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Octal 3-state Inverting Buffer IC - 74HC540
Octal 3-state Inverting Buffer IC - 74HC540
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- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1 A
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance With the JEDEC Standard No. 7 A Requirements
- Chip Complexity: 124 FETs or 31 Equivalent Gates
- NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
- These Devices are Pb−Free and are RoHS Compliant
Octal 3-state Inverting Buffer IC - 74HC540
The 74HC Series 74HC540 is a 20 Pin Octal 3-state Inverting Buffer IC having a 2V to 6V Operating Voltage range with a 6mA output current. The 3-STATE buffers utilize advanced silicon-gate CMOS technology. They possess high drive current outputs, enabling high-speed operation even when driving large bus capacitances.
These circuits achieve speeds comparable to low-power Schottky devices while retaining the advantage of CMOS circuitry, i.e., high noise immunity, and low power consumption. Both devices have a fanout of 15 LS-TTL equivalent inputs. The 74HC540 is an inverting buffer and the MM74HC541 is a non-inverting buffer. The 3-STATE control gate operates as a two-input NOR such that if either G1 or G2 is HIGH, all eight outputs are in the high-impedance state.
Pinout:
Package Includes:
- 1 x IC - 74HC540
Specifications:
| Supply Voltage | − 0.5 to + 7.0V |
| DC Input Voltage | –0.5 to VCC + 0.5 |
| DC Output Voltage | −0.5 ≤ VO ≤ VCC + 0.5 |
| DC Input Diode Current | ±20 mA |
| DC Output Diode Current | ±35 mA |
| Output Current | ± 35 mA |
| DC VCC or GND Current, per pin | ± 75 mA |
| Storage Temperature Range | − 65°C to + 150 °C |
| Power Dissipation | 500 mW |
| Lead Temperature | 260 °C |
Shipping & Returns
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ADDITIONAL RESOURCES
1.What is the purpose of the output enable (OE) pin on the 74HC540?
- The output enable (OE) pin controls whether the 74HC540's outputs are disabled or enabled. The outputs are disabled when the OE pin is high, and enabled when it is low. This feature can be useful for reducing power consumption or interacting with other systems that may require the outputs to be disabled at times.
2.What is the use of 74HC540?
- The 74HC540 is an octal buffer/line driver integrated circuit (IC) that is commonly used for driving high-impedance loads or interfacing systems with different voltage levels.