General Description

The LCX112 is a dual J-K flip-flop. Each flip-flop has inde pendent J, K, PRESET, CLEAR, and CLOCK inputs with Q, Q outputs. These devices are edge sensitive and change state on the negative going transition of the clock pulse. Clear and preset are independent of the clock and accomplished by a low logic level on the corresponding input. LCX devices are designed for low voltage (3.3V or 2.5) operation with the added capability of interfacing to a 5V signal environment.

The 74LCX112 is fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.

Features

■ 5V tolerant inputs

■ 2.3V–3.6V VCC specifications provided

■ 7.5 ns tPD max (VCC = 3.3V), 10 µA ICC max

■ Power down high impedance inputs and outputs

■ ±24 mA output drive (VCC = 3.0V)

■ Implements patented noise/EMI reduction circuitry

■ Latch-up performance exceeds 500 mA

■ ESD performance:

   Human body model > 2000V

   Machine model > 2000V