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SN74ABT16843DLR from TI,Texas Instruments

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SN74ABT16843DLR

Manufacturer: TI

18-Bit Bus-Interface D-Type Latches With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74ABT16843DLR TI 9490 In Stock

Description and Introduction

18-Bit Bus-Interface D-Type Latches With 3-State Outputs The SN74ABT16843DLR is a 20-bit bus-interface flip-flop with 3-state outputs, manufactured by Texas Instruments (TI). Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Logic Type:** D-Type Flip-Flop  
- **Number of Bits:** 20  
- **Output Type:** 3-State  
- **Voltage Supply Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package / Case:** SSOP-56  
- **Mounting Type:** Surface Mount  
- **High-Level Output Current:** -32mA  
- **Low-Level Output Current:** 64mA  
- **Propagation Delay Time:** 4.5ns (Max)  
- **Input Capacitance:** 6pF  
- **Output Capacitance:** 8pF  

### **Descriptions:**  
- Designed for high-speed bus applications.  
- Features 3-state outputs for bus-oriented systems.  
- Buffered clock and output enable inputs for improved signal integrity.  
- Supports partial power-down mode operation.  

### **Features:**  
- **Wide Operating Voltage:** 4.5V to 5.5V  
- **High Drive Outputs (±32mA at 5V)**  
- **Bus Hold on Data Inputs** (Eliminates need for external pull-up/pull-down resistors)  
- **ESD Protection Exceeds 2000V (Per JESD 22-A114)**  
- **Latch-Up Performance Exceeds 500mA (Per JESD 78, Class II)**  
- **Flow-Through Pinout for Easy PCB Layout**  
- **3-State Outputs for Bus Sharing**  

This device is commonly used in data storage, buffering, and bus interfacing applications.

Application Scenarios & Design Considerations

18-Bit Bus-Interface D-Type Latches With 3-State Outputs

Alternative Part Number

  • 74ABT16843DGGR --: Same ABT 18-bit universal bus transceiver function in a TSSOP package, electrically equivalent with different package option.
  • CY74FCT16843ETPVC --: FCT-series 18-bit universal bus transceiver with similar speed and drive characteristics, suitable functional replacement.
  • 74ABT16843CSSC --: ABT-family 18-bit universal bus transceiver from an alternate vendor, pin-compatible logic function for drop-in evaluation.

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