Infineon Technologies S29JL032J70TFI320
- Part No.:
- S29JL032J70TFI320
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29JL032J70TFI320.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:

- Shipping:

Inventory:3,065
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Product details
Overview
S29JL032J70TFI320 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 secured silicon region. It enables zero-latency background erase/program while reading from another bank in industrial control firmware storage and boot code execution.
For engineers reviewing the S29JL032J70TFI320 datasheet, S29JL032J70TFI320 pinout, S29JL032J70TFI320 application, or S29JL032J70TFI320 equivalent, key selection criteria include simultaneous bank operation support, JEDEC CFI compliance, hardware sector protection, 20-year data retention, and TSOP/FBGA package compatibility for legacy embedded system upgrades.
Technical Context
The S29JL032J70TFI320 implements a true four-bank architecture where two banks operate concurrently-one for read, one for erase/program-with fixed sector addresses and software-defined bank grouping. Its command interface complies fully with JEDEC 42.4 single-power-supply Flash standards, using standard microprocessor write timings and autoselect mode for device identification.
Hardware features include RY/BY# status signaling, RESET# for state machine recovery, WP#/ACC for boot-sector write protection and accelerated programming, and BYTE# for 8-/16-bit mode selection. Power management supports automatic sleep mode (200 nA) and standby mode, triggered by address stability or CE#/OE# control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mb (4,194,304 × 8-bit or 2,097,152 × 16-bit), enabling full firmware image storage in single-device footprint. |
| Access Time | 70 ns max (tACC), ensuring compatibility with 14 MHz bus timing in legacy microcontroller interfaces. |
| Supply Voltage | 3.0–3.6 V only, eliminating need for dual-voltage regulators in 3.3 V systems. |
| Cycling Endurance | 100,000 program/erase cycles per sector, supporting field-upgradable firmware with long service life. |
| Data Retention | 20 years typical, validated under JEDEC JESD22-A117 conditions for industrial temperature operation. |
| Power Consumption | 2 mA active read current at 1 MHz; 200 nA in automatic sleep mode-critical for low-duty-cycle remote sensors. |
| Bank Architecture | Four independent banks, allowing concurrent read from one bank while erasing/programming another-zero-latency background operation. |
Pinout & Package
Package: 48-pin TSOP (Type I, standard pitch) and 48-ball FBGA (VBK048). Pin functions are identical across packages; ball/pin numbering differs per mechanical layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; controls device participation in bus transactions and enables power-down entry. |
| WE# | Write Enable | Active-low signal initiating command latching or data programming; must be asserted with valid address/data. |
| OE# | Output Enable | Active-low control for output buffer enable; used during read operations to avoid bus contention. |
| RY/BY# | Ready/Busy Output | Open-drain status indicator: high = ready, low = busy during program/erase-hardware polling alternative to DQ7/DQ6. |
| RESET# | Hardware Reset | Active-low input forcing internal state machine into read mode; required after power-up or error recovery. |
| WP#/ACC | Write Protect / Acceleration | Dual-function pin: low = protects top/bottom boot sectors; high = enables accelerated programming (6 µs/word). |
| BYTE# | Bus Width Select | High = 16-bit word mode (DQ15–DQ0); low = 8-bit byte mode (DQ7–DQ0)-configures data path without external logic. |
| DQ0–DQ15 | Data Input/Output | Bidirectional data bus; direction controlled by WE#, OE#, and BYTE#; supports CFI query and command execution. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Read/Write | Zero-latency concurrent operation across two independent banks-enables real-time firmware updates without halting host CPU. |
| Secured Silicon Region | 256-byte factory-locked or customer-one-time-programmable sector with verifiable electronic serial number-supports secure boot key storage. |
| Erase Suspend/Resume | Pause ongoing sector erase to read/program any non-erasing sector, then resume-enables priority interrupt handling in safety-critical systems. |
| Hardware Sector Protection | Independent lock/unlock of any sector combination via WP# and command sequence-prevents accidental corruption of boot code or calibration data. |
| JEDEC CFI Compliance | Standardized parameter table accessible via autoselect mode-enables automatic driver detection and cross-vendor firmware portability. |
Applications
| Industrial PLC Firmware Storage | Automotive Body Control Module Boot Memory |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with runtime validation requirements. IC Role / Device Role / Timing Role: Nonvolatile program memory with simultaneous read/write capability-executes active control code while background-flashing updated logic. Use Value: Eliminates 500+ ms downtime during firmware upgrade; 20-year retention ensures 15+ year field deployment without refresh. |
Use Scenario: Holding boot loader and safety-critical initialization code in automotive BCMs requiring ASIL-B compliant memory integrity. IC Role / Device Role / Timing Role: Boot sector flash with hardware write protection and secured silicon region-guards against unauthorized reprogramming and stores cryptographic keys. Use Value: WP#/ACC pin enables permanent boot-sector lock; Secured Silicon Region provides tamper-evident serial number for ECU authentication. |
| Medical Diagnostic Equipment Configuration | Telecom Base Station FPGA Bitstream Storage |
|
Use Scenario: Storing calibrated sensor offsets, user preferences, and regulatory configuration profiles in portable ultrasound devices. IC Role / Device Role / Timing Role: Parameter storage with sector-level erase granularity-allows selective update of calibration data without disturbing firmware. Use Value: 100K endurance per sector supports >10,000 recalibrations over product lifetime; CFI interface simplifies host driver development. |
Use Scenario: Storing Xilinx/Intel FPGA configuration bitstreams in outdoor macro base stations with thermal cycling exposure. IC Role / Device Role / Timing Role: High-reliability configuration memory with automatic sleep mode-reduces standby power in fanless enclosures. Use Value: 200 nA sleep current extends backup battery life; 70 ns access meets FPGA configuration timing budgets for fast reboot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL032N90TFI020 | 45 nm process, 90 ns access, single-bank architecture, no simultaneous read/write | Lacks zero-latency background operation; requires software-managed erase/program sequencing | Select when cost sensitivity outweighs concurrent operation needs and legacy timing margins allow 90 ns. |
| MX29GL320EHTI-90G | Micron device, 90 ns, CFI-compliant, but no secured silicon region or erase suspend/resume | No hardware-based secure key storage; no ability to interrupt erase for urgent reads | Prefer for high-volume consumer applications where security and interrupt latency are non-critical. |
Compared with S29GL032N90TFI020 and MX29GL320EHTI-90G, the S29JL032J70TFI320 uniquely delivers simultaneous bank operation and secured silicon-making it essential for real-time upgradable industrial firmware and safety-certified boot storage where zero-latency updates and cryptographic key isolation are mandatory.
Availability
S29JL032J70TFI320 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control module boot memory, and medical diagnostic equipment configuration requiring stable component supply and long-term lifecycle support.
Supply support for S29JL032J70TFI320 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 memory solutions with ISO 9001 and IATF 16949 certified manufacturing.
The S29JL032J belongs to Infineon's legacy Cypress flash memory portfolio, designed specifically for industrial and automotive systems requiring robust in-system programmability, hardware data protection, and long-term reliability in extended temperature environments.
FAQ
Is S29JL032J70TFI320 pin-compatible with earlier S29JL032J variants?
Yes-S29JL032J70TFI320 uses the same 48-pin TSOP and 48-ball FBGA footprints as other S29JL032J speed grades. Pin functions, voltage tolerances, and command set are identical; only tACC (70 ns) and operating voltage range (3.0–3.6 V) are specified for this variant. No PCB redesign is needed for drop-in replacement.
Does the Secured Silicon Region support cryptographic key generation?
No-the Secured Silicon Region provides 256 bytes of factory-locked or customer-one-time-programmable space with a verifiable 16-byte electronic serial number. It does not include on-chip RNG or crypto acceleration; keys must be generated externally and written once, then permanently locked via the autoselect command sequence.
Can Erase Suspend be used during sector erase in all package types?
Yes-Erase Suspend/Erase Resume functionality is implemented in silicon and available across all S29JL032J packages (TSOP and FBGA). It operates independently of package type and requires no external circuitry; activation uses standard CFI command sequences defined in datasheet section 10.8.
What is the minimum pulse width for RESET# to ensure reliable recovery?
The RESET# pin requires a minimum low pulse width of 100 ns to guarantee internal state machine reset and return to read mode. This is specified in AC Characteristics Table 17.2 (page 49 of datasheet Rev. *J); shorter pulses may result in incomplete reset and undefined command behavior.
S29JL032J70TFI320 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:
- 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
S29JL032J70TFI320 FAQ
1.How can I place an order for S29JL032J70TFI320 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29JL032J70TFI320 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 S29JL032J70TFI320 reliable?
The price and inventory of S29JL032J70TFI320 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29JL032J70TFI320 is usually 5 days.
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4.How is shipping managed for S29JL032J70TFI320?
S29JL032J70TFI320 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29JL032J70TFI320 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 S29JL032J70TFI320?
For technical support, including S29JL032J70TFI320 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29JL032J70TFI320 requirements.
6.How does Aetrix verify that S29JL032J70TFI320 is sourced from the original manufacturer or authorized distributors?
All S29JL032J70TFI320 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 S29JL032J70TFI320 meets industry standards.
7.What is the process for return or replacement of S29JL032J70TFI320?
All S29JL032J70TFI320 units undergo pre-shipment inspection (PSI). If there is an issue with S29JL032J70TFI320, 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 S29JL032J70TFI320 part is unused and in its original packaging.
Return procedure for S29JL032J70TFI320:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S29JL032J70TFI320 Tags

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