DM74ALS573BN

The DM74ALS573BN is an octal Transparent D Latch with 3-state outputs. This extended temperature latch designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. It is particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers and working registers. While the enable (G) is high the Q outputs will follow the data (D) inputs. When the enable is taken low the output will be latched at the level of the data that was set UP. A buffered output control input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state the outputs neither load nor drive the bus lines significantly.

• Switching specifications guaranteed over full temperature and VCC range
• Advanced oxide-isolated, ion-implanted Schottky TTL process
• Functionally equivalent with DM74LS373
• Improved AC performance over DM74LS373 at approximately half the power
• 3-state Buffer-type outputs drive bus lines directly
• Switching specifications at 50pF