23K256T-I/SN

Introduction to 23K256T-I/SN
- Type: 256-kilobit serial EEPROM (non-volatile memory) in an 8-pin package, typically used to store small data that must persist across power cycles.
- Interface: I2C two-wire bus (SCL, SDA) with address pins to allow multiple devices on the same bus.
- Organization: 32 Kbytes (32K x 8); supports random read/write; writes are performed in pages (commonly 32 bytes per page).
- Endurance/Retention: around 1,000,000 write cycles with data retention on the order of decades.
- Supply and range: operating voltage typically in the low to mid 2.7–5.5 V range; designed for industrial temperature applications (and RoHS-compliant packaging).
- Package/marking: 8-pin package; suffix /SN indicates a standard RoHS-compliant variant (exact package style may vary by vendor).
Common uses: small configuration data, calibration tables, and other non-volatile storage needs in embedded systems.
Note: Confirm exact electrical specs (voltage range, timing, page size) from the official datasheet for the specific supplier revision.

Here are the typical features for a 23K256T-I/SN Serial EEPROM (256 kbit):
- 256 kbit capacity (32 kB) non-volatile memory
- SPI serial interface (4-wire: CS, CLK, MOSI, MISO)
- 2-byte (16-bit) addressing to access the full memory array
- Random and sequential read; page write support
- Page write size commonly 32 bytes
- Write In Progress (WIP) and optional status/well-known flags
- Write protection via WP pin; hardware write-lock options
- Endurance ~1,000,000 write cycles; data retention ~40 years
- Low power consumption; active and standby/deep-power-down modes
- Operating voltage typically 2.7–5.5 V (variant-dependent)
- Industrial temperature variant available (I may denote -40°C to +85°C)
- 8-pin package (common options: SOP/SOIC); RoHS-compliant in SN variants
Note: exact voltage range, page size, and timing can vary by manufacturer and exact sub-variant—check the specific datasheet for precise specs.

An 8-pin SOIC (SOP-8) package.

- Pin count: 8 pins (8-pin package).
- Function: 256 kbit serial SRAM (32K × 8) with an SPI-compatible interface (read/write memory for fast random access). Industrial temperature version (I) with RoHS-compliant package (SN).

Manufacturer: Microchip Technology Inc.
What kind of company: An American multinational semiconductor company that designs and manufactures integrated circuits, including microcontrollers, memory devices, and analog ICs for embedded systems.

23K256T-I/SN is a 256-kbit SPI serial SRAM (32K × 8). Common applications:
- Data buffering and caches for microcontrollers
- Look-up tables
- Frame buffers for small displays
- Scratchpad memory
- Sensor data logging/buffering
- Network/communications buffering
- Automotive and industrial control equipment
- Portable/embedded devices needing low-pin, compact RAM
Useful wherever a small, fast, single‑chip RAM with an SPI interface is needed.

Equivalent 256-Kbit SPI Serial EEPROMs:
- Microchip 25LC256
- Microchip 25AA256
- Atmel/Atmel-derived AT25K256
Note: check exact voltage range (2.7–5.5 V), speed, and package/power pins for cross-compatibility.