Behavioural mixed-signal model4x4 membrane keypadkeypad_4x4
Membrane keypad 4×4
Matrix keypad: each key connects a row R1–R4 with a column C1–C4 (~100 Ω trace). During simulation click keys in the schematic (hold to keep pressed). Read e.g. with the Keypad library (rows with pull-ups, columns LOW one after another).
Key data
- Category
- Passive
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- 4x4 membrane keypad
- Reference prefix
- SW
- Pins
- 8
- Land pattern
- PinHeader_1x08_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
- keypad
- Supply pins
- R1 / C1
Pins 8
| Pin | Name | Use |
|---|---|---|
| R1 | R1Passive pin | Row 1: scanned as an output (or input with pull-up) |
| R2 | R2Passive pin | Row 2 |
| R3 | R3Passive pin | Row 3 |
| R4 | R4Passive pin | Row 4 |
| C1 | C1Passive pin | Column 1: input with pull-up |
| C2 | C2Passive pin | Column 2: input with pull-up |
| C3 | C3Passive pin | Column 3: input with pull-up |
| C4 | C4Passive pin | Column 4: input with pull-up |
Parameters 1
Pressed key (1–16, 0 = none)
keyliveDefault0
PCB
Connector / off-board
PinHeader_1x08_P2.54mm_Verticalmembrane keypad ribbon on an 8-pin header, 2.54 mm (R1–R4, C1–C4) – check the ribbon order of your keypad