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TC74HC245AFW from TOSHIBA

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TC74HC245AFW

Manufacturer: TOSHIBA, TOS

OCTAL BUS TRANSCEIVER

Partnumber Manufacturer Quantity Availability
TC74HC245AFW TOSHIBA, TOS 975 In Stock

Description and Introduction

OCTAL BUS TRANSCEIVER The **TC74HC245AFW** is a high-speed CMOS octal bus transceiver manufactured by **TOSHIBA**. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Logic Family:** HC (High-Speed CMOS)  
- **Supply Voltage Range:** 2V to 6V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input/Output Compatibility:** TTL levels  
- **High-Level Input Voltage (Min):** 2V (at VCC = 2V), 3.15V (at VCC = 4.5V)  
- **Low-Level Input Voltage (Max):** 0.8V (at VCC = 2V), 1.35V (at VCC = 4.5V)  
- **High-Level Output Current (Max):** -5.2mA (at VCC = 4.5V)  
- **Low-Level Output Current (Max):** 5.2mA (at VCC = 4.5V)  
- **Propagation Delay (Max):** 18ns (at VCC = 4.5V)  
- **Package Type:** SOP-20 (Small Outline Package, 20-pin)  

### **Descriptions:**  
- The **TC74HC245AFW** is an **8-bit bidirectional transceiver** with 3-state outputs.  
- It is designed for **asynchronous communication** between data buses.  
- The direction of data flow is controlled by the **DIR (Direction Control)** input.  
- The **OE (Output Enable)** pin enables/disables the outputs.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by the DIR pin.  
- **3-State Outputs:** Allows bus-oriented applications.  
- **High-Speed Operation:** Optimized for fast signal transmission.  
- **Low Power Consumption:** CMOS technology ensures low power dissipation.  
- **Wide Operating Voltage Range:** Supports 2V to 6V operation.  
- **TTL-Compatible Inputs:** Ensures compatibility with TTL logic levels.  

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

Application Scenarios & Design Considerations

OCTAL BUS TRANSCEIVER

Alternative Part Number

  • SN74HC245DW --: Widely available octal bus transceiver in the same HC logic family with equivalent function and SOIC-20 wide-body package, pin-compatible replacement.
  • MC74HC245ADWG --: Direct functional equivalent octal bus transceiver in SOIC-20W package, same HC CMOS technology and pinout, good second-source option.
  • 74HC245D --: Standard HC-series octal bus transceiver in SOIC-20 package with matching pinout and electrical characteristics, suitable drop-in alternative.
  • SN74HC245DWR --: Widely available octal bus transceiver in the same HC logic family with equivalent 3-state bidirectional function, SOIC-20 wide-body package, and direct pin compatibility.
  • MC74HC245ADWR2G --: HC-series octal bus transceiver with matching Vcc range and drive current, offered in a similar wide SOIC-20 package as a drop-in functional replacement.

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