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74ABT899CQC Datasheet(PDF) 7 Page - Fairchild Semiconductor |
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74ABT899CQC Datasheet(HTML) 7 Page - Fairchild Semiconductor |
7 / 16 page 7 www.fairchildsemi.com Extended AC Electrical Characteristics (SOIC and PLCC Package) Note 9: This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase (i.e., all LOW-to- HIGH, HIGH-to-LOW, etc.). Note 10: This specification is guaranteed but not tested. The limits represent propagation delay with 250 pF load capacitors in place of the 50 pF load capac- itors in the standard AC load. This specification pertains to single output switching only. Note 11: This specification is guaranteed but not tested. The limits represent propagation delays for all paths described switching in phase (i.e., 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 12: The 3-STATE delay time is dominated by the RC network (500 Ω, 250 pF) on the output and has been excluded from the datasheet. Note 13: Not applicable for multiple output switching. Symbol Parameter TA = +25°CTA = −40°C to +85°CTA = −40°C to +85°C Units VCC = +5.0V VCC = 4.5V–5.5V VCC = 4.5V–5.5V CL = 50 pF CL = 250 pF CL = 250 pF 9 Outputs Switching 1 Output Switching 9 Outputs Switching (Note 9) (Note 10) (Note 11) Min Typ Max Min Max Min Max fTOGGLE Max Toggle Frequency 100 MHz tPLH Propagation Delay 1.5 6.2 2.0 7.2 2.5 9.5 ns tPHL An to Bn 1.5 6.2 2.0 7.2 2.5 9.5 tPLH Propagation Delay 1.5 6.8 2.0 8.0 2.5 10.0 ns tPHL APAR to BPAR 1.5 6.8 2.0 8.0 2.0 10.0 tPLH Propagation Delay 2.5 10.0 3.0 12.5 3.5 13.5 ns tPHL An, Bn to BPAR, APAR 2.5 10.0 3.0 12.5 3.5 13.5 tPLH Propagation Delay (Note 13) 3.0 12.0 (Note 13) ns tPHL An, Bn to ERRA, ERRB 3.0 12.0 tPLH Propagation Delay (Note 13) 2.0 9.0 (Note 13) ns tPHL APAR, BPAR to ERRA, ERRB 2.0 9.0 tPLH Propagation Delay (Note 13) 2.5 9.9 (Note 13) ns tPHL ODD/EVEN to APAR, BPAR 2.5 9.9 tPLH Propagation Delay (Note 13) 2.0 8.8 (Note 13) ns tPHL ODD/EVEN to ERRA, ERRB 2.0 8.8 tPLH Propagation Delay (Note 13) 2.0 9.5 (Note 13) ns tPHL SEL to APAR, BPAR 2.0 9.5 tPLH Propagation Delay 1.5 5.7 2.0 7.9 2.5 10.0 ns tPHL LEA, LEB to Bn, An 1.5 5.7 2.0 7.9 2.5 10.0 tPLH Propagation Delay 1.5 9.5 2.0 12.0 2.5 13.0 ns tPHL LEA, LEB to BPAR, APAR 1.5 9.5 2.0 12.0 2.5 13.0 tPLH Propagation Delay (Note 13) 2.0 11.5 (Note 13) ns tPHL LEA, LEB to ERRA, ERRB 2.0 11.5 tPZH Output enable time 1.5 7.0 2.0 8.5 2.5 10.5 tPZL GBA or GAB to An, 1.5 7.0 2.0 8.5 2.5 10.5 ns APAR or Bn, BPAR tPHZ Output disable time 1.0 6.5 tPLZ GBA or GAB to An, 1.0 6.5 (Note 12) (Note 12) ns APAR or Bn, BPAR |
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