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SN74HCT373DWR from TEXAS

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SN74HCT373DWR

Manufacturer: TEXAS

Octal Transparent D-Type Latches With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74HCT373DWR TEXAS 255 In Stock

Description and Introduction

Octal Transparent D-Type Latches With 3-State Outputs The SN74HCT373DWR is a high-speed octal transparent latch manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Logic Type:** Octal Transparent Latch  
- **Technology:** HCT (High-Speed CMOS, TTL-Compatible)  
- **Number of Bits:** 8  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **High-Level Input Voltage (Min):** 2V  
- **Low-Level Input Voltage (Max):** 0.8V  
- **Output Current (High/Low):** ±6mA  
- **Propagation Delay (Max):** 24ns at 5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC (DWR), 20-pin  

### **Descriptions:**  
- The SN74HCT373DWR is an octal D-type transparent latch with 3-state outputs.  
- It is designed for bus-organized systems and provides asynchronous latching of data.  
- The outputs remain in a high-impedance state when the output enable (OE) input is high.  
- Compatible with TTL logic levels, making it suitable for mixed-voltage systems.  

### **Features:**  
- **3-State Outputs:** Allows direct connection to a bus line.  
- **Buffered Control Inputs:** Reduces loading effects.  
- **Latch-Up Performance:** Exceeds 250mA per JESD 17.  
- **ESD Protection:** HBM > 2000V, CDM > 1000V.  
- **Wide Operating Voltage Range:** 4.5V to 5.5V.  
- **Low Power Consumption:** Typical ICC of 80µA.  

This latch is commonly used in memory address latching, data buffering, and I/O port applications.

Application Scenarios & Design Considerations

Octal Transparent D-Type Latches With 3-State Outputs

Alternative Part Number

  • MC74HCT373ADWR2G --: Octal D-type transparent latch with 3-state outputs, HCT logic family, SOIC-20 wide body, direct functional and pin-compatible replacement.
  • 74HCT373D --: Same HCT373 octal latch function in SOIC-20 package, widely available second-source with equivalent logic thresholds and drive.
  • CD74HCT373M --: Same manufacturer HCT373 octal latch in SOIC-20, identical function and pinout, though package width differs slightly from the DW suffix.

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