# Part parameters for logic family

| 74HC | 4000B
--- | --- | ---
Supply voltage (VDD) | 2 - 6 V | 3 - 15 V
Output slope (ohms) | 50 ohms | 500 ohms
Output current (for 0.4V drop on output (VDD = 5 V)) | 8 mA | 0.8 mA
Maximum voltage (for '0' input) | 30% of V~DD~ | 30% of V~DD~
Minimum voltage (for '1' input) | 70% of V~DD~ | 70% of V~DD~
Maximum output current | 50 mA | 50 mA
Minimum input voltage | -1 V | -1 V
Maximum input voltage | V~DD~ + 1 V | V~DD~ + 1 V

## See also:

- Logic family parts
- Tips for using logic family parts