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SN74AHCT245N from TI,Texas Instruments

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SN74AHCT245N

Manufacturer: TI

Octal Bus Transceivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74AHCT245N TI 16 In Stock

Description and Introduction

Octal Bus Transceivers With 3-State Outputs The SN74AHCT245N is an octal bus transceiver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver  
- **Technology:** AHCT (Advanced High-Speed CMOS with TTL-Compatible Inputs)  
- **Number of Channels:** 8  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Input Voltage Range (TTL-Compatible):** 0V to 5.5V  
- **Output Voltage Range:** 0V to VCC  
- **Operating Temperature Range:** -40°C to +85°C  
- **Propagation Delay:** 7.5 ns (typical)  
- **Output Drive Capability:** ±24 mA  
- **Package Type:** PDIP-20 (Plastic Dual In-Line Package)  

### **Descriptions:**  
- The SN74AHCT245N is an 8-bit bidirectional transceiver designed for asynchronous communication between data buses.  
- It features non-inverting 3-state outputs and is compatible with TTL logic levels.  
- The direction of data flow is controlled by the DIR (Direction Control) input.  
- The OE (Output Enable) input disables the outputs when high, allowing bus isolation.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by DIR pin.  
- **3-State Outputs:** Allows bus isolation when OE is high.  
- **TTL-Compatible Inputs:** Works with TTL logic levels.  
- **Wide Operating Voltage:** Supports 4.5V to 5.5V operation.  
- **High Drive Capability:** ±24 mA output drive.  
- **Low Power Consumption:** CMOS technology ensures low power dissipation.  
- **ESD Protection:** Exceeds 2000V per JESD 22.  

This device is commonly used in data communication systems, bus interfacing, and level translation applications.

Application Scenarios & Design Considerations

Octal Bus Transceivers With 3-State Outputs

Alternative Part Number

  • MC74VHCT245AN --: Octal bus transceiver with 3-state outputs in the same AHCT/VHCT speed and drive class, pin-compatible DIP-20 package and direct functional drop-in.
  • 74AHCT245N --: Standard 74AHCT245 octal bus transceiver from a different series prefix, same logic function, TTL-compatible inputs and DIP-20 pinout.
  • CD74HCT245E --: HCT-family octal bus transceiver with equivalent 3-state bidirectional function and DIP-20 pinout, suitable when slightly lower speed is acceptable.

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