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Product Detailed Parameters
- Description：D FLIP-FLOP, TTL
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Function：Set(Preset) and Reset
- Type：D-Type
- Output Type：Complementary
- Number of Elements：2
- Number of Bits per Element：1
- Clock Frequency：15 MHz
- Max Propagation Delay @ V, Max CL：40ns @ 5V, 15pF
- Trigger Type：Positive Edge
- Current - Output High, Low：400µA, 16mA
- Voltage - Supply：4.75V ~ 5.25V
- Current - Quiescent (Iq)：30 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The DM7474MX is a dual D-type flip-flop manufactured by Fairchild Semiconductor in the 74 series. It features two independent positive-edge-triggered elements with complementary outputs, preset, and clear inputs. The device utilizes a 14-pin SOIC surface-mount package (0.154 inch width). It operates within a standard TTL logic family, providing reliable data storage for sequential logic applications.
Feature Summary
- Contains two independent D-type flip-flops with complementary outputs
- Positive-edge-triggered data acceptance mechanism
- Includes dedicated Set (Preset) and Reset (Clear) control functions
Applications
- Sequential logic circuit design
- Data storage registers
- Shift register configurations
Procurement Notes
Verify that the specific suffix 'MX' corresponds to the 14-SOIC surface mount package configuration as documented. Confirm component status remains active through official manufacturer channels. Ensure compatibility with standard TTL voltage levels and operating temperature ranges specified in the datasheet before integration.
Selection Notes
Select this component when dual independent D-type storage is required in a compact surface-mount form factor. The presence of direct preset and clear inputs allows for immediate state initialization without clock dependency. Verify pinout alignment with existing PCB footprints to ensure mechanical fitment.
Part Context
This part belongs to the widely adopted 74 series digital logic family, ensuring broad industry compatibility. As an advanced low-power Schottky or standard TTL variant depending on specific sub-series documentation, it supports high-speed switching. The MX designation indicates a specific surface-mount packaging style suitable for automated assembly processes.
Replacement Considerations
Cross-reference with other dual D-type flip-flops in the 74 series such as the DM74LS74 or DM74ALS74 for potential pin-compatible alternatives. Verify electrical characteristics and package dimensions match before substitution.
