Infineon Technologies S29JL032J70TFI023
- Part No.:
- S29JL032J70TFI023
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29JL032J70TFI023.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S29JL032J70TFI023 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, four-bank architecture, and boot sector configuration. It enables zero-latency background erase/program while reading from another bank in embedded boot code storage, firmware update buffers, and industrial HMI firmware partitions.
For engineers reviewing the S29JL032J70TFI023 datasheet, S29JL032J70TFI023 pinout, S29JL032J70TFI023 application, or S29JL032J70TFI023 equivalent, key selection criteria include simultaneous bank operation support, secured silicon region (256-byte OTP), JEDEC CFI compliance, hardware write protection via WP#/ACC, and 48-ball FBGA package compatibility with legacy TSOP footprint designs.
Technical Context
The S29JL032J70TFI023 implements a true four-bank flash architecture where two banks operate concurrently-one for read, one for erase/program-with fixed sector addresses and software-defined bank grouping. Its command register accepts JEDEC-standard single-power-supply flash commands using standard microprocessor write timing.
It integrates dual power management modes: automatic sleep (200 nA) triggered by address stability, and standby mode (200 nA), both enabled without external control. Status detection combines hardware RY/BY# output with software-visible DQ7 polling and DQ6/DQ2 toggle bits for precise cycle completion monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mb (4,194,304 × 8-bit or 2,097,152 × 16-bit); supports byte/word mode selection via BYTE# pin. |
| Access Time | 70 ns max tACC; enables direct execution from flash in real-time control loops with ≤14.3 MHz bus timing. |
| Banks | Four independent banks; allows concurrent read from one bank while erasing/programming another-no latency penalty. |
| Secured Silicon Region | 256-byte OTP sector; factory-locked 16-byte ESN + customer-lockable area for secure firmware keys or calibration data. |
| Power Consumption | 2 mA active read current at 1 MHz; 200 nA in automatic sleep-enables always-on firmware storage in battery-backed systems. |
| Erase Endurance | 100,000 cycles per sector; supports field firmware updates over 10+ years in industrial gateways. |
| Data Retention | 20 years typical at 125°C; validated for automotive under-hood and industrial high-temp storage applications. |
Pinout & Package
Package: 48-ball fine-pitch BGA (VBK048 footprint, 0.8 mm pitch, 8.0 mm × 10.0 mm body).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | 21-bit address bus; A-1 used only in word mode for DQ15/A-1 multiplexing-supports full 2M-word addressing. |
| DQ0–DQ15 | Data I/O (16-bit) | Bidirectional data bus; DQ15/A-1 functions as address bit in word mode or data bit in byte mode per BYTE# state. |
| CE#, WE#, OE# | Chip/Write/Output Enable | Standard 3-state control signals; prevent bus contention during multi-device sharing and enable low-power gating. |
| RY/BY# | Ready/Busy Output | Active-low open-drain status signal; drives external interrupt or wait-state logic during erase/program cycles. |
| WP#/ACC | Write Protect / Acceleration | Dual-function pin: WP# protects boot sectors unconditionally; ACC reduces program time to 6 µs/word when asserted. |
| RESET# | Hardware Reset | Asynchronous active-low input; forces device into read mode and clears internal state machine-critical for safe power-up recovery. |
| BYTE# | Byte/Word Mode Select | High = byte mode (DQ7–DQ0 active); low = word mode (DQ15–DQ0 active)-configures data bus width at power-on. |
Key Features
| Feature | Design Value |
|---|---|
| Erase Suspend/Resume | Pauses ongoing sector erase to allow immediate read/program of non-erasing sectors-enables true background firmware patching. |
| Boot Sector Configuration | Selectable top or bottom 64 KB boot block; supports dual-image bootloaders and fail-safe firmware rollback in medical devices. |
| CFI Compliance | Fully implements JEDEC JESD68 Common Flash Interface; enables auto-detection and vendor-agnostic driver integration in Linux/U-Boot. |
| Zero-Power Architecture | Internal power gating cuts supply current to 200 nA during idle; eliminates need for external power switches in energy-harvesting nodes. |
| Hardware Sector Protection | Lock/unlock any sector combination via WP# or command sequence; prevents accidental overwrite of bootloader or calibration tables. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing dual firmware images and runtime parameter tables in programmable logic controllers with hot-swap capability. IC Role / Device Role / Timing Role: Non-volatile code and configuration storage with simultaneous read during field firmware update. Use Value: Zero-latency bank switching enables uninterrupted I/O scanning during firmware upgrade-no system downtime required. |
Use Scenario: Holding boot code and safety-critical sensor calibration data in radar control units requiring ASIL-B compliance. IC Role / Device Role / Timing Role: Secure, high-reliability boot memory with Secured Silicon Region for cryptographic keys and tamper-evident ESN. Use Value: 20-year data retention at 125°C and 100K erase cycles ensure lifetime integrity across vehicle service life. |
| Medical Imaging System BIOS | Smart Grid Communication Module |
|
Use Scenario: Hosting diagnostic self-test routines and regulatory-compliant boot firmware in portable ultrasound devices. IC Role / Device Role / Timing Role: Trusted boot source with hardware write protection (WP#) and CFI-based firmware validation. Use Value: Factory-locked Secured Silicon Region stores FDA-mandated serial traceability data-immutable and verifiable via autoselect. |
Use Scenario: Firmware storage in DIN-rail mounted IoT gateways performing OTA updates over cellular/LPWAN links. IC Role / Device Role / Timing Role: Field-upgradable flash with erase suspend to maintain real-time metering during partial reflash. Use Value: Background erase allows continuous data logging while updating application layer-no packet loss during maintenance windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29JL032J60TFI020 | 60 ns access time; same 48-ball FBGA package and pinout; identical feature set except faster timing. | Required where bus clock exceeds 14.3 MHz (e.g., high-speed DSP co-processors). | Select when system timing budget demands sub-70 ns read latency; otherwise S29JL032J70TFI023 offers better noise margin. |
| MX29LV320ETTI-70G | 32 Mb, 70 ns, 3 V; single-bank architecture; no simultaneous read/write; lacks secured silicon region. | Suitable for cost-sensitive, non-updatable boot ROMs where background operations are unnecessary. | Choose only if zero-latency bank switching and OTP security are not required-lower BOM cost but reduced field upgrade capability. |
Compared with S29JL032J60TFI020, this part trades 10 ns speed for improved noise immunity; versus MX29LV320ETTI-70G, it adds concurrent operation and secure key storage-critical for updatable, safety-certified systems.
Availability
S29JL032J70TFI023 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system BIOS requiring stable component supply, long-term lifecycle support, and qualified automotive-grade sourcing.
Supply support for S29JL032J70TFI023 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 and ISO 9001 certification.
The S29JL032J belongs to Infineon's legacy Cypress flash memory portfolio, designed specifically for reliable, in-system programmable code storage in safety-critical and long-lifecycle embedded systems.
FAQ
Is S29JL032J70TFI023 pin-compatible with older S29JL032J variants?
Yes-S29JL032J70TFI023 uses the same 48-ball FBGA (VBK048) package and identical pin mapping as all S29JL032J speed grades. Mechanical and electrical pin compatibility is maintained across Rev. *J datasheet revisions, including CE#, WE#, OE#, RY/BY#, and WP#/ACC signal assignments.
Does the Secured Silicon Region support customer programming after factory shipment?
Yes-the 256-byte Secured Silicon Region is fully accessible for read/write like any other sector until permanently locked via the One-Time Programmable (OTP) command. Once locked, DQ6 becomes a permanent "1", and all data-including factory ESN-is immutable and verifiable through autoselect mode.
How does simultaneous read/write impact system-level timing design?
Simultaneous operation eliminates wait states: while Bank 0 executes a 100 ms sector erase, Bank 1 delivers continuous 70 ns reads to the CPU. This requires no additional glue logic-only proper bank address decoding and software coordination to avoid accessing the busy bank during erase/program cycles.
Can S29JL032J70TFI023 operate on a 2.7 V supply?
No-S29JL032J70TFI023 is specified for 3.0 V to 3.6 V operation only. The "70" speed grade corresponds to the 3.0–3.6 V voltage range; operation below 2.95 V may cause command failures, incomplete writes, or premature RY/BY# timeout-use S29JL032J70BHI020 for 2.7–3.6 V support.
S29JL032J70TFI023 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- JL-J
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not 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
S29JL032J70TFI023 FAQ
1.How can I place an order for S29JL032J70TFI023 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29JL032J70TFI023 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 S29JL032J70TFI023 reliable?
The price and inventory of S29JL032J70TFI023 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29JL032J70TFI023 is usually 5 days.
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4.How is shipping managed for S29JL032J70TFI023?
S29JL032J70TFI023 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29JL032J70TFI023 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 S29JL032J70TFI023?
For technical support, including S29JL032J70TFI023 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29JL032J70TFI023 requirements.
6.How does Aetrix verify that S29JL032J70TFI023 is sourced from the original manufacturer or authorized distributors?
All S29JL032J70TFI023 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 S29JL032J70TFI023 meets industry standards.
7.What is the process for return or replacement of S29JL032J70TFI023?
All S29JL032J70TFI023 units undergo pre-shipment inspection (PSI). If there is an issue with S29JL032J70TFI023, 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 S29JL032J70TFI023 part is unused and in its original packaging.
Return procedure for S29JL032J70TFI023:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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