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Technical Specifications
Parameters and characteristics for this part
| Specification | SN74LS423NG4 |
|---|---|
| Current - Output High, Low [custom] | 400 µA |
| Current - Output High, Low [custom] | 8 mA |
| Independent Circuits | 2 |
| Logic Type | Monostable |
| Mounting Type | Through Hole |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 0.3 in |
| Package / Case | 16-DIP |
| Package / Case | 7.62 mm |
| Propagation Delay | 28 ns |
| Schmitt Trigger Input | False |
| Supplier Device Package | 16-PDIP |
| Voltage - Supply [Max] | 5.25 V |
| Voltage - Supply [Min] | 4.75 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 200 | $ 2.71 | |
Description
General part information
SN74LS423 Series
The 'LS422 and 'LS423 are identical to 'LS122 and 'LS123 except they cannot be triggered via clear.
These d-c triggered multivibrators feature output-pulse-width control by three methods. The basic pulse time is programmed by selection of external resistance and capacitance values (see typical application data). The 'LS422 contains an internal timing resistor that allows the circuits to be used with only an external capacitor, if so desired. 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.
The 'LS422 and 'LS423 have enough Schmitt hysteresis to ensure jitter-free triggering from the B input with transition rates as slow as 0.1 millivolt per nanosecond. The 'LS422 Rintis nominally 10 k ohms.
Documents
Technical documentation and resources
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