BR93L46RF-WE2

BR93L46RF-WE2 is an 8-pin serial EEPROM from ROHM’s BR93L46 family. It provides a small, non-volatile memory for storing calibration data, device IDs, or configuration that must persist without power. It uses a Microwire/SPI-like serial interface (3‑wire) for random and sequential reads and writes.
Key points:
- Capacity and organization: typically a 1 Kbit (128 bytes) memory array, reachable via addressable reads/writes.
- Interface: serial, SPI/Microwire-compatible; supports standard read/write operations with addressing.
- Power and packaging: designed for low power operation; WE2 denotes a specific 8-pin package variant.
- Features: random access, page/byte write capability, data retention after power-down.
Common applications: microcontroller systems, sensors, automotive modules, and consumer electronics needing small, reliable non-volatile memory.
For exact electrical specs (voltage range, timing, endurance, data retention, and pinout) and the precise capacity of BR93L46RF-WE2, consult the ROHM BR93L46RF-WE2 datasheet.

It uses an 8-pin SOP (SOIC-8) package.

- Pin count: 8 pins (DSO/SOP-8 package)
- Function: 1-kilobit serial EEPROM (non-volatile memory) with a Microwire-like serial interface (CS, CLK, DI, DO) for read/write operations. Used to store small data such as calibration/config.

- Manufacturer: ROHM Semiconductor (ROHM Co., Ltd.), Japan.
- Company type: A Japanese multinational electronics components company that designs and manufactures semiconductors and ICs (as well as other electronic components) for automotive, consumer, and industrial markets.

BR93L46RF-WE2 is a 4K-bit I2C serial EEPROM (non-volatile memory).
Applications:
- Non-volatile storage for MCUs: configuration data, calibration constants, device IDs/serial numbers
- Data logging and parameter storage for sensors, IoT, wearables, automotive, and industrial equipment
- Memory extension for embedded systems: menu text, strings, bootloader/firmware parameters
- Identification and traceability: batch/lot data, CRCs

Equivalents (1Kbit Microwire EEPROM family): ST M93C46/M93C46‑W; Atmel AT93C46; Microchip 93LC46B/93LC46; Renesas uPD93C46; ON Semiconductor CAT93C46. These share the Microwire 93C46 interface; verify pinout, voltage range, and timing against BR93L46RF-WE2 datasheet for exact compatibility.