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Product Detailed Parameters
- Description：IC BUFFER NON-INVERT 5.5V 20LCCC
- Series：54ACTQ
- Mfr：National Semiconductor
- Package：Bulk
- Logic Type：Buffer, Non-Inverting
- Number of Elements：2
- Number of Bits per Element：4
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-CLCC
- Supplier Device Package：20-LCCC (8.89x8.89)
- Grade：-
- Qualification：-
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Overview
The 54ACTQ244ERQMLV is a military-grade octal buffer and line driver from the Quiet Series. It features two non-inverting 4-bit elements with 3-state outputs, housed in a 20-CLCC surface-mount package. The device operates within a supply voltage range of 4.5V to 5.5V and supports an extended temperature range of -55°C to 125°C. Designed for high-reliability applications, it serves as a memory address driver, clock driver, or bus-oriented transmitter.
Feature Summary
- Military-grade reliability with extended temperature operation
- Octal buffering with independent 3-state control
- Low noise Quiet Series design for signal integrity
Applications
- Memory address drivers
- Clock distribution networks
- Bus-oriented transmitters
Procurement Notes
Verify the specific ERQMLV suffix against the manufacturer's current datasheet to confirm military qualification status and pinout compatibility. Ensure the 20-CLCC package dimensions match your PCB footprint requirements. Confirm that the operating voltage and temperature ranges align with your system's environmental specifications before finalizing procurement.
Selection Notes
Select this component when military-grade performance and low noise are required for octal data transmission. The 3-state output capability allows for efficient bus sharing. Consider the 20-CLCC package constraints during layout. Verify that the ACT logic family speed and drive strength meet the specific timing requirements of the target application interface.
Part Context
This part belongs to the National Semiconductor (now Texas Instruments) 54ACTQ244 Quiet Series. It is the qualified variant of the standard 54ACT244 octal buffer. The series is designed for high-performance digital systems requiring robust signal driving capabilities with minimized switching noise.
Replacement Considerations
Direct substitutes include other 54ACTQ244 variants from National Semiconductor/TI. Cross-reference with JM54AC244B2A-RH for similar functionality, though verify package and qualification differences. Standard 54ACT244 devices may serve as functional replacements if military qualification is not required.
