MSP430F5438AIPZR - 25MHz 16-bit MCU 256KB Flash | Texas Instruments (Tape & Reel)
MPN: MSP430F5438AIPZR ✓ AktifMSP430F5438AIPZR Ringkasan
An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU, memory, and programmable peripherals around a common bus. The MSP430 is a 16-bit ultra-low-power MCU family from Texas Instruments, positioned in the hierarchy as: microcontroller → mixed-signal MCU → ultra-low-power MCU → embedded processor → semiconductor. The MSP430 architecture pairs a 16-bit RISC CPU with constant generators and 16-bit registers, optimized for portable measurement applications where battery life is critical.
Key features of the MSP430F5438AIPZR include five low-power modes (LPM0-LPM4) that draw as little as microamp-level standby currents, an on-chip real-time clock (RTC) module with a separate supply pin for calendar functions in battery-backed systems, and a sophisticated timer subsystem (Timer_A and Timer_B) supporting PWM, capture, and compare. The integrated DMA reduces CPU wake events by autonomously servicing peripherals and buffering ADC samples.
The device supports JTAG and Spy-Bi-Wire two-wire debug interfaces for in-system programming and debugging without consuming a dedicated UART pin set. Its 87 configurable GPIO pins and 14 ADC channels suit mixed-signal sensing. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications such as wireless sensor nodes, energy-harvesting instrumentation, smart meters, and human-interface devices.
Typical end applications include wireless sensor networks (paired with sub-1 GHz or 2.4 GHz transceivers), industrial data loggers, e-metering, portable medical instruments, and human-machine interface panels. Designers commonly pair this MCU with the CC1120 or CC2530 RF transceiver for low-power IoT nodes.
When designing with this part, place a 100 nF decoupling capacitor as close as possible to each AVCC and DVCC pin pair and provide a 1 µF bulk capacitor on the main supply rail. Use the Spy-Bi-Wire interface for a debug footprint that occupies only two MCU pins, freeing the rest for user I/O.
This page synthesizes distributor pricing, same-brand drop-in alternatives from the MSP430F5xx family, parameter-by-parameter comparisons, and practical design notes not found in the manufacturer datasheet alone.
Alternatif penggantian untuk MSP430F5438AIPZR — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MSP430F5438AIPZR (sama faktor bentuk dan footprint) — berbeda di dalam Hardware Multiplier, Package.
MSP430F5438APZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MSP430F5436AIPZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MSP430F5435AIPZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MSP430F5438AIPZQ1
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MSP430F5419AIPZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MSP430F6638IPZ
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
MSP430F5438AIPZR Rating Maksimal & Karakteristik Listrik
| Core Architecture | MSP430 CPUXV2 (16-bit RISC) |
| Frekuensi Bawah Maximum | 25 MHz |
| Program Flash Memory | 256 KB (256K x 8) |
| SRAM | 16 KB |
| ADC | 12-bit SAR, 14 channels |
| DMA Channels | 4 |
| Hardware Multiplier | 32-bit |
| GPIO Count | 87 |
| Communication Interfaces | UART, SPI, I2C (4x USCI modules) |
| Timers | Timer_A and Timer_B |
| RTC | Yes, with separate RTC supply pin |
| Operating Voltage | 1.8 V to 3.6 V |
| Suhu Kerja | -40 C to +85 C |
| Paket | 100-pin LQFP (14x14 mm) |
| Tipe Mounting | Surface Mount |
| Debug Interface | JTAG, Spy-Bi-Wire (2-wire) |
| Status RoHS | Compliant |
Konfigurasi Pin MSP430F5438AIPZR
| Pin produk 1 | P6.0/TA0_0 — General-purpose I/O / Timer_A0 capture-compare input |
| Pin produk 2 | P6.1/TA0_1 — General-purpose I/O / Timer_A0 CCR1 |
| Pin produk 3 | P6.2/TA0_2 — General-purpose I/O / Timer_A0 CCR2 |
| Pin produk 4 | P6.3/TA0_3 — General-purpose I/O / Timer_A0 CCR3 |
| Pin produk 5 | P6.4/TA0_4 — General-purpose I/O / Timer_A0 CCR4 |
| Pin produk 6 | P6.5/TA0_5 — General-purpose I/O / Timer_A0 CCR5 |
| Pin produk 7 | P6.6/TA0_6 — General-purpose I/O / Timer_A0 CCR6 |
| Pin produk 8 | P6.7/TA0_7 — General-purpose I/O / Timer_A0 CCR7 |
| Pin produk 9 | P5.0/A0 — General-purpose I/O / ADC analog input A0 |
| Pin produk 10 | P5.1/A1 — General-purpose I/O / ADC analog input A1 |
| Pin produk 11 | P5.2/A2 — General-purpose I/O / ADC analog input A2 |
| Pin produk 12 | P5.3/A3 — General-purpose I/O / ADC analog input A3 |
| Pin produk 13 | P5.4/A4 — General-purpose I/O / ADC analog input A4 |
| Pin produk 14 | P5.5/A5 — General-purpose I/O / ADC analog input A5 |
| Pin produk 15 | P5.6/A6 — General-purpose I/O / ADC analog input A6 |
| Pin produk 16 | P5.7/A7 — General-purpose I/O / ADC analog input A7 |
| Pin produk 17 | AVCC1 — Analog power supply |
| Pin produk 18 | P8.0/A8/RTS — General-purpose I/O / ADC A8 / UART RTS |
| Pin produk 19 | P8.1/A9/CTS — General-purpose I/O / ADC A9 / UART CTS |
| Pin produk 20 | P8.2/A10 — General-purpose I/O / ADC analog input A10 |
| Pin produk 21 | P8.3/A11 — General-purpose I/O / ADC analog input A11 |
| Pin produk 22 | AVSS1 — Analog ground |
| Pin produk 23 | VREF+ — ADC positive reference voltage |
| Pin produk 24 | VREF-/VeREF- — ADC negative reference / external reference negative input |
| Pin produk 25 | P7.0/A12 — General-purpose I/O / ADC analog input A12 |
| Pin produk 26 | P7.1/A13 — General-purpose I/O / ADC analog input A13 |
| Pin produk 27 | P7.2 — General-purpose I/O |
| Pin produk 28 | P7.3 — General-purpose I/O |
| Pin produk 29 | P7.4 — General-purpose I/O |
| Pin produk 30 | P7.5 — General-purpose I/O |
| Pin produk 31 | P7.6 — General-purpose I/O |
| Pin produk 32 | P7.7 — General-purpose I/O |
| Pin produk 33 | P3.0/UCB0STE/UCA0CLK — USCI B0 SPI slave transmit enable / USCI A0 clock |
| Pin produk 34 | P3.1/UCB0SIMO/UCB0SOMI — USCI B0 SPI mode: slave in / master out |
| Pin produk 35 | P3.2/UCB0SOMI/UCB0SIMO — USCI B0 SPI mode: slave out / master in |
| Pin produk 36 | P3.3/UCB0CLK/UCA0STE — USCI B0 SPI clock / USCI A0 SPI STE |
| Pin produk 37 | P4.0/PM_UCA1TXD/PM_UCA1SOMI — Port mapping UCA1 TXD / SPI data (port-mapped) |
| Pin produk 38 | P4.1/PM_UCA1RXD/PM_UCA1SIMO — Port mapping UCA1 RXD / SPI data (port-mapped) |
| Pin produk 39 | P4.2/PM_UCA1CLK/PM_UCA1STE — Port mapping UCA1 clock / SPI STE (port-mapped) |
| Pin produk 40 | P4.3/PM_UCA1STE/PM_UCA1CLK — Port mapping UCA1 STE / clock (port-mapped) |
| Pin produk 41 | P4.4/PM_UCB1FLHOLD/PM_UCB1FLST — Port mapping UCB1 flash hold / flash ST (port-mapped) |
| Pin produk 42 | P4.5/PM_UCB1FLST/PM_UCB1FLHOLD — Port mapping UCB1 flash ST / hold (port-mapped) |
| Pin produk 43 | P4.6/PM_UCA1TXD/PM_UCA1SOMI — Port mapping UCA1 TXD (duplicate function) |
| Pin produk 44 | P4.7/PM_UCA1RXD/PM_UCA1SIMO — Port mapping UCA1 RXD (duplicate function) |
| Pin produk 45 | P1.0/TA0CLK/ACLK — Timer_A0 external clock / ACLK output |
| Pin produk 46 | P1.1/TA0.0 — General-purpose I/O / Timer_A0 CCR0 |
| Pin produk 47 | P1.2/TA0.1 — General-purpose I/O / Timer_A0 CCR1 |
| Pin produk 48 | P1.3/TA0.2 — General-purpose I/O / Timer_A0 CCR2 |
| Pin produk 49 | P1.4/TA0.3 — General-purpose I/O / Timer_A0 CCR3 |
| Pin produk 50 | P1.5/TA0.4 — General-purpose I/O / Timer_A0 CCR4 |
| Pin produk 51 | P1.6/TA0.5 — General-purpose I/O / Timer_A0 CCR5 |
| Pin produk 52 | P1.7/TA0.6 — General-purpose I/O / Timer_A0 CCR6 |
| Pin produk 53 | P2.0/TA1CLK — Timer_A1 external clock |
| Pin produk 54 | P2.1/TA1.0 — General-purpose I/O / Timer_A1 CCR0 |
| Pin produk 55 | P2.2/TA1.1 — General-purpose I/O / Timer_A1 CCR1 |
| Pin produk 56 | P2.3/TA1.2 — General-purpose I/O / Timer_A1 CCR2 |
| Pin produk 57 | P2.4/TA1.3 — General-purpose I/O / Timer_A1 CCR3 |
| Pin produk 58 | P2.5/TA1.4 — General-purpose I/O / Timer_A1 CCR4 |
| Pin produk 59 | P2.6/TA1.5 — General-purpose I/O / Timer_A1 CCR5 |
| Pin produk 60 | P2.7/TA1.6 — General-purpose I/O / Timer_A1 CCR6 |
| Pin produk 61 | RST/NMI — Reset (active low) / non-maskable interrupt input |
| Pin produk 62 | TEST/SBWTCK — Test mode pin / Spy-Bi-Wire clock (production, also debug) |
| Pin produk 63 | DVCC1 — Digital power supply 1 |
| Pin produk 64 | DVSS1 — Digital ground 1 |
| Pin produk 65 | XIN — Crystal oscillator input |
| Pin produk 66 | XOUT — Crystal oscillator output |
| Pin produk 67 | AVSS2 — Analog ground 2 |
| Pin produk 68 | AVCC2 — Analog power supply 2 |
| Pin produk 69 | XT2IN — Secondary crystal oscillator input (for HF crystal) |
| Pin produk 70 | XT2OUT — Secondary crystal oscillator output |
| Pin produk 71 | VBAT — RTC backup supply pin |
| Pin produk 72 | P9.0 — General-purpose I/O |
| Pin produk 73 | P9.1 — General-purpose I/O |
| Pin produk 74 | P9.2 — General-purpose I/O |
| Pin produk 75 | P9.3 — General-purpose I/O |
| Pin produk 76 | P9.4 — General-purpose I/O |
| Pin produk 77 | P9.5 — General-purpose I/O |
| Pin produk 78 | P9.6 — General-purpose I/O |
| Pin produk 79 | P9.7 — General-purpose I/O |
| Pin produk 80 | P10.0 — General-purpose I/O |
| Pin produk 81 | P10.1 — General-purpose I/O |
| Pin produk 82 | P10.2 — General-purpose I/O |
| Pin produk 83 | P10.3 — General-purpose I/O |
| Pin produk 84 | P10.4 — General-purpose I/O |
| Pin produk 85 | P10.5 — General-purpose I/O |
| Pin produk 86 | P10.6 — General-purpose I/O |
| Pin produk 87 | P10.7 — General-purpose I/O |
| Pin produk 88 | DVCC2 — Digital power supply 2 |
| Pin produk 89 | DVSS2 — Digital ground 2 |
| Pin produk 90 | P11.0 — General-purpose I/O |
| Pin produk 91 | P11.1 — General-purpose I/O |
| Pin produk 92 | P11.2 — General-purpose I/O |
| Pin produk 92 | P11.2 — General-purpose I/O |
| Pin produk 93 | P11.3 — General-purpose I/O |
| Pin produk 94 | P11.4 — General-purpose I/O |
| Pin produk 95 | P11.5 — General-purpose I/O |
| Pin produk 96 | P11.6 — General-purpose I/O |
| Pin produk 97 | P11.7 — General-purpose I/O |
| Pin produk 98 | TDO/TDI — JTAG test data out / in (shared) |
| Pin produk 99 | TMS — JTAG test mode select |
| Pin produk 100 | TCK — JTAG test clock |
Aplikasi Umum
MSP430F5438AIPZR cocok untuk 6 aplikasis: Wireless Sensor Network Node, Smart Meter / Energy Metering, Portable Medical / Healthcare Devices, Industrial Sensor Data Logger, Human-Machine Interface (HMI) Panels, E-Paper / Battery Powered Display Terminal.
Wireless Sensor Network Node
The MSP430F5438AIPZR is well matched to wireless sensor nodes (WSN) where idle current dominates the energy budget. Its LPM3 sleep current of roughly 2.1 uA keeps total system consumption minimal when the radio is off, while the 256 KB Flash accommodates a SimpliciTI or proprietary 802.15.4 stack and application code. The integrated 4-channel DMA offloads packet buffering from the CPU, letting the CPU remain in LPM until the radio interrupt wakes it. Paired with the CC1120 sub-1 GHz transceiver, the node achieves years of battery life on two AA cells in typical metering applications.
Direkomendasikan
Smart Meter / Energy Metering
In electricity, gas, and water metering designs, the MSP430F5438AIPZR offers the 12-bit SAR ADC, hardware multiplier, and 16 KB SRAM needed for accurate metrology calculations on small signal CT or shunt inputs. The 256 KB Flash stores segmented metering firmware plus RF communication stack. Hardware DMA paired with the 14 ADC channels supports multi-rate sampling without waking the CPU on every conversion. The integrated RTC with dedicated VBAT supply pin preserves calendar operation across main-battery replacement, a critical feature for metering applications.
Direkomendasikan
Portable Medical / Healthcare Devices
Battery-powered medical instruments such as glucose meters, pulse oximeters, and wearable patient monitors benefit from the MSP430F5438AIPZR ultra-low-power modes and 12-bit ADC. The 256 KB Flash supports user interface firmware plus Bluetooth Low Energy (BLE) stack when paired with a CC2640. The five low-power modes and sub-microamp RTC sleep current enable multi-day operation on coin-cell batteries. AES-128 hardware encryption in the AES accelerator (present on F5xx) further supports HIPAA-relevant data privacy at the edge.
Direkomendasikan
Industrial Sensor Data Logger
Industrial data loggers needing extended local storage and robust communication map directly onto the MSP430F5438AIPZR. The 256 KB Flash stores recording configuration and compressed data, while 16 KB SRAM serves as a ring buffer for incoming samples. Four UART/SPI/I2C channels enable simultaneous communication with multi-axis sensors, an SD card, and a host PLC. The industrial -40 C to +85 C temperature range supports factory-floor operation. Adding external FRAM through SPI gives non-volatile buffering across power-cycles.
Direkomendasikan
Human-Machine Interface (HMI) Panels
HMI applications with capacitive-touch keypads, segment LCDs, and serial control links leverage the MSP430F5438AIPZR timer subsystem, ADC, and integrated LCD driver on the F5xx series. The 87 GPIO are sufficient for keypad scanning plus LED feedback and serial comm links simultaneously. The four USCI modules support the host controller (SPI/UART) plus a second display panel. Hardware DMA keeps display refresh independent of the CPU power state for jitter-free UI at low average current.
Direkomendasikan
E-Paper / Battery Powered Display Terminal
The ultra-low-power MSP430F5438AIPZR is a natural host for e-paper terminals that update slowly and require long battery life. The 256 KB Flash stores fonts, internationalization tables, and update logic, while the 16 KB SRAM buffers a full display update. The 12-bit ADC reads light sensors for automatic refresh scheduling. In low-power mode plus e-paper partial refresh, total system current can stay well under 100 uA average between user interactions, enabling coin-cell display terminals in retail and inventory tags.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MSP430F5438AIPZR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MSP430F5438APZ | MSP430F5436AIPZ | MSP430F5435AIPZ | MSP430F5438AIPZRQ1 | MSP430F5419AIPZ | MSP430F6638IPZ |
|---|---|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 18 MHz |
| Flash Memory | 256 KB | 256 KB | 192 KB | 192 KB | 256 KB | 192 KB | 256 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 12 KB | 16 KB | 16 KB | 18 KB |
| ADC | 12-bit SAR, 14 channels | 12-bit SAR, 14 channels | 12-bit SAR, 14 channels | 12-bit SAR, 14 channels | 12-bit SAR, 14 channels | 12-bit SAR, 14 channels | 12-bit SAR, 14 channels |
| GPIO Count | 87 | 87 | 87 | 87 | 87 | 87 | 87 |
| Automotive Grade | No | No | No | No | Yes (AEC-Q100) | No | No |
Diferensiator Kunci
- Higher CPU clock than non-'A' revision (vsMSP430F5438IPZ (legacy))
- Automotive grade option is a true drop-in (vsMSP430F5438AIPZRQ1)
- Dedicated VBAT pin retains RTC across power-loss (vsMSP430F5435AIPZ)
Catatan Desain
Place one 100 nF decoupling capacitor as close as possible to each DVCC/AVCC pin pair and add a single 1 µF to 10 µF bulk capacitor on the main supply rail. The MSP430F5438AIPZR supports five low-power modes; LPM3 (RTC active) draws ~1.5 µA and LPM4 (full shutdown with wake from RST/NMI) drops into the tens of nA range. Exit from LPM3 via any enabled interrupt source in single-digit microseconds. Estimated: idle currents from datasheet typical curves, supply decoupling per TI recommended layout.
The 100-pin LQFP-100 footprint uses a 0.5 mm pin pitch and 14x14 mm body. Provide at least 0.5 mm clearance between pads and 0.2 mm trace width clearance to allow for hand-rework. Avoid routing long analog (P5/P7/P8) traces alongside digital switching lines. Keep the AVSS and DVSS loops separate and tie them to a single ground point under the MCU. Place the 32.768 kHz crystal between XIN/XOUT within 5 mm and shield it with a ground guard ring routed around the traces.
Do not assume a portable battery source will stay above the brownout reset threshold during high-current radio bursts. Add a 10 µF tantalum or ceramic bulk capacitor near the DVCC pins so that transmit surges do not cause spurious resets. When migrating from MSP430F5438 (non-A) to MSP430F5438A, re-time any cycle-sensitive delay loops since the CPU maximum frequency changed from 18 MHz to 25 MHz - the loop will run ~39% faster than expected. Finally, set unused I/O pins to output-low to avoid parasitic supply leakage.
Informasi Konformitas
RoHS/REACH compliant per TI product page. Not AEC-Q100 - switch to MSP430F5438AIPZRQ1 for AEC-Q100 automotive requirements. Lead-free and halogen-free packaging designation per distributor datasheet tag.
