DESCRIPTION

The DS1260 SmartBattery is a low-cost, backup energy supply for portable and nonvolatile electronic equipment. A lithium energy source of up to 1 amp hour can supply power to CMOS electronic circuits when primary power is lost through an intelligent and efficient switch. When power is supplied from the lithium power source, the power fail signal is held low to warn electronic (RESET) circuits of the power status. Energy loss during shipping and handling is avoided by pulsing RESET, thereby causing the backup energy source to be isolated from the exposed pins. The DS1260 can be plugged into a standard 16-pin, low-cost DIP socket, allowing for proven interconnect and simple replacement if the energy has been exhausted.

FEATURES

■ Encapsulated lithium energy cell with shelf life beyond 10 years

■ Available with energy capacities of 250, 500, and 1,000 mAH @ 3 volts

■ Plugs into a standard 16-pin DIP socket

■ Lithium cell electrically disconnects from exposed pins upon command

■ Battery isolation ensures full capacity after shipping and handling

■ Lithium cell automatically reconnects when VCC is applied

■ Recessed pins prevent bending

■ VCC fail signal interrupts processor or write protects memory

■ Exhausted energy cell warning signal

■ Low profile permits mounting on 0.5-inch printed circuit board centers

■ Mates directly with DS1212 Nonvolatile Controller to back up 16 SRAMs

■ Uninterruptible supply for CMOS and portable devices