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MC74HCT244ADTR2
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Product Detailed Parameters
- Description：IC BUF NON-INVERT 5.5V 20TSSOP
- Series：74HCT
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：6mA, 6mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-TSSOP
- Grade：-
- Qualification：-
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Overview
The MC74HCT244ADTR2 is an octal buffer and line driver manufactured by onsemi, belonging to the HCT logic series. It features eight non-inverting inputs and outputs with three-state capability. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes TSSOP-20 surface-mount packaging. Key electrical characteristics include high-level and low-level output currents of 6 mA each. The component supports a wide operating temperature range from -55°C to +125°C.
Feature Summary
- Provides octal buffering with three-state output control for bus-oriented communication systems.
- Ensures compatibility with TTL-driven interfaces through HCT logic family specifications.
- Supports industrial-grade thermal performance across extended temperature ranges.
Applications
- Bus-oriented memory and address drivers
- Clock distribution buffers
- Bidirectional data bus transceivers
Procurement Notes
Verify the exact suffix against official datasheets, as 'DTR2' may indicate specific tape-and-reel configurations or regional variants. Confirm RoHS compliance status directly with onsemi documentation. Ensure the ordering part number matches the required package type and temperature grade. Cross-reference with authorized distributors to validate authenticity and traceability.
Selection Notes
Select this component when designing systems requiring octal buffering with three-state isolation. It is suitable for applications needing interface between CMOS and TTL logic levels. Consider the TSSOP-20 package for space-constrained PCB layouts. Verify that the 6 mA drive current meets the load requirements of the connected circuitry.
Part Context
This part belongs to the MC74HCT244A family of octal buffers. Similar variants include MC74HCT244ADWG in SOIC-Wide-20 packaging and MM74HCT244MTC in TSSOP-20. These components share core logical functionality but differ in physical package dimensions and manufacturing lot specifications.
Replacement Considerations
Direct substitutes include MC74HCT244ADWG and MM74HCT244MTC. Verify pinout compatibility and package footprint before substitution. Check if alternative manufacturers offer equivalent HCT octal buffers with matching electrical characteristics.
