AiP74HC/HCT573 8-bit D-type latch with three-state control
Time:2023-12-15
Views:1218
AiP74HC/HCT573 is an 8-bit D-type latch with a three-state output. This device has latch enable (LE) and output enable (OE).
When LE is at high level, the input data enters the latch. In this case, the latch is transparent, and every time its corresponding D input changes, the latch output changes.
When LE is at low level, the latch stores the input information of the previous establishment time of the falling edge of LE. The high level on OE causes the output to exhibit a high resistance state. The operation of OE input will not affect the status of the latch. Input built-in clamping diode. In this way, a current limiting resistor can be used to connect the input interface to a voltage exceeding Vcc.
AiP74HC573 Function Diagram. png
The main characteristics of AiP74HC/HCT573 are as follows:
1. Input level:
AiP74HC573: CMOS level
AiP74HCT573: TTL level
2. The input and output are located on the opposite side of the package, making it easy to connect with the microprocessor.
3. Can be used as input and output ports for microprocessors and microprocessor computers
4. Three state in-phase output for bus applications; Common Tri State Enable Input
5. Working environment temperature range: -40 ℃~± 105 ℃
6. Packaging form: DIP20/SOP20/TSSOP20
When LE is at high level, the input data enters the latch. In this case, the latch is transparent, and every time its corresponding D input changes, the latch output changes.
When LE is at low level, the latch stores the input information of the previous establishment time of the falling edge of LE. The high level on OE causes the output to exhibit a high resistance state. The operation of OE input will not affect the status of the latch. Input built-in clamping diode. In this way, a current limiting resistor can be used to connect the input interface to a voltage exceeding Vcc.
AiP74HC573 Function Diagram. png
The main characteristics of AiP74HC/HCT573 are as follows:
1. Input level:
AiP74HC573: CMOS level
AiP74HCT573: TTL level
2. The input and output are located on the opposite side of the package, making it easy to connect with the microprocessor.
3. Can be used as input and output ports for microprocessors and microprocessor computers
4. Three state in-phase output for bus applications; Common Tri State Enable Input
5. Working environment temperature range: -40 ℃~± 105 ℃
6. Packaging form: DIP20/SOP20/TSSOP20
mail