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54ABT373CMTCMX Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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54ABT373CMTCMX Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 16 page Extended AC Electrical Characteristics (SOIC package) 74ABT 74ABT 74ABT TA eb40 Cto a85 C TA eb40 Cto a85 C TA eb40 Cto a85 C VCC e 45V to 55V VCC e 45V to 55V VCC e 45V to 55V Symbol Parameter CL e 50 pF CL e 250 pF CL e 250 pF Units 8 Outputs Switching (Note 5) 8 Outputs Switching (Note 4) (Note 6) Min Max Min Max Min Max tPLH Propagation Delay 15 52 20 68 20 90 ns tPHL Dn to On 15 52 20 68 20 90 tPLH Propagation Delay 15 55 20 75 20 95 ns tPHL LE to On 15 55 20 75 20 95 tPZH Output Enable Time 15 62 20 80 20 105 ns tPZL 15 62 20 80 20 105 tPHZ Output Disable Time 10 55 (Note 7) (Note 7) ns tPZL 10 55 Note 4 This specification is guaranteed but not tested The limits apply to propagation delays for all paths described switching in phase (ie all LOW-to-HIGH HIGH-to-LOW etc) Note 5 This specification is guaranteed but not tested The limits represent propagation delay with 250 pF load capacitors in plce of the 50 pF load capacitors in the standard AC load This specificaiton pertains to single output switching only Note 6 This specification is guaranteed but not tested The limits represent propagation delays for all paths described switching in phase (ie all LOW-to-HIGH HIGH-to-LOW etc) with 250 pF load capacitors in place of the 50 pF load capacitors in the standard AC load Note 7 The TRI-STATE delay times are dominated by the RC network (500X 250 pF) on the output and has been excluded from the datasheet Skew Symbol Parameter 74ABT 74ABT Units TA eb40 Cto a85 CTA eb40 Cto a85 C VCC e 45V–55V VCC e 45V–55V CL e 50 pF CL e 250 pF 8 Outputs Switching 8 Outputs Switching (Note 3) (Note 4) Max Max tOSHL Pin to Pin Skew 10 15 ns (Note 1) HL Transitions tOSLH Pin to Pin Skew 10 15 ns (Note 1) LH Transitions tPS Duty Cycle 14 35 ns (Note 5) LH–HL Skew tOST Pin to Pin Skew 15 39 ns (Note 1) LHHL Transitions tPV Device to Device Skew 20 40 ns (Note 2) LHHL Transitions Note 1 Skew is defined as the absolute value of the difference between the actual propagation delays for any two separate outputs of the same device The specification applies to any outputs switching HIGH to LOW (tOSHL) LOW to HIGH (tOSLH) or any combination switching LOW to HIGH andor HIGH to LOW (tOST) This specification is guaranteed but not tested Note 2 Propagation delay variation for a given set of conditions (ie temperature and VCC) from device to device This specification is guaranteed but not tested Note 3 This specification is guaranteed but not tested The limits apply to propagation delays for all paths described switching in phase (ie all LOW-to-HIGH HIGH-to-LOW etc) Note 4 This specification is guaranteed but not tested The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load capacitors in the standard AC load Note 5 This describes the difference between the delay of the LOW-to-HIGH and the HIGH-to-LOW transition on the same pin It is measured across all the outputs (drivers) on the same chip the worst (largest delta) number is the guaranteed specification This specification is guaranteed but not tested 5 |
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