Mechanical Dimensions & Land Pattern (SOIC-8-150mil)
Extracted from Datasheet & IPC-7351B NormalizedRecommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit SOIC-8-150mil | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — MCP4812T-E/SN (SOIC-8-150mil)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of MCP4812T-E/SN (SOIC-8-150mil)?
Manufactured by MICROCHIP, the MCP4812T-E/SN is housed in a SOIC-8-150mil package with 8 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 2.7V to 5.5V. Key pins include: 1 (VDD: Power Supply Input (VDD — 2.7V to 5.5V)), 2 (CS: Multiplexed I/O & Peripheral Pin CS (General)), 3 (SCK: Multiplexed I/O & Peripheral Pin SCK (SPI)), 4 (SDI: Multiplexed I/O & Peripheral Pin SDI (General)), 5 (LDAC: Multiplexed I/O & Peripheral Pin LDAC (General)), 6 (V OUTB: Multiplexed I/O & Peripheral Pin V OUTB (DAC)).
What are the IPC-7351B PCB Footprint dimensions for MCP4812T-E/SN?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), MCP4812T-E/SN (SOIC-8-150mil) has a nominal body envelope of 3.90 × 4.90 mm, pitch e = 1.27 mm, and 8 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for MCP4812T-E/SN?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for MCP4812T-E/SN (MICROCHIP, SOIC-8-150mil) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (8 pins) & MCP4812 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 2.7V to 5.5V domain (Max rating: 5.5V). |
| 2 | CS | Digital_IO | Signal terminal CS (I/O, 2.7V to 5.5V domain). Multiplexed alternate functions: CS. Supported peripheral buses: General. |
| 3 | SCK | Digital_IO | Signal terminal SCK (I/O, 2.7V to 5.5V domain). Multiplexed alternate functions: SCK. Supported peripheral buses: SPI. |
| 4 | SDI | Digital_IO | Signal terminal SDI (I/O, 2.7V to 5.5V domain). Multiplexed alternate functions: SDI. Supported peripheral buses: General. |
| 5 | LDAC | Analog | Signal terminal LDAC (Analog, 2.7V to 5.5V domain). Multiplexed alternate functions: LDAC. Supported peripheral buses: General. |
| 6 | V OUTB | Digital_IO | Signal terminal V OUTB (I/O, 2.7V to 5.5V domain). Multiplexed alternate functions: V OUTB. Supported peripheral buses: DAC. |
| 7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| 8 | V OUTA | Digital_IO | Signal terminal V OUTA (I/O, 2.7V to 5.5V domain). Multiplexed alternate functions: V OUTA. Supported peripheral buses: DAC. |










