Behavioural mixed-signal modelTowerPro SG90servo_sg90
Servo SG90 (hobby servo)
Micro servo at 5 V: pulse width on SIG (every 20 ms) sets the angle – 0.544 ms = 0°, 2.4 ms = 180° (Arduino Servo default), speed 0.1 s / 60°. The arm rotates in the schematic.
Key data
- Category
- Modules
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- TowerPro SG90
- Reference prefix
- M
- Pins
- 3
- Land pattern
- PinHeader_1x03_P2.54mm_Vertical
Simulation model
A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.
- Model
- servo
- Supply pins
- VCC / GND
Pins 3
| Pin | Name | Use |
|---|---|---|
| GND | GNDGround pin | Ground (brown) |
| VCC | 5VSupply pin | 5 V supply (red): up to about 700 mA when stalled |
| SIG | SIGInput pin | Control pulse (orange): 1–2 ms every 20 ms from a PWM pin |
PCB
Connector / off-board
PinHeader_1x03_P2.54mm_Verticalservo connector 3-pin (GND brown, 5V red, SIG orange)