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MC74VHCT240ADTRG
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Product Detailed Parameters
- Description：IC BUFFER INVERT 5.5V 20TSSOP
- Series：74VHCT
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：Buffer, Inverting
- Number of Elements：2
- Number of Bits per Element：4
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：8mA, 8mA
- Voltage - Supply：4.5V ~ 5.5V
- 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 MC74VHCT240ADTRG is an octal buffer and line driver manufactured by onsemi, belonging to the VHCT logic series. It features eight independent channels with inverting polarity and three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. It provides high output drive capabilities with specified currents of -8 mA for low state and 8 mA for high state. The component is housed in a 20-TSSOP surface-mount package and is designed for operation across a temperature range of -40°C to +85°C.
Feature Summary
- Provides TTL-compatible input levels while utilizing CMOS technology for internal processing.
- Features three-state outputs that allow connection to bus-oriented systems.
- Delivers high current drive capability suitable for driving capacitive loads.
Applications
- Bus-oriented memory and address drivers
- Clock drivers and buffering
- TTL-to-CMOS level translation
Procurement Notes
Verify the specific suffix 'G' for RoHS compliance status when sourcing, as the base part number may have non-compliant variants. Confirm the package type matches the design footprint requirements. Check for obsolescence notices or product change notifications from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when interfacing between TTL and CMOS logic families requiring inverting functionality. Ensure the system voltage remains within the 4.5 V to 5.5 V range. Consider the thermal performance and package size constraints associated with the TSSOP-20 form factor during PCB layout.
Part Context
This part belongs to the 74VHCT family, which combines the speed of VHCT technology with TTL-compatible inputs. It serves as an octal buffer/driver variant within the broader 74-series logic ecosystem, offering a solution for high-density digital signal routing in mixed-voltage environments.
Replacement Considerations
Direct substitutes include MC74VHC240DTR2G. Cross-brand alternatives such as SN74AHC240PW or SN74AHC240PWR are available but utilize AHC logic rather than VHCT, requiring verification of input threshold compatibility.
