View m74hc193 datasheet:

M74HC193 SYNCHRONOUS UP/DOWN BINARY COUNTER HIGH SPEED : fMAX = 55 MHz (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC =4µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.) DIP SOP TSSOP SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ? tPHL ORDER CODES WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R VCC (OPR) = 2V to 6V DIP M74HC193B1R PIN AND FUNCTION COMPATIBLE WITH SOP M74HC193M1R M74HC193RM13TR 74 SERIES 193 TSSOP M74HC193TTR DESCRIPTION The M74HC193 is an high speed CMOS the counter can also be cleared. This is SYNCRONOUS UP/DOWN BINARY accomplished by inputting a high on the clear COUNTERS fabricated with silicon gate C2MOS input. All 4 internal stages are set to low technology. indepe