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MC74F657BDW Datasheet(PDF) 4 Page - Motorola, Inc |
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MC74F657BDW Datasheet(HTML) 4 Page - Motorola, Inc |
4 / 5 page 4-250 FAST AND LS TTL DATA MC74F657A, B F657A AC ELECTRICAL CHARACTERISTICS Symbol Parameter 74F 74F Unit Symbol Parameter TA = +25°C VCC = +5.0 V CL = 50 pF TA = 0°C to +70°C VCC = +5.0 V ± 10% CL = 50 pF Unit Symbol Parameter Min Typ Max Min Max Unit tPLH tPHL Propagation Delay 2.0 7.0 2.0 7.5 ns PLH tPHL An to Bn or Bn to An 2.0 7.0 2.0 7.5 ns tPLH Propagation Delay 6.0 13 5.5 14 ns tPHL An to PARITY 6.5 13 6.5 14 ns tPLH Propagation Delay 4.5 10.5 4.5 11 ns tPHL EVEN/ODD to PARITY, ERROR 4.5 10.5 4.5 11.5 ns tPLH Propagation Delay 7.0 18 6.5 19 ns tPHL Bn to ERROR 7.0 18 6.5 19 ns tPLH Propagation Delay 8.0 14 7.0 15 ns tPHL PARITY to ERROR 7.0 14 7.0 15 ns tPZH Output Enable Time 3.0 8.0 3.0 9.0 ns tPZL to HIGH or LOW Level 4.0 9.0 4.0 10 ns tPHZ tPLZ Output Disable Time 2.0 7.5 2.0 8.0 ns PHZ tPLZ from HIGH or LOW Level 2.0 6.0 2.0 6.5 ns F657B AC ELECTRICAL CHARACTERISTICS Symbol Parameter 74F 74F Unit Symbol Parameter TA = +25°C VCC = +5.0 V CL = 50 pF TA = 0°C to +70°C VCC = +5.0 V ± 10% CL = 50 pF Unit Symbol Parameter Min Typ Max Min Max Unit tPLH Propagation Delay 2.0 6.0 2.0 6.5 ns tPHL An to Bn or Bn to An 2.0 6.0 2.0 6.5 ns tPLH Propagation Delay 4.5 11.5 4.5 13 ns tPHL An to PARITY 4.5 11.5 4.5 13 ns tPLH Propagation Delay 2.0 7.5 2.0 8.5 ns tPHL EVEN/ODD to PARITY, ERROR 2.0 7.5 2.0 8.5 ns tPLH Propagation Delay 4.0 15 3.5 16 ns tPHL Bn to ERROR 4.0 15 3.5 16 ns tPLH Propagation Delay 5.0 11 4.0 12 ns tPHL PARITY to ERROR 5.0 11 4.0 12 ns tPZH Output Enable Time 2.0 7.0 2.0 8.0 ns tPZL to HIGH or LOW Level 2.0 7.0 2.0 8.0 ns tPHZ tPLZ Output Disable Time 2.0 6.0 2.0 6.5 ns PHZ tPLZ from HIGH or LOW Level 2.0 6.0 2.0 6.5 ns |
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