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MC74AC244DTR2
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Product Detailed Parameters
- Description：IC BUFF NON-INVERT 6V 20TSSOP
- Series：74AC
- Mfr：onsemi
- Package：Tape & Reel (TR)
- 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：2V ~ 6V
- Operating Temperature：-40°C ~ 85°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 MC74AC244DTR2G is an octal buffer and line driver from the onsemi 74AC logic family. It features eight non-inverting inputs with three-state outputs, housed in a 20-TSSOP package. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a maximum high-level output current of -24 mA and a low-level output current of 24 mA. Propagation delay is specified at 9 ns at 3.3 V and 7 ns at 5 V. Quiescent current is typically 8 uA, with a maximum power dissipation of 200 mW.
Feature Summary
- Provides eight non-inverting signal paths for bus-oriented memory and clock drivers.
- Features three-state outputs that isolate the device when disabled.
- Supports wide supply voltage operation from 2 V to 6 V.
Applications
- Bus-oriented memory and clock drivers
- Slave and master drives
- Bidirectional data bus transmission
Procurement Notes
Verify the complete part number includes the trailing 'G' suffix (MC74AC244DTR2G), which indicates RoHS compliance. Confirm the package type is TSSOP-20 and the reel quantity matches procurement requirements. Ensure the datasheet version aligns with design specifications before finalizing orders.
Selection Notes
Select this component for applications requiring high-speed buffering with low static power consumption. The AC series offers faster propagation delays than HC or HCT counterparts while maintaining CMOS compatibility. Verify that the load capacitance and supply voltage fall within the specified operational limits for the target application speed.
Part Context
This component belongs to the 74AC logic family, known for high-speed performance comparable to LS TTL but with CMOS power advantages. The base part number 74AC244 defines the octal three-state buffer functionality. The DTR2G suffix specifies the surface-mount TSSOP-20 packaging and RoHS-compliant manufacturing process.
Replacement Considerations
Direct substitutes include MC74ACT244DTR2G for 5V-only applications. Other compatible variants are MC74HC244DTR2G for slower speeds and MC74LVX244DTR2G for lower voltage ranges. Verify pinout and electrical characteristics match before substitution.
