MC74LVX CMOS Logic Family

A new LVX Low-Voltage CMOS Logic family from Motorola provides cost sensitive solutions for a wide range of low-voltage applications for consumer and portable products. The new MC74LVX family is an industry standard 3V CMOS logic family, with 5V tolerant inputs allowing designers to mix 3V and 5V devices in their designs without additional protection circuits.

The MC74LVX family utilizes a 0.8 micron CMOS technology process which enables it to be a fast, very low noise, low cost family. The family's low power consumption (Icc = 4 microamps at 25 degrees C) lengthens battery life, and low noise (Volp = 0.5V typical) allows the circuit designer to design with less worry about system noise. High speed (4.7ns typical at Vcc = 3.3V) makes the family ideal for telecom and portable applications. The family's inherent high reliability and long product life are also features that suit industrial, telecom and computer applications.

"Our LVX CMOS family provides our customers with a very cost- effective logic solution for their low-voltage needs," said Lance Packer, strategic marketing manager in Motorola's Semiconductor Components Group. "As a member of the Low-Voltage Logic Alliance, our introduction and availability of the Motorola LVX family offers an additional source to the market."

The LVX family of devices, a family from the Low-Voltage Logic Alliance, is pin-for-pin, functionally and spec compatible to the LVX families from Toshiba and Fairchild Semiconductor. The Low- Voltage Logic Alliance was established in July 1993 in response to customer needs for low-voltage solutions that deliver high-speed operation. Through standards development and the introduction of high performance, low-voltage CMOS logic products, the Alliance enables the acceptance of low-voltage logic in the industry.

The first 17 LVX functions are available now. Lead time ranges from 4 to 8 weeks depending on device, package and volume. Available in industry standard packaging (JEDEC & EIAJ SOIC, TSSOP), the operating temperature range is -40 degrees C to +85 degrees C.

It has always to be remembered that a product is not necessarily a hit because of some technological wonder; any manufacturer would prefer the sales volumes rather than the kudos! These parts fit into the numbers column rather than the performance breakthrough, which has already been proven. The addition of Motorola to the existing two manufacturers of low-voltage logic is a sign of the Alliance's commitment to the market and the designing of the parts into solutions. It needed another major manufacturing source, as a bellwether, for a number of potential designs to proceed using the low-voltage, high-speed parts; we should now expect to see a fairly dramatic increase in mixed 3- and 5-V logic in the same circuit design.

It will be interesting to see how the noise performance of the Motorola parts compares, in practice, to the existing Fairchild and Toshiba products. There can be no question that the parts have been priced right, as the commodities they will become. As noted, the first 17 parts are available in standard packages with 5000 lot pricing:

MC74LVX00 Quad 2-Input NAND Gate $ 0.18, MC74LVX02 Quad 2-Input NOR Gate $0.18, MC74LVX04 Hex Inverter $0.18, MC74LVX08 Quad 2-Input AND Gate $0.18, MC74LVX14 Hex Schmitt Trigger Inverter $0.18, MC74LVX32 Quad 2-Input OR Gate $0.18, MC74LVX74 Dual D Flip-Flop with Set and Reset $0.18, MC74LVX86 Quad 2-Input Exclusive OR Gate $0.18, MC74LVX125 Quad Buffer (3-State, Non-Inverting) $0.23, MC74LVX138 1-of-8 Decoder/Demultiplexer $0.23, MC74LVX157 Quad 2-Input Multiplexer $0.23, MC74LVX240 Octal Buffer (3-State, Inverting) $0.27 MC74LVX244 Octal Buffer (3-State, Non-Inverting) $0.27, MC74LVX245 Octal Bus Transceiver (3-State, Non-Inverting) $0.27, MC74LVX373 Octal Transparent Latch (3-State, Non-Inverting) $0.27, MC74LVX374 Octal D Flip-Flop (3-State, Non-Inverting) $0.27, MC74LVX573 Octal Transparent Latch (3-State, Non-Inverting) $0.27.