SN74HCT573N

Latch Transparent 3-ST 8-CH D-Type 20-Pin PDIP Tube
OCTAL D-TYPE LATCH, 74HCT573; Logic IC Function:Octal Transparent D-Type Latch (3-State); Logic IC Family:HCT; Logic IC Base Number:74573; Voltage, Supply Min:4.5V; Voltage, Supply Max:5.5V; Case Style:DIP; Operating Temperature Range:-40°C to 85°C; Base Number:74; IC Generic Number:74HCT573; Logic Function Number:573; No. of Pins:20; Supply Voltage:5.5V; Temp, Op. Max:85°C; Temp, Op. Min:-40°C; Termination Type:Through Hole
These octal transparent D-type latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The ’HCT573 devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. While the latch-enable (LE) input is high, the Q outputs respond to the data (D) inputs. When LE is low, the outputs are latched to retain the data that was set up at the D inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.