Mechanical Dimensions & Land Pattern (WFBGA-176)
Extracted from Datasheet & IPC-7351B NormalizedPackage Body (D × E)Nominal
10.00 × 10.00 mm
Height (A) & Pitch (e)IPC-7351B
A=1.35mm · e=0.65mm
Pad Size (W × L)Level B
0.22 × 0.22 mm
Pins / Total PadsTopology
176P / 176Pad (BGA_GRID)
Recommended 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-176 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — MEC1723N-B0-I/LJ (WFBGA-176)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of MEC1723N-B0-I/LJ (WFBGA-176)?
Manufactured by MICROCHIP, the MEC1723N-B0-I/LJ is housed in a WFBGA-176 package with 176 pins and a 0.65 mm lead pitch. Key pins include: A1 (IOA1: General Purpose Digital I/O Pin IOA1), A2 (IOA2: General Purpose Digital I/O Pin IOA2), A3 (IOA3: General Purpose Digital I/O Pin IOA3), A4 (XTAL2: Multiplexed I/O & Peripheral Pin XTAL2 (RTC/CLK)), A5 (XTAL1: Multiplexed I/O & Peripheral Pin XTAL1 (RTC/CLK)), A6 (BGPO3/GPIO172: Multiplexed I/O & Peripheral Pin BGPO3/GPIO172 (General)).
What are the IPC-7351B PCB Footprint dimensions for MEC1723N-B0-I/LJ?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), MEC1723N-B0-I/LJ (WFBGA-176) has a nominal body envelope of 10.00 × 10.00 mm, pitch e = 0.65 mm, and 176 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for MEC1723N-B0-I/LJ?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for MEC1723N-B0-I/LJ (MICROCHIP, WFBGA-176) 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 (176 pins) & MEC1723 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | IOA1 | Digital_IO | General Purpose Digital I/O Pin IOA1 |
| A2 | IOA2 | Digital_IO | General Purpose Digital I/O Pin IOA2 |
| A3 | IOA3 | Digital_IO | General Purpose Digital I/O Pin IOA3 |
| A4 | XTAL2 | Digital_IO | Signal terminal XTAL2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTAL2. Supported peripheral buses: RTC/CLK. |
| A5 | XTAL1 | Digital_IO | Signal terminal XTAL1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTAL1. Supported peripheral buses: RTC/CLK. |
| A6 | BGPO3/GPIO172 | Digital_IO | Signal terminal BGPO3/GPIO172 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO3/GPIO172. Supported peripheral buses: General. |
| A7 | BGPO0 | Digital_IO | Signal terminal BGPO0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO0. Supported peripheral buses: General. |
| A8 | VCI_IN0#(EMDRST_IN) | Digital_IO | Signal terminal VCI_IN0#(EMDRST_IN) (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI_IN0#(EMDRST_IN). Supported peripheral buses: General. |
| A9 | IOA9 | Digital_IO | General Purpose Digital I/O Pin IOA9 |
| A10 | IOA10 | Digital_IO | General Purpose Digital I/O Pin IOA10 |
| A11 | IOA11 | Digital_IO | General Purpose Digital I/O Pin IOA11 |
| A12 | GPIO254 | Digital_IO | Signal terminal GPIO254 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO254. Supported peripheral buses: General. |
| A13 | GPIO243/GPSPI_IO1 | Digital_IO | Signal terminal GPIO243/GPSPI_IO1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO243/GPSPI_IO1. Supported peripheral buses: General. |
| A14 | GPIO225/UART0_RTS#_ALT | Digital_IO | Signal terminal GPIO225/UART0_RTS#_ALT (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO225/UART0_RTS#_ALT. Supported peripheral buses: UART. |
| B1 | GPIO041 | Digital_IO | Signal terminal GPIO041 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO041. Supported peripheral buses: General. |
| B2 | GPIO033/TACH3/RC_ID0 | Digital_IO | Signal terminal GPIO033/TACH3/RC_ID0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO033/TACH3/RC_ID0. Supported peripheral buses: General. |
| B3 | IOB3 | Digital_IO | General Purpose Digital I/O Pin IOB3 |
| B4 | IOB4 | Digital_IO | General Purpose Digital I/O Pin IOB4 |
| B5 | BGPO5/GPIO174 | Digital_IO | Signal terminal BGPO5/GPIO174 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO5/GPIO174. Supported peripheral buses: General. |
| B6 | BGPO1/GPIO101 | Digital_IO | Signal terminal BGPO1/GPIO101 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO1/GPIO101. Supported peripheral buses: General. |
| B7 | VCI_IN1#/GPIO162 | Digital_IO | Signal terminal VCI_IN1#/GPIO162 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI_IN1#/GPIO162. Supported peripheral buses: General. |
| B8 | IOB8 | Digital_IO | General Purpose Digital I/O Pin IOB8 |
| B9 | IOB9 | Digital_IO | General Purpose Digital I/O Pin IOB9 |
| B10 | IOB10 | Digital_IO | General Purpose Digital I/O Pin IOB10 |
| B11 | IOB11 | Digital_IO | General Purpose Digital I/O Pin IOB11 |
| B12 | IOB12 | Digital_IO | General Purpose Digital I/O Pin IOB12 |
| B13 | 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. |
| B14 | IOB14 | Digital_IO | General Purpose Digital I/O Pin IOB14 |
| C1 | IOC1 | Digital_IO | General Purpose Digital I/O Pin IOC1 |
| C2 | IOC2 | Digital_IO | General Purpose Digital I/O Pin IOC2 |
| C3 | IOC3 | Digital_IO | General Purpose Digital I/O Pin IOC3 |
| C4 | IOC4 | Digital_IO | General Purpose Digital I/O Pin IOC4 |
| C5 | BGPO4/GPIO173 | Digital_IO | Signal terminal BGPO4/GPIO173 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO4/GPIO173. Supported peripheral buses: General. |
| C6 | BGPO2/GPIO102 | Digital_IO | Signal terminal BGPO2/GPIO102 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BGPO2/GPIO102. Supported peripheral buses: General. |
| C7 | IOC7 | Digital_IO | General Purpose Digital I/O Pin IOC7 |
| C8 | IOC8 | Digital_IO | General Purpose Digital I/O Pin IOC8 |
| C9 | IOC9 | Digital_IO | General Purpose Digital I/O Pin IOC9 |
| C10 | GPIO242/VCC_PWRGD_ALT | Power_In | Primary positive power supply input (GPIO242/VCC_PWRGD_ALT) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| C11 | IOC11 | Digital_IO | General Purpose Digital I/O Pin IOC11 |
| C12 | IOC12 | Digital_IO | General Purpose Digital I/O Pin IOC12 |
| C13 | 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. |
| C14 | IOC14 | Digital_IO | General Purpose Digital I/O Pin IOC14 |
| D1 | IOD1 | Digital_IO | General Purpose Digital I/O Pin IOD1 |
| D2 | GPIO166/PWRGD_S0iX_ALT | Digital_IO | Signal terminal GPIO166/PWRGD_S0iX_ALT (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO166/PWRGD_S0iX_ALT. Supported peripheral buses: General. |
| D3 | nRESET_IN | Digital_IO | Active-low hardware reset terminal (nRESET_IN): pulling this pin Low resets the processor core and peripherals. |
| D4 | VCI_IN2#/GPIO161 | Digital_IO | Signal terminal VCI_IN2#/GPIO161 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI_IN2#/GPIO161. Supported peripheral buses: General. |
| D5 | VCI_OUT2 | Digital_IO | Signal terminal VCI_OUT2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI_OUT2. Supported peripheral buses: General. |
| D10 | IOD10 | Digital_IO | General Purpose Digital I/O Pin IOD10 |
| D11 | IOD11 | Digital_IO | General Purpose Digital I/O Pin IOD11 |
| D12 | GPIO153/LED2 | Digital_IO | Signal terminal GPIO153/LED2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO153/LED2. Supported peripheral buses: General. |
| D13 | IOD13 | Digital_IO | General Purpose Digital I/O Pin IOD13 |
| D14 | IOD14 | Digital_IO | General Purpose Digital I/O Pin IOD14 |
| 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 | IOE2 | Digital_IO | General Purpose Digital I/O Pin IOE2 |
| E3 | VCI_IN4#/GPIO234 | Digital_IO | Signal terminal VCI_IN4#/GPIO234 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI_IN4#/GPIO234. Supported peripheral buses: General. |
| E4 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| E5 | VCI_OVRD_IN | Digital_IO | Signal terminal VCI_OVRD_IN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VCI_OVRD_IN. Supported peripheral buses: General. |
| E6 | IOE6 | Digital_IO | General Purpose Digital I/O Pin IOE6 |
| E7 | IOE7 | Digital_IO | General Purpose Digital I/O Pin IOE7 |
| E8 | IOE8 | Digital_IO | General Purpose Digital I/O Pin IOE8 |
| E9 | GPIO253 | Digital_IO | Signal terminal GPIO253 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO253. Supported peripheral buses: General. |
| E10 | IOE10 | Digital_IO | General Purpose Digital I/O Pin IOE10 |
| E11 | IOE11 | Digital_IO | General Purpose Digital I/O Pin IOE11 |
| E12 | GPIO123/PVT_IO2/KSO10 | Digital_IO | Signal terminal GPIO123/PVT_IO2/KSO10 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO123/PVT_IO2/KSO10. Supported peripheral buses: General. |