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SN54HCT373J from TI,Texas Instruments

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SN54HCT373J

Manufacturer: TI

Octal D-type Transparent Latches With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN54HCT373J TI 1500 In Stock

Description and Introduction

Octal D-type Transparent Latches With 3-State Outputs The SN54HCT373J is a high-speed octal transparent latch manufactured by Texas Instruments (TI). Below are its key 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  
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)  
- **Output Current:** ±6mA  
- **Propagation Delay:** 14ns (typical)  
- **Input Capacitance:** 3pF (typical)  
- **Package Type:** Ceramic DIP (20-pin)  

### **Descriptions:**  
- The SN54HCT373J is a high-speed, low-power octal transparent latch designed for bus-oriented applications.  
- It features 3-state outputs for bus driving capability and bidirectional data flow.  
- The latch is transparent when the Latch Enable (LE) input is high, allowing data to pass through. When LE is low, data is latched.  
- The Output Enable (OE) input controls the 3-state outputs, allowing multiple devices to share a common bus.  

### **Features:**  
- **TTL-Compatible Inputs:** Works with both CMOS and TTL logic levels.  
- **3-State Outputs:** Supports bus sharing and reduces system loading.  
- **High Noise Immunity:** Typical CMOS noise margin of 1V at 5V.  
- **Low Power Consumption:** 80µA (max) ICC under static conditions.  
- **Wide Operating Temperature Range:** Suitable for military and harsh environments.  
- **Latch-Up Performance:** Exceeds 250mA per JESD 17.  

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

Application Scenarios & Design Considerations

Octal D-type Transparent Latches With 3-State Outputs

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