The 74HC573 high-speed octal D-type latches utilize advanced silicon-gate P-well CMOS technology. They possess the high noise immunity and low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LS-TTL loads. Due to the large output drive capability and the 3-STATE feature, these devices are ideally suited for interfacing with bus lines in a bus-organized system.
When the LATCH ENABLE(LE) input is HIGH, the Q outputs will follow the D inputs. When the LATCH ENABLE goes LOW, data at the D inputs will be retained at the outputs until the LATCH ENABLE returns HIGH again. When a HIGH logic level is applied to the OUTPUT CONTROL OC input, all outputs go to a HIGH impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. The 74HC logic family is speed, function, and pinout compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.
Features
- Output drive capability: 15 LS-TTL loads
- Compatible with bus-oriented systems
-  Low quiescent current: 80 µA maximum
-  Low input current: 1 µA maximum
- Wide operating voltage range: 2 to 6 volts
- Â Typical propagation delay: 18 ns
Note:
- Product Images are shown for illustrative purposes only and may differ from the actual product.
- For Technical Specifications about the IC go through the Datasheet in the Attachment section.
Package Includes:
1 x 74HC573 Octal D-Type Transparent Latch IC (74573 IC) DIP-20 Package
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