74HC161 ( Presettable synchronous 4-bit binary counter-asynchronous reset) Micro SD Card Two holes for M4 bolts

Two holes for M4 bolts

thus no external antenna coil is needed

VCC:   Input voltage (3 : 9v)

the blades close

74HC161 ( Presettable synchronous 4-bit binary counter-asynchronous reset) Micro SD Card Two holes for M4 boltsIntroduction : 74HC161 is a synchronous presettable binary counter with an internal look head carry. Synchronous operation is provided by having all flip flops clocked simultaneously on the positive going edge of the clock (CP). The outputs (Q0 to Q3) of the counters may be preset HIGH or LOW. A LOW at the parallel enable input (PE) disables the counting action and causes the data at thedata inputs (D0 to D3) to be loaded into the counter on the