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74AC74SJX
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Product Detailed Parameters
- Description：IC FF D-TYPE DUAL 1BIT 14SOP
- Series：74AC
- 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：160 MHz
- Max Propagation Delay @ V, Max CL：10ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Iq)：20 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOP
- Package / Case：14-SOIC (0.209", 5.30mm Width)
- Input Capacitance：4.5 pF
- Grade：-
- Qualification：-
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Overview
The Fairchild Semiconductor 74AC74SJX is a dual D-type positive edge-triggered flip-flop housed in a 14-lead Small Outline Package (SOP). It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range from -40 °C to +85 °C. The device features asynchronous Set and Clear inputs, with outputs capable of sourcing and sinking 24 mA. Static current consumption is specified at 20 µA, and the maximum propagation delay is 10 ns at 5 V with a 50 pF load.
Feature Summary
- Dual D-type flip-flops with complementary Q and Q outputs
- Asynchronous Set and Clear functions independent of clock signal
- High drive capability with 24 mA output source/sink capacity
Applications
- Edge-triggered storage registers
- Parallel-to-serial converters
- Data latching circuits
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm package marking matches the SOP-14 specification. Check for RoHS compliance status as indicated by manufacturer documentation. Ensure storage conditions adhere to moisture sensitivity level requirements prior to assembly.
Selection Notes
Select this component when dual independent D-type storage is required in a compact surface-mount format. Consider the 2V to 6V operating range for compatibility with various logic levels. Evaluate the 24 mA drive strength against load requirements. Verify that asynchronous control signals meet timing specifications relative to the clock edge.
Part Context
This part belongs to the 74AC logic family, characterized by CMOS technology offering high-speed operation and reduced power consumption compared to earlier standards. The SJX suffix indicates the specific SOP-14 package variant manufactured by Fairchild Semiconductor, now part of onsemi.
Replacement Considerations
Equivalent parts include the SN74AC74DR from Texas Instruments and the MC74AC74DG from onsemi. These alternatives provide identical logical functionality and pinout compatibility within the same logic family specifications.
