Infineon Technologies S29AL016J55FFAR20
- Part No.:
- S29AL016J55FFAR20
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 64-LBGA
- Datasheet:
-
S29AL016J55FFAR20.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 64FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:3,443
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Product details
Overview
S29AL016J55FFAR20 from Infineon Technologies (formerly Cypress) is a 16-Mbit, 3.0 V-only boot sector Flash memory organized as 2 M × 8-bit or 1 M × 16-bit, featuring 55 ns access time, AEC-Q100 Grade 1 (–40°C to +125°C) qualification, and flexible sector architecture with one 16 KB, two 8 KB, one 32 KB, and thirty-one 64 KB sectors. It serves as nonvolatile firmware storage in automotive engine control units requiring secure, in-system reprogrammability.
For engineers reviewing the S29AL016J55FFAR20 datasheet, S29AL016J55FFAR20 pinout, S29AL016J55FFAR20 application, or S29AL016J55FFAR20 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 S29AL016J55FFAR20 implements JEDEC-standard single-power-supply Flash command set with embedded algorithms for program (hot electron injection) and erase (Fowler-Nordheim tunneling). Its internal state machine latches addresses/data during write cycles and manages timing, margin verification, and automatic pre-programming prior to sector erase.
Hardware features include dedicated RY/BY# for cycle completion detection, RESET# for immediate state reset to read mode, and WP# for boot-sector hardware write protection. Sector group protection supports in-system locking/unlocking, and Erase Suspend enables background reads/writes to non-erasing sectors during active erase operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2,097,152 × 8-bit or 1,048,576 × 16-bit) - defines firmware image capacity for microcontroller boot code and parameter storage. |
| Access Time (tACC) | 55 ns - enables zero-wait-state operation with high-speed MCUs up to ~18 MHz bus frequency. |
| Supply Voltage | 2.7 V to 3.6 V - supports battery-powered and automotive 3.3 V rail systems without external voltage translation. |
| Cycling Endurance | 1,000,000 cycles per sector - ensures long-term field reliability for over-the-air (OTA) firmware updates in telematics modules. |
| Data Retention | 20 years typical - guarantees integrity of calibration data and security keys across vehicle lifetime. |
| Operating Temperature | –40°C to +125°C (AEC-Q100 Grade 1) - validated for under-hood ECU deployment without derating. |
| Power Consumption | 0.2 µA standby/automatic sleep current - minimizes quiescent drain in always-on automotive modules. |
Pinout & Package
Package: 48-ball Fine-pitch BGA (VBK048), 0.8 mm pitch, 8.15 mm × 6.15 mm footprint. Pinout corresponds to TSOP-compatible signal mapping with ball-grid layout optimized for thermal and signal integrity in automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 2 Mbyte addressing; A-1 used only in x16 mode for DQ15/A-1 dual-function pin. |
| DQ0–DQ15 | Data I/O (x16) / DQ0–DQ7 (x8) | Bidirectional data bus; BYTE# pin selects x8/x16 mode; DQ7/DQ6 provide Data# Polling and Toggle status during programming. |
| CE#, OE#, WE# | Chip Enable, Output Enable, Write Enable | Independent controls eliminate bus contention; CE# gating reduces power during inactive periods. |
| RY/BY# | Ready/Busy Output | Active-low open-drain signal indicates device busy during erase/program; enables hardware-synchronized host polling. |
| RESET# | Hardware Reset Input | Asynchronous reset to read mode; ties directly to system reset line to ensure boot firmware availability after power-up. |
| WP# | Write Protect Input | Hardware lock for boot sector (16 KB): low = protected, prevents accidental overwrite of critical startup code. |
Key Features
| Feature | Design Value |
|---|---|
| CFI (Common Flash Interface) | Standardized register map allows host software to auto-detect device geometry, timing, and command set-eliminating hard-coded Flash drivers. |
| Erase Suspend/Resume | Pauses active sector erase to service urgent reads/writes in other sectors-enables real-time firmware patching without interrupting background update tasks. |
| Secured Silicon Sector | 128-word factory-programmable region with 8-word electronic serial number-supports unique device identification and secure boot key binding. |
| Unlock Bypass Mode | Reduces multi-byte programming overhead from 4 to 2 write cycles per byte-cuts total firmware update time by ~50% in sequential writes. |
| Flexible Boot Configuration | Top-boot or bottom-boot sector selection via hardware strap or command-enables compatibility with legacy bootloader memory maps. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Firmware Storage |
|---|---|
|
Use Scenario: Storing calibrated fuel injection maps and real-time diagnostic code in under-hood ECUs exposed to thermal cycling and vibration. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic 55 ns read access to MCU during cold start; WP#-protected boot sector ensures fail-safe recovery. Use Value: AEC-Q100 Grade 1 rating and 20-year data retention guarantee firmware integrity over 15+ year vehicle service life without refresh. |
Use Scenario: Holding firmware images and configuration parameters for programmable logic controllers operating in factory automation environments. IC Role / Device Role / Timing Role: In-system reprogrammable Flash enabling remote firmware upgrades via industrial Ethernet; sector erase architecture isolates updates from runtime logic. Use Value: 1M-cycle endurance per sector supports daily firmware revisions in agile manufacturing deployments without premature wear-out. |
| Telematics Control Unit (TCU) | Medical Diagnostic Imaging Boot Memory |
|
Use Scenario: Secure OTA update storage for cellular-connected vehicle infotainment and connectivity modules requiring cryptographic signature verification. IC Role / Device Role / Timing Role: CFI-compliant Flash allowing host processor to dynamically configure driver stack; Secured Silicon Sector stores device-specific root keys. Use Value: Hardware-based sector protection prevents malicious overwrite of boot code during network-initiated updates-meeting ISO/SAE 21434 cybersecurity requirements. |
Use Scenario: Storing certified boot firmware and calibration constants in FDA-cleared MRI and CT scanner control subsystems. IC Role / Device Role / Timing Role: High-reliability Flash with 0.2 µA sleep current minimizing standby power in Class II medical devices with battery backup. Use Value: Extended temperature range (–40°C to +125°C) and 20-year retention satisfy IEC 62304 software lifecycle requirements for safety-critical embedded code. |
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 |
|---|---|---|---|
| S29GL016S55FFIR20 | 16-Mbit, 3.0 V, 55 ns access; newer 90 nm process; supports 1.8 V I/O interface; no Secured Silicon Sector | Lacks factory-programmable serial number; requires external secure element for device identity | Select when lower I/O voltage compatibility and higher density scaling are prioritized over built-in secure ID. |
| MX29LV160ETTI-55G | 16-Mbit, 3.0 V, 55 ns; top-boot only; no CFI support; 100K erase cycles per sector | Requires custom driver development; limited endurance for frequent OTA use | Choose for cost-sensitive industrial designs where firmware update frequency is low and driver portability is not required. |
Compared with S29AL016J55FFAR20, the S29GL016S offers better future-proofing for mixed-voltage systems but sacrifices secure identity; the MX29LV160ETTI provides lower unit cost but lacks CFI and endurance for robust field updates.
Availability
S29AL016J55FFAR20 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, telematics gateways, and medical imaging subsystems requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for S29AL016J55FFAR20 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 automotive ICs with strong emphasis on functional safety and reliability.
The S29AL016J belongs to Infineon's legacy Cypress Flash memory product line, designed specifically for mission-critical embedded firmware storage in automotive, industrial, and medical systems demanding AEC-Q100 qualification and secure boot capabilities.
FAQ
What boot sector configuration does S29AL016J55FFAR20 support?
The S29AL016J55FFAR20 supports both top-boot and bottom-boot configurations via hardware strapping or command sequence. In top-boot mode, the 16 KB boot sector resides at the highest address (0xFFC000–0xFFFFFF); in bottom-boot mode, it occupies the lowest address (0x000000–0x003FFF). This flexibility enables compatibility with diverse bootloader architectures without PCB redesign.
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-assigned electronic serial number. It can be permanently locked at the factory or by the customer using a specific command sequence. Once locked, it cannot be erased or rewritten, providing tamper-resistant device identification essential for secure boot and license enforcement.
Is S29AL016J55FFAR20 compatible with standard EPROM programmers?
Yes-S29AL016J55FFAR20 is fully programmable in standard EPROM programmers that support JEDEC-compliant Flash command sets. It requires only a 3.0 V VCC supply; no 12 V VPP or 5 V auxiliary voltage is needed. Programming follows the same command sequences used for in-system writes, ensuring consistent firmware build workflows across development and production stages.
What is the role of the BYTE# pin in x8/x16 mode selection?
The BYTE# pin determines data bus width: when pulled low, the device operates in x8 mode with DQ0–DQ7 active; when high, it operates in x16 mode with DQ0–DQ15 active. In x16 mode, A-1 becomes multiplexed with DQ15. This pin enables hardware-level compatibility with both 8-bit and 16-bit microcontrollers without external glue logic or bus transceivers.
S29AL016J55FFAR20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- AL-J
- Package/Case:
- 64-LBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8, 1M 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-FBGA (9x9)
S29AL016J55FFAR20 FAQ
1.How can I place an order for S29AL016J55FFAR20 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29AL016J55FFAR20 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 S29AL016J55FFAR20 reliable?
The price and inventory of S29AL016J55FFAR20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL016J55FFAR20 is usually 5 days.
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6.How does Aetrix verify that S29AL016J55FFAR20 is sourced from the original manufacturer or authorized distributors?
All S29AL016J55FFAR20 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 S29AL016J55FFAR20 meets industry standards.
7.What is the process for return or replacement of S29AL016J55FFAR20?
All S29AL016J55FFAR20 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL016J55FFAR20, 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 S29AL016J55FFAR20 part is unused and in its original packaging.
Return procedure for S29AL016J55FFAR20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S29AL016J55FFAR20 Tags

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