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SN74HC640NSR from TI,Texas Instruments

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SN74HC640NSR

Manufacturer: TI

Octal Bus Transceivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74HC640NSR TI 11 In Stock

Description and Introduction

Octal Bus Transceivers With 3-State Outputs The SN74HC640NSR is a high-speed CMOS (complementary metal-oxide semiconductor) octal bus transceiver with 3-state outputs, manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver  
- **Number of Bits:** 8  
- **Voltage Supply Range:** 2V to 6V  
- **High-Level Input Voltage (Min):** 2V  
- **Low-Level Input Voltage (Max):** 0.8V  
- **Output Current (High/Low):** ±7.8mA  
- **Propagation Delay (Max):** 18ns at 4.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOIC (20-pin)  
- **Mounting Type:** Surface Mount  

### **Descriptions:**  
- The SN74HC640NSR is designed for asynchronous communication between data buses.  
- It features non-inverting outputs and bidirectional data flow controlled by the direction (DIR) input.  
- The output enable (OE) input disables both outputs when high, allowing isolation from the bus.  

### **Features:**  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **Bidirectional Data Flow:** Controlled by a single direction pin (DIR).  
- **Wide Operating Voltage:** Supports 2V to 6V operation.  
- **Balanced Propagation Delays:** Ensures consistent signal timing.  
- **Low Power Consumption:** Typical ICC of 4µA (max).  
- **ESD Protection:** Exceeds 2000V per JESD 22.  

This device is commonly used in data communication systems, bus interfacing, and signal buffering applications.

Application Scenarios & Design Considerations

Octal Bus Transceivers With 3-State Outputs

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