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Product Detailed Parameters
- Description：IC BUFFER NON-INVERT 6V 20SOP
- Series：74HC
- Mfr：Toshiba Semiconductor and Storage
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：Buffer, Non-Inverting
- Number of Elements：1
- Number of Bits per Element：8
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：7.8mA, 7.8mA
- Voltage - Supply：2V ~ 6V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：20-SOP
- Grade：-
- Qualification：-
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Overview
The TC74HC541AF(EL,F) is an octal bus buffer with non-inverting, three-state outputs fabricated using silicon gate C2MOS technology. It operates within a supply voltage range of 2 to 6 V and supports an operating temperature from -40 to 85 °C. Typical propagation delay is 10 ns at 5 V, with maximum quiescent current of 4 μA at 25 °C. The device drives 15 LSTTL loads with symmetrical output impedance of 6 mA minimum. Input noise immunity is 28% of VCC. Unused inputs must be tied to VCC or GND.
Feature Summary
- Non-inverting octal bus buffer with three-state outputs
- High-speed operation comparable to equivalent LSTTL
- CMOS low power dissipation with high noise immunity
- Pin and function compatible with 74LS540/541
Applications
- Data bus buffering in digital systems
- Memory address/data bus drivers
- Clock distribution networks
- I/O port expansion circuits
Procurement Notes
Verify the specific suffix (EL,F) against Toshiba's official ordering guide to confirm package type and tape/reel specifications. Ensure the component meets RoHS compliance requirements for your region. Confirm that the operating conditions, including voltage and temperature ranges, align with your system design before procurement. Check for any recent lifecycle status updates directly from the manufacturer.
Selection Notes
Select this component when non-inverting logic is required for octal data transfer. It is suitable for applications needing high-speed buffering with low power consumption. Ensure the load capacitance does not exceed specified limits to maintain signal integrity. Verify compatibility with existing 74LS series interfaces if pin-for-pin replacement is intended.
Part Context
This part belongs to the TC74HC540/541AP/AF family of octal bus buffers. The TC74HC541A variant specifically provides non-inverting outputs, whereas the TC74HC540A offers inverting outputs. Both share identical pinouts and electrical characteristics, differing only in logic polarity. The AF suffix typically denotes a plastic SOP package.
Replacement Considerations
Direct functional substitutes include the TC74HC540AF for inverting applications. Other manufacturers' 74HC541 equivalents may be used if pin compatibility and electrical specs match. Verify that substitute parts meet the same voltage and temperature ratings.
