Infineon Technologies S29JL032J70TFI223

Overview

S29JL032J70TFI223 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 in one bank while reading from another-critical for real-time firmware updates in industrial controllers.

For engineers reviewing the S29JL032J70TFI223 datasheet, S29JL032J70TFI223 pinout, S29JL032J70TFI223 application, or S29JL032J70TFI223 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 FBGA/TSOP package compatibility for space-constrained embedded designs.

Technical Context

The S29JL032J70TFI223 implements a true four-bank flash architecture with fixed sector addressing, enabling concurrent read and program/erase operations across non-overlapping banks. Its dual-mode interface supports both byte (DQ7–DQ0) and word (DQ15–DQ0) data transfers, controlled by BYTE# pin state.

Internal voltage regulation generates required high-voltage pulses for programming and erasing using only a single 3.0 V supply. Status reporting uses three independent methods: RY/BY# pin, DQ7 data polling, and DQ6/DQ2 toggle bits-ensuring robust operation under varying bus timing constraints.

Key Specifications

Pinout & Package

Package: 48-ball Fine-pitch BGA (VBK048 footprint), RoHS-compliant, 7 mm × 9 mm body, 0.8 mm ball pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar flash memory applications.

Compared with S29GL032N70TFI020 and MX29GL320EBTI-70G, the S29JL032J70TFI223 uniquely combines JEDEC CFI compliance, secured silicon OTP, and true four-bank simultaneous operation-making it the only option supporting certified secure firmware updates in safety-critical embedded systems without external voltage support.

Availability

S29JL032J70TFI223 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, medical infusion pump bootloaders, and smart energy meter firmware requiring stable component supply across multi-year production cycles.

Supply support for S29JL032J70TFI223 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, sensing, and connectivity solutions for automotive, industrial, and IoT applications.

The S29JL032J series belongs to Infineon's legacy NOR flash portfolio-designed specifically for reliable, low-power, in-system programmable code storage in safety-certified and long-lifecycle embedded systems.

FAQ

Does S29JL032J70TFI223 support both 8-bit and 16-bit data bus widths?

Yes. The device operates in byte mode (DQ7–DQ0 active) when BYTE# is high, and word mode (DQ15–DQ0 active) when BYTE# is low. Address lines A0–A20 decode fully in both modes, with A-1 multiplexed on DQ15 in word mode. This dual-width capability simplifies integration with 8-bit microcontrollers and 16-bit DSPs without external data bus logic.

What is the function of the WP#/ACC pin, and how does it affect programming?

WP# (Write Protect) disables programming and erasure of the two outermost boot sectors regardless of software protection status. ACC (Acceleration) enables faster programming when asserted high during command sequences-reducing typical word-program time from 12 µs to 6 µs. Both functions are implemented in hardware and require no firmware intervention.

How is the Secured Silicon Region accessed and locked?

The 256-byte Secured Silicon Region is accessed via dedicated CFI command sequences (Enter/Exit Secured Silicon Region). Factory locking is verified by DQ6 = 1 in autoselect mode; customer locking is performed once using the Lock Secured Silicon command-after which all writes to the region are permanently disabled and DQ6 remains 1.

Can S29JL032J70TFI223 be used in systems requiring -40°C to +85°C operation?

Yes. The S29JL032J70TFI223 is specified for industrial temperature range (-40°C to +85°C) with guaranteed performance across VCC = 3.0 V to 3.6 V. All AC/DC characteristics-including 70 ns access time, 200 nA standby current, and 100K endurance-are validated across this full range per datasheet Rev. *J Section 13.