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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 10BIT 24SOP
- Series：74LCX
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：10
- Clock Frequency：150 MHz
- Max Propagation Delay @ V, Max CL：7ns @ 3.3V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：2V ~ 3.6V
- Current - Quiescent (Iq)：10 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：24-SOP
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Input Capacitance：7 pF
- Grade：-
- Qualification：-
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Overview
The Fairchild Semiconductor 74LCX821WMX is a low voltage 10-bit D-type flip-flop featuring 3-state outputs. Designed for 2.5V or 3.3V VCC applications, it provides 5V tolerant inputs and outputs to interface with 5V signal environments. Fabricated using advanced CMOS technology, the device achieves high-speed operation while maintaining low power dissipation. It supports live insertion/withdrawal and implements patented noise and EMI reduction circuitry.
Feature Summary
- Features 5V tolerant inputs and outputs for direct interfacing with 5V signal environments
- Implements patented noise and EMI reduction circuitry for improved signal integrity
- Supports live insertion and withdrawal operations via power-down high impedance states
Applications
- Bus organized system applications requiring 10-bit data storage
- Low voltage digital systems operating at 2.5V or 3.3V
- Interfaces between low voltage logic and 5V signal environments
Procurement Notes
Verify the specific suffix 'WMX' against official Fairchild documentation to confirm package type and tape/reel specifications. Ensure compatibility with 2.5V or 3.3V supply voltages and 5V tolerant I/O requirements. Confirm lead-free status and RoHS compliance if required by your manufacturing standards. Cross-reference with ON Semiconductor equivalents if sourcing constraints exist.
Selection Notes
Select this component when designing bus-oriented systems that require 10-bit parallel data latching with tri-state control. It is suitable for applications needing 5V tolerance on both inputs and outputs while operating from lower voltage supplies. Consider its high-speed CMOS performance and EMI reduction features for sensitive digital designs.
Part Context
This part belongs to the 74LCX series of low voltage CMOS logic devices. The LCX family is characterized by 5V tolerant I/Os and operation from 2.3V to 3.6V supplies. The 821 variant specifically provides 10-bit D-type flip-flops with 3-state outputs, distinguishing it from single-bit or non-tristate variants in the same family.
Replacement Considerations
The 74LCX821MTC and 74LCX821MSA are documented similar parts from Fairchild/ON Semiconductor. Verify pinout and electrical characteristics before substitution.
