Overview
The SN75454BPE4 is a dual-peripheral driver produced by Texas Instruments, designed for use in systems that employ TTL (Transistor-Transistor Logic) logic. This device is part of the SN7545xB family, which is functionally interchangeable with and replaces the earlier SN75450 and SN75450A families. The SN75454BPE4 is specifically a NOR driver, with the output of the logic gate internally connected to the bases of the npn output transistors. It is characterized for operation over a temperature range of 0°C to 70°C, ensuring high-speed performance and freedom from latch-up. Diode-clamped inputs simplify circuit design, making it a versatile component for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.75 | 5 | 5.25 | V |
| High-Level Input Voltage (VIH) | 2 | V | ||
| Low-Level Input Voltage (VIL) | 0.8 | V | ||
| Continuous Collector or Output Current (IOK) | 400 | mA | ||
| Peak Collector or Output Current (II) | 500 | mA (tw ≤10 ms, duty cycle ≤50%) | ||
| Operating Free-Air Temperature (TA) | 0 | 70 | °C | |
| Propagation Delay Time, Low-to-High-Level Output (tPLH) | 27 | 35 | ns | |
| Propagation Delay Time, High-to-Low-Level Output (tPHL) | 24 | 35 | ns | |
| Transition Time, Low-to-High-Level Output (tTLH) | 5 | 8 | ns | |
| Transition Time, High-to-Low-Level Output (tTHL) | 7 | 12 | ns | |
| High-Level Output Voltage After Switching (VOH) | VS – 6.5 | mV (VS = 20 V, IO ≈ 300 mA) |
Key Features
- Dual-peripheral NOR driver with internally connected logic gates and npn output transistors.
- Designed for use in TTL logic systems.
- Functionally interchangeable with and replaces the SN75450 and SN75450A families.
- High-speed performance with propagation delay times of 24-35 ns.
- Freedom from latch-up due to diode-clamped inputs.
- Continuous collector or output current of up to 400 mA and peak current of up to 500 mA.
- Operating temperature range of 0°C to 70°C.
- Available in PDIP (8-pin), SOIC (8-pin), and SO (8-pin) packages.
Applications
- High-speed logic buffers.
- Power drivers.
- Lamp drivers.
- LED drivers.
- Line drivers.
- Memory drivers.
- Relay drivers.
- MOS drivers.
Q & A
- What is the SN75454BPE4 used for?
The SN75454BPE4 is a dual-peripheral NOR driver used in systems that employ TTL logic, suitable for applications such as high-speed logic buffers, power drivers, and lamp drivers.
- What is the operating temperature range of the SN75454BPE4?
The operating temperature range of the SN75454BPE4 is from 0°C to 70°C.
- What are the typical propagation delay times for the SN75454BPE4?
The propagation delay times for the SN75454BPE4 are typically 27-35 ns for low-to-high-level output and 24-35 ns for high-to-low-level output.
- What is the maximum continuous collector or output current for the SN75454BPE4?
The maximum continuous collector or output current for the SN75454BPE4 is 400 mA.
- What are the available packages for the SN75454BPE4?
The SN75454BPE4 is available in PDIP (8-pin), SOIC (8-pin), and SO (8-pin) packages.
- Is the SN75454BPE4 RoHS compliant?
Yes, the SN75454BPE4 is RoHS compliant.
- What is the high-level output voltage after switching for the SN75454BPE4?
The high-level output voltage after switching for the SN75454BPE4 is VS – 6.5 mV (VS = 20 V, IO ≈ 300 mA).
- Does the SN75454BPE4 have diode-clamped inputs?
Yes, the SN75454BPE4 has diode-clamped inputs to simplify circuit design and prevent latch-up.
- What is the peak collector or output current for the SN75454BPE4?
The peak collector or output current for the SN75454BPE4 is 500 mA (tw ≤10 ms, duty cycle ≤50%).
- Can the SN75454BPE4 be used in high-speed applications?
Yes, the SN75454BPE4 is designed for high-speed applications with fast propagation delay times.
