NC7WB3125 Series

2-Bit Low Power Bus Switch

Catalog

2-Bit Low Power Bus Switch

Part	Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Independent Circuits	Circuit	Package / Case [y]	Package / Case	Package / Case [y]	Voltage Supply Source	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]
ON Semiconductor NC7WB3125K8X	Bus Switch	85 °C	-40 °C	US8	2	1 x 1:1	2.3 mm	8-VFSOP	0.091 in	Single Supply	Surface Mount	5.5 V	4 V

Catalog

2-Bit Low Power Bus Switch

Key Features

• Space saving US8 surface mount package

• MicroPak™ Pb-Free leadless package

• Typical 3ohm switch resistance at 5.0V VCC

• Minimal propagation delay through the switch

• Power down high impedance input/output

• Zero bounce in flow through mode

• TTL compatible active LOW control inputs

• Control inputs are overvoltage tolerant

• Bus switch replacement for Logic x125 part

Description

The NC7WB3125 is a 2-bit ultra high-speed CMOS FET bus switch with TTL-compatible active LOW control inputs. The low On Resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional ground bounce noise. The device is organized as a 2-bit switch with independent bus enable (OE#) controls. When OE# is LOW, the switch is ON and Port A is connected to Port B. When OE# is HIGH, the switch is OPEN and a high-impedance state exists between the two ports. Control inputs tolerate voltages up to 5.5V independent of VCC.