Overview
The 74HCT573N/C4112 is an octal transparent D-type latch produced by NXP USA Inc. This integrated circuit is part of the HCT series, known for its high-speed Si-gate CMOS technology and compatibility with low power Schottky TTL (LSTTL) logic. The device is designed to operate as a bus driver, providing 8-bit data storage and 3-state outputs. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs, and when LE is low, the Q outputs are latched at the logic levels of the D inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC Operation Range | 4.5 to 5.5 | V |
| Operating Temperature Range | -55 to 125 | °C |
| Package Types | SOIC (20), SSOP (20), PDIP (20), CDIP (20) | |
| Body Size (SOIC) | 12.80 mm × 7.50 mm | |
| Body Size (SSOP) | 7.20 mm × 5.30 mm | |
| Body Size (PDIP) | 25.40 mm × 6.35 mm | |
| Body Size (CDIP) | 26.92 mm × 6.92 mm | |
| Propagation Delay (D to Q) | 35 to 53 ns | ns |
| Setup Time (Data before LE ↓) | 13 to 20 ns | ns |
| Hold Time (Data after LE ↓) | 10 to 15 ns | ns |
| Power Dissipation Capacitance | 53 pF | pF |
Key Features
- Octal transparent D-type latches with 3-state outputs.
- High-speed Si-gate CMOS technology.
- Operates within a voltage range of 4.5 to 5.5 V.
- Wide operating temperature range of -55°C to 125°C.
- Balanced propagation delays and transition times.
- Standard outputs drive up to 10 LS-TTL loads.
- Significant power reduction compared to LS-TTL logic ICs.
- Inputs are TTL-voltage compatible.
Applications
The 74HCT573N/C4112 is suitable for various applications requiring data storage and bus driving capabilities. These include:
- Microprocessor and microcontroller systems where data needs to be latched and stored.
- Memory interfaces and data buffers.
- Industrial control systems requiring reliable data storage and transmission.
- Automotive and aerospace applications due to its wide operating temperature range.
Q & A
- What is the primary function of the 74HCT573N/C4112?
The primary function is to act as an octal transparent D-type latch with 3-state outputs, allowing it to store and transmit 8-bit data.
- What is the operating voltage range of the 74HCT573N/C4112?
The operating voltage range is 4.5 to 5.5 V.
- What are the package types available for the 74HCT573N/C4112?
The available package types include SOIC (20), SSOP (20), PDIP (20), and CDIP (20).
- What is the maximum operating temperature of the 74HCT573N/C4112?
The maximum operating temperature is 125°C.
- How many LS-TTL loads can the standard outputs drive?
The standard outputs can drive up to 10 LS-TTL loads.
- What is the typical power dissipation capacitance of the 74HCT573N/C4112?
The typical power dissipation capacitance is 53 pF.
- What is the setup time for data before the LE input goes low?
The setup time ranges from 13 to 20 ns.
- What is the hold time for data after the LE input goes low?
The hold time ranges from 10 to 15 ns.
- Is the 74HCT573N/C4112 RoHS compliant?
Yes, the 74HCT573N/C4112 is RoHS compliant.
- What are some common applications of the 74HCT573N/C4112?
Common applications include microprocessor and microcontroller systems, memory interfaces, data buffers, and industrial control systems.
