Overview
The SN64BCT25244, produced by Texas Instruments, is a 25-Ω octal buffer and line driver designed to enhance the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented transceivers. This device is part of the BiCMOS family, which significantly reduces power consumption. It features high-impedance state during power-up and power-down, and it is capable of sinking 188-mA IOL, facilitating the switching of 25-Ω transmission lines. The distributed VCC and GND pins help minimize noise generated by simultaneous switching of outputs, ensuring more reliable system operation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | -0.5 | - | 7 | V |
| Input Voltage Range (VI) | -0.5 | - | 7 | V |
| Operating Free-Air Temperature Range | -40 | - | 85 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
| High-Level Input Voltage (VIH) | - | - | 2 | V |
| Low-Level Input Voltage (VIL) | 0.8 | - | - | V |
| High-Level Output Current (IOH) | -80 | - | - | mA |
| Low-Level Output Current (IOL) | 188 | - | - | mA |
| Propagation Delay Time (tPLH, tPHL) | 1 | 3.2-4.9 | 5.6 | ns |
Key Features
- State-of-the-Art BiCMOS Design to reduce ICCZ significantly.
- High-Impedance State During Power Up and Power Down.
- ESD Protection exceeds 2000 V per MIL-STD-883C, Method 3015.
- Designed to facilitate incident-wave switching for line impedances of 25 Ω or greater.
- Distributed VCC and GND pins to minimize noise generated by the simultaneous switching of outputs.
- Package options include Plastic Small-Outline (DW) packages and Standard Plastic 300-mil DIPs (NT).
- Capable of sinking 188-mA IOL to switch 25-Ω transmission lines.
Applications
- 3-state memory address drivers.
- Clock drivers.
- Bus-oriented transceivers.
- High-speed data transmission systems requiring low impedance and high drive capability.
- Systems needing reduced power consumption and high reliability.
Q & A
- What is the primary function of the SN64BCT25244?
The SN64BCT25244 is a 25-Ω octal buffer and line driver designed to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented transceivers.
- What is the operating temperature range of the SN64BCT25244?
The device operates from -40°C to 85°C.
- What is the maximum low-level output current (IOL) of the SN64BCT25244?
The maximum low-level output current (IOL) is 188 mA.
- What type of ESD protection does the SN64BCT25244 offer?
The device offers ESD protection that exceeds 2000 V per MIL-STD-883C, Method 3015.
- What are the package options available for the SN64BCT25244?
The package options include Plastic Small-Outline (DW) packages and Standard Plastic 300-mil DIPs (NT).
- How does the distributed VCC and GND pins benefit the system?
The distributed VCC and GND pins minimize noise generated by the simultaneous switching of outputs, ensuring more reliable system operation.
- What is the typical propagation delay time (tPLH, tPHL) of the SN64BCT25244?
The typical propagation delay time (tPLH, tPHL) is 3.2-4.9 ns.
- What is the high-impedance state behavior during power-up and power-down?
The outputs are in a high-impedance state during power-up and power-down while the supply voltage is less than approximately 3 V.
- Is the SN64BCT25244 RoHS compliant?
Yes, the SN64BCT25244 is RoHS compliant.
- What are some common applications of the SN64BCT25244?
Common applications include 3-state memory address drivers, clock drivers, bus-oriented transceivers, and high-speed data transmission systems.
