DM74LS573 Octal D-Type Latch with 3-STATE Outputs .
74LS573 - Octal D-Type Latch
T74LS573 - (T74LS573 / T74LS574) LOW POWER SCHOTTKY INTERGRADE CIRCUITS
T74LS574 - (T74LS573 / T74LS574) LOW POWER SCHOTTKY INTERGRADE CIRCUITS