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Part Name(s) : HD74LS123 Hitachi
Hitachi -> Renesas Electronics
Description : Dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (with Clear) View

Dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (with Clear)

Part Name(s) : SN74AHC123ADBRE4 SN74AHC123ANE4 SN74AHC123ADE4 TI
Texas Instruments
Description : DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS View

description/ordering information
The ’AHC123A devices are dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS designed for 2-V to 5.5-V VCC operation.
   
● Operating Range 2-V to 5.5-V VCC
● Schmitt-Trigger Circuitry On A, B, and CLR
    Inputs for Slow Input Transition Rates
● Edge Triggered From Active-High or
    Active-Low Gated Logic Inputs
RETRIGGERABLE for Very Long Output Pulses
● Overriding Clear Terminates Output Pulse
● Glitch-Free Power-Up Reset On Outputs
● Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
● ESD Protection Exceeds JESD 22
    − 2000-V Human-Body Model (A114-A)
    − 200-V Machine Model (A115-A)
    − 1000-V Charged-Device Model (C101)
   

Part Name(s) : HD74LS123 HD74LS123P HD74LS123FPEL HD74LS123RPEL Renesas
Renesas Electronics
Description : Dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (with Clear) View

Dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (with Clear)

This d-c triggered multivibrator features output pulse width control by three method. The basic pulse time is programmed by selection of external resistance and capacitance values. Once triggered, the basic pulse width may be extended by retriggering the gated low-level -active (A) or high-level active (B) inputs, or be reduced by use of the overriding clear. Figure 1 illustrates pulse control by retriggering and early clear. This device is provided enough Schmitt hysteresis to ensure jitter-free triggering from the B input with transition rates as slow as 0.1 mV/ns.

Part Name(s) : SN74LS122NSRG4 SN74LS122NSRE4 SN74LS122DRG4 SN74LS122DE4 TI
Texas Instruments
Description : RETRIGGERABLE MONOSTABLE MULTIVIBRATORS View

description
These d-c triggered MULTIVIBRATORS feature output pulse-duration control by three methods. The basic pulse time is programmed by selection of external resistance and capacitance values(see typical application data).

• D-C Triggered from Active-High or Active-Low Gated Logic Inputs
RETRIGGERABLE for Very Long Output Pulses, Up to 100% Duty Cycle
• Overriding Clear Terminates Output Pulses
• 122 and LS122 Have Internal Timing resistors


Part Name(s) : 5962-9860801Q2A 5962-9860801QEA 5962-9860801QFA AHC123A HA123A SN54AHC123A SN74AHC123A SN74AHC123AD SN74AHC123ADBR SN74AHC123ADG4 SN74AHC123ADGVR SN74AHC123ADGVRE4 SN74AHC123ADR SN74AHC123ADRE4 SN74AHC123ADRG4 SN74AHC123AN SN74AHC123APWR SN74AHC123APWRE4 SN74AHC123APWRG4 SNJ54AHC123AFK SNJ54AHC123AW SNJ54AHC123AJ TI
Texas Instruments
Description : DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS View

description/ordering information
The ’AHC123A devices are dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS designed for 2-V to 5.5-V VCC operation.
   
● Operating Range 2-V to 5.5-V VCC
● Schmitt-Trigger Circuitry On A, B, and CLR
    Inputs for Slow Input Transition Rates
● Edge Triggered From Active-High or
    Active-Low Gated Logic Inputs
RETRIGGERABLE for Very Long Output Pulses
● Overriding Clear Terminates Output Pulse
● Glitch-Free Power-Up Reset On Outputs
● Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
● ESD Protection Exceeds JESD 22
    − 2000-V Human-Body Model (A114-A)
    − 200-V Machine Model (A115-A)
    − 1000-V Charged-Device Model (C101)
   

Part Name(s) : SN74LS122ML1 ON-Semiconductor
ON Semiconductor
Description : RETRIGGERABLE MONOSTABLE MULTIVIBRATORS View

These dc triggered MULTIVIBRATORS feature pulse width control by three methods. The basic pulse width is programmed by selection of external resistance and capacitance values. The LS122 has an internal timing resistor that allows the circuits to be used with only an external capacitor. Once triggered, the basic pulse width may be extended by retriggering the gated low-level-active (A) or high-level-active (B) inputs, or be reduced by use of the overriding clear.
   
• Overriding Clear Terminates Output Pulse
• Compensated for VCC and Temperature Variations
• DC Triggered from Active-High or Active-Low Gated Logic Inputs
RETRIGGERABLE for Very Long Output Pulses, up to 100% Duty Cycle
• Internal Timing Resistors on LS122
   

Part Name(s) : SN74LS123ML1 SN74LS123ML2 SN74LS123MR1 ON-Semiconductor
ON Semiconductor
Description : RETRIGGERABLE MONOSTABLE MULTIVIBRATORS View

These dc triggered MULTIVIBRATORS feature pulse width control by three methods. The basic pulse width is programmed by selection of external resistance and capacitance values. The LS122 has an internal timing resistor that allows the circuits to be used with only an external capacitor. Once triggered, the basic pulse width may be extended by retriggering the gated low-level-active (A) or high-level-active (B) inputs, or be reduced by use of the overriding clear.

• Overriding Clear Terminates Output Pulse
• Compensated for VCC and Temperature Variations
• DC Triggered from Active-High or Active-Low Gated Logic Inputs
RETRIGGERABLE for Very Long Output Pulses, up to 100% Duty Cycle
• Internal Timing Resistors on LS122

Part Name(s) : SN74LS122 SN74LS122D SN74LS122DR2 SN74LS122N SN74LS123 SN74LS123D SN74LS123DR2 SN74LS123M SN74LS123MEL SN74LS123N ON-Semiconductor
ON Semiconductor
Description : RETRIGGERABLE MONOSTABLE MULTIVIBRATORS View

These dc triggered MULTIVIBRATORS feature pulse width control by three methods. The basic pulse width is programmed by selection of external resistance and capacitance values. The LS122 has an internal timing resistor that allows the circuits to be used with only an external capacitor. Once triggered, the basic pulse width may be extended by retriggering the gated low-level-active (A) or high-level-active (B) inputs, or be reduced by use of the overriding clear.

• Overriding Clear Terminates Output Pulse
• Compensated for VCC and Temperature Variations
• DC Triggered from Active-High or Active-Low Gated Logic Inputs
RETRIGGERABLE for Very Long Output Pulses, up to 100% Duty Cycle
• Internal Timing Resistors on LS122

Part Name(s) : CD74HC123 CD74HC123E CD74HC123M CD74HC423 CD74HC423E CD74HC423M CD74HCT123 CD74HCT123E CD74HCT123M CD74HCT423 CD74HCT423E CD74HCT423M Harris
Harris Semiconductor
Description : High Speed CMOS Logic Dual RETRIGGERABLE MONOSTABLE MULTIVIBRATORS with Resets View

Description
The Harris CD74HC123, CD74HCT123, 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.

Features
• Overriding Reset Terminates Output Pulse
• Triggering From the Leading or Trailing Edge
• Q and Q Buffered Outputs
• Separate Resets
• Wide Range of Output-Pulse Widths
• Schmitt Trigger on Both A and B Inputs
• Fanout (Over Temperature Range)
   - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
   - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• HC Types
   - 2V to 6V Operation
   - High Noise Immunity: NIL = 30%, NIH = 30%of VCC at VCC = 5V
• HCT Types
   - 4.5V to 5.5V Operation
   - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min)
   - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH

 

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