Overview
The MC74AC573DTR2G, produced by onsemi, is a high-speed octal buffer/line driver with 3-state outputs. This component is part of the MC74AC573/74ACT573 series and is functionally identical to the MC74AC373/74ACT373 but with inputs and outputs on opposite sides of the package. This design facilitates easy interface with microprocessors, making it useful as either an input or output port.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC (DC Supply Voltage) | −0.5 to +7.0 | V | Referenced to GND |
| VIN (DC Input Voltage) | −0.5 to VCC + 0.5 | V | Referenced to GND |
| VOUT (DC Output Voltage) | −0.5 to VCC + 0.5 | V | Referenced to GND |
| VIH (Minimum High Level Input Voltage) | 2.1 (at VCC = 3.0V), 3.15 (at VCC = 4.5V), 3.85 (at VCC = 5.5V) | V | VOUT = 0.1V or VCC - 0.1V |
| VIL (Maximum Low Level Input Voltage) | 0.9 (at VCC = 3.0V), 1.35 (at VCC = 4.5V), 1.65 (at VCC = 5.5V) | V | VOUT = 0.1V or VCC - 0.1V |
| VOH (Minimum High Level Output Voltage) | 2.9 (at VCC = 3.0V), 4.4 (at VCC = 4.5V), 5.4 (at VCC = 5.5V) | V | IOUT = −50 μA |
| VOL (Maximum Low Level Output Voltage) | 0.1 (at VCC = 3.0V, 4.5V, 5.5V) | V | IOUT = 50 μA |
| IOH (Output Current - High) | −24 mA | mA | |
| IOL (Output Current - Low) | 24 mA | mA | |
| tPLH (Propagation Delay Dn to On) | 2.5 - 12 ns (at VCC = 5.0V) | ns | CL = 50 pF |
| tPHL (Propagation Delay Dn to On) | 2.5 - 12 ns (at VCC = 5.0V) | ns | CL = 50 pF |
| ts (Setup Time, HIGH or LOW Dn to LE) | 3.0 - 4.0 ns (at VCC = 5.0V) | ns | |
| th (Hold Time, HIGH or LOW Dn to LE) | 0 - 2.0 ns (at VCC = 5.0V) | ns | |
| tw (LE Pulse Width, HIGH) | 3.5 - 4.0 ns (at VCC = 5.0V) | ns |
Key Features
- Inputs and outputs on opposite sides of the package, allowing easy interface with microprocessors.
- Useful as input or output port for microprocessors.
- Functionally identical to MC74AC373/74ACT373.
- 3-state outputs for bus interfacing.
- Outputs source/sink 24 mA.
- The ′ACT573 has TTL compatible inputs.
- Pb-free devices.
Applications
- Microprocessor input/output ports.
- Bus interfacing and data transmission systems.
- High-speed digital logic circuits.
- Buffering and driving signals in digital systems.
Q & A
- What is the MC74AC573DTR2G used for?
The MC74AC573DTR2G is used as an octal buffer/line driver with 3-state outputs, often in microprocessor input/output ports and bus interfacing applications.
- What are the key differences between MC74AC573 and MC74AC373?
The MC74AC573 has inputs and outputs on opposite sides of the package, unlike the MC74AC373, which facilitates easier interface with microprocessors.
- What is the maximum output current of the MC74AC573DTR2G?
The maximum output current is 24 mA for both high and low output states.
- What is the propagation delay of the MC74AC573DTR2G?
The propagation delay (tPLH and tPHL) ranges from 2.5 to 12 ns at VCC = 5.0V and CL = 50 pF.
- What are the operating voltage ranges for the MC74AC573DTR2G?
The operating voltage ranges from 3.0V to 5.5V.
- Is the MC74AC573DTR2G Pb-free?
- What is the setup time for the LE input?
The setup time (ts) for the LE input is 3.0 to 4.0 ns at VCC = 5.0V.
- What is the hold time for the LE input?
The hold time (th) for the LE input is 0 to 2.0 ns at VCC = 5.0V.
- What is the pulse width requirement for the LE input?
The pulse width (tw) for the LE input is 3.5 to 4.0 ns at VCC = 5.0V.
- What package types are available for the MC74AC573DTR2G?
The MC74AC573DTR2G is available in TSSOP-20 (Pb-free) packages.
