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SN74HCT245DW from TI,Texas Instruments

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SN74HCT245DW

Manufacturer: TI, TEXAS

Octal Bus Transceivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74HCT245DW TI, TEXAS 2167 In Stock

Description and Introduction

Octal Bus Transceivers With 3-State Outputs The SN74HCT245DW is a high-speed CMOS logic octal bus transceiver manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver  
- **Technology:** CMOS  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage (VI):** 0V to VCC  
- **Output Voltage (VO):** 0V to VCC  
- **Propagation Delay:** 13 ns (typical)  
- **Output Drive Capability:** ±6 mA at 5V  
- **Package Type:** SOIC (DW) – 20-pin  
- **High-Level Input Voltage (VIH):** 2V (min)  
- **Low-Level Input Voltage (VIL):** 0.8V (max)  

### **Description:**  
The SN74HCT245DW is an octal bus transceiver designed for asynchronous communication between data buses. It features non-inverting 3-state outputs and is compatible with TTL levels. The direction of data flow is controlled by the DIR (Direction Control) input, while the OE (Output Enable) input disables the outputs when high.  

### **Features:**  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **Wide Operating Voltage:** 4.5V to 5.5V.  
- **TTL-Compatible Inputs:** Works with TTL logic levels.  
- **High Noise Immunity:** Typical CMOS noise margin.  
- **Balanced Propagation Delays:** Ensures reliable signal timing.  
- **Low Power Consumption:** Typical ICC of 4 µA (static).  
- **ESD Protection:** Exceeds 2000V per JESD 22.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Octal Bus Transceivers With 3-State Outputs

Alternative Part Number

  • MC74HCT245ADWG --: Pin-compatible octal bus transceiver in the same HCT logic family with equivalent 3-state outputs, available in SOIC-20 wide-body package.
  • 74HCT245D,653 --: Direct functional equivalent octal bus transceiver with 3-state outputs in SOIC-20, widely stocked and drop-in compatible.
  • CD74HCT245M --: Same-vendor HCT-family octal bus transceiver in SOIC-20 with identical pinout and logic function, useful when staying within TI's portfolio is preferred.
  • 74HCT245D --: Standard 74HCT245 octal bus transceiver in SO20 package, same pinout and electrical characteristics.

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