# MSP430G2252IPW20R

**Texas Instruments** · Microcontrollers (MCU/MPU/SOC) · TSSOP-20

MSP430G2252IPW20R from Texas Instruments, in a TSSOP-20. 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 power supply voltage, 1.8 V to 3.6 V for normal operation. |
| 2 | P1.0/TA0CLK/ACLK/A0/CA0 | bidirectional | Port 1 bit 0 general-purpose I/O; selectable as Timer0_A clock input TACLK, ACLK output, ADC10 analog input channel A0, or Comparator_A+ input CA0. |
| 3 | P1.1/TA0.0/A1/CA1 | bidirectional | Port 1 bit 1 general-purpose I/O; selectable as Timer0_A capture CCI0A input or compare output, ADC10 analog input channel A1, or Comparator_A+ input CA1. |
| 4 | P1.2/TA0.1/A2/CA2 | bidirectional | Port 1 bit 2 general-purpose I/O; selectable as Timer0_A capture CCI1A input or compare output, ADC10 analog input channel A2, or Comparator_A+ input CA2. |
| 5 | P1.3/ADC10CLK/CAOUT/A3/VREF-/VEREF-/CA3 | bidirectional | Port 1 bit 3 general-purpose I/O; selectable as ADC10 conversion clock output, Comparator_A+ output CAOUT, ADC10 analog input channel A3, ADC10 negative reference voltage, or Comparator_A+ input CA3. |
| 6 | P1.4/SMCLK/A4/VREF+/VEREF+/CA4/TCK | bidirectional | Port 1 bit 4 general-purpose I/O; selectable as SMCLK output, Timer0_A capture CCI2A input or compare output, ADC10 analog input channel A4, ADC10 positive reference voltage, Comparator_A+ input CA4, or JTAG test clock TCK. |
| 7 | P1.5/TA0.0/SCLK/A5/CA5/TMS | bidirectional | Port 1 bit 5 general-purpose I/O; selectable as Timer0_A compare output, USI serial clock SCLK, ADC10 analog input channel A5, Comparator_A+ input CA5, or JTAG test mode select TMS. |
| 8 | P2.0 | bidirectional | Port 2 bit 0 general-purpose digital I/O with pull-down resistor selectable via P2REN.0. |
| 9 | P2.1 | bidirectional | Port 2 bit 1 general-purpose digital I/O with pull-down resistor selectable via P2REN.1. |
| 10 | P2.2 | bidirectional | Port 2 bit 2 general-purpose digital I/O with pull-down resistor selectable via P2REN.2. |
| 11 | P2.3 | bidirectional | Port 2 bit 3 general-purpose digital I/O with pull-down resistor selectable via P2REN.3. |
| 12 | P2.4 | bidirectional | Port 2 bit 4 general-purpose digital I/O with pull-down resistor selectable via P2REN.4. |
| 13 | P2.5 | bidirectional | Port 2 bit 5 general-purpose digital I/O with pull-down resistor selectable via P2REN.5. |
| 14 | P1.6/TA0.1/SDO/SCL/A6/CA6/TDI/TCLK | bidirectional | Port 1 bit 6 general-purpose I/O; selectable as Timer0_A compare output, USI SPI data output SDO, USI I2C clock SCL, ADC10 analog input channel A6, Comparator_A+ input CA6, or JTAG test data input TDI or test clock TCLK. |
| 15 | P1.7/SDI/SDA/CAOUT/A7/CA7/TDO/TDI | bidirectional | Port 1 bit 7 general-purpose I/O; selectable as USI SPI data input SDI, USI I2C data SDA, Comparator_A+ output CAOUT, ADC10 analog input channel A7, Comparator_A+ input CA7, or JTAG test data output TDO or input TDI. |
| 16 | RST/NMI/SBWTDIO | input | Reset input; nonmaskable interrupt input NMI; Spy-Bi-Wire test data input/output SBWTDIO during programming and test. |
| 17 | TEST/SBWTCK | input | Test mode select input for JTAG pins on port 1; Spy-Bi-Wire test clock input SBWTCK during programming and test. |
| 18 | XOUT/P2.7 | bidirectional | Output terminal of crystal oscillator; may also be used as general-purpose digital I/O pin P2.7. |
| 19 | XIN/P2.6/TA0.1 | bidirectional | Input terminal of crystal oscillator; may also be used as general-purpose digital I/O pin P2.6 or Timer0_A capture output. |
| 20 | DVSS | power_in | Digital ground reference. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Embedded Processors & Controllers |
| Pins | 20 |

## CAD (KiCad official)

- Symbol: `MSP430G2252IPW20R`
- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`
- 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files: `msp430g2252ipw20r-etched.step` / `msp430g2252ipw20r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `msp430g2252ipw20r.step` / `msp430g2252ipw20r.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/msp430g2452) (78 pp, sha256 `213d8b0d2e936702`, retrieved 2026-10-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (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/msp430g2252ipw20r-datasheet.pdf)