Infineon Technologies S29JL032J70TFI310
- Part No.:
- S29JL032J70TFI310
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29JL032J70TFI310.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S29JL032J70TFI310 from Infineon Technologies (formerly Cypress) is a 32-Mb simultaneous read/write flash memory organized as 4M × 8-bit or 2M × 16-bit, operating at 3.0 V only, with 70 ns access time, 4-bank architecture, and secured silicon region. It enables zero-latency background erase/program while reading from another bank in embedded boot code storage, firmware update buffers, and industrial controller nonvolatile data logging.
For engineers reviewing the S29JL032J70TFI310 datasheet, S29JL032J70TFI310 pinout, S29JL032J70TFI310 application, or S29JL032J70TFI310 equivalent, key selection criteria include simultaneous bank operation support, JEDEC CFI compliance, hardware write protection via WP#/ACC, RY/BY# status signaling, and boot sector configuration flexibility for secure firmware partitioning.
Technical Context
The S29JL032J70TFI310 implements a true 4-bank flash architecture where two banks operate concurrently-one executing erase/program, the other supporting full-speed read access. Each bank supports independent sector erase, and boot sectors (top or bottom) are configurable with hardware protection.
It integrates JEDEC-standard Common Flash Interface (CFI), erase suspend/resume, Data# polling (DQ7), and dual toggle bits (DQ6/DQ2) for software status monitoring. Internal charge pumps generate high-voltage programming/erasing voltages from a single 3.0 V supply, eliminating external voltage boosters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mb (4M × 8-bit / 2M × 16-bit); supports byte- or word-wide data bus interfacing |
| Access Time (tACC) | 70 ns max; determines minimum clock cycle for reliable read timing in microcontroller or FPGA interfaces |
| Operating Voltage | 3.0 V to 3.6 V; single-supply operation eliminates need for separate VPP or 5 V rails |
| Cycling Endurance | 100,000 program/erase cycles per sector; supports frequent firmware field updates |
| Data Retention | 20 years typical at 125 °C; ensures long-term reliability in automotive and industrial environments |
| Power Consumption | 200 nA standby current; enables ultra-low-power retention in battery-backed systems |
| Bank Architecture | 4 independent banks; allows concurrent read from one bank while erasing/programming another |
Pinout & Package
Package: 48-ball Fine-pitch BGA (VBK048 footprint). Pin assignments validated per Infineon Document 002-00857 Rev. *J, Figure 4.2 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | 21-bit address bus supporting full 4M-byte or 2M-word addressing space |
| DQ0–DQ15 | Data I/O (16-bit) | Bidirectional data bus; DQ7–DQ0 used in byte mode, DQ15–DQ0 in word mode |
| CE#, OE#, WE# | Chip/Output/Write Enable | Standard asynchronous control signals compatible with microprocessor bus timing |
| RY/BY# | Ready/Busy Output | Active-low hardware status signal indicating completion of program/erase operations |
| RESET# | Hardware Reset Input | Forces device into read mode and clears internal state machine during power-up or fault recovery |
| WP#/ACC | Write Protect / Acceleration | Hardware lock for outer boot sectors; ACC mode reduces program time to 6 µs/word |
| BYTE# | Bus Width Select | Configures interface between 8-bit (BYTE# = low) and 16-bit (BYTE# = high) operation |
| VCC, VSS | Power Supply | Single 3.0 V supply powers all functions including internal high-voltage generation |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Read/Write | Zero-latency concurrent access across banks enables real-time firmware execution during background updates |
| Secured Silicon Region | 256-byte factory-lockable sector with ESN storage and customer one-time programmability for secure boot keys |
| Erase Suspend/Resume | Pauses active erase to service urgent read/program requests in unprotected sectors without data loss |
| Hardware Sector Protection | Independent locking of any sector combination via WP# and command-set protection registers |
| Automatic Sleep Mode | Enters <200 nA quiescent current after address stability-critical for energy-constrained edge devices |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with runtime validation. IC Role / Device Role / Timing Role: Nonvolatile boot and application code storage with in-system reprogrammability and bank-interleaved execution. Use Value: Enables zero-downtime firmware patching via background erase in one bank while executing control code from another. | Use Scenario: Holding boot loader and safety-critical sensor calibration data in autonomous driving ECUs. IC Role / Device Role / Timing Role: Secure, high-reliability flash for ASIL-B compliant boot sequence with protected boot sectors. Use Value: Secured Silicon Region stores immutable cryptographic keys; hardware WP# prevents accidental overwrites during OTA updates. |
| Medical Imaging System Log Buffer | Smart Grid RTU Configuration Storage |
Use Scenario: Capturing diagnostic event logs and calibration history in MRI or ultrasound equipment. IC Role / Device Role / Timing Role: High-endurance data logger with sector-erasable partitions for timestamped records. Use Value: 100K erase cycles per sector supports daily log rotation over 10+ years of clinical use. | Use Scenario: Storing grid synchronization parameters and firmware revision metadata in remote terminal units. IC Role / Device Role / Timing Role: JEDEC CFI-compliant flash enabling standardized field upgrade via Modbus or DNP3 protocols. Use Value: CFI query capability allows host MCU to auto-detect geometry and timing parameters without hard-coded drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29JL032J60TFI310 | 60 ns access time vs. 70 ns; identical pinout, bank architecture, and feature set | Higher performance required in latency-sensitive boot paths (e.g., fast-boot industrial HMI) | Select when system timing budget demands sub-70 ns read cycles; otherwise, 70 ns variant offers cost/power trade-off |
| S29JL064J70TFI310 | 64 Mb density (double capacity); same 70 ns speed, 4-bank structure, and package | Needed for larger firmware images or dual-application partitioning (e.g., primary + fallback OS) | Choose when >32 Mb storage is required; shares identical interface and command set for drop-in scalability |
Compared with S29JL032J60TFI310, the 70 ns variant trades 10 ns latency for lower dynamic power and broader voltage margin; versus S29JL064J70TFI310, it provides proven 32 Mb footprint compatibility where capacity expansion is unnecessary.
Availability
S29JL032J70TFI310 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system log buffer applications requiring stable component supply and long-term lifecycle support.
Supply support for S29JL032J70TFI310 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.
The S29JL032J belongs to Infineon's Simultaneous Read/Write Flash product line, engineered for deterministic real-time firmware execution and secure in-field updates in safety-critical embedded systems.
FAQ
Does S29JL032J70TFI310 support both 8-bit and 16-bit data bus configurations?
Yes. The BYTE# pin selects bus width: logic low enables 8-bit mode (DQ7–DQ0 active), logic high enables 16-bit mode (DQ15–DQ0 active). Address mapping adjusts automatically-A0–A20 covers 4M bytes in byte mode or 2M words in word mode-ensuring seamless integration with diverse microcontrollers and FPGAs without external glue logic.
How does the Secured Silicon Region function in practice?
The Secured Silicon Region is a dedicated 256-byte sector with factory-programmed 16-byte electronic serial number and customer-lockable space. Once locked via command sequence, its contents become read-only and tamper-evident. The DQ6 bit indicates lock status, and autoselect commands verify factory lock integrity-enabling secure key storage and anti-cloning in medical and industrial devices.
Can erase suspend be used during a chip erase operation?
No. Erase suspend/resume applies only to sector erase operations-not chip erase. During chip erase, the entire array is erased in one atomic operation, and no suspend capability is provided. This design ensures predictable timing and avoids partial-erase states that could compromise data integrity in safety-critical applications.
What is the role of the WP#/ACC pin during normal operation?
WP# (Write Protect) permanently disables programming/erasing of the two outermost boot sectors regardless of software protection settings. ACC (Acceleration) mode, activated by applying 5.5 V to WP#/ACC during programming, reduces word-program time from 12 µs to 6 µs. Both functions share the same pin but operate under distinct voltage and timing conditions-ensuring backward compatibility and enhanced performance when needed.
S29JL032J70TFI310 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- JL-J
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8, 2M 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-TSOP
S29JL032J70TFI310 FAQ
1.How can I place an order for S29JL032J70TFI310 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29JL032J70TFI310 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 S29JL032J70TFI310 reliable?
The price and inventory of S29JL032J70TFI310 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29JL032J70TFI310 is usually 5 days.
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S29JL032J70TFI310 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29JL032J70TFI310 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 S29JL032J70TFI310?
For technical support, including S29JL032J70TFI310 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29JL032J70TFI310 requirements.
6.How does Aetrix verify that S29JL032J70TFI310 is sourced from the original manufacturer or authorized distributors?
All S29JL032J70TFI310 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 S29JL032J70TFI310 meets industry standards.
7.What is the process for return or replacement of S29JL032J70TFI310?
All S29JL032J70TFI310 units undergo pre-shipment inspection (PSI). If there is an issue with S29JL032J70TFI310, 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 S29JL032J70TFI310 part is unused and in its original packaging.
Return procedure for S29JL032J70TFI310:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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