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

Cypress Semiconductor Corp S29AL008J55BFIR20

Name: S29AL008J55BFIR20
Brand: Cypress Semiconductor Corp
SKU: S29AL008J55BFIR20
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29AL008J55BFIR20

Manufacturer:: Cypress Semiconductor Corp

Category:: Memory

Package:: 48-VFBGA

Datasheet:: S29AL008J55BFIR20.pdf

Description:: IC FLASH 8MBIT PARALLEL 48FBGA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

S29AL008J55BFIR20 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 qualification (–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 without VPP, and integrates hardware write protection via WP# and sector group locking.

For engineers reviewing the S29AL008J55BFIR20 datasheet, S29AL008J55BFIR20 pinout, S29AL008J55BFIR20 application, or S29AL008J55BFIR20 equivalent, key selection considerations include boot-block configuration (top/bottom), CFI compliance for host auto-configuration, Erase Suspend/Resume capability for real-time firmware updates, and Secured Silicon Sector with factory-programmable 128-word electronic serial number.

Technical Context

This device implements a JEDEC-standard single-power-supply Flash command set with embedded algorithms for automatic program pulse timing, margin verification, and erase pre-programming. Its internal state machine interprets command sequences written to the command register using standard microprocessor timings, eliminating external timing control.

The architecture includes dedicated hardware features: RY/BY# pin for cycle completion detection, RESET# for immediate operation termination and array read recovery, and BYTE# input to select x8/x16 data bus width. Sector group protection operates independently of software control and remains active during power transitions via integrated low-VCC detection.

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 microcontrollers
Supply Voltage Range	2.7 V to 3.6 V - supports battery-powered and automotive systems with wide voltage tolerance
Cycling Endurance	1,000,000 cycles per sector - ensures long-term field reliability for firmware update partitions
Data Retention	20 years typical - guarantees nonvolatile storage integrity over full product lifecycle
Operating Temperature	–40°C to +125°C (AEC-Q100 Grade 1) - qualified for under-hood automotive applications
Power Consumption (Read)	7 mA typical at 5 MHz - minimizes active-mode current draw in embedded hosts
Package Type	48-ball Fine-pitch BGA (VBK048, 0.8 mm pitch, 8.15 mm × 6.15 mm)

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048), 0.8 mm ball 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/512 Kword addressing
DQ0–DQ14	Data I/O (x16 mode)	15-bit bidirectional data path; DQ15/A-1 serves as LSB address in byte mode
DQ15/A-1	Data I/O or Address LSB	Provides x16 data width or byte-mode A-1 address; eliminates need for external address multiplexing
CE#, OE#, WE#	Chip/Output/Write Enable	Independent controls prevent bus contention; enable standard SRAM-like interface timing
WP#	Hardware Write Protect	Active-low input that locks top or bottom 16 KB boot sector based on configuration
RY/BY#	Ready/Busy Output	Open-drain status signal indicating active program/erase cycle completion
RESET#	Hardware Reset	Asynchronous reset to reading state; synchronizes boot firmware fetch after system power-up
BYTE#	Bus Width Select	Configures x8 (BYTE# = VIH) or x16 (BYTE# = VIL) data interface without redesign

Key Features

Feature	Design Value
Unlock Bypass Program Mode	Reduces multi-byte programming time by halving required write cycles (2 vs. 4) without sacrificing verification integrity
Erase Suspend/Resume	Enables real-time interruption of sector erase to service urgent read/write requests in unprotected sectors
Secured Silicon Sector	Factory- or customer-programmable 128-word region with locked 8-word electronic serial number for secure device identification
CFI Compliance	Provides standardized JEDEC-defined parameter tables enabling automatic host software reconfiguration across Flash families
Automatic Sleep Mode	Enters ultra-low 0.2 µA sleep current after address stability timeout - critical for battery-backed systems

Applications

Automotive Engine Control Unit (ECU)

Industrial PLC Firmware Storage

Use Scenario: Storing calibrated engine maps and diagnostic code in under-hood ECU modules subject to thermal cycling and vibration.

IC Role / Device Role / Timing Role: Boot-sector Flash providing primary firmware execution image with hardware-protected startup code.

Use Value: AEC-Q100 Grade 1 qualification ensures reliable operation at +125°C; WP#-enabled boot sector prevents accidental overwrite during field updates.

Use Scenario: Holding firmware and configuration data for programmable logic controllers deployed in factory automation environments.

IC Role / Device Role / Timing Role: Nonvolatile storage for runtime-modifiable control logic with sector-level erase granularity.

Use Value: Flexible sector architecture allows independent reprogramming of application logic without disturbing communication stack or safety-critical routines.

Medical Diagnostic Imaging Boot Memory

Avionics Data Logger Configuration

Use Scenario: Hosting boot firmware and calibration parameters for portable ultrasound or MRI subsystems requiring traceable revision history.

IC Role / Device Role / Timing Role: Secure, high-reliability Flash with Secured Silicon Sector for device serialization and regulatory compliance tracking.

Use Value: Factory-programmed electronic serial number enables unique device identification and audit-ready firmware lineage management.

Use Scenario: Storing flight-critical configuration profiles and sensor calibration tables in airborne data acquisition units.

IC Role / Device Role / Timing Role: Radiation-tolerant (process-qualified), low-power Flash supporting extended mission durations with minimal standby drain.

Use Value: 0.2 µA standby current extends battery life in maintenance-free deployments; CFI support simplifies host driver portability across avionics platforms.

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 microcontroller wait states are permissible or clock frequency is ≤20 MHz	Select when cost sensitivity outweighs performance requirement and thermal profile remains within Grade 3 (–40°C to +85°C)
MX29LV008CTTI-55G	55 ns access; 3.3 V core; different command set; no CFI support; TSOP-only packaging	Lacks Secured Silicon Sector and Erase Suspend; requires host software adaptation	Choose only if legacy board layout uses TSOP and CFI/secure ID features are not required

Compared with S29AL008J70TFIR20 and MX29LV008CTTI-55G, the S29AL008J55BFIR20 uniquely combines automotive-grade temperature range, CFI auto-configuration, and hardware-secured serial identity - making it optimal for new designs requiring field-upgradable, auditable firmware in harsh environments.

Availability

S29AL008J55BFIR20 is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC configuration retention, and medical imaging boot memory requiring stable component supply across extended product lifecycles.

Supply support for S29AL008J55BFIR20 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, industrial, and security solutions with vertical integration from silicon manufacturing to system-level expertise.

The S29AL008J belongs to Infineon's automotive-qualified parallel NOR Flash portfolio, designed specifically for mission-critical firmware storage in engine control, ADAS, and body electronics where data integrity, long-term retention, and hardware-based security are mandatory.

FAQ

Is S29AL008J55BFIR20 pin-compatible with earlier S29AL008D devices?

Yes - the S29AL008J55BFIR20 maintains identical pinout and software 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 TSOP and BGA layouts without PCB revision.

Does the Secured Silicon Sector support customer programming in-system?

Yes - the Secured Silicon Sector can be programmed and locked either at the factory or by the customer using standard command sequences. The datasheet explicitly states "Customer Lockable: Secured Silicon Sector NOT Programmed or Protected at the Factory" and provides full unlock/program/lock command definitions.

What is the function of the BYTE# pin in practical design?

The BYTE# pin selects between x8 and x16 data bus width: VIH configures byte mode (DQ7–DQ0 active), VIL enables word mode (DQ15–DQ0 active). This allows a single PCB layout to support both 8-bit and 16-bit microcontrollers via simple pull-up/pull-down resistor change - no trace modification needed.

How does Erase Suspend improve firmware update reliability?

Erase Suspend allows an ongoing sector erase to be paused so the host can read or program another sector - essential for dual-bank firmware updates where one bank executes while the other is updated. The datasheet confirms this enables "true background erase" without halting real-time system operation.

S29AL008J55BFIR20 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:: 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-FBGA (8.15x6.15)

S29AL008J55BFIR20 FAQ

1.How can I place an order for S29AL008J55BFIR20 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29AL008J55BFIR20 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 S29AL008J55BFIR20 reliable?

The price and inventory of S29AL008J55BFIR20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL008J55BFIR20 is usually 5 days.

3.What payment methods are accepted for S29AL008J55BFIR20?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AL008J55BFIR20 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29AL008J55BFIR20?

S29AL008J55BFIR20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29AL008J55BFIR20 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 S29AL008J55BFIR20?

For technical support, including S29AL008J55BFIR20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AL008J55BFIR20 requirements.

6.How does Aetrix verify that S29AL008J55BFIR20 is sourced from the original manufacturer or authorized distributors?

All S29AL008J55BFIR20 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 S29AL008J55BFIR20 meets industry standards.

7.What is the process for return or replacement of S29AL008J55BFIR20?

All S29AL008J55BFIR20 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL008J55BFIR20, 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 S29AL008J55BFIR20 part is unused and in its original packaging.

Return procedure for S29AL008J55BFIR20:

1.Submit a request within 90 days.

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

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