KK74ACT643 Datasheet | Kodenshi AUK Group

TECHNICAL DATA .. Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS The KK74ACT643 is identical in pinout to the LS/ALS643, HC/HCT643. The KK74ACT623 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. The KK74ACT643 is a 3-state transceiver that is used for 2-way asynchronous munication between data buses. The device has an active-low Output Enable pin, which is used to place the I/O ports into high-impedance states. The Direction control determines whether data flows from A to B or from B to A. - TTL/NMOS patible Input Levels - Outputs Directly Interface to CMOS, NMOS, and TTL - Operating Voltage Range: 4.5 to 5.5 V - Low Input Current: 1.0 µA; 0.1 µA @ 25°C - Outputs Source/Sink 24 m A ORDERING INFORMATION KK74ACT643N Plastic KK74ACT643DW SOIC TA = -40° to 85° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Control Inputs Output Enable L PIN 20=VCC PIN 10 = GND Direction L Operation Data Transmitted from Bus B to Bus A Data Transmitted from Bus A to Bus B (inverted) Buses Isolated (High Impedance State) X = don’t care .. MAXIMUM RATINGS- Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL - Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.5 to +7.0 -0.5 to VCC +0.5 -0.5 to VCC +0.5 ±20 ±50 ±50 750 500 -65 to +150 260 Unit V V V m A m A m A m W °C °C Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Remended Operating Conditions. +Derating - Plastic DIP: - 10 m W/°C from 65° to 125°C SOIC Package: : - 7 m W/°C from 65° to 125°C REMENDED OPERATING...