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SN74ALVCH245NSR from TI,Texas Instruments

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SN74ALVCH245NSR

Manufacturer: TI

Octal Bus Transceiver With 3-State Outputs
Partnumber Manufacturer Quantity Availability
SN74ALVCH245NSR TI 2000 In Stock

Description and Introduction

Octal Bus Transceiver With 3-State Outputs **Manufacturer:** Texas Instruments (TI)  

**Part Number:** SN74ALVCH245NSR  

### **Specifications:**  
- **Technology Family:** ALVCH  
- **Supply Voltage Range:** 1.65V to 3.6V  
- **Operating Temperature Range:** -40°C to 85°C  
- **Number of Channels:** 8  
- **Logic Type:** Octal Bus Transceiver  
- **Input/Output Type:** 3-State  
- **Propagation Delay Time:** 2.6ns (max) at 3.3V  
- **Output Drive Capability:** ±24mA at 3V  
- **Package Type:** SOIC (NSR)  
- **Pin Count:** 20  

### **Descriptions:**  
The SN74ALVCH245NSR is an octal bus transceiver designed for 1.65V to 3.6V VCC operation. It features non-inverting 3-state outputs and bidirectional data flow controlled by the direction (DIR) input. The output-enable (OE) input disables the outputs when high.  

### **Features:**  
- Supports mixed-mode signal operation (5V input and output voltages with 3.3V VCC)  
- Bus-hold on data inputs eliminates the need for external pull-up/pull-down resistors  
- Latch-up performance exceeds 250mA per JESD 17  
- ESD protection exceeds 2000V per JESD 22  
- Available in small-outline (SOIC) package for space-constrained applications  

(End of factual information.)

Application Scenarios & Design Considerations

Octal Bus Transceiver With 3-State Outputs

Alternative Part Number

  • 74ALVCH245PW --: Same ALVCH245 octal bus transceiver function with equivalent 3.3V ALVC logic family, different series prefix and TSSOP package, widely available as a drop-in functional replacement.
  • 74ALVC245PW --: ALVC245 octal bus transceiver with similar 3.3V low-voltage CMOS characteristics; slightly different drive/speed grade but pin-compatible in TSSOP and a common second source.
  • SN74LVC245APW --: TI LVC245A octal bus transceiver in TSSOP offers comparable 3.3V operation and pinout; different logic family prefix but a practical same-vendor alternative when ALVCH is unavailable.

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