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SN74AHC245NSR from TEXAS

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SN74AHC245NSR

Manufacturer: TEXAS, TI

Octal Bus Transceivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74AHC245NSR TEXAS, TI 6025 In Stock

Description and Introduction

Octal Bus Transceivers With 3-State Outputs The SN74AHC245NSR is a high-speed CMOS logic octal bus transceiver manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Manufacturer:** Texas Instruments  
- **Category:** Integrated Circuits (ICs)  
- **Family:** AHC/VHC/H/U/V  
- **Series:** 74AHC  
- **Logic Type:** Transceiver, Non-Inverting  
- **Number of Bits:** 8  
- **Voltage Supply:** 2V to 5.5V  
- **Operating Temperature:** -40°C to +85°C  
- **Package / Case:** 20-SOIC (0.209", 5.30mm Width)  
- **Mounting Type:** Surface Mount  
- **Output Type:** 3-State  
- **Propagation Delay:** 7.5ns (max) at 5V  
- **High-Level Output Current:** -8mA  
- **Low-Level Output Current:** 8mA  

### **Descriptions:**  
- The SN74AHC245NSR is an octal bus transceiver designed for asynchronous two-way communication between data buses.  
- It features 3-state outputs for bus-oriented applications.  
- The direction of data flow is controlled by the DIR (Direction Control) input.  
- The Output Enable (OE) input disables both the A and B ports, placing them in a high-impedance state.  

### **Features:**  
- **Wide Operating Voltage Range:** 2V to 5.5V  
- **Balanced Propagation Delays**  
- **Low Power Consumption**  
- **3-State Outputs for Bus Isolation**  
- **ESD Protection Exceeds 2000V per JESD 22**  
- **Latch-Up Performance Exceeds 250mA per JESD 78**  
- **Supports Mixed-Mode Voltage Operation**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Octal Bus Transceivers With 3-State Outputs

Alternative Part Number

  • MC74VHC245DTR2G --: Octal bus transceiver with 3-state outputs in the same VHC/AHC speed family, widely available and pin-compatible in function.
  • 74AHC245PW,118 --: Direct AHC-family octal bus transceiver with 3-state outputs, equivalent logic function and voltage range.
  • SN74LVC245APWR --: Same manufacturer octal bus transceiver with 3-state outputs; LVC family offers comparable or better drive and is a common drop-in functional substitute.
  • 74AHCT245PW,118 --: AHCT variant offers TTL-compatible inputs and the same octal transceiver function; acceptable when input thresholds allow, verify timing margins.

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