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Product Detailed Parameters
- Description：IC FF D-TYPE DUAL 1BIT 14SOP
- Series：74ALS
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Set(Preset) and Reset
- Type：D-Type
- Output Type：Complementary
- Number of Elements：2
- Number of Bits per Element：1
- Clock Frequency：34 MHz
- Max Propagation Delay @ V, Max CL：18ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：400µA, 8mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：4 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOP
- Package / Case：14-SOIC (0.209", 5.30mm Width)
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The DM74ALS74ASJX is a dual D-type positive edge-triggered flip-flop manufactured by onsemi, belonging to the ALS logic series. It features asynchronous Clear and Set inputs along with complementary Q and Q outputs. The device operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 14-SOP package measuring 0.209 inches (5.30mm) wide. It functions reliably across an operating temperature range of 0°C to +70°C.
Feature Summary
- Dual D-type flip-flops with positive edge triggering for precise data synchronization
- Asynchronous Clear and Set inputs allow immediate state control independent of clock signals
- Complementary Q and Q outputs provide both true and inverted signal availability
Applications
- Data storage and register circuits requiring dual-bit memory elements
- Synchronization of data streams in digital communication systems
- State machine implementation in embedded control logic
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to potential counterfeit risks. Confirm RoHS compliance status via official documentation as regulatory requirements vary by region. Ensure proper handling procedures are followed during storage and assembly to maintain device integrity and performance specifications.
Selection Notes
Select this component when dual independent D-type flip-flops with asynchronous control are required in space-constrained designs. The SOP-14 package offers a compact solution for surface-mount applications. Consider the ALS series characteristics for balanced speed and power consumption compared to standard TTL alternatives.
Part Context
This part belongs to the DM74ALS family of high-speed logic integrated circuits produced by onsemi. The ALS series combines advanced logic structures with low power dissipation, making it suitable for various digital applications. The specific model provides dual flip-flop functionality within a standardized package format compatible with common PCB layouts.
Replacement Considerations
Direct substitutes include SN74ALS74 from Texas Instruments. Verify pinout compatibility and electrical parameters before substitution. Alternative packages may require adapter solutions if physical footprint constraints differ.
