Texas Instruments CD14538BE

Description

CD14538BMS dual precision monostable multivibrator provides stable retriggerable/resettable one-shot operation for any fixed-voltage timing application. An external resistor (RX) and an external capacitor (CX) control the timing and accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q terminals. The time delay from trigger input to output transition (trigger propagation delay) and the time delay from reset input to output transition (reset propagation delay) are independent of RX and CX. Precision control of output pulse widths is achieved through linear CMOS techniques.

Features

• High-Voltage Type (20V Rating)
• Retriggerable/Resettable Capability
• Trigger and Reset Propagation Delays Independent of RX, CX
• Triggering From Leading or Trailing Edge
• Q and Q Buffered Outputs Available
• Separate Resets
• Wide Range of Output-Pulse Widths
• Schmitt-Trigger Input Allows Unlimited Rise and Fall Times On +TR and -TR Inputs
• 100% Tested For Maximum Quiescent Current at 20V
• Maximum Input Current of 1µA at 18V Over Full Package-Temperature Range:
- 100nA at 18V and +25℃
• Noise Margin (Full Package-Temperature Range):
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
• 5V, 10V and 15V Parametric Ratings
• Standardized Symmetrical Output Characteristics
• Meets All Requirements of JEDEC Tentative Standards No. 13B, “Standard Specifica tions for Description of “B” Series CMOS Device’s

Applications

• Pulse Delay and Timing
• Pulse Shaping