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LTC491 Fiches technique(PDF) 3 Page - Linear Technology |
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LTC491 Fiches technique(HTML) 3 Page - Linear Technology |
3 / 12 page 3 LTC491 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS tPLH Driver Input to Output RDIFF = 54Ω, CL1 = CL2 = 100pF q 10 30 50 ns tPHL Driver Input to Output q 10 30 50 ns tSKEW Driver Output to Output q 5ns tr, tf Driver Rise or Fall Time q 515 25 ns tZH Driver Enable to Output High CL = 100pF (Figures 4, 6) S2 Closed q 40 70 ns tZL Driver Enable to Output Low CL = 100pF (Figures 4, 6) S1 Closed q 40 70 ns tLZ Driver Disable Time From Low CL = 15pF (Figures 4, 6) S1 Closed q 40 70 ns tHZ Driver Disable Time From High CL = 15pF (Figures 4, 6) S2 Closed q 40 70 ns tPLH Receiver Input to Output RDIFF = 54Ω, CL1 = CL2 = 100pF q 40 70 150 ns tPHL Receiver Input to Output q 40 70 150 ns tSKD tPLH – tPHL Differential Receiver Skew q 13 ns tZL Receiver Enable to Output Low CL = 15pF (Figures 3, 8) S1 Closed q 20 50 ns tZH Receiver Enable to Output High CL = 15pF (Figures 3, 8) S2 Closed q 20 50 ns tLZ Receiver Disable From Low CL = 15pF (Figures 3, 8) S1 Closed q 20 50 ns tHZ Receiver Disable From High CL = 15pF (Figures 3, 8) S2 Closed q 20 50 ns S GC C HARA TERISTICS WITCHI VCC = 5V ±5% (Figures 2, 5) (Figures 2, 7) Note 2: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. Note 3: All typicals are given for VCC = 5V and Temperature = 25°C. The q denotes specifications which apply over the full operating temperature range. Note 1: “Absolute Maximum Ratings” are those beyond which the safety of the device cannot be guaranteed. NC (Pin 1): Not Connected. R (Pin 2): Receiver output. If the receiver output is enabled (REB low), then if A > B by 200mV, R will be high. If A < B by 200mV, then R will be low. REB (Pin 3): Receiver output enable. A low enables the receiver output, R. A high input forces the receiver output into a high impedance state. DE (Pin 4): Driver output enable. A high on DE enables the driver outputs, A and B. A low input forces the driver outputs into a high impedance state. D (Pin 5): Driver input. If the driver outputs are enabled (DE high), then A low on D forces the driver outputs A low and B high. A high on D will force A high and B low. GND (Pin 6): Ground Connection. GND (Pin 7): Ground Connection. NC (Pin 8): Not Connected. Y (Pin 9): Driver output. Z (Pin 10): Driver output. B (Pin 11): Receiver input. A (Pin 12): Receiver input. NC (Pin 13): Not Connected. VCC (Pin 14): Positive supply; 4.75V ≤ VCC ≤ 5.25V. PI FU C S TI |
Numéro de pièce similaire - LTC491 |
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Description similaire - LTC491 |
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