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74FCT621AT bảng dữ liệu(PDF) 2 Page - Integrated Device Technology |
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2 / 6 page INDUSTRIALTEMPERATURERANGE 2 IDT74FCT621T/AT FASTCMOSOCTALBUSTRANSCEIVER(OPENDRAIN) PIN CONFIGURATION Symbol Description Max Unit VTERM(2) Terminal Voltage with Respect to GND –0.5 to +7 V VTERM(3) Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V TSTG Storage Temperature –65 to +150 °C IOUT DC Output Current –60 to +120 mA ABSOLUTE MAXIMUM RATINGS(1) NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. No terminal voltage may exceed Vcc by +0.5V unless otherwise noted. 2. Inputs and Vcc terminals only. 3. Output and I/O terminals only. Symbol Parameter(1) Conditions Typ. Max. Unit CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance VOUT = 0V 8 12 pF CAPACITANCE (TA = +25°C, F = 1.0MHz) NOTE: 1. This parameter is measured at characterization but not tested. SOIC TOP VIEW 2 3 1 16 15 14 11 19 18 20 17 13 12 5 6 7 4 8 9 10 A2 A1 VCC A3 A6 A4 A5 A7 GND GBA B2 B8 B1 B3 B6 B4 B5 B7 GAB A8 PIN DESCRIPTION Pin Names Description GBA, GAB EnableInputs A1 – A8 AInputsorOpen-drainOutputs B1 – B8 BInputsorOpen-drainOutputs FUNCTION TABLE(1) EnableInputs GBA GAB Function L L B data to A bus H H A data to B bus H L OFF L H B data to A bus A data to B bus NOTE: 1. H = HIGH Voltage Level. L = LOW Voltage Level. OFF = HIGH if pull-up resistor is connected to Open-Drain output. |
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