Overview
The SN74ACT244DWR is an octal buffer and line driver produced by Texas Instruments. This integrated circuit is designed to enhance the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device operates within a voltage range of 4.5V to 5.5V and features TTL-compatible CMOS inputs and three-state outputs. It is packaged in a 20-pin SOIC (DW) package, making it suitable for surface mount applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Integrated Circuits (ICs) - Logic - Buffers, Drivers, Receivers, Transceivers |
| Package | 20-SOIC (0.295", 7.50mm Width) |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | Push-Pull |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 4.5 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Maximum tpd at 5V | 9.5ns |
Key Features
- Operates within a voltage range of 4.5V to 5.5V
- Inputs accept voltages up to 5.5V
- TTL-compatible CMOS inputs
- Three-state outputs
- Maximum propagation delay (tpd) of 9.5ns at 5V
- Organized as two 4-bit buffers and drivers with separate output-enable (OE) inputs
- Outputs are in the high-impedance state when OE is high
Applications
The SN74ACT244DWR is designed for various applications, including:
- 3-state memory address drivers
- Clock drivers
- Bus-oriented receivers and transmitters
- General-purpose buffering and driving in digital systems
Q & A
- What is the voltage range for the SN74ACT244DWR?
The SN74ACT244DWR operates within a voltage range of 4.5V to 5.5V.
- What type of inputs does the SN74ACT244DWR have?
The device has TTL-compatible CMOS inputs.
- What is the maximum propagation delay at 5V for the SN74ACT244DWR?
The maximum propagation delay (tpd) at 5V is 9.5ns.
- How are the outputs controlled in the SN74ACT244DWR?
The outputs are controlled by separate output-enable (OE) inputs. When OE is low, the device passes non-inverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
- What is the package type for the SN74ACT244DWR?
The device is packaged in a 20-pin SOIC (DW) package.
- What is the operating temperature range for the SN74ACT244DWR?
The operating temperature range is -40°C to 85°C.
- What are the typical applications for the SN74ACT244DWR?
Typical applications include 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
- Is the SN74ACT244DWR RoHS compliant?
Yes, the SN74ACT244DWR is RoHS compliant.
- How many bits per element does the SN74ACT244DWR have?
The device has 4 bits per element, organized as two 4-bit buffers and drivers.
- What is the output current capability of the SN74ACT244DWR?
The output current capability is 24mA for both high and low outputs.
