Infineon Technologies S29AL008J55TFIR23
- Part No.:
- S29AL008J55TFIR23
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29AL008J55TFIR23.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S29AL008J55TFIR23 from Infineon Technologies (formerly Cypress) is an 8 Mbit (1 M × 8-bit / 512 K × 16-bit), 3.0 V-only boot sector Flash memory with 55 ns access time, automotive-grade AEC-Q100 Grade 1 (–40 °C to +125 °C) qualification, and flexible sector architecture including one 16 KB, two 8 KB, one 32 KB, and fifteen 64 KB sectors. It supports in-system programming via standard 3.0 V VCC, features Secured Silicon Sector with 128-word factory-programmable serial ID, and operates across 2.7–3.6 V for battery-powered automotive firmware storage.
For engineers reviewing the S29AL008J55TFIR23 datasheet, S29AL008J55TFIR23 pinout, S29AL008J55TFIR23 application, or S29AL008J55TFIR23 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, erase suspend/resume capability, and RY/BY# hardware status signaling for real-time operation monitoring.
Technical Context
The S29AL008J55TFIR23 implements a command-register-driven state machine that executes embedded algorithms for program (hot electron injection) and erase (Fowler-Nordheim tunneling), eliminating external high-voltage requirements. It supports both x8 and x16 data bus widths via BYTE# control and uses DQ15/A-1 for mode-dependent addressing or data I/O.
Hardware features include dedicated WP# for boot-sector write protection, RESET# for immediate operation abort and array read recovery, and RY/BY# for cycle completion detection-complemented by software methods (DQ7 polling, DQ6/DQ2 toggle bits). Sector group protection enables selective locking/unlocking of any sector combination in-system or via programmer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 × 8-bit or 524,288 × 16-bit) |
| Access Time (tACC) | 55 ns - enables zero-wait-state interface with high-speed microcontrollers |
| Supply Voltage Range | 2.7–3.6 V - supports wide-input battery systems without regulation overhead |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| Erase/Program Endurance | 1,000,000 cycles per sector - ensures long-term field reliability in firmware update scenarios |
| Data Retention | 20 years typical - guarantees nonvolatile storage integrity over full vehicle lifecycle |
| Power Consumption (Read) | 7 mA typical at 5 MHz - minimizes active power draw during boot code execution |
| Standby/Auto Sleep Current | 0.2 µA - enables ultra-low-power retention in always-on vehicle modules |
Pinout & Package
Package: 48-ball Fine-pitch BGA (VBK048), 0.8 mm pitch, 8.15 mm × 6.15 mm × 1.00 mm body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 1 Mbyte/512 Kword addressing space |
| DQ0–DQ14 | Data I/O (x8/x16) | Bi-directional data bus; DQ15/A-1 serves as LSB address in byte mode |
| BYTE# | Bus Width Select | Active-low input selecting 8-bit (BYTE# = L) or 16-bit (BYTE# = H) data interface |
| CE#, OE#, WE# | Chip/Output/Write Enable | Independent controls eliminate bus contention and support asynchronous read/write timing |
| WP# | Hardware Write Protect | Protects top or bottom 16 KB boot sector depending on configuration; internal pull-up |
| RY/BY# | Ready/Busy Output | Active-low open-drain signal indicating active program/erase cycle completion |
| RESET# | Hardware Reset | Aborts ongoing operation and forces device into read-array state; compatible with system reset logic |
Key Features
| Feature | Design Value |
|---|---|
| CFI Compliance | Enables host firmware to auto-detect device geometry, timing, and command set without hard-coded assumptions |
| Erase Suspend/Resume | Allows interruption of sector erase to service time-critical reads/writes elsewhere - enabling true background erase |
| Unlock Bypass Mode | Reduces multi-byte programming time by cutting required write cycles from four to two per data word |
| Secured Silicon Sector | 128-word (256-byte) factory- or customer-programmable region with lockable electronic serial number for secure device identification |
| Flexible Boot Block | Configurable top or bottom 16 KB sector for bootloader storage with independent hardware write protection via WP# |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing calibrated engine maps and diagnostic firmware in under-hood ECU modules subject to thermal cycling and vibration. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding primary startup code and runtime updateable calibration tables. Use Value: AEC-Q100 Grade 1 rating ensures reliable operation at +125 °C; sector erase allows incremental map updates without full reflash. | Use Scenario: Retaining ladder logic programs and I/O configuration in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Field-upgradable firmware storage with hardware write protection for critical boot sectors. Use Value: WP#-enabled boot-sector protection prevents accidental overwrite during remote firmware updates; 1M-cycle endurance supports decades of maintenance cycles. |
| Medical Infusion Pump Controller | Commercial HVAC System MCU |
Use Scenario: Holding safety-critical dosing algorithms and regulatory-compliant audit logs in battery-backed portable medical devices. IC Role / Device Role / Timing Role: Secure, low-power persistent memory for certified firmware and immutable device identity (via Secured Silicon Sector). Use Value: 0.2 µA auto-sleep current extends battery life; 128-word secured sector stores tamper-evident serial ID for traceability and regulatory compliance. | Use Scenario: Storing HVAC control firmware and seasonal configuration profiles in wall-mounted thermostats operating across residential temperature ranges. IC Role / Device Role / Timing Role: Cost-optimized, pin-compatible Flash replacement for legacy boot memory in energy-efficient smart controllers. Use Value: 55 ns access time eliminates wait states for 80 MHz ARM Cortex-M4 MCUs; TSOP/BGA dual-package support simplifies board redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boot-sector Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29AL008J70TFIR20 | 70 ns access time; same density, voltage, and package; lower speed grade | Acceptable where MCU clock ≤ 40 MHz or wait states are tolerable | Select when cost sensitivity outweighs performance need and thermal grade matches (also AEC-Q100 Grade 1) |
| MX29LV008CTTI-55G | Same 8 Mbit density, 55 ns, 3 V, but lacks CFI support and Secured Silicon Sector | Requires fixed host driver; no factory-locked serial ID for device authentication | Choose only if CFI auto-configuration and secure ID are not required; verify WP# behavior compatibility |
Compared with S29AL008J70TFIR20 and MX29LV008CTTI-55G, the S29AL008J55TFIR23 uniquely combines automotive-grade reliability, CFI-enabled flexibility, and cryptographically useful Secured Silicon Sector - making it optimal for safety-critical, field-upgradable systems requiring both performance and identity assurance.
Availability
S29AL008J55TFIR23 is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC program retention, and medical device boot code applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant Flash memory.
Supply support for S29AL008J55TFIR23 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and memory solutions with strong focus on reliability and industrial-grade qualification.
The S29AL008J belongs to Infineon's automotive-qualified parallel NOR Flash product line, designed specifically for mission-critical firmware storage in engine control, ADAS, and chassis systems where data integrity, endurance, and extended temperature operation are mandatory.
FAQ
Is S29AL008J55TFIR23 pin-compatible with earlier S29AL008D devices?
Yes - the S29AL008J55TFIR23 maintains identical pinout and software command compatibility with the 200 nm S29AL008D, as confirmed in the datasheet's "Manufactured on 110 nm Process Technology" section. This ensures drop-in replacement in existing designs without layout changes or firmware modification.
Does S29AL008J55TFIR23 support both x8 and x16 data bus configurations?
Yes - the device supports configurable 8-bit or 16-bit operation via the BYTE# pin. In x16 mode, DQ15–DQ0 carry word-wide data; in x8 mode, DQ15/A-1 functions as address bit A-1 while DQ7–DQ0 carry byte-wide data, as defined in the General Description and Pin Configuration sections.
What is the function of the Secured Silicon Sector, and how is it programmed?
The Secured Silicon Sector is a dedicated 128-word (256-byte) region containing an 8-word (16-byte) random Electronic Serial Number. It can be factory-programmed and locked, or customer-programmed using the Enter Secured Silicon Sector command sequence followed by standard program commands - then permanently locked via the Program Security Register command.
Can S29AL008J55TFIR23 be used in systems without a dedicated RY/BY# interrupt line?
Yes - while RY/BY# provides hardware status signaling, the device fully supports software-based operation monitoring via DQ7 (Data# Polling) and DQ6/DQ2 (toggle bits), as detailed in Sections 11.1–11.5. These methods allow complete program/erase status detection without hardware interrupt resources.
S29AL008J55TFIR23 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- AL-J
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8, 512K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
S29AL008J55TFIR23 FAQ
1.How can I place an order for S29AL008J55TFIR23 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29AL008J55TFIR23 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 S29AL008J55TFIR23 reliable?
The price and inventory of S29AL008J55TFIR23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL008J55TFIR23 is usually 5 days.
3.What payment methods are accepted for S29AL008J55TFIR23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AL008J55TFIR23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S29AL008J55TFIR23?
S29AL008J55TFIR23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29AL008J55TFIR23 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 S29AL008J55TFIR23?
For technical support, including S29AL008J55TFIR23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AL008J55TFIR23 requirements.
6.How does Aetrix verify that S29AL008J55TFIR23 is sourced from the original manufacturer or authorized distributors?
All S29AL008J55TFIR23 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 S29AL008J55TFIR23 meets industry standards.
7.What is the process for return or replacement of S29AL008J55TFIR23?
All S29AL008J55TFIR23 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL008J55TFIR23, 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 S29AL008J55TFIR23 part is unused and in its original packaging.
Return procedure for S29AL008J55TFIR23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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