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Lógica y traducción de voltaje
Circuitos integrados lógicos configurables y programables
Multivibrador One-shots

CD14538B-MIL

ACTIVO

Multivibrador monoestable CMOS de precisión doble (funcionamiento a 125 C)

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CD14538B-MIL

ACTIVO
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Detalles del producto

Number of channels 2 Supply voltage (min) (V) 3 Supply voltage (max) (V) 18 Technology family CD4000 Input type CMOS Output type CMOS Supply current (µA) 3000 IOL (max) (mA) 4 IOH (max) (mA) -4 Features Balanced outputs, Positive input clamp diode, Retriggerable, Standard speed (tpd > 50ns) Operating temperature range (°C) -55 to 125 Rating Military
Number of channels 2 Supply voltage (min) (V) 3 Supply voltage (max) (V) 18 Technology family CD4000 Input type CMOS Output type CMOS Supply current (µA) 3000 IOL (max) (mA) 4 IOH (max) (mA) -4 Features Balanced outputs, Positive input clamp diode, Retriggerable, Standard speed (tpd > 50ns) Operating temperature range (°C) -55 to 125 Rating Military
  • 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
  • Replaces CD4538B Type
  • 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 20 V
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • Noise margin (full package-temperature range):
    • 1 V at VDD = 5 V
    • 2 V at VDD = 10 V
    • 2.5 V at VDD = 15 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Standardized, symmetrical output characteristics
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
  • Applications:
    • Pulse delay and timing
    • Pulse shaping

*T = 0.5 RXCX for CX 1000 pF
#T = RXCX; CXmin = 5000 pF
Data sheet acquired from Harris Semiconductor
  • 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
  • Replaces CD4538B Type
  • 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 20 V
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • Noise margin (full package-temperature range):
    • 1 V at VDD = 5 V
    • 2 V at VDD = 10 V
    • 2.5 V at VDD = 15 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Standardized, symmetrical output characteristics
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
  • Applications:
    • Pulse delay and timing
    • Pulse shaping

*T = 0.5 RXCX for CX 1000 pF
#T = RXCX; CXmin = 5000 pF
Data sheet acquired from Harris Semiconductor

CD14538B 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.

Leading-edge-triggering (+TR) and trailing-edge-triggering (-TR) inputs are provided for triggering from either edge of an input pulse. An unused +TR input should be tied to VSS. An unused -TR input should be tied to VDD. A RESET (on low level) is provided for immediate termination of the output pulse or to prevent output pulses when power is turned on. An unused RESET input should be tied to VDD. However, if an entire section of the CD14538B is not used, its inputs must be tied to either VDD or VSS. See Table 1.

In normal operation the circuit retriggers (extends the output pulse one period) on the application of each new trigger pulse. For operation in the non-retriggerable mode, Q\ is connected to -TR when leading-edge triggering (+TR) is used or Q is connected to +TR when trailing-edge triggering (-TR) is used. The time period (T) for this multivibrator can be calculated by: T = RXCX.

The minimum value of external resistance, RX, is 4 K. The minimum and maximum values of external capacitance, CX are 0 pF and 100µF, respectively.

The CD14538B is interchangeable with type MC14538 and is similar to and pin-compatible with the CD4098B* and CD4538B. It can replace the CD4538B which type is not recommended for new designs.

The CD14538B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

CD14538B 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.

Leading-edge-triggering (+TR) and trailing-edge-triggering (-TR) inputs are provided for triggering from either edge of an input pulse. An unused +TR input should be tied to VSS. An unused -TR input should be tied to VDD. A RESET (on low level) is provided for immediate termination of the output pulse or to prevent output pulses when power is turned on. An unused RESET input should be tied to VDD. However, if an entire section of the CD14538B is not used, its inputs must be tied to either VDD or VSS. See Table 1.

In normal operation the circuit retriggers (extends the output pulse one period) on the application of each new trigger pulse. For operation in the non-retriggerable mode, Q\ is connected to -TR when leading-edge triggering (+TR) is used or Q is connected to +TR when trailing-edge triggering (-TR) is used. The time period (T) for this multivibrator can be calculated by: T = RXCX.

The minimum value of external resistance, RX, is 4 K. The minimum and maximum values of external capacitance, CX are 0 pF and 100µF, respectively.

The CD14538B is interchangeable with type MC14538 and is similar to and pin-compatible with the CD4098B* and CD4538B. It can replace the CD4538B which type is not recommended for new designs.

The CD14538B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).
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Esta hoja de datos se aplica tanto a  CD14538B como a  CD14538B-MIL

Documentación técnica

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Tipo Título Fecha
* Data sheet CD14538B TYPES datasheet (Rev. C) 13 oct 2003

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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