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Cypress Semiconductor Corp S29AL008J70BAI020

Name: S29AL008J70BAI020
Brand: Cypress Semiconductor Corp
SKU: S29AL008J70BAI020
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29AL008J70BAI020

Manufacturer:: Cypress Semiconductor Corp

Category:: Memory

Package:: 48-VFBGA

Datasheet:: S29AL008J70BAI020.pdf

Description:: FLASH - NOR MEMORY IC 8MB (1M X

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Product details

Overview

S29AL008J70BAI020 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 V_CC, no V_PP required, and is used in automotive engine control units for secure boot firmware storage.

For engineers reviewing the S29AL008J70BAI020 datasheet, S29AL008J70BAI020 pinout, S29AL008J70BAI020 application, or S29AL008J70BAI020 equivalent, key selection criteria include boot-sector protection granularity, CFI compliance for host auto-configuration, erase suspend/resume capability for real-time firmware updates, and hardware write protection via WP# tied to top/bottom boot configuration.

Technical Context

The S29AL008J70BAI020 implements a command-register-driven state machine for embedded program/erase algorithms, with automatic pulse-width timing and margin verification. It uses Fowler-Nordheim tunneling for erase and hot-electron injection for program operations, fully compliant with JEDEC single-power-supply Flash standards.

Its dual-mode interface supports byte (DQ7–DQ0) and word (DQ15–DQ0) data widths via BYTE# control, while hardware features include RY/BY# for cycle completion signaling, RESET# for immediate state-machine reset, and WP# for hardware-level boot-sector lock. Sector group protection operates independently of software commands and persists across power cycles.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (1,048,576 × 8 or 524,288 × 16), enabling full boot code + parameter storage in single device
Access Time (t_ACC)	55 ns - eliminates wait states for 18 MHz+ microcontrollers in automotive ECU designs
Supply Voltage Range	2.7 V to 3.6 V - supports wide battery voltage swing in vehicle start-stop systems
Cycling Endurance	1,000,000 erase/program cycles per sector - sufficient for over-the-air (OTA) firmware update logging
Data Retention	20 years at +125°C - meets automotive long-life reliability requirements without refresh
Operating Temperature	–40°C to +125°C (AEC-Q100 Grade 1) - qualified for under-hood engine control applications
Power Consumption	0.2 µA standby/sleep current - enables low-quiescent-current always-on monitoring circuits

Pinout & Package

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

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)	16-bit bidirectional data path; DQ15/A-1 serves as LSB address in byte mode
BYTE#	Bus Width Select	Active-low input selecting 8-bit (high) or 16-bit (low) data interface; critical for legacy 8-bit MCU compatibility
CE#, OE#, WE#	Chip/Output/Write Enable	Independent controls eliminate bus contention; allows interleaved read/write in multi-device systems
WP#	Hardware Write Protect	Locks top or bottom 16 KB boot sector depending on configuration; immune to software glitches
RY/BY#	Ready/Busy Output	Open-drain active-low signal indicating active program/erase - enables hardware interrupt-driven status polling
RESET#	Hardware Reset	Asynchronous reset of internal state machine; ties directly to system reset rail for deterministic boot recovery

Key Features

Feature	Design Value
Erase Suspend/Resume	Allows interruption of sector erase to read/program other sectors - essential for real-time firmware patching without halting system operation
Secured Silicon Sector	128-word factory-programmable region with 8-word electronic serial number - provides immutable device identity for anti-cloning and traceability
Unlock Bypass Mode	Reduces program command overhead from 4 to 2 write cycles - cuts flash update time by ~35% in high-volume OTA deployments
CFI Compliance	Standardized register map enables automatic host detection of geometry, timing, and command set - eliminates hard-coded driver dependencies
Automatic Sleep Mode	Enters 0.2 µA sleep after address stability timeout - extends battery life in always-on telematics modules during ignition-off periods

Applications

Automotive Engine Control Unit (ECU)

Industrial PLC Firmware Storage

Use Scenario: Storing boot-up firmware and calibration maps in gasoline/diesel engine controllers exposed to under-hood temperatures up to +125°C.

IC Role / Device Role / Timing Role: Nonvolatile boot memory with hardware write protection for first 16 KB sector containing bootloader and safety-critical startup code.

Use Value: AEC-Q100 Grade 1 qualification and 20-year data retention ensure functional safety compliance (ISO 26262 ASIL-B) over vehicle lifetime.

Use Scenario: Holding field-upgradable ladder logic and I/O configuration in programmable logic controllers deployed in factory automation environments.

IC Role / Device Role / Timing Role: In-system reprogrammable code storage supporting remote firmware updates without hardware replacement.

Use Value: Erase suspend/resume enables background firmware validation while maintaining real-time I/O scanning - zero downtime during updates.

Medical Diagnostic Imaging Boot Loader

Avionics Data Recorder

Use Scenario: Securing boot firmware for MRI/CT scanner mainboards where regulatory audit trails require immutable device identification.

IC Role / Device Role / Timing Role: CFI-compliant Flash providing self-describing interface to host BIOS for automatic driver initialization and geometry detection.

Use Value: Secured Silicon Sector with factory-programmed 16-byte ESN satisfies FDA 21 CFR Part 11 electronic record integrity requirements.

Use Scenario: Logging flight-critical sensor data and system health metrics in black box recorders operating across –40°C to +85°C ambient range.

IC Role / Device Role / Timing Role: High-endurance Flash with 1M-cycle sector erase rating supporting cyclic overwrite of rolling telemetry buffers.

Use Value: 55 ns access time ensures deterministic response to ARINC 429 bus interrupts during rapid data capture bursts.

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
S29GL01GP12TFIV10	1 Gbit density, 110 nm process, 90 ns access, supports 1.8 V/3.0 V dual supply	Higher density for complex boot + application image storage; lacks Secured Silicon Sector	Select when >128 MB code space needed and ESN-based device authentication is not required
MX29GL008ETXGI-90G	8 Mbit, 90 ns, 2.7–3.6 V, no CFI support, no erase suspend, TSOP-only packaging	Limited to fixed-pinout TSOP; no background erase capability or hardware reset pin	Choose only for cost-sensitive, non-automotive designs where firmware update concurrency is unnecessary

Compared with S29AL008J70BAI020, the S29GL01GP12TFIV10 offers greater capacity but sacrifices secure identity and real-time erase flexibility, while the MX29GL008ETXGI-90G reduces feature set and temperature robustness to meet basic industrial price targets.

Availability

S29AL008J70BAI020 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, medical diagnostic imaging systems, and avionics data recorders requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for S29AL008J70BAI020 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 automotive and industrial focus.

The S29AL008J product line delivers automotive-grade, boot-sector Flash memory optimized for functional safety-critical firmware storage and secure device identity in harsh-environment applications.

FAQ

Is S29AL008J70BAI020 pin-compatible with earlier S29AL008D variants?

Yes - the S29AL008J70BAI020 maintains identical pinout and software command set with the S29AL008D, including TSOP and BGA package footprints. It is manufactured on 110 nm process but retains full backward compatibility for drop-in replacement in existing designs, verified through Infineon's continuity documentation.

What is the function of the BYTE# pin, and how does it affect data bus width?

The BYTE# pin selects between 8-bit (BYTE# = HIGH) and 16-bit (BYTE# = LOW) data interface modes. When HIGH, only DQ7–DQ0 are active; when LOW, DQ15–DQ0 operate as a 16-bit bus with DQ15/A-1 functioning as data bit 15. This enables seamless integration with both 8-bit and 16-bit microcontrollers without external multiplexing.

How does the Secured Silicon Sector provide device-level security?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region pre-programmed at factory with a unique 8-word (16-byte) electronic serial number. Once locked, it cannot be erased or rewritten. Access requires a specific command sequence, preventing cloning and enabling cryptographic binding of firmware to hardware identity in safety-certified systems.

Can WP# protect both top and bottom boot sectors simultaneously?

No - WP# protects only the top 16 KB sector (addresses 0xFFC000–0xFFFFFF) in top-boot configuration or the bottom 16 KB sector (0x000000–0x003FFF) in bottom-boot configuration, determined by hardware strap or factory setting. Dual-sector protection requires software-managed sector group locking via command sequences, not WP#.

S29AL008J70BAI020 Specifications

Product attributes: Attribute value

Manufacturer:: Cypress Semiconductor Corp

Series:: AL-J

Package/Case:: 48-VFBGA

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:: 70ns

Access Time:: 70 ns

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-FBGA (8.15x6.15)

S29AL008J70BAI020 FAQ

1.How can I place an order for S29AL008J70BAI020 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29AL008J70BAI020 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 S29AL008J70BAI020 reliable?

The price and inventory of S29AL008J70BAI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL008J70BAI020 is usually 5 days.

3.What payment methods are accepted for S29AL008J70BAI020?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AL008J70BAI020 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29AL008J70BAI020?

S29AL008J70BAI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29AL008J70BAI020 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 S29AL008J70BAI020?

For technical support, including S29AL008J70BAI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AL008J70BAI020 requirements.

6.How does Aetrix verify that S29AL008J70BAI020 is sourced from the original manufacturer or authorized distributors?

All S29AL008J70BAI020 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 S29AL008J70BAI020 meets industry standards.

7.What is the process for return or replacement of S29AL008J70BAI020?

All S29AL008J70BAI020 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL008J70BAI020, 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 S29AL008J70BAI020 part is unused and in its original packaging.

Return procedure for S29AL008J70BAI020:

1.Submit a request within 90 days.

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

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