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Part Name(s) : DM74LS122 DM74LS122M DM74LS122N National-Semiconductor
National ->Texas Instruments
Description : RETRIGGERABLE ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

The DM74LS122 is a RETRIGGERABLE monostable multivibrator featuring both positive AND negative edge triggering WITH COMPLEMENTARY OUTPUTS. An internal 10 kXtiming resistor is provided for design convenience minimizing component count AND layout problems. This device can be used WITH a single external capacitor.

Features
DC triggered from active-high transition or active-low transition inputs
RETRIGGERABLE to 100% duty cycle
Over-riding CLEAR terminates output pulse
Internal 10 kXtiming resistor
TTL, DTL compatible
Compensated for VCCAND temperature variations
Input clamp diodes

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Part Name(s) : DM74123 DM74123N Fairchild
Fairchild Semiconductor
Description : DUAL RETRIGGERABLE ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The DM74123 is a DUAL RETRIGGERABLE monostable multivibrator capable of generating output pulses from a few
nano-seconds to extremely long duration up to 100% duty cycle. Each device has three inputs permitting the choice of either leading-edge or trailing edge triggering. Pin (A) is an active-LOW transition trigger input AND pin (B) is an activeHIGH transition trigger input. A LOW at the CLEAR (CLR) input terminates the output pulse: which also inhibits triggering.

Features
■DC triggered from active-HIGH transition or active-LOW transition inputs
RETRIGGERABLE to 100% duty cycle
■Direct reset terminates output pulse
■Compensated for VCCAND temperature variations
■DTL, TTL compatible
■Input clamp diodes

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Part Name(s) : DM74LS123 DM74LS123M DM74LS123N National-Semiconductor
National ->Texas Instruments
Description : DUAL RETRIGGERABLE ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The DM74LS123 is a DUAL RETRIGGERABLE monostable multivibrator capable of generating output pulses from a few nano-seconds to extremely long duration up to 100% duty cycle. Each device has three inputs permitting the choice of either leading edge or trailing edge triggering. Pin (A) is an active-LOW transition trigger input AND pin (B) is an active HIGH transition trigger input.

Features
■ DC triggered from active-HIGH transition or active-LOW transition inputs
RETRIGGERABLE to 100% duty cycle
■ Compensated for VCC AND temperature variations
■ Triggerable from CLEAR input
■ DTL, TTL compatible
■ Input clamp diodes

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Part Name(s) : DM74LS123 DM74LS123CW DM74LS123M DM74LS123MX DM74LS123N DM74LS123NX DM74LS123SJ DM74LS123SJX Fairchild
Fairchild Semiconductor
Description : DUAL RETRIGGERABLE ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The DM74LS123 is a DUAL RETRIGGERABLE monostable multivibrator capable of generating output pulses from a few nano-seconds to extremely long duration up to 100% duty cycle. Each device has three inputs permitting the choice of either leading edge or trailing edge triggering. Pin (A) is an active-LOW transition trigger input AND pin (B) is an active HIGH transition trigger input.

Features
■ DC triggered from active-HIGH transition or active-LOW
transition inputs
RETRIGGERABLE to 100% duty cycle
■ Compensated for VCC AND temperature variations
■ Triggerable from CLEAR input
■ DTL, TTL compatible
■ Input clamp diodes

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Part Name(s) : 74LS221 DM74LS221 DM74LS221M DM74LS221MX DM74LS221N DM74LS221SJ DM74LS221SJX Fairchild
Fairchild Semiconductor
Description : DUAL Non-RETRIGGERABLE ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The DM74LS221 is a DUAL monostable multivibrator WITH Schmitt-trigger input. Each device has three inputs permitting the choice of either leading-edge or trailing-edge triggering. Pin (A) is an active-LOW trigger transition input AND pin (B) is an active-HIGH transition Schmitt-trigger input that allows jitter free triggering for inputs WITH transition rates as slow as 1 volt/second.

Features
■A DUAL, highly stable ONE-SHOT
■Compensated for VCCAND temperature variations
■Pin-out identical to DM74LS123 (Note 1)
■Output pulse width range from 30 ns to 70 seconds
■Hysteresis provided at (B) input for added noise immunity
■Direct reset terminates output pulse
■Triggerable from CLEAR input
■DTL, TTL compatible
■Input clamp diodes

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Part Name(s) : DM54123 DM54123J DM54123J-MIL DM54123W DM54123W-MIL DM74123 DM74123N M541 National-Semiconductor
National ->Texas Instruments
Description : DUAL RETRIGGERABLE ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The ’123 is a DUAL RETRIGGERABLE monostable multivibrator capable of generating output pulses from a few nano-seconds to extremely long duration up to 100% duty cycle.
Each device has three inputs permitting the choice of either leading-edge or trailing edge triggering. Pin (A) is an active low transition trigger input AND pin (B) is an active-high transition trigger input. A low at the CLEAR (CLR) input terminates the output pulse: which also inhibits triggering. An internal connection from CLR to the input gate makes it possible to trigger the circuit by a positive-going signal on CLR as shown in the truth table.
To obtain the best AND trouble free operation from this device please read the operating rules as well as the NSC one–shot application notes carefully AND observe recommendations.

Features
■ DC triggered from active-high transition or active-low transition inputs
RETRIGGERABLE to 100% duty cycle
■ Direct reset terminates output pulse
■ Compensated for VCC AND temperature variations
■ DTL, TTL compatible
■ Input clamp diodes

 

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Part Name(s) : HD74LS123 Hitachi
Hitachi -> Renesas Electronics
Description : DUAL RETRIGGERABLE Monostable Multivibrators (WITH CLEAR)

DUAL RETRIGGERABLE Monostable Multivibrators (WITH CLEAR)

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Part Name(s) : 74121 DM74121 DM74121N Fairchild
Fairchild Semiconductor
Description : ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The DM74121 is a monostable multivibrator featuring both positive AND negative edge triggering WITH COMPLEMENTARY OUTPUTS. An internal 2kΩtiming resistor is provided for design convenience minimizing component count AND layout problems. this device can be used WITH a single exter
nal capacitor. Inputs (A) are active-LOW trigger transition inputs AND input (B) is AND active-HIGH transition Schmitt trigger input that allows jitter-free triggering from inputs WITH transition rates as slow as 1 volt/second. A high immunity to VCCnoise of typically 1.5V is also provided by internal
circuitry at the input stage.To obtain optimum AND trouble free operation please read operating rules AND ONE-SHOT application notes carefully AND observe recommendations.

Features
■ Triggered from active-HIGH transition or active-LOW transition inputs
■ Variable pulse width from 30 ns to 28 seconds
■ Jitter free Schmitt-trigger input
■ Excellent noise immunity typically 1.2V
■ Stable pulse width up to 90% duty cycle
■ TTL, DTL compatible
■ Compensated for VCCAND temperature variations
■ Input clamp diodes

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Part Name(s) : DM54107 DM54107J National-Semiconductor
National ->Texas Instruments
Description : DUAL Master-Slave J-K FLIP-FLOPS WITH CLEAR AND COMPLEMENTARY OUTPUTS

DUAL Master-Slave J-K FLIP-FLOPS WITH CLEAR AND COMPLEMENTARY OUTPUTS

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Part Name(s) : DM74121CW Fairchild
Fairchild Semiconductor
Description : ONE-SHOT WITH CLEAR AND COMPLEMENTARY OUTPUTS

General Description
The DM74121 is a monostable multivibrator featuring both positive AND negative edge triggering WITH COMPLEMENTARY OUTPUTS.
   
Features
■ Triggered from active-HIGH transition or active-LOW
    transition inputs
■ Variable pulse width from 30 ns to 28 seconds
■ Jitter free Schmitt-trigger input
■ Excellent noise immunity typically 1.2V
■ Stable pulse width up to 90% duty cycle
■ TTL, DTL compatible
■ Compensated for VCC AND temperature variations
■ Input clamp diodes
   

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