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74FR16245SSC Datasheet(PDF) 5 Page - Rochester Electronics |
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74FR16245SSC Datasheet(HTML) 5 Page - Rochester Electronics |
5 / 5 page 74FR16245 Specification Number 74FR16245-CI(F) Rev A Page 5 of 5 www.fairchildsemi.com 4 AC Electrical Characteristics Extended AC Characteristics Note 3: Skew is defined as the absolute value of the difference between the actual propagation delays for any two outputs of the same device. The specifi- cation applies to any outputs switching HIGH-to-LOW (tOSHL) LOW-to-HIGH (tOSLH), or HIGH-to-LOW and/or LOW-to-HIGH (tOST). Specifications guaran- teed with all outputs switching in phase. Note 4: 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, 3-STATE-to-HIGH, etc. Note 5: These specifications 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. This specification pertains to single output switching only. Symbol Parameter TA = +25°CTA = 0°C to +70°C Unit VCC = +5.0V VCC = +5.0V CL = 50 pF CL = 50 pF Min Typ Max Min Max tPLH Propagation Delay 1.3 2.7 4.3 1.3 4.3 ns tPHL An to Bn or Bn to An 1.3 2.2 4.3 1.3 4.3 tPZH Output Enable Time 3.9 6.9 13.9 3.9 13.9 ns tPZL 3.9 9.7 13.9 3.9 13.9 tPHZ Output Disable Time 1.8 3.9 6.3 1.8 6.3 ns tPLZ 1.8 4.4 6.3 1.8 6.3 Symbol Parameter TA = 0°C to +70°CTA = 0°C to +70°C Unit VCC = +5.0V VCC = +5.0V CL = 50 pF CL = 250 pF 16 Outputs Switching (Note 4) (Note 5) Min Max Min Max tPLH Propagation Delay 1.3 5.8 3.2 8.2 ns tPHL An to Bn or Bn to An 1.3 5.8 3.2 8.2 tPZH Output Enable Time 3.9 14.6 ns tPZL 3.9 14.6 tPHZ Output Disable Time 1.8 6.3 ns tPLZ 1.8 6.3 tOSHL Pin-to-Pin Skew 1.2 ns (Note 3) for HL Transitions tOSLH Pin-to-Pin Skew 2.2 ns (Note 3) for LH Transitions tOST Pin-to-Pin Skew 2.5 ns (Note 3) for HL/LH Transitions Rochester Electronics guarantees performance of its semiconductor products to the original OEM specifications. “Typical” values are for reference purposes only. Certain minimum or maximum ratings may be based on product characterization, design, simulation, or sample testing. Rochester Electronics reserves the right to make changes without further notice to any specification herein. |
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