My Inquiry
My Account
Infineon Technologies S29AS008J70BFI042
- Part No.:
- S29AS008J70BFI042
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-VFBGA
- Datasheet:
-
S29AS008J70BFI042.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,302
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S29AS008J70BFI042 from Infineon Technologies (formerly Cypress) is an 8 Mbit, 1.8 V-only boot sector Flash memory organized as 1M × 8-bit or 512K × 16-bit, featuring top/bottom boot architecture, 70 ns access time, and industrial temperature range (–40°C to +85°C). It supports in-system programming/erasure with single 1.8 V supply, includes Secured Silicon Sector with 256-byte factory-programmable serial ID, and targets embedded boot code storage in microcontroller-based systems.
For engineers reviewing the S29AS008J70BFI042 datasheet, S29AS008J70BFI042 pinout, S29AS008J70BFI042 application, or S29AS008J70BFI042 equivalent, key selection criteria include boot sector protection granularity (eight 8 KB + fifteen 64 KB sectors), hardware write protection via WP# and sector group lock, CFI compliance for host auto-configuration, and erase suspend/resume capability for real-time firmware updates.
Technical Context
This device implements a command-register-controlled state machine for embedded program/erase algorithms, using Fowler-Nordheim tunneling for erase and hot electron injection for programming. It delivers deterministic timing via internal voltage generators - eliminating need for external VPP - and supports both byte (x8) and word (x16) data bus modes via BYTE# pin.
Hardware features include dedicated RY/BY# for cycle completion signaling, RESET# for immediate operation abort and array read recovery, and WP# for independent protection of outermost boot sectors. Sector group protection operates independently of CFI or software commands, enabling robust in-field firmware integrity control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 × 8 or 524,288 × 16) |
| Supply Voltage | 1.65–1.95 V - enables direct integration into 1.8 V logic domains without level shifting |
| Access Time | 70 ns - supports zero-wait-state operation with high-speed microcontrollers |
| Programming Time | 6 µs typical - reduces firmware update latency during field upgrades |
| Erase Endurance | 1,000,000 cycles per sector - qualifies for long-life embedded control applications |
| Data Retention | 20 years typical - ensures reliable boot code persistence over product lifecycle |
| Operating Temp | –40°C to +85°C - certified for industrial-grade environmental resilience |
Pinout & Package
Package: 48-ball FBGA (VBK048, 8.15 mm × 6.15 mm) - optimized for space-constrained PCB layouts and thermal performance in dense embedded modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address inputs | 19-bit address bus supporting full 8 Mbit addressing in x8/x16 mode |
| DQ0–DQ14 | Data I/O (x16) | 16-bit bidirectional data path; DQ15/A-1 serves dual role as MSB data or LSB address |
| BYTE# | Bus width select | Active-low input configuring interface as 8-bit (BYTE# = LOW) or 16-bit (BYTE# = HIGH) |
| CE#, OE#, WE# | Chip/output/write enable | Independent controls eliminate bus contention; support standard microprocessor timing |
| WP# | Hardware write protect | Locks two outermost boot sectors regardless of software sector protection status |
| RY/BY# | Ready/Busy output | Open-drain signal indicating active program/erase cycle - enables hardware flow control |
| RESET# | Hardware reset | Aborts ongoing operation and forces return to read mode - synchronizes with system power-on reset |
Key Features
| Feature | Design Value |
|---|---|
| Secured Silicon Sector | 256-byte factory- or customer-programmable region with permanent 16-byte electronic serial number for secure device identification |
| Flexible Boot Architecture | Selectable top or bottom boot block configuration - supports diverse bootloader placement strategies across MCU platforms |
| Erase Suspend/Resume | Enables real-time interruption of erase to service read/program requests in non-erasing sectors - critical for deterministic firmware update stacks |
| Unlock Bypass Mode | Reduces multi-word programming sequence from four to two write cycles - cuts total flash programming time by ~50% in burst-write scenarios |
| CFI Compliance | Provides standardized JEDEC register map for automatic host detection of geometry, timing, and command set - eliminates hardcoded driver dependencies |
Applications
| Industrial PLC Firmware Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing boot loader and safety-critical firmware in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic startup sequence and field-upgradable application code. Use Value: Sector group protection prevents accidental overwrite of bootloader during runtime firmware updates; 20-year data retention ensures reliability across 15+ year equipment lifecycles. | Use Scenario: Holding calibrated sensor parameters and low-level CAN communication stack in automotive BCMs operating under wide temperature swings. IC Role / Device Role / Timing Role: Persistent configuration store accessed during cold start and re-initialized after power loss. Use Value: WP# pin hard-locks boot sectors against voltage glitch-induced corruption; –40°C to +85°C rating matches under-hood thermal requirements. |
| Medical Diagnostic Equipment UI | Smart Energy Meter Firmware |
Use Scenario: Hosting GUI assets, calibration tables, and regulatory-compliant firmware in portable ultrasound and imaging devices requiring traceable software versions. IC Role / Device Role / Timing Role: Secure, versioned firmware repository with cryptographic signature verification support via Secured Silicon Sector. Use Value: 128-word secured region stores immutable device identity and firmware hash - enables audit-ready software lineage tracking per IEC 62304. | Use Scenario: Storing tariff tables, communication protocol stacks, and tamper-detection logs in ANSI C12.22-compliant smart meters deployed in utility grids. IC Role / Device Role / Timing Role: Field-updatable nonvolatile memory supporting remote firmware patches and regulatory compliance updates. Use Value: Erase suspend allows concurrent metering operations during background firmware validation - maintains Class 0.5 accuracy during OTA updates. |
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 |
|---|---|---|---|
| S29GL032N90TFI020 | 32 Mbit density, 90 ns access, 3.0 V supply - larger capacity but incompatible voltage domain | Requires level-shifting circuitry in 1.8 V systems; unsuitable for battery-powered designs | Select only when higher density and 3.0 V infrastructure are confirmed in target design |
| MX29LV008CTTI-70G | 8 Mbit, 70 ns, 3.0 V supply - identical density/timing but different voltage and sector layout (one 16 KB boot + thirty-one 64 KB) | Lacks Secured Silicon Sector and CFI compliance - limits secure identification and host auto-configuration | Acceptable for cost-sensitive legacy 3.0 V systems where security and flexibility are secondary |
Compared with S29AS008J70BFI042, the S29GL032N90TFI020 offers greater capacity at slower speed and higher voltage, while the MX29LV008CTTI-70G provides pin-compatible 3.0 V operation but omits secure ID and CFI - making the S29AS008J70BFI042 uniquely suited for secure, low-voltage, auto-configurable embedded boot applications.
Availability
S29AS008J70BFI042 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control modules, and medical diagnostic equipment UI requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for S29AS008J70BFI042 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 secure memory solutions with ISO/TS 16949-certified manufacturing.
The S29AS008J belongs to Infineon's legacy Cypress Flash memory product line, engineered specifically for reliable, low-voltage boot code storage in resource-constrained embedded systems where security, endurance, and deterministic timing are critical.
FAQ
Is S29AS008J70BFI042 compatible with 1.8 V microcontrollers without level shifters?
Yes. The device operates exclusively within 1.65–1.95 V, matching standard 1.8 V logic I/O thresholds. All control pins (CE#, OE#, WE#, RESET#, WP#, RY/BY#) and data pins (DQ0–DQ15) are fully compliant with 1.8 V CMOS signaling, eliminating need for external level translation in properly designed 1.8 V systems.
How does the Secured Silicon Sector differ from standard Flash sectors?
The Secured Silicon Sector is a dedicated 256-byte region with factory-programmed 16-byte electronic serial number and one-time programmable lock bits. Unlike regular sectors, it cannot be erased or rewritten once locked, and its contents are accessible only via specific command sequences - providing hardware-enforced device identity and anti-cloning protection.
Can WP# protect sectors other than the boot sectors?
No. WP# exclusively protects the two outermost boot sectors (top or bottom, depending on configuration), independent of software-based sector group protection. This hardware-level lock remains active even if sector group protection is disabled or corrupted, delivering fail-safe boot code integrity.
What is the functional impact of the Unlock Bypass mode on system firmware updates?
Unlock Bypass reduces the number of required write cycles per word from four to two during sequential programming, cutting total programming time by approximately 50%. This accelerates field firmware updates and reduces host CPU overhead during flash writes - especially beneficial in time-critical OTA deployment scenarios.
S29AS008J70BFI042 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- AS-J
- Package/Case:
- 48-VFBGA
- Packaging:
- Tape & Reel (TR)
- 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)
S29AS008J70BFI042 FAQ
1.How can I place an order for S29AS008J70BFI042 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29AS008J70BFI042 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 S29AS008J70BFI042 reliable?
The price and inventory of S29AS008J70BFI042 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AS008J70BFI042 is usually 5 days.
3.What payment methods are accepted for S29AS008J70BFI042?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29AS008J70BFI042 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S29AS008J70BFI042?
S29AS008J70BFI042 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29AS008J70BFI042 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 S29AS008J70BFI042?
For technical support, including S29AS008J70BFI042 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AS008J70BFI042 requirements.
6.How does Aetrix verify that S29AS008J70BFI042 is sourced from the original manufacturer or authorized distributors?
All S29AS008J70BFI042 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 S29AS008J70BFI042 meets industry standards.
7.What is the process for return or replacement of S29AS008J70BFI042?
All S29AS008J70BFI042 units undergo pre-shipment inspection (PSI). If there is an issue with S29AS008J70BFI042, 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 S29AS008J70BFI042 part is unused and in its original packaging.
Return procedure for S29AS008J70BFI042:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S29AS008J70BFI042 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
