Overview
The SN74ALS573CDWR is a high-performance integrated circuit from Texas Instruments, part of the Advanced Low-Power Schottky (ALS) family. This device combines the low power consumption of CMOS with the speed and output drive of bipolar transistors. It is an octal D-type transparent latch with 3-state outputs, designed for use in a wide range of applications including temporary storage of data, buffer registers, and working registers.
Key Specifications
| Parameter | Unit | Min | Nom | Max |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | 4.5 | 5 | 5.5 |
| High-Level Input Voltage (VIH) | V | 2 | ||
| Low-Level Input Voltage (VIL) | V | 0.8 | ||
| High-Level Output Current (IOH) | mA | -12 | -15 | |
| Low-Level Output Current (IOL) | mA | 32 | 48 | |
| Pulse Duration, LE High (tw) | ns | 4.5 | 5.5 | |
| Setup Time, Data Before LE↓ (tsu) | ns | 2 | ||
| Hold Time, Data After LE↓ (th) | ns | 3 | ||
| Operating Free-Air Temperature Range (TA) | °C | 0 | 70 | |
| Storage Temperature Range | °C | -65 | 150 |
Key Features
- Octal D-type transparent latches with 3-state outputs, designed for driving highly capacitive or relatively low-impedance loads.
- Buffered output-enable (OE) input to place outputs in either a normal logic state or a high-impedance state.
- Bus-structured pinout and true logic outputs.
- Package options include plastic small-outline (DW) packages, ceramic chip carriers (FK), standard plastic (N) and ceramic (J) 300-mil DIPs, and ceramic flat (W) packages.
- Low power consumption and high-speed data capture and transfer capabilities.
- Operating supply voltage range of 4.5V to 5.5V, compatible with standard 5V digital systems.
Applications
- Temporary storage of data, buffer registers, and working registers.
- Implementing I/O ports, bidirectional bus drivers, and buffer registers.
- Personal computers, data communications equipment, and control systems where efficient data handling is crucial.
Q & A
- What is the SN74ALS573CDWR?
The SN74ALS573CDWR is an octal D-type transparent latch with 3-state outputs from Texas Instruments, part of the Advanced Low-Power Schottky (ALS) family.
- What are the key features of the SN74ALS573CDWR?
Key features include 3-state buffer-type outputs, bus-structured pinout, true logic outputs, and low power consumption. It also has a buffered output-enable input and operates over a supply voltage range of 4.5V to 5.5V.
- What are the operating temperature ranges for the SN74ALS573CDWR?
The device operates from 0°C to 70°C and has a storage temperature range of -65°C to 150°C.
- What types of packages are available for the SN74ALS573CDWR?
Package options include plastic small-outline (DW) packages, ceramic chip carriers (FK), standard plastic (N) and ceramic (J) 300-mil DIPs, and ceramic flat (W) packages.
- What are some common applications for the SN74ALS573CDWR?
Common applications include temporary storage of data, buffer registers, working registers, I/O ports, bidirectional bus drivers, personal computers, data communications equipment, and control systems.
- How does the output-enable (OE) input function?
The output-enable (OE) input can place the outputs in either a normal logic state (high or low) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly.
- What is the significance of the high-impedance state in the SN74ALS573CDWR?
The high-impedance state allows the device to drive bus lines without interface or pullup components, making it versatile for bus-oriented systems.
- How does the latch-enable (LE) input affect the device?
When the latch-enable (LE) input is high, the outputs respond to the data inputs. When LE is low, the outputs are latched to retain the data that was set up.
- What are the setup and hold times for the SN74ALS573CDWR?
The setup time (tsu) is 2 ns, and the hold time (th) is 3 ns.[
- Is the SN74ALS573CDWR suitable for high-speed applications?
Yes, the device is optimized for high-speed data capture and transfer, making it suitable for applications requiring quick setup and hold times.[
- What is the packaging format for automated assembly?
The device is provided in tape and reel packaging, designated by the suffix 'R', which is suitable for automated assembly processes.[
