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TC74HCT245AP from TOSHIBA

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TC74HCT245AP

Manufacturer: TOSHIBA, TOS

OCTAL BUS TRANSCEIVER (3-STATE)

Partnumber Manufacturer Quantity Availability
TC74HCT245AP TOSHIBA, TOS 3321 In Stock

Description and Introduction

OCTAL BUS TRANSCEIVER (3-STATE) The **TC74HCT245AP** is a high-speed CMOS logic octal bus transceiver manufactured by **TOSHIBA**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Logic Family:** HCT (High-Speed CMOS, TTL compatible)  
- **Number of Channels:** 8 (Octal)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **High-Level Input Voltage (VIH):** 2.0V (min)  
- **Low-Level Input Voltage (VIL):** 0.8V (max)  
- **High-Level Output Voltage (VOH):** 4.4V (min at IOH = -6mA)  
- **Low-Level Output Voltage (VOL):** 0.1V (max at IOL = 6mA)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** DIP-20 (Plastic Dual In-Line Package)  
- **Propagation Delay:** 13ns (max) at 4.5V  

### **Descriptions:**  
- The **TC74HCT245AP** is an **8-bit bidirectional transceiver** with 3-state outputs.  
- It is designed for **asynchronous two-way communication** between data buses.  
- The direction of data flow is controlled by the **DIR (Direction Control)** input.  
- The **Output Enable (OE)** pin enables/disables the outputs (active low).  

### **Features:**  
- **TTL-Compatible Inputs** (can interface directly with TTL levels)  
- **Bidirectional Data Flow** (controlled by DIR pin)  
- **3-State Outputs** (for bus-oriented applications)  
- **Low Power Consumption** (typical ICC = 4µA at 5V)  
- **High Noise Immunity** (CMOS technology)  
- **Wide Operating Voltage Range** (4.5V to 5.5V)  

This device is commonly used in **bus interface, data buffering, and level-shifting applications**.

Application Scenarios & Design Considerations

OCTAL BUS TRANSCEIVER (3-STATE)

Alternative Part Number

  • SN74HCT245N --: Pin-compatible HCT octal bus transceiver in DIP-20 with equivalent logic function and drive characteristics.
  • MC74HCT245AN --: Direct functional equivalent HCT245 in DIP-20 package, same pinout and voltage compatibility.
  • CD74HCT245E --: HCT-series octal bus transceiver in DIP-20, interchangeable in most designs with similar speed and drive.

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