AT24C08C-XHM-T

AT24C08C-XHM-T is a serial I2C EEPROM from the AT24C08 family. It provides 8 kilobits (1024 bytes) of non-volatile memory for storing small amounts of data (config, calibration, logs, etc.).
Key points:
- Interface: I2C two-wire bus (standard/fast modes); hardware address pins A0–A2 allow multiple devices on the same bus.
- Organization: 1024 bytes total; generally uses 16-byte page writes.
- Endurance and retention: typically up to about 1,000,000 write cycles with data retention of many years.
- Power: operates from a single supply, commonly in the 1.7–5.5 V range.
- Write: page write supports writing up to a 16-byte page in one operation; tWC (write cycle time) up to a few milliseconds.
- Packaging/grade: the -T suffix denotes a packaging/variant option; XHM often indicates a specific temperature rating (e.g., extended/automotive) and packaging variant. Check the datasheet for exact specs.
Applications: small, non-volatile memory for microcontrollers, sensors, and embedded systems.

Equivalent 8Kbit I2C EEPROMs to AT24C08C-XHM-T include:
- Microchip: 24C08/24LC08/24AA08
- ST: M24C08-W
- ON Semiconductor: CAT24C08 (and CAT24C08A)
- Renesas: R24C08
All are 8K I2C EEPROMs with the same interface and similar pinouts.

AT24C08C-XHM-T features:
- 8 Kbit serial EEPROM (1024 x 8) with I2C bus interface
- I2C two-wire bus: Standard mode up to 100 kHz, Fast mode up to 400 kHz
- 3 address pins (A0–A2) for device addressing and a WP pin for write protection
- 16-byte page write; supports random and sequential reads/writes
- Typical write cycle time ≈ 5 ms
- Endurance: ~1,000,000 write cycles
- Data retention: ~100 years
- Operating voltage: 1.8 V to 5.5 V
- Temperature range: -40°C to +85°C (industrial)
- 8-pin package (XHM), Tape & Reel option available with -T suffix
Note: Specifics can vary by package revision; consult the datasheet for exact electrical characteristics.

Pin count: 8 pins.
Pin functions (AT24C08C-XHM-T):
- Pin 1: A0
- Pin 2: A1
- Pin 3: A2
- Pin 4: GND
- Pin 5: SDA (I2C data)
- Pin 6: SCL (I2C clock)
- Pin 7: WP (Write Protect)
- Pin 8: VCC
Notes: 8-kbit I2C serial EEPROM (1K × 8) with a two-wire interface.

Manufacturer: Atmel Corporation (now part of Microchip Technology Inc.). Microchip is a multinational semiconductor company that designs and manufactures memory devices (like EEPROMs), microcontrollers, and other integrated circuits.

AT24C08C-XHM-T is an 8‑Kbit (1 KB) I2C EEPROM. Typical application areas include:
- Storing device configuration, calibration constants, serial numbers/IDs, and security keys
- Non-volatile data logging: counters, status flags, small event records
- Lookup tables, sensor offsets, aging/data tables used by MCUs/FPGA
- User preferences and small firmware/config data in consumer electronics (printers, set‑top boxes, appliances)
- Configuration memory in industrial/automation equipment
- Any embedded system requiring persistent, low‑power memory for parameter storage

8-pin Small Outline Integrated Circuit (SOIC) package; Tape & Reel version (XHM-T).