25C320 - Microchip

25C320 Bus Serial EEPROM

The Microchip Technology Inc. 25AA320/25LC320/ 25C320 (25XX320*) are 32 Kbit serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral Interface (SPI™) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip S.

Features

• Low-power CMOS technology: - Write current: 3 mA maximum - Read current: 500 µA typical - Standby current: 500 nA typical
• 4096 x 8 bit organization
• 32 byte page
• Write cycle time: 5 ms maximum
• Self-timed erase and write cycles
• Block write protection: - Protect none, 1/4, 1/2 or all of array
• Built-in write protection: - Power on/off data protection circuitry - Write enable latch - Write-protect pin
• Sequential read
• High reliability: - Endurance: 1M E/W cycles - Data retention: > 200 years - ESD protection: > 4000V
• 8-pin PDIP, SOIC and TSSOP packages
• 14-.