# MSP430FE427IPMR

**Texas Instruments** · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)

MSP430FE427IPMR from Texas Instruments, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DVCC | power_in | Digital supply voltage, positive terminal. |
| 2 | I1+ | input | Current 1 positive analog input, internal connection to SD16 channel 0 A0+. |
| 3 | I1− | input | Current 1 negative analog input, internal connection to SD16 channel 0 A0−. |
| 4 | I2+ | input | Current 2 positive analog input, internal connection to SD16 channel 1 A0+. |
| 5 | I2− | input | Current 2 negative analog input, internal connection to SD16 channel 1 A0−. |
| 6 | V1+ | input | Voltage 1 positive analog input, internal connection to SD16 channel 2 A0+. |
| 7 | V1− | input | Voltage 1 negative analog input, internal connection to SD16 channel 2 A0−. |
| 8 | XIN | input | Input port for crystal oscillator XT1; standard or watch crystals can be connected. |
| 9 | XOUT | output | Output terminal of crystal oscillator XT1. |
| 10 | VREF | power_in | Input for an external reference voltage, internal reference voltage output (can be used as mid-voltage). |
| 11 | P2.2/STE0 | bidirectional | General-purpose digital I/O; Slave transmit enable for USART0 in SPI mode. |
| 12 | S0 | output | LCD segment output 0. |
| 13 | S1 | output | LCD segment output 1. |
| 14 | S2 | output | LCD segment output 2. |
| 15 | S3 | output | LCD segment output 3. |
| 16 | S4 | output | LCD segment output 4. |
| 17 | S5 | output | LCD segment output 5. |
| 18 | S6 | output | LCD segment output 6. |
| 19 | S7 | output | LCD segment output 7. |
| 20 | S8 | output | LCD segment output 8. |
| 21 | S9 | output | LCD segment output 9. |
| 22 | S10 | output | LCD segment output 10. |
| 23 | S11 | output | LCD segment output 11. |
| 24 | S12 | output | LCD segment output 12. |
| 25 | S13 | output | LCD segment output 13. |
| 26 | S14 | output | LCD segment output 14. |
| 27 | S15 | output | LCD segment output 15. |
| 28 | S16 | output | LCD segment output 16. |
| 29 | S17 | output | LCD segment output 17. |
| 30 | S18 | output | LCD segment output 18. |
| 31 | S19 | output | LCD segment output 19. |
| 32 | S20 | output | LCD segment output 20. |
| 33 | S21 | output | LCD segment output 21. |
| 34 | S22 | output | LCD segment output 22. |
| 35 | S23 | output | LCD segment output 23. |
| 36 | COM0 | output | Common output; COM0−COM3 are used for LCD backplanes. |
| 37 | COM1 | output | Common output; COM0−COM3 are used for LCD backplanes. |
| 38 | COM2 | output | Common output; COM0−COM3 are used for LCD backplanes. |
| 39 | COM3 | output | Common output; COM0−COM3 are used for LCD backplanes. |
| 40 | R03 | input | Input port of fourth positive (lowest) analog LCD level (V5). |
| 41 | R13 | input | Input port of third most positive analog LCD level (V4 or V3). |
| 42 | R23 | input | Input port of second most positive analog LCD level (V2). |
| 43 | R33 | output | Output port of most positive analog LCD level (V1). |
| 44 | P2.1/UCLK0/S24 | bidirectional | General-purpose digital I/O; External clock input for USART0 in UART or SPI mode, or clock output for USART0 in SPI mode; LCD segment output 24. |
| 45 | P2.0/TA2/S25 | bidirectional | General-purpose digital I/O; Timer_A Capture: CCI2A input, Compare: Out2 output; LCD segment output 25. |
| 46 | P1.7/SOMI0/S26 | bidirectional | General-purpose digital I/O; Slave out/master in for USART0 in SPI mode; LCD segment output 26. |
| 47 | P1.6/SIMO0/S27 | bidirectional | General-purpose digital I/O; Slave in/master out for USART0 in SPI mode; LCD segment output 27. |
| 48 | P1.5/TACLK/ACLK/S28 | bidirectional | General-purpose digital I/O; Timer_A and SD16 clock signal TACLK input; ACLK output (divided by 1, 2, 4, or 8); LCD segment output 28. |
| 49 | P1.4/S29 | bidirectional | General-purpose digital I/O; LCD segment output 29. |
| 50 | P1.3/SVSOUT/S30 | bidirectional | General-purpose digital I/O; SVS: output of SVS comparator; LCD segment output 30. |
| 51 | P1.2/TA1/S31 | bidirectional | General-purpose digital I/O; Timer_A, Capture: CCI1A, CCI1B input, Compare: Out1 output; LCD segment output 31. |
| 52 | P1.1/TA0/MCLK | bidirectional | General-purpose digital I/O; Timer_A, Capture: CCI0B input; Note: TA0 is only an input on this pin; MCLK output; BSL receive. |
| 53 | P1.0/TA0 | bidirectional | General-purpose digital I/O; Timer_A, Capture: CCI0A input, Compare: Out0 output; BSL transmit. |
| 54 | TDO/TDI | bidirectional | Test data output port; TDO/TDI data output or programming data input terminal. |
| 55 | TDI/TCLK | input | Test data input or test clock input; the device protection fuse is connected to TDI. |
| 56 | TMS | input | Test mode select; TMS is used as an input port for device programming and test. |
| 57 | TCK | input | Test clock; TCK is the clock input port for device programming and test. |
| 58 | RST/NMI | input | Reset input or nonmaskable interrupt input port. |
| 59 | P2.5/URXD0 | bidirectional | General-purpose digital I/O; Receive data in for USART0 in UART mode. |
| 60 | P2.4/UTXD0 | bidirectional | General-purpose digital I/O; Transmit data out for USART0 in UART mode. |
| 61 | P2.3/SVSIN | bidirectional | General-purpose digital I/O; Analog input to brownout, supply voltage supervisor. |
| 62 | AVSS | power_in | Analog supply voltage, negative terminal; supplies SD16, SVS, brownout, oscillator, and LCD resistive divider circuitry. |
| 63 | DVSS | power_in | Digital supply voltage, negative terminal. |
| 64 | AVCC | power_in | Analog supply voltage, positive terminal; supplies SD16, SVS, brownout, oscillator, and LCD resistive divider circuitry; do not power up before DVCC. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |

## CAD (KiCad official)

- Symbol: `MSP430FE427IPMR`
- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`
- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files: `msp430fe427ipmr-etched.step` / `msp430fe427ipmr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `msp430fe427ipmr.step` / `msp430fe427ipmr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/msp430fe427) (67 pp, sha256 `9b5a32bc8b742f84`, retrieved 2026-09-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/msp430fe427ipmr-datasheet.pdf)