for S29GL032N90TFI043 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29GL032N90TFI043 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 S29GL032N90TFI043 reliable?
The price and inventory of S29GL032N90TFI043 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29GL032N90TFI043 is usually 5 days.
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S29GL032N90TFI043 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29GL032N90TFI043 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 S29GL032N90TFI043?
For technical support, including S29GL032N90TFI043 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29GL032N90TFI043 requirements.
6.How does Aetrix verify that S29GL032N90TFI043 is sourced from the original manufacturer or authorized distributors?
All S29GL032N90TFI043 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 S29GL032N90TFI043 meets industry standards.
7.What is the process for return or replacement of S29GL032N90TFI043?
All S29GL032N90TFI043 units undergo pre-shipment inspection (PSI). If there is an issue with S29GL032N90TFI043, 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 S29GL032N90TFI043 part is unused and in its original packaging.
Return procedure for S29GL032N90TFI043:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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