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MC10137 Arkusz danych(PDF) 5 Page - Motorola, Inc |
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MC10137 Arkusz danych(HTML) 5 Page - Motorola, Inc |
5 / 6 page MC10137 3–39 MOTOROLA MECL Data DL122 — Rev 6 Clock Input Q D or S C Clock Q Output SWITCHING TIME TEST CIRCUIT AND WAVEFORMS @ 25 °C (a) is the minimum time to wait after the counter has been enabled to clock it. (b) is the minimum time before the counter has been disabled that it may be clocked. (c) is the minimum time before the counter is enabled that a clock pulse may be applied with no effect on the state of the counter. (d) is the minimum time to wait after the counter is disabled that a clock pulse may be applied with no effect in the state of the counter. (b) and (c) may be negative numbers. Cin TPout Coax Cout Q3 Q2 Q1 Q0 C D0 D1 D2 D3 S1 S2 Vout Vin Coax TPin 16 25 µF 1 0.1 µF 8 VEE = –3.2 Vdc VCC1 = VCC2 = +2.0 Vdc 0.1 µF tsetup L thold L 50% thold H tsetup H 50% 50% tC+Q+ tQ+ 80% 50% 20% tQ– tC+Q– +0.31 V +1.11 V +0.31 V +1.11 V 50-ohm termination to ground lo- cated in each scope channel input. All input and output cables to the scope are equal lengths of 50-ohm coaxial cable. Wire length should be < 1/4 inch from TPin to input pin and TPout to output pin. Unused outputs are connected to a 50-ohm resistor to ground. NOTE: tsetup is the minimum time before the positive transition of the clock pulse (C) that information must be present at the input D or S. thold is the minimum time after the positive transition of the clock pulse (C) that information must remain unchanged at the input D or S. Input Pulse t+ = t– = 2.0 ±0.2 ns (20 to 80%) Clock Carry in (c) (d) Clock Carry In (a) (b) |
Podobny numer części - MC10137 |
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Podobny opis - MC10137 |
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