25C320/SN

The Microchip Technology 25C320/SN is a 32 Kbit serial Electrically Erasable PROM (EEPROM) designed for efficient data storage. It utilizes a standard SPI compatible serial bus for communication, requiring clock (SCK), data in (SI), and data out (SO) lines, controlled by a Chip Select (CS) input. This device offers a memory organization of 4K x 8 bits and operates with a voltage range of 4.5V to 5.5V.

Key electrical characteristics include a maximum clock frequency of 3 MHz, a write cycle time of 5 ms, and low power consumption with a typical read current of 500 μA and a standby current of 500 nA. The EEPROM boasts high reliability with an endurance of 1M E/W cycles and data retention exceeding 200 years. It also features built-in write protection mechanisms, including power on/off data protection circuitry, a write enable latch, and a write-protect pin.

The 25C320/SN is available in an 8-SOIC package, suitable for surface mount applications. Its operating temperature range is 0°C to 70°C (TA), making it suitable for various industrial environments. The device also includes features like sequential read capability and block write protection, allowing for flexible array management.