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MC74HCT244AFELG
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Product Detailed Parameters
- Description：IC BUF NON-INVERT 5.5V SOEIAJ-20
- Series：74HCT
- Mfr：onsemi
- Package：Tape & Reel (TR),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：6mA, 6mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：SOEIAJ-20
- Grade：-
- Qualification：-
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Overview
The MC74HCT244AFELG is an octal buffer and line driver manufactured by onsemi, belonging to the HCT logic series. It features eight non-inverting inputs with three-state outputs, housed in a 20-pin SOIC-Wide package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 20 ns at 5 V, static current of 4 uA, and output drive capabilities of -6 mA for high level and 6 mA for low level. It supports surface mount installation and functions reliably across a temperature range of -55°C to +125°C.
Feature Summary
- Provides octal buffering with non-inverting signal transmission
- Features three-state outputs for bus-oriented control
- Compatible with TTL voltage levels via HCT logic family
- Supports wide industrial operating temperature ranges
Applications
- Bus-oriented memory and address drivers
- Clock distribution buffers
- TTL-to-CMOS level translation interfaces
Procurement Notes
Verify the specific suffix 'AFELG' against official datasheets to confirm package dimensions and tape/reel specifications. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.
Selection Notes
Select this component when designing systems requiring octal buffering with TTL-compatible input thresholds. Ensure the design environment accommodates the specified 4.5 V to 5.5 V supply range. Consider the SOIC-Wide package footprint during PCB layout planning to ensure adequate thermal dissipation and mechanical stability.
Part Context
This part belongs to the MC74HCT244A family of octal buffers. It shares functional similarities with other HCT-series devices but is distinct due to its specific pinout and three-state output configuration. It serves as a standard interface component in digital logic circuits requiring signal isolation or amplification.
Replacement Considerations
Direct substitutes may include MM74HCT244 variants or equivalent parts from other manufacturers offering identical HCT logic functionality and 20-pin SOIC packaging. Verify pin compatibility and electrical characteristics before substitution.
