74ABTH16374B

The 74ABTH16374B high-performance BiCMOS device combines  low static and dynamic power dissipation with high speed and  high  output drive.

The 74ABTH16374B has two 8-bit, edge triggered registers, with each  register coupled to eight 3-State output buffers. The two sections of  each register are controlled independently by the clock (nCP) and  Output Enable (nOE) control gates.

Each register is fully edge triggered. The state of each D input, one  set-up time before the Low-to-High clock transition, is transferred to  the corresponding flip-flop's Q output.

The 3-State output buffers of the 74ABTH16374B are designed to drive heavily loaded  3-State buses, MOS memories, or MOS microprocessors. Each   active-Low Output Enable (nOE) controls all eight 3-State buffers for   its register independent of the clock operation.

When nOE is Low, the stored data appears at the outputs for that   register.  When nOE is High,  the outputs for that register are in the   High-impedance "OFF" state, which means they will neither drive   nor load the bus.

Two options are available, 74ABTH16374B which does not have the   bus-hold feature and 74ABTH16374B which incorporates the   bus-hold feature.