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HD74HCT540 from HITACHI

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HD74HCT540

Manufacturer: HITACHI

Octal Buffers/Line Drivers (with 3-state outputs)

Partnumber Manufacturer Quantity Availability
HD74HCT540 HITACHI 24 In Stock

Description and Introduction

Octal Buffers/Line Drivers (with 3-state outputs) The HD74HCT540 is a high-speed CMOS logic IC manufactured by Hitachi. It is an octal bus transceiver with 3-state outputs, designed for bidirectional communication between data buses. Key specifications include:

- **Technology**: High-Speed CMOS (HCT series)
- **Supply Voltage Range**: 4.5V to 5.5V
- **Input Voltage Levels**: TTL-compatible (0.8V max for LOW, 2.0V min for HIGH)
- **Output Current**: ±6mA (at 4.5V supply)
- **Propagation Delay**: Typically 13ns (at 5V, 25°C)
- **Operating Temperature Range**: -40°C to +85°C
- **Package Options**: 20-pin DIP, SOP, or TSSOP
- **Logic Function**: Inverting buffer with 3-state outputs
- **Pin Configuration**: Two enable pins (active-low OE1 and OE2) for output control

The device is commonly used in bus-oriented systems for data buffering and signal inversion.

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