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README

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MSP430FR59941IRGZR

Texas Instruments · Microcontrollers (MCU/MPU/SOC) · VQFN-48-EP(7x7)

MSP430FR59941IRGZR from Texas Instruments, in a VQFN-48-EP(7x7). 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 P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternates include TA0.1, DMAE0, RTCCLK, ADC input A0, comparator input C0 and VREF-/VeREF-.
2 P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternates include TA0.2, TA1CLK, COUT, ADC input A1, comparator input C1 and VREF+/VeREF+.
3 P1.2/TA1.1/TA0CLK/COUT/A2/C2 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternates include TA1.1, TA0CLK, COUT, ADC input A2 and comparator input C2.
4 P3.0/A12/C12 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A12 and comparator input C12.
5 P3.1/A13/C13 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, powered from DVCC; alternate function is ADC input A13 and comparator input C13.
6 P3.2/A14/C14 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A14 and comparator input C14.
7 P3.3/A15/C15 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A15 and comparator input C15.
8 P4.7 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC.
9 P1.3/TA1.2/UCB0STE/A3/C3 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternates include TA1.2, UCB0STE, ADC input A3 and comparator input C3.
10 P1.4/TB0.1/UCA0STE/A4/C4 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternates include TB0.1, UCA0STE, ADC input A4 and comparator input C4.
11 P1.5/TB0.2/UCA0CLK/A5/C5 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternates include TB0.2, UCA0CLK, ADC input A5 and comparator input C5.
12 PJ.0/TDO/TB0OUTH/SMCLK/SRSCG1/C6 bidirectional General-purpose I/O (PJ.0) shared with JTAG TDO, TB0OUTH, SMCLK, SRSCG1 and comparator input C6; keep open when used as a JTAG pin.
13 PJ.1/TDI/TCLK/MCLK/SRSCG0/C7 bidirectional General-purpose I/O (PJ.1) shared with JTAG TDI/TCLK, MCLK, SRSCG0 and comparator input C7; keep open when used as a JTAG pin.
14 PJ.2/TMS/ACLK/SROSCOFF/C8 bidirectional General-purpose I/O (PJ.2) shared with JTAG TMS, ACLK, SROSCOFF and comparator input C8; keep open when used as a JTAG pin.
15 PJ.3/TCK/SRCPUOFF/C9 bidirectional General-purpose I/O (PJ.3) shared with JTAG TCK, SRCPUOFF and comparator input C9; keep open when used as a JTAG pin.
16 P4.0/A8 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A8.
17 P4.1/A9 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A9.
18 P4.2/A10 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A10.
19 P4.3/A11 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5, reset state OFF, powered from DVCC; alternate function is ADC input A11.
20 P2.5/TB0.0/UCA1TXD/UCA1SIMO bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.0 and eUSCI_A1 transmit/SIMO.
21 P2.6/TB0.1/UCA1RXD/UCA1SOMI bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.1 and eUSCI_A1 receive/SOMI.
22 TEST/SBWTCK input Test mode pin that selects digital I/O on the JTAG pins and serves as Spy-Bi-Wire clock input; it has an internal pulldown that is always enabled, so leave it open when unused.
23 RST/NMI/SBWTDIO input Active-low reset input, also NMI and Spy-Bi-Wire data; if unused, connect to DVCC through a 47-kΩ pullup (or internal pullup) with 10-nF pulldown (2.2 nF maximum when using Spy-Bi-Wire or 4-wire JTAG tools).
24 P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.6, eUSCI_A0 transmit/SIMO, TB0CLK and ACLK output.
25 P2.1/TB0.0/UCA0RXD/UCA0SOMI bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.0 and eUSCI_A0 receive/SOMI.
26 P2.2/TB0.2/UCB0CLK bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.2 and eUSCI_B0 clock.
27 P3.4/TB0.3/SMCLK bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.3 and SMCLK output.
28 P3.5/TB0.4/COUT bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TB0.4 and comparator output COUT.
29 P3.6/TB0.5 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternate function is TB0.5.
30 P3.7/TB0.6 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternate function is TB0.6.
31 P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; on this I2C-BSL device it is BSLSDA, and alternates include TB0.3, eUSCI_B0 SIMO/SDA and TA0.0.
32 P1.7/TB0.4/UCB0SOMI/UCB0SCL/TA1.0 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; on this I2C-BSL device it is BSLSCL, and alternates include TB0.4, eUSCI_B0 SOMI/SCL and TA1.0.
33 P4.4/TB0.5 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternate function is TB0.5 capture/compare.
34 P4.5 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5.
35 P4.6 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5.
36 DVSS1 power_in Digital ground supply (0 V) for the digital domain.
37 DVCC1 power_in Digital power supply; VCC must be 1.8 V to 3.6 V (SVS limit applies), decoupled with 1 µF plus 100 nF placed close to the pin.
38 P2.7 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; no alternate peripheral function listed.
39 P2.3/TA0.0/UCA1STE/A6/C10 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TA0.0, eUSCI_A1 STE, ADC input A6 and comparator input C10.
40 P2.4/TA1.0/UCA1CLK/A7/C11 bidirectional General-purpose I/O with port interrupt and wake-up from LPMx.5; alternates include TA1.0, eUSCI_A1 clock, ADC input A7 and comparator input C11.
41 AVSS3 power_in Analog ground supply (0 V).
42 PJ.6/HFXIN bidirectional Port PJ.6 shared with the high-frequency crystal oscillator input HFXIN, or the bypass clock input when HFXTBYPASS is selected.
43 PJ.7/HFXOUT bidirectional Port PJ.7 shared with the high-frequency crystal oscillator output HFXOUT; it becomes general-purpose I/O when HFXT bypass mode is used.
44 AVSS2 power_in Analog ground supply (0 V).
45 PJ.4/LFXIN bidirectional Port PJ.4 shared with the low-frequency (32 kHz) crystal oscillator input LFXIN, or the bypass clock input when LFXTBYPASS is selected.
46 PJ.5/LFXOUT bidirectional Port PJ.5 shared with the low-frequency (32 kHz) crystal oscillator output LFXOUT; it becomes general-purpose I/O when LFXT bypass mode is used.
47 AVSS1 power_in Analog ground supply (0 V).
48 AVCC1 power_in Analog power supply; VCC must be 1.8 V to 3.6 V, and the difference between DVCC and AVCC must stay within ±0.3 V.
49 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-48-EP(7x7)
Category Embedded Processors & Controllers
Pins 49

CAD (KiCad official)

  • Symbol: MSP430FR59941IRGZR
  • Footprint: Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm
  • 3D model: VQFN-48-EP(7x7) (KiCad packages3D, STEP)
  • 3D model files: msp430fr59941irgzr-etched.step / msp430fr59941irgzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); msp430fr59941irgzr.step / msp430fr59941irgzr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (177 pp, sha256 305369231542d625, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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