IS25LP512M-RHLE-TR

IS25LP512M-RHLE-TR is a 512-Mb low-power serial flash memory from ISSI (Integrated Silicon Solutions Inc.). It stores firmware or data and is accessed over a high-speed SPI family interface.
Key points:
- Density and interface: 512 Mbit of flash with SPI, plus Dual I/O and Quad I/O (QIO) modes for faster reads.
- Addressing: supports 3-byte and 4-byte addressing to access the full memory (4-byte mode required for 512 Mb).
- Organization and operations: 256-byte pages; erase blocks (commonly 4 KB sectors, and 32 KB/64 KB blocks); program- and erase-times suitable for embedded firmware.
- Speed and protection: fast-read options, continuous/read burst capability, and hardware/ software write protection with status and security features.
- Voltage and packaging: typically 2.7–3.6 V operation; RHLE denotes RoHS-compliant, halogen-free, lead-free packaging. TR indicates Tape-and-Reel packaging for automated assembly.
- Applications: code/storage for microcontrollers, firmware updates, boot flash, and other non-volatile storage in embedded systems.
In short, a high-density, flexible SPI flash ideal for embedded firmware with multiple I/O modes and robust packaging options.

An 8-pin small-outline package (SO8/SOP-8), RoHS-compliant; Tape & Reel (TR) packaging.

- Pin count: 8 pins (8-pin package)
- Function: 512‑Mbit serial flash memory with SPI interface. Pin functions (typical): VCC, VSS (GND), CS# (chip select), CLK (serial clock), DI/SI (data in), DO/SO (data out), WP# (write protect, active low), HOLD# (hold, active low). The device operates under standard SPI modes and supports read/erase/program operations. The TR suffix indicates tape & reel packaging; RHLE denotes RoHS/lead-free variant in an SOIC-style package.

- Manufacturer: Integrated Silicon Solution, Inc. (ISSI).
- Company type: A US-based fabless semiconductor company that designs and markets memory products (NOR flash, DRAM, SRAM, etc.) and outsources manufacturing to foundries.

IS25LP512M-RHLE-TR is a 512-Mbit serial SPI flash memory used as non-volatile code and data storage in embedded systems. Ideal applications include boot memory for MCUs/SoCs, firmware storage and updates, BIOS/UEFI in SBCs, and secure/config data storage. Suitable for automotive ECUs, networking gear, printers, set-top boxes, IoT devices, consumer electronics, and industrial equipment requiring low-power, reliable flash with long-term data retention.

Common equivalents (512-Mbit, 3.3V SPI NOR Flash):
- Winbond W25Q512JV
- Macronix MX25L51245G
- GigaDevice GD25Q512
Note: verify speed grade, IO mode (SPI/DUAL/QUAD), voltage, and package against the IS25LP512M-RHLE-TR datasheet.