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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies S29AL008J55TFNR20

Name: S29AL008J55TFNR20
Brand: Infineon Technologies
SKU: S29AL008J55TFNR20
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29AL008J55TFNR20

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 48-TFSOP (0.724", 18.40mm Width)

Datasheet:: S29AL008J55TFNR20.pdf

Description:: IC FLASH 8MBIT PARALLEL 48TSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,196

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Product details

Overview

S29AL008J55TFNR20 from Infineon Technologies (formerly Cypress) is an 8 Mbit, 3.0 V-only boot sector Flash memory organized as 1 M × 8-bit or 512 K × 16-bit, featuring 55 ns access time, AEC-Q100 Grade 1 (–40°C to +125°C), and flexible sector architecture with 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-no 5 V or 12 V required-and integrates hardware write protection, erase suspend/resume, and CFI compliance for automotive and industrial firmware storage.

For engineers reviewing the S29AL008J55TFNR20 datasheet, S29AL008J55TFNR20 pinout, S29AL008J55TFNR20 application, or S29AL008J55TFNR20 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, RY/BY# and RESET# hardware signaling, 0.2 µA standby current, and TSOP-48 vs. VFBGA-48 package compatibility in space-constrained embedded designs.

Technical Context

The S29AL008J55TFNR20 implements a command-register-driven state machine for Embedded Erase and Embedded Program algorithms, auto-timing pulse widths and verifying cell margin without external timing control. Its dual-mode interface (x8/x16) uses DQ15/A-1 for data/LSB address multiplexing and BYTE# to select bus width.

Hardware features include a dedicated RY/BY# pin for cycle completion detection, WP# for boot-sector lock (VIL activates protection), and RESET# that terminates active operations and forces read-array mode-critical for safe microcontroller boot recovery. Sector group protection operates in-system or via programmer, with temporary unprotect enabling runtime code updates.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (1,048,576 × 8 or 524,288 × 16)
Access Time (tACC)	55 ns - enables zero-wait-state operation with high-speed MCUs
Supply Voltage	2.7–3.6 V - single-supply battery operation without voltage translation
Operating Temperature	–40°C to +125°C - AEC-Q100 Grade 1 qualified for under-hood automotive use
Erase/Program Endurance	1,000,000 cycles per sector - supports frequent firmware field updates
Data Retention	20 years typical - ensures long-term reliability in unpowered storage
Standby Current	0.2 µA - minimizes quiescent power in always-on systems

Pinout & Package

Package: 48-ball Fine-pitch VFBGA (8.15 mm × 6.15 mm × 1.00 mm, 0.8 mm pitch). Pinout validated per Infineon Document 002-00778 Rev. *Q, Figure 2 and Page 6.

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address Inputs	19-bit address bus supporting full 8 Mbit addressing in x8/x16 modes
DQ0–DQ14	Data I/O (x8 or x16)	Bi-directional data path; DQ15/A-1 serves as LSB address in byte mode
BYTE#	Bus Width Select	Active-low input determining 8-bit (high) or 16-bit (low) data interface
CE#, OE#, WE#	Chip/Output/Write Enable	Independent controls eliminate bus contention during read/write sequences
WP#	Hardware Write Protect	Locks boot sector (16 KB) when pulled low; internal pull-up ensures safe default
RY/BY#	Ready/Busy Output	Open-drain signal indicating active program/erase cycle completion
RESET#	Hardware Reset	Asynchronous reset of internal state machine to read mode-synchronizes boot firmware fetch

Key Features

Feature	Design Value
Erase Suspend/Resume	Enables background read/program in non-erasing sectors-critical for real-time firmware patching
Secured Silicon Sector	128-word factory-programmable serial number region with lockable security for device authentication
Unlock Bypass Mode	Reduces multi-byte programming time by halving required command cycles (2 vs. 4 writes)
CFI Compliance	Standardized JEDEC interface allowing automatic host software reconfiguration across Flash families
Automatic Sleep Mode	Enters 0.2 µA sleep after address stability-eliminates need for explicit power-down commands

Applications

Automotive Engine Control Unit (ECU)

Industrial PLC Firmware Storage

Use Scenario: Storing calibrated engine maps and diagnostic routines in under-hood ECU modules exposed to thermal cycling.

IC Role / Device Role / Timing Role: Boot-sector Flash providing secure, AEC-Q100 Grade 1-compliant nonvolatile storage for startup firmware and runtime parameter tables.

Use Value: 125°C operation and 1M-cycle endurance ensure reliable reprogramming during vehicle lifetime; WP# and sector protection prevent accidental corruption during CAN-based OTA updates.

Use Scenario: Holding ladder logic firmware and I/O configuration data in modular programmable logic controllers deployed in factory automation.

IC Role / Device Role / Timing Role: In-system programmable Flash memory serving as persistent code repository with hardware reset recovery for deterministic boot.

Use Value: RY/BY# and RESET# pins enable precise timing coordination with PLC CPU watchdog; erase suspend allows HMI-triggered firmware swaps without halting I/O scanning.

Medical Infusion Pump Boot Memory

Avionics Data Logger Nonvolatile Buffer

Use Scenario: Storing certified safety-critical boot code and calibration constants in battery-powered infusion pumps requiring regulatory traceability.

IC Role / Device Role / Timing Role: Secure, low-power Flash with Secured Silicon Sector used for immutable device identity and version-controlled firmware signature verification.

Use Value: 0.2 µA standby current extends battery life between charges; factory-locked serial number satisfies FDA UDI requirements for device-level identification.

Use Scenario: Capturing flight sensor telemetry in ARINC-429 avionics recorders where power loss may occur mid-write.

IC Role / Device Role / Timing Role: High-reliability Flash with hardware data protection (VCC detector, WP#) ensuring atomic sector writes during brown-out conditions.

Use Value: Automatic VCC detection inhibits writes during voltage droop; sector group protection isolates logger buffer from boot firmware-preventing corruption during emergency power-down.

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
S29AL008J70TFNR20	70 ns access time vs. 55 ns; identical sector map, voltage range, and feature set	Lower performance grade suitable for cost-sensitive industrial controllers with relaxed timing budgets	Select when system clock speed permits longer access latency and BOM cost reduction is prioritized over worst-case timing margin
MX29LV008CTTI-70G	Macronix part with 70 ns access, same 8 Mbit density and 2.7–3.6 V supply but lacks CFI support and Secured Silicon Sector	Non-automotive applications where serial number binding and standardized host reconfiguration are not required	Choose for legacy designs migrating from older Macronix platforms where CFI and security features are unused

Compared with S29AL008J70TFNR20 and MX29LV008CTTI-70G, the S29AL008J55TFNR20 delivers the fastest access (55 ns), full CFI compliance for software portability, and factory-programmable security-making it optimal for new automotive and safety-critical designs demanding both performance and traceability.

Availability

S29AL008J55TFNR20 is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC code retention, and medical device boot memory requiring stable component supply across extended temperature and high-reliability lifecycles.

Supply support for S29AL008J55TFNR20 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 secure microcontrollers with strong vertical integration in flash memory manufacturing.

The S29AL008J belongs to Infineon's automotive-qualified parallel NOR Flash product line, engineered specifically for mission-critical firmware storage in environments demanding AEC-Q100 qualification, sector-level protection, and deterministic boot behavior.

FAQ

What package type does S29AL008J55TFNR20 use?

The S29AL008J55TFNR20 uses a 48-ball fine-pitch VFBGA package (8.15 mm × 6.15 mm × 1.00 mm, 0.8 mm ball pitch), as specified in Infineon Document 002-00778 Rev. *Q, page 46. This package supports high-density PCB layouts and meets automotive thermal and mechanical reliability standards.

Does S29AL008J55TFNR20 support both x8 and x16 data bus configurations?

Yes. The device supports byte-mode (x8) and word-mode (x16) operation via the BYTE# pin. In x8 mode, DQ7–DQ0 carry data and DQ15/A-1 functions as address bit A-1; in x16 mode, DQ15–DQ0 carry full 16-bit data, enabling flexible integration with 8-bit or 16-bit microcontrollers.

How is hardware write protection implemented on S29AL008J55TFNR20?

Hardware write protection is controlled by the WP# pin: when driven low, it locks the boot sector (16 KB) against program/erase operations. An internal pull-up ensures WP# defaults to VIH (unprotected) if left unconnected. Protection applies only to the boot sector-other sectors require software or sector-group protection commands.

Is S29AL008J55TFNR20 compatible with JEDEC-standard Flash command sets?

Yes. The device is fully compliant with the JEDEC Standard JESD21-C for single-power-supply Flash memories. It supports standard commands including autoselect, sector erase, chip erase, and unlock bypass, and implements the Common Flash Interface (CFI) for automatic host software configuration and device identification.

S29AL008J55TFNR20 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: AL-J

Package/Case:: 48-TFSOP (0.724", 18.40mm Width)

Packaging:: Tray

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 ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSOP

S29AL008J55TFNR20 FAQ

1.How can I place an order for S29AL008J55TFNR20 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29AL008J55TFNR20 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 S29AL008J55TFNR20 reliable?

The price and inventory of S29AL008J55TFNR20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL008J55TFNR20 is usually 5 days.

3.What payment methods are accepted for S29AL008J55TFNR20?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AL008J55TFNR20 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29AL008J55TFNR20?

S29AL008J55TFNR20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29AL008J55TFNR20 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 S29AL008J55TFNR20?

For technical support, including S29AL008J55TFNR20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AL008J55TFNR20 requirements.

6.How does Aetrix verify that S29AL008J55TFNR20 is sourced from the original manufacturer or authorized distributors?

All S29AL008J55TFNR20 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 S29AL008J55TFNR20 meets industry standards.

7.What is the process for return or replacement of S29AL008J55TFNR20?

All S29AL008J55TFNR20 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL008J55TFNR20, 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 S29AL008J55TFNR20 part is unused and in its original packaging.

Return procedure for S29AL008J55TFNR20:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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