Low-voltage CMOS logic

29 January 2014 Analogue, Mixed Signal, LSI

Diodes Incorporated has announced the 74LV family of low-voltage CMOS logic parts, offering speed and power advantages over legacy 74AHC and 74HC alternatives.

Provided in a choice of 14-pin TSSOP and SOIC packages, the new general purpose logic devices will suit a broad range of computing, networking and consumer electronic products.

Ten of the most common logic functions have initially been introduced: quad two-input AND, NAND, NAND with Schmitt trigger inputs, OR and XOR gates, along with three different types of hex inverter and a hex buffer with open drains. Running off a wide 2,0 V to 5,5 V supply range, the 74LV parts will support both mini cell backed portable and traditional 5 V applications.

With an optimised drive capability, typically delivering 12 mA at 4,5 V, the 74LV logic provides a stronger, faster switching output than the older 74HC or 74AHC parts. In addition, IOFF output circuitry is a design feature across the family, disabling devices when powered down to prevent exposure to harmful back currents.

Inputs are also 5,5 V tolerant, enabling the logic devices to operate comfortably in voltage translations duties. Drawing less than 1 μA in many applications, the 74LV parts will meet the requirements of a variety of energy sensitive circuit designs.

For more information contact Arnold Perumal, Avnet Kopp, +27 (0)11 319 8600, [email protected], www.avnet.co.za

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