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MSP430F1121AIPWR
Public Made by Adomby adom
Texas Instruments Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMSP430F1121AIPWR
Texas Instruments · Microcontrollers (MCU/MPU/SOC) · TSSOP-20
MSP430F1121AIPWR from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | TEST | input | Input for selecting test mode for JTAG pins on Port1; device protection fuse is connected to this pin. |
| 2 | VCC | power_in | Supply voltage input; 1.8 V to 3.6 V recommended operating range. |
| 3 | P2.5/ROSC | bidirectional | General-purpose digital I/O pin or input for external resistor that defines the DCO nominal frequency. |
| 4 | VSS | power_in | Ground reference at 0 V. |
| 5 | XOUT | output | Output terminal of crystal oscillator. |
| 6 | XIN | input | Input terminal of crystal oscillator; accepts 32,768 Hz watch crystal or ceramic resonator up to 8 MHz. |
| 7 | RST/NMI | input | Reset or nonmaskable interrupt input; low pulse at RST/NMI pin triggers internal reset. |
| 8 | P2.0/ACLK | bidirectional | General-purpose digital I/O pin or ACLK clock output. |
| 9 | P2.1/INCLK | bidirectional | General-purpose digital I/O pin or Timer_A clock input signal. |
| 10 | P2.2/CAOUT/TA0 | bidirectional | General-purpose digital I/O pin, Timer_A capture input (CCI0B), or comparator_A output; used for BSL receive. |
| 11 | P2.3/CA0/TA1 | bidirectional | General-purpose digital I/O pin, Timer_A compare output (Out1), or comparator_A input. |
| 12 | P2.4/CA1/TA2 | bidirectional | General-purpose digital I/O pin, Timer_A compare output (Out2), or comparator_A input. |
| 13 | P1.0/TACLK | bidirectional | General-purpose digital I/O pin or Timer_A clock input (TACLK); external interrupt capable. |
| 14 | P1.1/TA0 | bidirectional | General-purpose digital I/O pin or Timer_A capture/compare register; used for BSL transmit; external interrupt capable. |
| 15 | P1.2/TA1 | bidirectional | General-purpose digital I/O pin or Timer_A capture/compare register; external interrupt capable. |
| 16 | P1.3/TA2 | bidirectional | General-purpose digital I/O pin or Timer_A capture/compare register; external interrupt capable. |
| 17 | P1.4/SMCLK/TCK | bidirectional | General-purpose digital I/O pin or SMCLK output; test clock input for JTAG device programming; external interrupt capable. |
| 18 | P1.5/TA0/TMS | bidirectional | General-purpose digital I/O pin or Timer_A compare output; test mode select input for JTAG; external interrupt capable. |
| 19 | P1.6/TA1/TDI/TCLK | bidirectional | General-purpose digital I/O pin or Timer_A compare output; test data input or test clock for JTAG; external interrupt capable. |
| 20 | P1.7/TA2/TDO/TDI | bidirectional | General-purpose digital I/O pin or Timer_A compare output; test data output or input during JTAG programming; external interrupt capable. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Embedded Processors & Controllers |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
MSP430F1121AIPWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
msp430f1121aipwr-etched.step/msp430f1121aipwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);msp430f1121aipwr.step/msp430f1121aipwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (53 pp, sha256
244782f6277a7608, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).