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MM54C221J Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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MM54C221J Datasheet(HTML) 3 Page - National Semiconductor (TI) |
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3 / 6 page  AC Electrical Characteristics TA e 25 C CL e 50 pF unless otherwise noted Symbol Parameter Conditions Min Typ Max Units tpd A B Propagation Delay from Trigger VCC e 5V 250 500 ns Input (A B) to Output Q Q VCC e 10V 120 250 ns tpd CL Propagation Delay from Clear VCC e 5V 250 500 ns Input (CL) to Output Q Q VCC e 10V 120 250 ns tS Time Prior to Trigger Input (A B) VCC e 5V 150 50 ns that Clear must be Set VCC e 10V 60 20 ns tW(A B) Trigger Input (A B) Pulse Width VCC e 5V 150 50 ns VCC e 10V 70 30 ns tW(CL) Clear Input (CL) Pulse Width VCC e 5V 150 50 ns VCC e 10V 70 30 ns tW(OUT) QorQ Output Pulse Width VCC e 5V REXT e 10k 900 ns CEXT e 0pF VCC e 10V REXT e 10k 350 ns CEXT e 0pF VCC e 15V REXT e 10k 320 ns CEXT e 0pF VCC e 5V REXT e 10k 90 106 122 m s CEXT e 1000 pF (Figure 1) VCC e 10V REXT e 10k 90 10 11 m s CEXT e 1000 pF (Figure 1) VCC e 15V REXT e 10k 89 98 108 m s CEXT e 1000 pF (Figure 1) VCC e 5V REXT e 10k 900 1020 1200 m s CEXT e 01 mF (Figure 2) VCC e 10V REXT e 10k 900 1000 1100 m s CEXT e 01 mF (Figure 2) VCC e 15V REXT e 10k 900 990 1100 m s CEXT e 01 mF (Figure 2) RON ON Resistance of Transistor VCC e 5V (Note 4) 50 150 X between RCEXT to CEXT VCC e 10V (Note 4) 25 65 X VCC e 15V (Note 4) 167 45 X Output Duty Cycle R e 10k C e 1000 pF 90 % R e 10k C e 01 mF90 % (Note 5) CIN Input Capacitance RCEXT Input (Note 2) 15 25 pF Any Other Input (Note 2) 5 pF AC Parameters are guaranteed by DC correlated testing Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’ they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation Note 2 Capacitance is guaranteed by periodic testing Note 3 In Standby (Q e Logic ‘‘0’’) the power dissipated equals the leakage current plus VCC REXT Note 4 See AN-138 for detailed explanation RON Note 5 Maximum output duty cycle e REXT REXT a 1000 3 |
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