74HC298M - Brand New STMicroelectronics IC Chips
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Description
The 74HC298M is a high-speed CMOS quad 2-channel multiplexer/register. It is fabricated in silicon gate C2MOS technology. This component has the same high-speed performance of LSTTL combined with true CMOS low power consumption. The input selection is controlled by the signals WORD SELECT and CLOCK. When the WORD SELECT input is taken low, Word 1 (A1, B1, C1, and D1) is presented to the input of the flip-flops. Conversely, when WORD SELECT is high, Word 2 (A2, B2, C2, and D2) is presented to the inputs of the flip-flops. The select word is clocked to the output terminals on the negative edge of the clock pulse. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
Specifications and Features
■ HIGH SPEED fMAX = 73 MHz (typ.) AT VCC = 5 V
■ LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C
■ HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.)
■ OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS
■ SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.)
■ BALANCED PROPAGATION DELAYS tPLH = tPHL
■ WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V
■ PIN AND FUNCTION COMPATIBLE WITH 54/74LS298
Application Scenarios
The 74HC298M is commonly used in electronic circuits that require multiplexing and register functionality. It can be used in applications that require high-speed performance combined with low power consumption. Some potential scenarios include data acquisition systems, communication systems, and signal processing systems.
Comparison
Advantages- High-speed performance
- Low power consumption
- High noise immunity
- Wide operating voltage range
Disadvantages- Not compatible with non-CMOS technologies
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Datasheet
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- Datasheet: Download 74HC298M
- Chipdatas Part: CD94-74HC298M
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- Last Updated: 2024/06/03 16:01 +0800
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