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

Infineon Technologies S29AS008J70BFI020

Name: S29AS008J70BFI020
Brand: Infineon Technologies
SKU: S29AS008J70BFI020
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29AS008J70BFI020

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 48-VFBGA

Datasheet:: S29AS008J70BFI020.pdf

Description:: IC FLASH 8MBIT PARALLEL 48FBGA

Quantity:: RFQ Add To RFQ list

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Inventory:1,594

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Product details

Overview

S29AS008J70BFI020 from Infineon Technologies (formerly Cypress) is an 8 Mbit, 1.8 V-only boot sector Flash memory organized as 1M × 8-bit / 512K × 16-bit with top/bottom configurable boot blocks, 70 ns access time, and industrial temperature range (–40°C to +85°C). It supports in-system programming via standard 1.8 V V_CC, features Secured Silicon Sector with 256-byte factory-programmable serial ID, and is used for firmware storage in embedded microcontroller boot loaders.

For engineers reviewing the S29AS008J70BFI020 datasheet, S29AS008J70BFI020 pinout, S29AS008J70BFI020 application, or S29AS008J70BFI020 equivalent, key selection criteria include boot sector architecture flexibility, JEDEC-compliant command set, hardware write protection (WP#), erase suspend/resume capability, and dual-package availability (48-pin TSOP/48-ball FBGA).

Technical Context

The device implements a sector-erase Flash architecture with eight 8 KB + fifteen 64 KB sectors (byte mode) or eight 4 Kword + fifteen 32 Kword sectors (word mode), enabling selective firmware updates without full chip erasure. It uses Fowler-Nordheim tunneling for erase and hot electron injection for program operations, with internally generated high-voltage programming/erase pulses.

Command execution is managed by an internal state machine that latches addresses and data during write cycles; status detection is supported via RY/BY# pin, DQ7 Data# Polling, and DQ6/DQ2 toggle bits. CFI compliance provides standardized device identification for host software auto-configuration.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (1,048,576 × 8-bit or 524,288 × 16-bit)
Supply Voltage	1.65–1.95 V - enables direct integration into 1.8 V system rails without level shifting
Access Time	70 ns - supports zero-wait-state operation with high-speed microprocessors
Operating Temperature	–40°C to +85°C - qualified for industrial-grade embedded control applications
Erase Endurance	1,000,000 cycles per sector - ensures long-term field reliability for frequent firmware updates
Data Retention	20 years typical - guarantees nonvolatile storage integrity over product lifecycle
Power Consumption	8 µA standby / 15 µA automatic sleep - minimizes quiescent current in battery-powered systems

Pinout & Package

Available in 48-pin TSOP (Type I) and 48-ball FBGA (VBK048, 8.15 mm × 6.15 mm) packages. Both packages support identical pin functions and timing.

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address Inputs	19-bit address bus supporting full 8 Mbit addressing; A-1 multiplexed on DQ15 in byte mode
DQ0–DQ15 (A-1)	Data I/O / LSB Address	16-bit bidirectional data bus in word mode; DQ15 serves as A-1 (LSB) in byte mode
CE#, OE#, WE#	Chip/Output/Write Enable	Independent control lines eliminate bus contention; enable standard microprocessor timing
RY/BY#	Ready/Busy Output	Active-low open-drain signal indicating active program/erase cycle completion
RESET#	Hardware Reset Input	Asynchronous reset of internal state machine to read mode; ties directly to system reset
WP#	Write Protect Input	Hardware lock for two outermost boot sectors regardless of software sector protection status
BYTE#	Bus Width Select	Configures x8 (BYTE# = LOW) or x16 (BYTE# = HIGH) data interface

Key Features

Feature	Design Value
Top/Bottom Boot Sector Architecture	Enables flexible firmware partitioning-boot code stored in protected sectors while application code resides in reprogrammable main sectors
Secured Silicon Sector (256-byte)	Factory- or customer-programmable electronic serial number (16-byte random ID) for secure device authentication and traceability
Erase Suspend/Resume	Allows interruption of background erase to service real-time read/program requests in non-erasing sectors
Unlock Bypass Program Mode	Reduces multi-byte programming overhead from four to two write cycles per data word, accelerating firmware patching
Hardware Sector Group Protection	Locks any combination of sectors in-system or via programmer to prevent accidental overwrite during field updates

Applications

Industrial PLC Firmware Storage

Automotive Body Control Module (BCM)

Use Scenario: Storing boot loader and safety-critical firmware in programmable logic controllers requiring field-upgradable code with tamper resistance.

IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic startup sequence and secure firmware validation at power-on reset.

Use Value: Secured Silicon Sector enables unique device identity binding to signed firmware images; hardware WP# prevents corruption during brown-out conditions.

Use Scenario: Holding configuration data and low-level driver code in automotive BCMs operating across extended temperature ranges.

IC Role / Device Role / Timing Role: Primary flash storage for CAN-based communication stack initialization and EEPROM-emulation routines.

Use Value: 1M-cycle endurance and 20-year data retention meet ISO 16750-4 automotive environmental requirements; 70 ns access enables fast boot within 100 ms.

Medical Diagnostic Equipment Boot Memory

Smart Energy Meter Firmware

Use Scenario: Hosting certified diagnostic application firmware and calibration tables in Class II medical devices subject to IEC 62304 compliance.

IC Role / Device Role / Timing Role: Secure, verifiable boot medium ensuring only authorized firmware executes during device power-up.

Use Value: CFI compliance allows automated firmware validation during manufacturing test; sector protection prevents unauthorized modification of regulatory-critical code segments.

Use Scenario: Storing metrology firmware and tariff tables in ANSI C12.22-compliant smart meters deployed in utility grids.

IC Role / Device Role / Timing Role: Field-upgradable nonvolatile memory supporting remote firmware updates over PLC or RF links.

Use Value: Erase suspend/resume enables concurrent metering operation during firmware download; ultra-low 8 µA standby current extends battery life in backup power modes.

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
S29GL032N90TFI010	32 Mbit density, 90 ns access, 3.0 V supply - larger capacity but incompatible voltage domain	Requires external level-shifting for 1.8 V systems; suited for higher-firmware-footprint applications	Select only if system design accommodates 3.0 V V_CC and requires >8 Mbit capacity
MX29LV008CTTI-70G	8 Mbit, 70 ns, 3.0 V supply - same density/speed but different voltage and JEDEC command set	Lacks Secured Silicon Sector and CFI support; no hardware WP# for boot sectors	Use only when legacy 3.0 V infrastructure exists and security/authentication features are not required

Compared with S29AS008J70BFI020, the S29GL032N90TFI010 offers greater density but mandates 3.0 V operation and lacks 1.8 V compatibility, while the MX29LV008CTTI-70G omits critical security and protection features essential for modern embedded boot applications.

Availability

S29AS008J70BFI020 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control modules, and medical diagnostic equipment requiring stable component supply with guaranteed long-term availability.

Supply support for S29AS008J70BFI020 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, sensor, and memory solutions for industrial, automotive, and IoT applications.

The S29AS008J belongs to Infineon's legacy Cypress Flash memory portfolio, designed specifically for reliable, secure, and low-power firmware storage in resource-constrained embedded systems with stringent qualification requirements.

FAQ

What package types are offered for S29AS008J70BFI020?

The S29AS008J70BFI020 is manufactured in two RoHS-compliant packages: 48-pin TSOP (Type I, standard footprint) and 48-ball FBGA (VBK048, 8.15 mm × 6.15 mm). Both packages share identical pinout, timing, and functional specifications, enabling drop-in layout reuse between designs.

Does S29AS008J70BFI020 support both x8 and x16 data bus configurations?

Yes. The device supports configurable bus width via the BYTE# pin: asserting BYTE# LOW selects 8-bit mode (DQ7–DQ0 active), while asserting BYTE# HIGH enables 16-bit mode (DQ15–DQ0 active). In byte mode, DQ15 functions as A-1 (address LSB), maintaining full 8 Mbit addressability.

How is hardware write protection implemented on S29AS008J70BFI020?

Hardware write protection is enforced through the WP# pin, which internally pulls up to V_CC. When WP# is driven LOW, the two outermost boot sectors (regardless of software sector group protection status) are locked against program and erase operations. This provides fail-safe protection during power transitions or system faults.

Can S29AS008J70BFI020 be programmed in standard EPROM programmers?

Yes. The device supports parallel programming in standard EPROM programmers using 1.8 V V_CC only - no auxiliary 5 V or 12 V supplies are required. Programming follows JEDEC-standard command sequences, and all necessary voltages are internally generated, ensuring compatibility with legacy programming infrastructure.

S29AS008J70BFI020 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: AS-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:: 1.65V ~ 1.95V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

S29AS008J70BFI020 FAQ

1.How can I place an order for S29AS008J70BFI020 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29AS008J70BFI020 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 S29AS008J70BFI020 reliable?

The price and inventory of S29AS008J70BFI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AS008J70BFI020 is usually 5 days.

3.What payment methods are accepted for S29AS008J70BFI020?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AS008J70BFI020 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29AS008J70BFI020?

S29AS008J70BFI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29AS008J70BFI020 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 S29AS008J70BFI020?

For technical support, including S29AS008J70BFI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AS008J70BFI020 requirements.

6.How does Aetrix verify that S29AS008J70BFI020 is sourced from the original manufacturer or authorized distributors?

All S29AS008J70BFI020 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 S29AS008J70BFI020 meets industry standards.

7.What is the process for return or replacement of S29AS008J70BFI020?

All S29AS008J70BFI020 units undergo pre-shipment inspection (PSI). If there is an issue with S29AS008J70BFI020, 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 S29AS008J70BFI020 part is unused and in its original packaging.

Return procedure for S29AS008J70BFI020:

1.Submit a request within 90 days.

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

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