Hello,

I'm just a hobbyist and not a professional.

I would like to know what the meaning is of
the hyphens or dashes in this datasheet and
also the commas and periods.

TIA

PJB.

 

Most people find these rather obvious/intuitive.

A hyphen/dash before a number means that it is negative.

A hyphen/dash that is the only thing in a box means that parameter is not supplied.

A comma separates things. So Vin (V) of "0,20" means either 0 V or 20 V. It's also used to separate a description from the symbol that represents it, such as "Input Low Voltage, V_IL Max."

A period is used either as a decimal point, such that 9.95 means 9 + 95/100, or to indicate an abbreviation, such that "Max." is an abbreviation of "Maximum".

Do you understand what a + sign or a - sign means?

 

Hyphen before a number means that the value is negative.
Period is the decimal place, for example, -6.8 means negative 6.8
Comma indicates the range of INPUT voltages, for example, 0,5 means LOW input voltage of 0V and HIGH input voltage of 5V.

Dash means that a value for that situation is not applicable or not available.

 

A comma separates things. So Vin (V) of "0,20" means either 0 V or 20 V. It's also used to separate a description from the symbol that represents it, such as "Input Low Voltage, V_IL Max."

Do you mean only two discrete values, either 0V or 20V, or somewhere inbetween ?

 

Do you mean only two discrete values, either 0V or 20V, or somewhere inbetween ?

Vin shown as 0,15 represent logic voltage levels of either 0v (logic low), or 15v (logic high)
VDD represents the supply voltage level.

 

Hi PJB,
Couple of datasheets that may be useful.

E

 

Do you mean only two discrete values, either 0V or 20V, or somewhere inbetween ?

The test conditions use either of those two values. Nothing in between.