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signal
Because input impedance of 74HC4051 low enough to loading output of Vacuum source
Use JFET input Op-Amp as buffer amplifier connect between Vacuum source and 74 HC4051
LDO question
data from https://focus.ti.com/docs/prod/folders/print/tps71533-q1.html
Iout(Max)(A) 0.05
Iq(Typ)(mA) 0.0032
Obviosly you can draw current up to 50 mA
"What does it mean by Low 3.2-mA Quiescent Current at 50 mA?"
Actual 3.2 uA it meant if yor load consume current 50 mA, input...
I guess it will be counted for that particular location only. You can test by write unuse location (1 byte for test) with 0xAA and 0x55 and write program to count write cycles. Write to EEPROM and read for compare if read not equal write. After approximately 1 Million cycles some bit in this...
A binary to two-digit BCD converter
Input = 7 bit,
Binary count = 00000000-1100011
Output Required = 4Bit + 4Bit (=8 bits for two digit)
Output count = 00,01,02,03,.....99
Bits need = 100*8 = 800 bits
Use ROM is 2^7 x 8 = 1024 bits,
Only implement in 800 bits and 240 bits is unusable (28 Address)
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