资 源 简 介
The RCA CD54/74AC651 and CD54/74AC652 and the CD54/74ACT651 and CD54/74ACT652 3-state, octal-bus transceiver/registers use the RCA ADVANCED CMOS technology. The CD54/74AC651 and CD54/74ACT651 have inverTIng outputs. The CD54/74AC562 and CD54/74ACT652 have non-inverTIng outputs. These devices consist of bus tranceiver circuits, D-type flip-flops, and control circuitry arranged for mulTIplexed transmission of data directly from the data bus or from the internal storage registers. Output Enables OEAB and OEBA are provided to control the transceiver funcTIons. SAB and SBA control pins are provided to select whether real-time or stored data is transferred. The circuitry used for select control will eliminate the typical decoding glitch that occurs in a multiplexer during the transition between stored and real-time data.
