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Sensitivity: (180mV/A ~190mV/A )
This means IR is undetectable to the human eye – perfect for wireless communication
Operating frequency: 125 KHz
Best detection distance: 1cm
nonvolatile (NV) RAM for data storage
74HC90 (Decade, Divided by twelve AND binary counter- 4-BIT Binary Counter) 7476 Sensitivity: (180mV/A ~190mV/A )Introduction : 74HC90 (Decade, Divided by twelve AND binary counter 4 BIT Binary Counter) Each of these monolithic counters contains four master slave flip flops and additional gating to provide a divide by two counter and a three stage binary counter for which thecount cycle length is divide by five for the 74HS90. All of these counters have a gated zero reset and the 74HS90 also has gated set to nine inputs for use inBCD nines complement
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