TI CD74HC123PWR

单稳态25 ns2 V ~ 6 V

Overview

The ’HC123, ’HCT123, CD74HC423 and CD74HCT423 are dual monostable multivibrators with resets. They are all retriggerable and differ only in that the 123 types can be triggered by a negative to positive reset pulse; whereas the 423 types do not have this feature. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of Rx and CX provides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the A\ and B inputs occur at a particular voltage level and is not related to the rise and fall times of the trigger pulses.

The minimum value of external resistance, Rx is typically 5k. The minimum value external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.45 RXCX at VCC = 5V.

Features

74HC Series
in 16-TSSOP (0.173, 4.40mm Width) package
Mounting Type: Surface Mount
Logic Type: Monostable
Operating Temperature: 74HC
based on 74HC123
Supply Voltage: 4.5V
Quiescent Current at 8μA
output current at 5.2mA
2 bits

2 V ~ 6 V Voltage - Supply

Applications

There are a lot of Texas Instruments
CD74HC123PWR applications of multivibrators.

• Frequency multiplication
• Frequency division
• Frequency discriminators
• Timing clrcults
• Time-delay applications
• AV Receivers
• Blu-ray Players and Home Theaters
• DVD Recorders and Players
• Desktop PCs or Notebook PCs
• Digital Radio and Internet Radio Players