Overview
The 74HC373D is an octal D-type transparent latch with 3-state outputs, manufactured by Toshiba Semiconductor and Storage. This integrated circuit is part of the 74HC series, known for its high-speed operation and low power dissipation, making it suitable for a wide range of applications. The device features latch enable (LE) and output enable (OE) inputs, allowing for precise control over data latching and output states.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | 2.0 V to 6.0 V |
| Logic Switching Levels | CMOS |
| Output Drive Capability | ± 7.8 mA |
| Propagation Delay (tpd) | 12 ns |
| Power Dissipation | Low |
| Operating Temperature Range | -40 °C to +125 °C |
| Package Type | SO20 (SOT163-1) |
| ESD Protection | HBM > 2000 V, CDM > 1000 V |
Key Features
- Latch Enable and Output Enable Inputs: The device includes a latch enable (LE) and an output enable (OE) input, allowing for the control of data latching and output states.
- 3-State Outputs: The outputs can be set to a high-impedance state, making it suitable for bus-oriented applications.
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Characteristic of CMOS devices.
- ESD Protection: High ESD protection levels (HBM > 2000 V, CDM > 1000 V).
- Multiple Package Options: Available in various packages, including SO20.
Applications
- Industrial Applications: Suitable for industrial control systems and automation.
- Consumer Electronics: Used in various consumer electronic devices requiring data latching and bus control.
- Bus-Oriented Applications: Ideal for applications where multiple devices need to share a common data bus.
Q & A
- What is the 74HC373D used for? The 74HC373D is an octal D-type transparent latch with 3-state outputs, used for data latching and bus control in various electronic systems.
- What is the supply voltage range of the 74HC373D? The supply voltage range is from 2.0 V to 6.0 V.
- What are the key inputs of the 74HC373D? The key inputs are the latch enable (LE) and output enable (OE).
- What is the propagation delay of the 74HC373D? The propagation delay is approximately 12 ns.
- Does the 74HC373D have ESD protection? Yes, it has high ESD protection levels (HBM > 2000 V, CDM > 1000 V).
- What are the typical applications of the 74HC373D? It is used in industrial, consumer electronics, and bus-oriented applications.
- How does the 74HC373D differ from the 74LS373? The 74HC373D operates with CMOS logic levels and has a wider supply voltage range compared to the 74LS373.
- Can the 74HC373D be used for segment selection in digital displays? Yes, it can be used for segment selection in digital displays due to its output drive capability.
- What is the operating temperature range of the 74HC373D? The operating temperature range is from -40 °C to +125 °C.
- What package types are available for the 74HC373D? It is available in SO20 (SOT163-1) package among others.
