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74ABT541CSJX Fiches technique(PDF) 6 Page - Fairchild Semiconductor |
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74ABT541CSJX Fiches technique(HTML) 6 Page - Fairchild Semiconductor |
6 / 12 page ©1992 Fairchild Semiconductor Corporation www.fairchildsemi.com 74ABT541 Rev. 1.4 6 Skew SOIC package. Notes: 11. 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.) 12. These specifications guaranteed but not tested. The limits represent propagation delays with 250pF load capacitors in place of the 50pF load capacitors in the standard AC load. 13. 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 and/or HIGH-to-LOW (tOST). The specification is guaranteed but not tested. 14. 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. 15. Propagation delay variation for a given set of conditions (i.e., temperature and VCC) from device to device. This specification is guaranteed but not tested. Capacitance Note: 16. COUT is measured at frequency of f = 1 MHz, per MIL-STD-883, Method 3012. Symbol Parameter TA = –40°C to +85°C, VCC = 4.5V to 5.5V, CL = 50pF, 8 Outputs Switching(11) TA = –40°C to +85°C, VCC = 4.5V to 5.5V, CL = 250pF, 8 Outputs Switching(12) Units Max. Max. tOSHL (13) Pin to Pin Skew, HL Transitions 1.3 2.3 ns tOSLH (13) Pin to Pin Skew, LH Transitions 1.0 1.8 ns tPS (14) Duty Cycle, LH/HL Skew 2.0 3.5 ns tOST (13) Pin to Pin Skew, LH/HL Transitions 2.0 3.5 ns tPV (15) Device to Device Skew, LH/HL Transitions 2.0 3.5 ns Symbol Parameter Conditions TA = 25°C Typ. Units CIN Input Capacitance VCC = 0.0V 5.0 pF COUT (16) Output Capacitance VCC = 5.0V 9.0 pF |
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