View m54 74hc160 61 datasheet:

M54/74HC160/161 M54/74HC162/163 SYNCHRONOUS PRESETTABLE 4-BIT COUNTER .HIGH SPEED f = 63 MHz (TYP.) AT V =5V MAX CC .LOW POWER DISSIPATION I =4µA (MAX.) AT 25 °C CC .OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS .BALANCED PROPAGATION DELAYS B1R F1R t =t (Plastic Package) (Ceramic Package) PLH PHL .HIGH NOISE IMMUNITY V =V =28%V (MIN.) NIH NIL CC .WIDE OPERATING VOLTAGE RANGE V (OPR) = 2 V TO 6 V CC .PIN AND FUNCTION COMPATIBLE M1R C1R WITH 54/74LS160 ? 163 (Micro Package) (Chip Carrier) ORDER CODES : M54HCXXXF1R M74HCXXXM1R M74HCXXXB1R M74HCXXXC1R DESCRIPTION M54/74HC160 Decade, Asynchronous Clear M54/74HC161 Binary, Asynchronous Clear PIN CONNECTIONS (top view) M54/74HC162 Decade, Synchronous Clear M54/74HC163 Binary, Synchronous Clear The M54/74HC160, 161, 162 a