Mechanical Dimensions & Land Pattern (WFBGA-84)
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 WFBGA-84 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — CEC1712H-S2-I/SX (WFBGA-84)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of CEC1712H-S2-I/SX (WFBGA-84)?
Manufactured by MICROCHIP, the CEC1712H-S2-I/SX is housed in a WFBGA-84 package with 84 pins and a 0.65 mm lead pitch. Key pins include: A1 (VCI OUT/GPIO250_: Multiplexed I/O & Peripheral Pin VCI OUT/GPIO250_ (General)), A2 (XTAL2: Multiplexed I/O & Peripheral Pin XTAL2 (RTC/CLK)), A3 (GPIO050/ICT0_TACH0: Multiplexed I/O & Peripheral Pin GPIO050/ICT0_TACH0 (General)), A4 (XTAL1: Multiplexed I/O & Peripheral Pin XTAL1 (RTC/CLK)), A5 (VCI IN3#/GPIO000_: Multiplexed I/O & Peripheral Pin VCI IN3#/GPIO000_ (General)), A6 (IOA6: General Purpose Digital I/O Pin IOA6).
What are the IPC-7351B PCB Footprint dimensions for CEC1712H-S2-I/SX?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), CEC1712H-S2-I/SX (WFBGA-84) has a nominal body envelope of 7.00 × 7.00 mm, pitch e = 0.65 mm, and 84 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for CEC1712H-S2-I/SX?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for CEC1712H-S2-I/SX (MICROCHIP, WFBGA-84) 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 (84 pins) & CEC1712 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | VCI OUT/GPIO250_ | Digital_IO | Signal terminal VCI OUT/GPIO250_ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI OUT/GPIO250_. Supported peripheral buses: General. |
| A2 | XTAL2 | Digital_IO | Signal terminal XTAL2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTAL2. Supported peripheral buses: RTC/CLK. |
| A3 | GPIO050/ICT0_TACH0 | Digital_IO | Signal terminal GPIO050/ICT0_TACH0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO050/ICT0_TACH0. Supported peripheral buses: General. |
| A4 | XTAL1 | Digital_IO | Signal terminal XTAL1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTAL1. Supported peripheral buses: RTC/CLK. |
| A5 | VCI IN3#/GPIO000_ | Digital_IO | Signal terminal VCI IN3#/GPIO000_ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI IN3#/GPIO000_. Supported peripheral buses: General. |
| A6 | IOA6 | Digital_IO | General Purpose Digital I/O Pin IOA6 |
| A7 | IOA7 | Digital_IO | General Purpose Digital I/O Pin IOA7 |
| A8 | GPIO004/I2C00_SCL | Digital_IO | Signal terminal GPIO004/I2C00_SCL (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO004/I2C00_SCL. Supported peripheral buses: I2C. |
| A9 | GPIO132/I2C06_SDA | Digital_IO | Signal terminal GPIO132/I2C06_SDA (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO132/I2C06_SDA. Supported peripheral buses: I2C. |
| A10 | GPIO125/PVT_CLK | Digital_IO | Signal terminal GPIO125/PVT_CLK (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO125/PVT_CLK. Supported peripheral buses: General. |
| B1 | BGPO0/GPIO253 | Digital_IO | Signal terminal BGPO0/GPIO253 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO0/GPIO253. Supported peripheral buses: General. |
| B2 | GPIO051/ICT1_TACH1 | Digital_IO | Signal terminal GPIO051/ICT1_TACH1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO051/ICT1_TACH1. Supported peripheral buses: General. |
| B3 | IOB3 | Digital_IO | General Purpose Digital I/O Pin IOB3 |
| B4 | VCI IN0#/GPIO163_ | Digital_IO | Signal terminal VCI IN0#/GPIO163_ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI IN0#/GPIO163_. Supported peripheral buses: General. |
| B5 | GPIO003/I2C00_SDA | Digital_IO | Signal terminal GPIO003/I2C00_SDA (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO003/I2C00_SDA. Supported peripheral buses: I2C. |
| B6 | IOB6 | Digital_IO | General Purpose Digital I/O Pin IOB6 |
| B7 | IOB7 | Digital_IO | General Purpose Digital I/O Pin IOB7 |
| B8 | IOB8 | Digital_IO | General Purpose Digital I/O Pin IOB8 |
| B9 | GPIO157/LED1 | Digital_IO | Signal terminal GPIO157/LED1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO157/LED1. Supported peripheral buses: General. |
| B10 | GPIO122/PVT_IO1 | Digital_IO | Signal terminal GPIO122/PVT_IO1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO122/PVT_IO1. Supported peripheral buses: General. |
| C1 | VTR_PLL | Digital_IO | Signal terminal VTR_PLL (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VTR_PLL. Supported peripheral buses: General. |
| C2 | IOC2 | Digital_IO | General Purpose Digital I/O Pin IOC2 |
| C5 | IOC5 | Digital_IO | General Purpose Digital I/O Pin IOC5 |
| C6 | GPIO127 | Digital_IO | Signal terminal GPIO127 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO127. Supported peripheral buses: General. |
| C9 | GPIO046/ICT11 | Digital_IO | Signal terminal GPIO046/ICT11 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO046/ICT11. Supported peripheral buses: General. |
| C10 | GPIO124/PVT CS#/ICT12_ | Digital_IO | Signal terminal GPIO124/PVT CS#/ICT12_ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO124/PVT CS#/ICT12_. Supported peripheral buses: General. |
| D1 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| D2 | nRESET_IN | Digital_IO | Active-low hardware reset terminal (nRESET_IN): pulling this pin Low resets the processor core and peripherals. |
| D4 | VSS_ANALOG | GND | 0V electrical ground return terminal (VSS_ANALOG) for internal core logic, I/O drivers, and analog sub-blocks. |
| D5 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| D6 | IOD6 | Digital_IO | General Purpose Digital I/O Pin IOD6 |
| D7 | GPIO156/LED0 | Digital_IO | Signal terminal GPIO156/LED0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO156/LED0. Supported peripheral buses: General. |
| D9 | IOD9 | Digital_IO | General Purpose Digital I/O Pin IOD9 |
| D10 | GPIO121/PVT_IO0 | Digital_IO | Signal terminal GPIO121/PVT_IO0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO121/PVT_IO0. Supported peripheral buses: General. |
| E1 | VTR_REG | Digital_IO | Signal terminal VTR_REG (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VTR_REG. Supported peripheral buses: General. |
| E2 | GPIO106/PWROK | Digital_IO | Signal terminal GPIO106/PWROK (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO106/PWROK. Supported peripheral buses: General. |
| E3 | VREF_ADC | Analog | Signal terminal VREF_ADC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VREF_ADC. Supported peripheral buses: ADC. |
| E4 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E7 | IOE7 | Digital_IO | General Purpose Digital I/O Pin IOE7 |
| E8 | JTAG RST#_ | Digital_IO | Signal terminal JTAG RST#_ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: JTAG RST#_. Supported peripheral buses: SWD/JTAG. |
| E9 | IOE9 | Digital_IO | General Purpose Digital I/O Pin IOE9 |
| E10 | GPIO123/PVT_IO2 | Digital_IO | Signal terminal GPIO123/PVT_IO2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO123/PVT_IO2. Supported peripheral buses: General. |
| F1 | VR_CAP | Digital_IO | Signal terminal VR_CAP (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VR_CAP. Supported peripheral buses: General. |
| F2 | IOF2 | Digital_IO | General Purpose Digital I/O Pin IOF2 |
| F3 | GPIO057/VCC_PWRGD | Power_In | Primary positive power supply input (GPIO057/VCC_PWRGD) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| F4 | VTR_ANALOG | Digital_IO | Signal terminal VTR_ANALOG (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VTR_ANALOG. Supported peripheral buses: General. |
| F7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| F8 | GPIO171/UART1_RX | Digital_IO | Signal terminal GPIO171/UART1_RX (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO171/UART1_RX. Supported peripheral buses: UART. |
| F9 | IOF9 | Digital_IO | General Purpose Digital I/O Pin IOF9 |
| F10 | GPIO126/PVT_IO3 | Digital_IO | Signal terminal GPIO126/PVT_IO3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO126/PVT_IO3. Supported peripheral buses: General. |
| G1 | IOG1 | Digital_IO | General Purpose Digital I/O Pin IOG1 |
| G2 | IOG2 | Digital_IO | General Purpose Digital I/O Pin IOG2 |
| G4 | GPIO034 | Digital_IO | Signal terminal GPIO034 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO034. Supported peripheral buses: General. |
| G5 | VTR2 | Digital_IO | Signal terminal VTR2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VTR2. Supported peripheral buses: General. |
| G6 | VTR1 | Digital_IO | Signal terminal VTR1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VTR1. Supported peripheral buses: General. |
| G7 | GPIO030/I2C10_SDA | Digital_IO | Signal terminal GPIO030/I2C10_SDA (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO030/I2C10_SDA. Supported peripheral buses: I2C. |
| G9 | GPIO112 | Digital_IO | Signal terminal GPIO112 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO112. Supported peripheral buses: General. |
| G10 | GPIO113/ICT9 | Digital_IO | Signal terminal GPIO113/ICT9 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO113/ICT9. Supported peripheral buses: General. |
| H1 | GPIO204/ADC04 | Analog | Signal terminal GPIO204/ADC04 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO204/ADC04. Supported peripheral buses: ADC. |
| H2 | IOH2 | Digital_IO | General Purpose Digital I/O Pin IOH2 |
| H5 | GPIO032 | Digital_IO | Signal terminal GPIO032 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO032. Supported peripheral buses: General. |
| H6 | GPIO015/PWM7/ICT10 | Digital_IO | Signal terminal GPIO015/PWM7/ICT10 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO015/PWM7/ICT10. Supported peripheral buses: PWM. |
| H9 | GPIO107/I2C10_SCL | Digital_IO | Signal terminal GPIO107/I2C10_SCL (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO107/I2C10_SCL. Supported peripheral buses: I2C. |
| H10 | GPIO120 | Digital_IO | Signal terminal GPIO120 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO120. Supported peripheral buses: General. |




