View m74hct163 datasheet:

M74HCT163 SYNCHRONOUS PRESETTABLE 4-BIT COUNTER HIGH SPEED : fMAX = 50MHz (TYP.) at VCC = 4.5V LOW POWER DISSIPATION: ICC =4µA(MAX.) at TA=25°C SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) DIP SOP TSSOP BALANCED PROPAGATION DELAYS: tPLH ? tPHL COMPATIBLE WITH TTL OUTPUTS : VIH = 2V (MIN.) VIL = 0.8V (MAX) ORDER CODES PIN AND FUNCTION COMPATIBLE WITH PACKAGE TUBE T & R 74 SERIES 163 DIP M74HCT163B1R SOP M74HCT163M1R M74HCT163RM13TR DESCRIPTION TSSOP M74HCT163TTR The M74HCT163 is an high speed CMOS SYNCHRONOUS 4 BIT BINARY PRESETTABLE COUNTER fabricated with silicon gate C2MOS cascading of counters, which facilities easy technology. implementation of N-bit counters without using The CLOCK input is active on the rising edge. external gates. Bo