DESCRIPTION
The Microchip Technology Inc. 24LC04B/08B is a 4K or 8K bit Electrically Erasable PROM. The device is organized as two or four blocks of 256 x 8-bit memory with a 2-wire serial interface. Low voltage design permits operation down to 2.5 volts with typical standby and active currents of only 5 µA and 1 mA respectively. The 24LC04B/08B also has a page-write capability for up to
16 bytes of data. The 24LC04B/08B is available in the standard 8-pin DIP and both 8-lead and 14-lead surface mount SOIC packages.

FEATURES
• Single supply with operation down to 2.5V
• Low power CMOS technology
   - 1 mA active current typical
   - 10 µA standby current typical at 5.5V
   - 5 µA standby current typical at 3.0V
• Organized as two or four blocks of 256 bytes (2 x 256 x 8) and (4 x 256 x 8)
• 2-wire serial interface bus, I2CTMcompatible
• Schmitt trigger, filtered inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (2.5V) and 400 kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 16 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• Factory programming (QTP) available
• ESD protection > 4,000V
• 1,000,000 erase/write cycles guaranteed
• Data retention > 200 years
• 8-pin DIP, 8-lead or 14-lead SOIC packages
• Available for extended temperature ranges
   - Commercial (C): 0°C to +70°C
   - Industrial (I):  -40°C to +85°C