Presettable Counters
SL74HCT163
Presettable Counters
High-Performance Silicon-Gate CMOS
The SL74HCT163 is identical in pinout to the LS/ALS1...
Description
SL74HCT163
Presettable Counters
High-Performance Silicon-Gate CMOS
The SL74HCT163 is identical in pinout to the LS/ALS163. The SL74HCT163 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. The SL74HCT163 is programmable 4-bit synchronous counter that feature parallel Load, synchronous Reset, a Carry Output for cascading and count-enable controls. The SL74HCT163 is binary counter with synchronous 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
ORDERING INFORMATION SL74HCT163N Plastic SL74HCT163D SOIC TA = -55° to 125° C for all packages
LOGIC DIAGRAM PIN ASSIGNMENT
PIN 16 =VCC PIN 8 = GND Inputs Reset L H H H H X Load X L H H H X Enable P X X X L H X
FUNCTION TABLE
Outputs Enable T X X L X H X Clock 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
No change No change Count up No change
X=don’t care P0,P1,P2,P3 = logic level of Data inputs Ripple Carry Out = Enable T Q0 Q1 Q2 Q3
SLS
System Logic Semiconductor
SL74HCT163
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 Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Stor...
Similar Datasheet