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SN74ABT821A from TI,Texas Instruments

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SN74ABT821A

Manufacturer: TI

10-Bit Bus Interface Flip-Flops With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74ABT821A TI 245 In Stock

Description and Introduction

10-Bit Bus Interface Flip-Flops With 3-State Outputs The SN74ABT821A is a 10-bit D-type flip-flop manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Technology:** ABT (Advanced BiCMOS Technology)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to 85°C  
- **Input/Output Compatibility:** TTL levels  
- **Propagation Delay (tpd):** 4.5 ns (max)  
- **Output Drive Capability:** ±24 mA  
- **Package Options:** 24-pin SSOP (DB), SOIC (DW), and CDIP (J)  

### **Descriptions:**  
- The SN74ABT821A is a 10-bit buffered D-type flip-flop with 3-state outputs.  
- It features a buffered clock (CLK) and output enable (OE) for synchronous operation.  
- Data is transferred from D inputs to Q outputs on the rising edge of CLK.  
- Outputs are disabled when OE is high.  

### **Features:**  
- **10-bit parallel storage register**  
- **3-state outputs for bus-oriented applications**  
- **Buffered clock and output enable control**  
- **High-drive outputs (±24 mA)**  
- **ESD protection exceeds 2000V per JESD 22**  
- **Latch-up performance exceeds 500 mA per JESD 17**  

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

Application Scenarios & Design Considerations

10-Bit Bus Interface Flip-Flops With 3-State Outputs

Alternative Part Number

  • 74ABT821ADGVR --: Same 10-bit D-type flip-flop function with 3-state outputs in the ABT family, available from NXP as a direct functional equivalent.
  • CY74FCT821ATQ --: FCT-series 10-bit flip-flop with 3-state outputs offering comparable speed and drive, suitable as a functional replacement.
  • 74ACT821SC --: ACT-family 10-bit D flip-flop with 3-state outputs, pin-compatible logic function with similar AC characteristics.

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