Cypress Semiconductor Corp S25FL128LDPMFI000

Overview

S25FL128LDPMFI000 from Infineon is a 128-Mbit serial NOR flash memory with Quad SPI interface, 3.0–3.6 V supply voltage, 100 MHz clock frequency, and 133 MHz equivalent data rate in QPI mode. It operates across industrial temperature range (−40°C to +85°C) and supports uniform 4-KB sectors for flexible firmware updates in microcontroller-based edge devices.

For engineers reviewing the S25FL128LDPMFI000 datasheet, S25FL128LDPMFI000 pinout, S25FL128LDPMFI000 application, or S25FL128LDPMFI000 equivalent, key selection criteria include sector protection granularity, XIP capability, reset recovery time, and JEDEC JESD216-compliant SFDP register support.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with extended Quad I/O (QPI) mode for higher throughput. It features a 24-bit address space, configurable write protection via status registers, and hardware reset pin (RST#) for deterministic initialization.

The memory array is organized as 256 Kbytes × 64 bits, supporting byte/word/page programming and sector/chip erase. It includes a 256-byte page buffer and supports deep power-down mode with 10 µA typical standby current.

Key Specifications

Pinout & Package

Supplied in an 8-pin SOIC (208-mil) package with standard SPI pinout and dedicated reset input.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash applications.

Compared with S25FL128SAGMFI000, this part offers simpler power architecture and lower security overhead; versus MX25L12833FZNI-10G, it delivers faster startup, deterministic reset behavior, and plug-and-play configuration via SFDP.

Availability

S25FL128LDPMFI000 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and medical device firmware storage requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FL128LDPMFI000 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 AG is a German semiconductor manufacturer specializing in power management, sensing, and memory solutions for industrial, automotive, and IoT applications.

This device belongs to the S25FL family of high-performance serial NOR flash memories designed for reliable code storage and execution in resource-constrained embedded systems with demanding environmental and timing requirements.

FAQ

Does S25FL128LDPMFI000 support execute-in-place (XIP) operation?

Yes, it supports XIP mode with low-latency random read access (tCR ≤ 8 ns) and continuous read commands. The device allows direct CPU instruction fetch from flash without copying to RAM, reducing boot time and SRAM usage in Cortex-M and RISC-V microcontrollers.

What is the endurance rating and data retention specification?

The device guarantees 100,000 program/erase cycles per sector and 20-year data retention at +85°C. These values are validated per JEDEC JESD22-A117 and apply to all 4-KB sectors under specified operating conditions.

Is hardware write protection enabled by default after power-up?

No, hardware write protection is disabled by default. WP# must be driven low and appropriate status register bits (SRWD, BP bits) programmed to activate sector protection. Default state allows unrestricted writes until explicitly configured.

Can S25FL128LDPMFI000 be used with legacy SPI controllers that do not support QPI?

Yes, it is fully backward-compatible with standard SPI mode (single I/O) and dual I/O mode. All commands and register access function identically; QPI mode is optional and activated only after issuing the appropriate enable command.