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KK74HC623A bảng dữ liệu(PDF) 1 Page - KODENSHI_AUK CORP. |
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1 / 6 page TECHNICAL DATA KK74HC623A Octal 3-State Noninverting Bus Transceiver High-Performance Silicon-Gate CMOS ORDERING INFORMATION KK74HC623AN Plastic KK74HC623ADW SOIC TA = -55° to 125° C for all packages The KK74HC623A is identical in pinout to the LS/ALS623. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The KK74HC623A is a 3-state noninverting transceiver that is used for 2-way communication between data buses. Two separate enables are available. The enable for bus A to B is active-high, the enable for bus B to A is active-low. • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2.0 to 6.0 V • Low Input Current: 1.0 µA • High Noise Immunity Characteristic of CMOS Devices PIN ASSIGNMENT LOGIC DIAGRAM PIN 20=VCC PIN 10 = GND FUNCTION TABLE Control Inputs Output Enable Direction Operation L L Data Transmitted from Bus B to Bus A L H Data Transmitted from Bus A to Bus B H L Buses Isolated L H (High Impedance State) 1 |
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