SN74HC573AN IC TTL OCTAL TRANSPARENT D-TYPE LATCHES 3-STATE Features and benefits: - 8-bit paralel input - 8-bit paralel output - Storage register with 3-state outputs - Wide Operating Voltage Range of 2 V to 6 V - Low Power Consumption, 80 A Max Icc - 6-mA Output Drive at 5 V - Low Input Current of 1 A Max - Typical tpd = 21 nS - High-Current 3-State Outputs Drive Bus Lines Directly or Up To 15 LSTTL Loads Data Sheet : http://www.ti.com/lit/ds/symlink/sn54hc573a.pdf