SL74HC164

SL74HC164 8-Bit Serial-Input/Parallel-Output Shift Register High-Performance Silicon-Gate CMOS The SL74HC164 is identical in pinout to the LS/ALS164. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The SL74HC164 is an 8 -bit, serial-input to parallel-output shift register. Two serial data inputs, A1 and A2, are provided so that one input may be used as a data enable. Data is entered on each rising edge of the clock. The active-low asynchronous Reset overrides theClock and Serial Data inputs. 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 ORDERING INFORMATION SL74HC164N Plastic SL74HC164D SOIC TA = -55° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs Reset L H PIN 14 =VCC PIN 7 = GND H H Clock X A1 A2 X X X X H D D H Outputs QA QB ... QH L L ... L no change D QAn ... QGn D QAn ... QGn D = data input X = don’t care QAn - QGn = data shifted from the previous stage on a rising edge at the clock input. SLS System Logic Semiconductor SL74HC164 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 Stil...