74VHC221ASJ Fairchild Semiconductor, 74VHC221ASJ Datasheet
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74VHC221ASJ
Specifications of 74VHC221ASJ
Related parts for 74VHC221ASJ
74VHC221ASJ Summary of contents
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... Pin and function compatible with 74HC221A Ordering Information Package Order Number Number 74VHC221AM M16A 74VHC221ASJ M16D 74VHC221AMTC MTC16 Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev ...
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... H HIGH Voltage Level L LOW Voltage Level HIGH-to-LOW Transition LOW-to-HIGH Transition X = Don’t Care ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 Block Diagrams Note A: Cx, Rx, Dx are external Capacitor, Resistor, and Diode, respectively. Note B: External clamping diode, Dx; External capacitor is charged to V state, i.e. when no trigger is applied. ...
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... System Diagram Timing Chart ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 3 www.fairchildsemi.com ...
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... Rx/Cx node N starts rising at a rate determined by the time constant of external capacitor Cx and resistor Rx. ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 Upon triggering, output Q becomes HIGH, following some delay time of the internal F/F and gates. It stays ...
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... Unused inputs must be held HIGH or LOW. They may not float. 2. The maximum allowable values of Cx and Rx are a function of the leakage of capacitor Cx, the leakage of the device, and leakage due to board layout and surface resistance. Susceptibility to externally induced noise signals may occur for Rx ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 Parameter (1) Parameter 1 M ...
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... Input Leakage 0–5.5 IN Current I Rx/Cx Terminal 5.5 IN Off-State Current I Quiescent Supply 5.5 CC Current (3) I Active—State 3.0 CC Supply Current 4.5 5.5 Note: 3. Per circuit. ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 T (V) Conditions Min. 1.50 0 –50µA 1 2.9 4.4 I –4mA 2.58 ...
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... I : Active Supply Current CC Duty Operating Requirement Symbol Parameter t (L) Minimum Trigger W t (H) Pulse Width W t (L) Minimum Clear Pulse Width W ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 (4) V (V) Conditions CC 3.3 ± 0.3 C 15pF L C 50pF L 5.0 ± 0.5 C 15pF L C 50pF L 3.3 ± 0.3 C ...
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... Device Characteristics Output Pulse Width Constant K-Supply Voltage (Typical) ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1 Characteristics (Typ.) wout x Input Equivalent Circuit 8 www.fairchildsemi.com ...
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... Physical Dimensions Dimensions are in millimeters unless otherwise noted. Figure 1. 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 Package Number M16A 9 www.fairchildsemi.com ...
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... Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure 2. 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 Package Number M16D 10 www.fairchildsemi.com ...
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... Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. 5.00±0.10 4.55 0.11 MTC16rev4 Figure 3. 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide ©1994 Fairchild Semiconductor Corporation 74VHC221A Rev. 1.2 0.65 4.4±0.1 1.45 Package Number MTC16 11 5.90 4 ...
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