Overview
The SN74HC373NS, produced by Texas Instruments, is an octal transparent D-type latch with 3-state outputs. This 8-bit latch is designed to drive highly capacitive or relatively low-impedance loads, making it suitable for various applications such as buffer registers, I/O ports, bidirectional bus drivers, and working registers. The device features a wide operating voltage range and high-current outputs, making it versatile for different system requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 2 V to 6 V |
| Maximum ICC (Power Consumption) | 80 µA |
| Typical tpd (Propagation Delay) | 13 ns |
| Output Drive at 5 V | ±6 mA |
| Maximum Input Current | 1 µA |
| Number of Latches | 8 |
| Package Type | 20-SOIC Surface Mount |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state true outputs can drive up to 15 LSTTL loads
- Low power consumption, 80 µA max ICC
- Typical tpd = 13 ns
- ±6 mA output drive at 5 V
- Low input current of 1 µA max
- Eight high-current latches in a single package
- Full parallel access for loading
Applications
The SN74HC373NS is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. Its high-current 3-state outputs make it ideal for driving highly capacitive or relatively low-impedance loads, which is beneficial in various digital systems and bus architectures.
Q & A
- What is the operating voltage range of the SN74HC373NS?
The operating voltage range is 2 V to 6 V. - How many latches does the SN74HC373NS contain?
The device contains 8 high-current latches. - What is the typical propagation delay of the SN74HC373NS?
The typical propagation delay (tpd) is 13 ns. - What is the maximum power consumption of the SN74HC373NS?
The maximum ICC (power consumption) is 80 µA. - What is the output drive capability at 5 V?
The output drive capability at 5 V is ±6 mA. - What is the maximum input current of the SN74HC373NS?
The maximum input current is 1 µA. - In what package type is the SN74HC373NS available?
The SN74HC373NS is available in a 20-SOIC Surface Mount package. - What is the operating temperature range of the SN74HC373NS?
The operating temperature range is -40°C to 85°C. - What are some common applications of the SN74HC373NS?
Common applications include buffer registers, I/O ports, bidirectional bus drivers, and working registers. - How do the 3-state outputs of the SN74HC373NS function?
The 3-state outputs can be placed in either a normal logic state (high or low) or a high-impedance state, which allows the outputs to neither load nor drive the bus lines significantly.
