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

Infineon Technologies S29AL008J55TFAR23

Name: S29AL008J55TFAR23
Brand: Infineon Technologies
SKU: S29AL008J55TFAR23
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29AL008J55TFAR23

Manufacturer:: Infineon Technologies

Category:: Memory

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

Datasheet:: S29AL008J55TFAR23.pdf

Description:: IC FLASH 8MBIT PARALLEL 48TSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

S29AL008J55TFAR23 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 V_CC, features Secured Silicon Sector with factory-programmable 128-word ESN, and is used in automotive engine control units for storing boot firmware and calibration data.

For engineers reviewing the S29AL008J55TFAR23 datasheet, S29AL008J55TFAR23 pinout, S29AL008J55TFAR23 application, or S29AL008J55TFAR23 equivalent, key selection criteria include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, and RY/BY# hardware status signaling for real-time erase/program monitoring.

Technical Context

The S29AL008J55TFAR23 implements a command-register-based state machine that executes embedded algorithms for program (hot electron injection) and erase (Fowler-Nordheim tunneling), eliminating need for external high-voltage supplies. It supports dual bus width modes (x8/x16) via BYTE# pin and includes dedicated WP# for boot-sector write protection and RESET# for hardware-initiated recovery to read mode.

Its CFI-compliant interface provides standardized JEDEC ID and geometry descriptors enabling runtime host reconfiguration. Erase suspend/resume allows background read/program operations in non-erasing sectors, while Data# Polling (DQ7) and Toggle Bits (DQ6/DQ2) deliver software-controlled operation completion detection alongside RY/BY# hardware signaling.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (1,048,576 × 8-bit or 524,288 × 16-bit) - defines firmware storage capacity for ECUs and industrial controllers
Access Time (t_ACC)	55 ns - enables zero-wait-state operation with high-speed microcontrollers up to ~18 MHz
Supply Voltage Range	2.7 V to 3.6 V - supports battery-powered and automotive 3.3 V rail systems without level shifting
Cycling Endurance	1,000,000 cycles per sector - ensures long-term reliability in field-updatable firmware applications
Data Retention	20 years typical - guarantees calibration and configuration data integrity over full product lifecycle
Operating Temperature	–40 °C to +125 °C (AEC-Q100 Grade 1) - qualified for under-hood automotive environments
Power Consumption (Read)	7 mA typical at 5 MHz - minimizes active power draw during firmware execution
Package	48-ball Fine-pitch BGA (VBK048, 8.15 mm × 6.15 mm × 1.00 mm) - enables compact PCB layout in space-constrained modules

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048), 0.8 mm pitch, 8.15 mm × 6.15 mm footprint, 1.00 mm height.

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address Inputs	19-bit address bus supporting full 1 Mbyte addressing in byte mode or 512 Kword in word mode
DQ0–DQ14	Data I/O (x16 mode)	Lower 15 bits of 16-bit data bus; DQ15/A-1 serves as MSB in x16 or LSB address in x8 mode
DQ15/A-1	Data I/O or Address Input	Configurable: DQ15 in word mode; A-1 (LSB) in byte mode - enables seamless x8/x16 bus adaptation
CE#, OE#, WE#	Chip/Output/Write Enable	Independent controls eliminate bus contention and support multiplexed memory-mapped I/O
RY/BY#	Ready/Busy Output	Active-low open-drain signal indicating internal program/erase completion - enables interrupt-driven host control
RESET#	Hardware Reset Input	Asynchronous reset to read mode; ties directly to system reset for safe boot sequence initialization
WP#	Write Protect Input	Hardware lock for boot sector (16 KB); active-low with internal pull-up - prevents accidental firmware overwrite
BYTE#	Bus Width Select	High = x16 mode (DQ15–DQ0), Low = x8 mode (DQ7–DQ0) - configures interface without external logic

Key Features

Feature	Design Value
Secured Silicon Sector	128-word (256-byte) factory- or customer-lockable region with 8-word random ESN - enables secure device identification and anti-cloning
Flexible Sector Architecture	One 16 KB, two 8 KB, one 32 KB, fifteen 64 KB sectors - permits granular firmware updates without erasing entire image
Erase Suspend/Resume	Pause ongoing sector erase to read/program other sectors - enables true background operations in real-time systems
Unlock Bypass Program Mode	Reduces multi-byte programming from 4 to 2 write cycles - cuts flash update time by ~50% in sequential writes
CFI Compliance	JEDEC-standardized query table accessible via command sequence - allows host OS or bootloader to auto-detect geometry and timing

Applications

Automotive Engine Control Unit (ECU)

Industrial PLC Firmware Storage

Use Scenario: Stores boot code, real-time control algorithms, and calibration maps in diesel/gasoline engine management systems.

IC Role / Device Role / Timing Role: Boot sector Flash providing nonvolatile storage with hardware write protection for critical startup firmware.

Use Value: AEC-Q100 Grade 1 qualification ensures reliable operation at 125 °C ambient; sector protection prevents corruption during over-the-air updates.

Use Scenario: Holds ladder logic programs and I/O configuration data in programmable logic controllers deployed in factory automation.

IC Role / Device Role / Timing Role: Field-updatable firmware memory with erase suspend capability to maintain deterministic scan cycle timing during partial reprogramming.

Use Value: 1M-cycle endurance supports decades of maintenance cycles; CFI interface simplifies firmware loader compatibility across PLC generations.

Medical Diagnostic Imaging Controller

Avionics Display System Boot Memory

Use Scenario: Stores FPGA configuration bitstreams and image processing firmware in portable ultrasound and MRI subsystems.

IC Role / Device Role / Timing Role: High-reliability boot memory with automatic sleep mode to meet stringent power budget requirements in battery-operated devices.

Use Value: 0.2 µA standby current extends battery life; 55 ns access enables direct execution from flash on ARM Cortex-M7 cores.

Use Scenario: Provides certified boot firmware for cockpit display units requiring DO-254 compliance and deterministic startup behavior.

IC Role / Device Role / Timing Role: Safety-critical boot Flash with hardware RESET# and RY/BY# signaling for fault-tolerant initialization sequences.

Use Value: Dual-boot sector configuration (top/bottom) supports fail-safe firmware rollback; 20-year data retention meets aviation service life requirements.

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
S29AL008J70TFAR23	70 ns access time vs. 55 ns; identical sector architecture, voltage range, and package	Lower performance grade suitable for cost-sensitive industrial controllers where <18 MHz bus speed is acceptable	Select when system timing margin allows relaxed t_ACC; same footprint and command set enable drop-in replacement
MX29LV008CTTI-70G	70 ns access; 3.3 V only (no 2.7 V min); lacks Secured Silicon Sector and CFI support	Legacy industrial designs without secure ID or auto-configuration needs; no AEC-Q100 qualification	Choose only for non-automotive, non-security applications where CFI and ESN are unnecessary

Compared with S29AL008J70TFAR23 and MX29LV008CTTI-70G, the S29AL008J55TFAR23 delivers superior timing performance, automotive qualification, and security features - making it optimal for safety-critical, field-upgradable, and high-integrity firmware storage where boot reliability and data authenticity are mandatory.

Availability

S29AL008J55TFAR23 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, medical imaging controllers, and avionics display systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant Flash memory.

Supply support for S29AL008J55TFAR23 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 MCUs, and memory solutions with strong emphasis on quality, reliability, and automotive-grade certification.

The S29AL008J belongs to Infineon's legacy Cypress Flash memory product line, designed specifically for robust, in-system programmable nonvolatile storage in automotive, industrial, and medical applications demanding high endurance, data retention, and hardware-level security.

FAQ

What boot sector configuration does S29AL008J55TFAR23 support?

The S29AL008J55TFAR23 supports both top-boot and bottom-boot configurations, selectable at manufacturing. In top-boot mode, the highest 16 KB sector (addresses 0xFF0000–0xFFFFFF) is protected by WP#; in bottom-boot mode, the lowest 16 KB sector (0x000000–0x003FFF) is protected. This flexibility enables compatibility with diverse bootloader architectures and memory mapping schemes.

How does the Secured Silicon Sector function in practice?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region containing an 8-word (16-byte) factory-programmed random Electronic Serial Number. It can be permanently locked via command sequence to prevent overwrite. Once locked, the ESN remains readable but unalterable - enabling secure device authentication, license binding, and counterfeit prevention in production firmware deployment.

Can S29AL008J55TFAR23 operate without external high-voltage supplies?

Yes. The S29AL008J55TFAR23 requires only a single 3.0 V supply (2.7–3.6 V range) for all operations. Internal charge pumps generate regulated voltages for programming and erasing, eliminating need for 5 V or 12 V V_PP rails. This simplifies power design and enables direct connection to standard 3.3 V microcontroller buses without level shifters or auxiliary supplies.

What is the role of the BYTE# pin in system integration?

The BYTE# pin selects between 8-bit (x8) and 16-bit (x16) data bus operation: HIGH configures DQ15–DQ0 as a 16-bit bus; LOW restricts valid data to DQ7–DQ0 with DQ15/A-1 repurposed as address LSB A-1. This eliminates external bus-width translation logic and allows one hardware design to support both microcontroller bus widths via simple strap configuration.

S29AL008J55TFAR23 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:: Obsolete

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

S29AL008J55TFAR23 FAQ

1.How can I place an order for S29AL008J55TFAR23 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29AL008J55TFAR23 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 S29AL008J55TFAR23 reliable?

The price and inventory of S29AL008J55TFAR23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL008J55TFAR23 is usually 5 days.

3.What payment methods are accepted for S29AL008J55TFAR23?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AL008J55TFAR23 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29AL008J55TFAR23?

S29AL008J55TFAR23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29AL008J55TFAR23 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 S29AL008J55TFAR23?

For technical support, including S29AL008J55TFAR23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AL008J55TFAR23 requirements.

6.How does Aetrix verify that S29AL008J55TFAR23 is sourced from the original manufacturer or authorized distributors?

All S29AL008J55TFAR23 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 S29AL008J55TFAR23 meets industry standards.

7.What is the process for return or replacement of S29AL008J55TFAR23?

All S29AL008J55TFAR23 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL008J55TFAR23, 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 S29AL008J55TFAR23 part is unused and in its original packaging.

Return procedure for S29AL008J55TFAR23:

1.Submit a request within 90 days.

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

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