DS3647A - Quad Tri-state MOS Memory I/o Register

The DS3647A is a 4-bit I O buffer register intended for use in MOS memory systems This circuit employs a fall-through latch for data storage This method of latching captures the data in parallel with the output thus eliminating the delays encountered in other designs This circuit uses Schottkyclampe

• TRI-STATE outputs The ‘‘B’’ port outputs are designed for use in bus organized data transmission systems and can sink 80 mA and source b5 2 mA Data going from port ‘‘A’’ to port ‘‘B’’ and from ‘‘B’’ to port ‘‘A’’ is inverted in the DS3647A Features Y Y Y Y Y Y Y Y PNP inputs minimize loading Fall-through latch design Propagation delay of only 15 ns TRI-STATE outputs.