SRAM Chip Sync Single 3.3V/5V 2K-Bit 256 x 8 3.4us 8-Pin SO Tube

The PCF8570 is a low power static CMOS RAM, organized as 256 words by 8-bits. Addresses and data are transferred serially via a two-line bidirectional bus (I²C-bus). The built-in word address register is incremented automatically after each written or read data byte. Three address pins, A0, A1 and A2 are used to define the hardware address, allowing the use of up to 8 devices connected to the bus without additional hardware.

• Operating supply voltage 2.5 to 6.0 V
• Low data retention voltage; minimum 1.0 V
• Low standby current; maximum 15 µA
• Power-saving mode; typical 50 nA
• Serial input/output bus (I²C-bus)
• Address by 3 hardware address pins
• Automatic word address incrementing
• Available in DIP8 and SO8 packages.