How much (mA) is accepted as output current?
It is defined as the output current IOUT in absolute maximum ratings. It is the maximum current per output.
The following table shows the output current IOUT and power source/GND current Icc of absolute maximum ratings of 74xxx244 type. The value of the power source/GND current ICC/GND is the maximum current per IC. The total current of 8 outputs must not exceed ICC/GND.
| item | symbol (unit) |
series | |||||
|---|---|---|---|---|---|---|---|
| High speed | Advance | 5V logic 3.3V low speed |
low voltage low speed | low voltage middle speed | low voltage high speed | ||
| TC74HC | TC74AC | TC74VHC | TC74LVX | TC74LCX | TC74VCX | ||
| output current | IOUT (mA) |
±35 | ±50 | ±25 | ±25 | ±50 | ±50 |
| Power source/GND current | ICC/GND (mA) |
±75 | ±100 | ±75 | ±75 | ±100 | ±100 |