The ATMEL136 24C16 PC C IC is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip manufactured by Atmel (now part of Microchip Technology). It is part of the AT24C series, which features I²C (Inter-Integrated Circuit) interface compatibility, making it suitable for low-power, non-volatile memory storage in embedded systems and consumer electronics.
Key Features:
- Memory Capacity: 16 Kbit (2 KB) organized as 256 x 8 bytes.
- Interface: I²C (Two-Wire Serial Interface) with support for 100 kHz (Standard) and 400 kHz (Fast) modes.
- Operating Voltage: Typically 1.7V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Write Protection: Hardware write-protect pin (WP) to prevent accidental writes.
- Endurance: 1,000,000 write cycles (minimum) per byte.
- Data Retention: 100 years (typical) without power.
- Package: Commonly available in 8-pin PDIP, SOIC, or TSSOP packages (exact package depends on the variant).
- Page Write Mode: Supports 16-byte page writes for faster programming.
Applications:
- Storing configuration data in microcontrollers (e.g., AVR, PIC, ARM).
- Data logging in embedded systems.
- Firmware storage in IoT devices.
- Consumer electronics (TVs, set-top boxes, printers).
Pin Configuration (8-Pin Package):
- A0, A1, A2 – Device address selection (for multiple EEPROMs on the same bus).
- GND – Ground.
- SDA – Serial Data Line (I²C).
- SCL – Serial Clock Line (I²C).
- WP – Write Protect (tied to GND for writes, VCC for read-only).
- VCC – Power Supply (1.7V–5.5V).
Advantages:
- Low Power Consumption: Ideal for battery-powered devices.
- Simple Integration: Works with most microcontrollers via I²C.
- Reliable Data Storage: High endurance and long retention.
This EEPROM is widely used in PC motherboards, industrial controllers, and automotive electronics due to its reliability and ease of use. The “PC C” marking may refer to a specific variant or packaging type, so checking the datasheet for exact details is recommended.
