SN74LS279AD

The SN74LS279AD is a Quad S-R Latch integrated circuit manufactured by Texas Instruments. This component is designed for digital logic applications, providing four independent S-R latch circuits within a single package.

Key electrical specifications include a maximum data rate of 70 Mbps and an operating voltage range of 4.75V to 5.25V. The device operates within a temperature range of 0°C to 70°C. It features a standard push-pull output type and a bipolar input type, characteristic of the LS technology family.

The SN74LS279AD is available in a 16-SOIC package, designed for surface mount applications. Its delay time is specified at 12 ns, and it offers very high speed performance. The '279 offers 4 basic S-R flip-flop latches in one 16-pin, 300-mil package. Under conventional operation, the S-R inputs are normally held high. When the S input is pulsed low, the Q output will be set high. When R is pulsed low, the Q output will be reset low. Normally, the S-R inputs should not be taken low simultaneously. The Q output will be unpredictable in this condition.

This latch is suitable for various digital circuit designs requiring reliable state storage and manipulation. Its compact SOIC package makes it suitable for space-constrained applications.