IN74ACT161

TECHNICAL DATA IN74ACT161 Presettable Counter High-Speed Silicon-Gate CMOS The IN74ACT161 is identical in pinout to the LS/ALS161, HC/HCT161. The IN74ACT161 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS Inputs. The IN74ACT161 is programmable 4-bit synchronous modulo-16 counter that feature parallel Load, asynchronous Reset, a Carry Output for cascading and count-enable controls. The IN74ACT161 is binary counter with asynchronous Reset. 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 IN74ACT161N Plastic IN74ACT161D SOIC TA = -40° to 85° C for all packages LOGIC DIAGRAM PIN ASSIGNMENT PIN 16 =VCC PIN 8 = GND Inputs Reset L H H H H H Load X L Enable P X X X L H X FUNCTION TABLE Outputs Enable T X X L X H X Clock X Q0 L P0 Q1 L P1 Q2 L P2 Q3 L P3 Function Reset to “0” Preset Data No count No count Count No count w w w .d e e h s a t a X=don’t care P0,P1,P2,P3 = logic level of Data inputs Ripple Carry Out = Enable T Q0 Q1 Q2 Q3 . u t4 m o c H H H X No change No change Count up No change 1 www.DataSheet4U.com IN74ACT161 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/S...