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KK74ACT643

Part Number	KK74ACT643
Manufacturer	KODENSHI KOREA
Description	Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS
Published	Apr 10, 2010
Detailed Description	TECHNICAL DATA www.DataSheet4U.com KK74ACT643 Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS The KK74ACT6...
Datasheet	KK74ACT643 PDF File

Overview

TECHNICAL DATA www.
DataSheet4U.
com KK74ACT643 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 communication 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 Compatible 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 mA 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) L H H X X = don’t care 1 www.
DataSheet4U.
com KK74ACT643 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 mA mA mA mW °C °C Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C SOIC Package: : - 7 mW/°...

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