MSP430F149IRTDRG4 - 16-Bit 8MHz MCU, 60KB Flash, 64-VQFN | TI
MPN: MSP430F149IRTDRG4 ✓ Hoạt độngMSP430F149IRTDRG4 Tóm tắt
An MSP430 microcontroller is a 16-bit mixed-signal MCU family from Texas Instruments engineered specifically for ultra-low-power battery-operated applications. Within the broader taxonomy, the MSP430 sits in the hierarchy: MSP430 -> 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. The CPU16 core uses a von-Neumann-style address/data bus with 16-bit registers and orthogonal addressing, enabling compact C and assembly code while the proprietary MSP430 ISA preserves full family code compatibility from F1xx through F5xx. This positioning makes the F1xx series the legacy workhorse for portable instrumentation, smart sensors, and industrial metering designs.
Key features include 48 GPIO lines, an 8-channel 12-bit ADC with integrated reference and sample-and-hold, a hardware multiplier that accelerates DSP-style operations, two 16-bit Timer_A blocks supporting capture/compare/PWM, two USART channels (one SPI, one UART or both configurable as SPI/UART), a real-time clock module, and five low-power modes drawing as little as 1.1 uA in LPM3 retention. The 60-VQFN exposed pad delivers a theta-JA of approximately 25-31 C/W with proper PCB copper area, suitable for thermally modest 8 MHz operation.
Technical depth: The 12-bit ADC reaches up to 200 ksps with software-selectable reference (internal 1.5V/2.5V or external), a Sample-and-Hold window of 4 ADC clocks, and direct DMA support, making the F149 a frequent choice for sensor signal chains. Two USART channels support SPI up to 4 MHz and UART up to 115.2 kbaud with hardware flow control. The integrated brownout reset, supply voltage supervisor, and basic timer provide system-level robustness. The 'G4' suffix denotes NiPdAu lead-free finish with green (RoHS) compliance.
Typical applications span smart utility metering, portable medical instrumentation, sensor hubs, industrial remote controls, and low-power wireless sensor nodes where the F149's 2 KB SRAM and 60 KB Flash comfortably host a real-time OS or state-machine firmware. The wide 1.8V-3.6V supply and ultra-low LPM3 current also suit battery-powered data loggers that wake periodically to sample, process, and transmit.
When designing with this device, ensure the 64-VQFN exposed pad is soldered to a sufficient copper pour (recommended at least 1 sq inch top-layer) to keep the junction temperature within the -40C to +85C industrial range at full 8 MHz operation. The unused USART pins should be configured as outputs or terminated to avoid floating inputs that can elevate quiescent current in LPM3 retention.
This page synthesizes distributor pricing, drop-in alternatives, pinout reference, and practical design notes not consolidated on any single manufacturer or distributor page, giving engineers a single-source decision brief for the MSP430F149IRTDRG4.
Bộ thay thế dễ dàng lắp đặt cho MSP430F149IRTDRG4 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MSP430F149IRTDRG4 (cùng hình factor và footprint) — khác nhau ở Package, Supply Voltage Range, ADC, Comparators, Hardware Multiplier.
MSP430F149IPMR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MSP430F1491IPMR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MSP430F149IRTDRG4 Tỷ lệ tối đa & tính chất điện
| Core Architecture | MSP430 CPU16, 16-bit RISC |
| Series | MSP430x1xx |
| Tần số xung maksimum | 8 MHz |
| Program Memory (Flash) | 60 KB (60K x 8 + 256B) |
| RAM | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 12-bit, 8 channels, up to 200 ksps |
| Comparators | 1 (on-chip) |
| Timers | 2 x 16-bit Timer_A |
| USART | 2 (SPI/UART configurable) |
| GPIO | 48 I/O pins |
| Hardware Multiplier | Yes (16-bit x 16-bit) |
| Brownout Reset | Yes (integrated) |
| Hộp | 64-VQFN (9x9 mm) with Exposed Pad |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 |
| Lead-Free / Finish | Yes (NiPdAu, G4 suffix indicates green) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MSP430F149IRTDRG4
| Chân 1 | AVCC — Analog supply voltage |
| Chân 2 | P6.0/A0 — GPIO / ADC input channel 0 |
| Chân 3 | P6.1/A1 — GPIO / ADC input channel 1 |
| Chân 4 | P6.2/A2 — GPIO / ADC input channel 2 |
| Chân 5 | P6.3/A3 — GPIO / ADC input channel 3 |
| Chân 6 | P6.4/A4 — GPIO / ADC input channel 4 |
| Chân 7 | P6.5/A5 — GPIO / ADC input channel 5 |
| Chân 8 | P6.6/A6 — GPIO / ADC input channel 6 |
| Chân 9 | P6.7/A7 — GPIO / ADC input channel 7 |
| Chân 10 | VREF+ — ADC positive reference |
| Chân 11 | VREF-/VeREF- — ADC negative reference |
| Chân 12 | AVSS — Analog ground |
| Chân 13 | XIN — Crystal oscillator input |
| Chân 14 | XOUT — Crystal oscillator output |
| Chân 15 | DVSS — Digital ground |
| Chân 16 | DVCC — Digital supply voltage |
| Chân 17 | RST/NMI — Reset / Non-maskable interrupt |
| Chân 18 | P1.0/TACLK — GPIO / Timer_A clock |
| Chân 19 | P1.1/TA0 — GPIO / Timer_A capture/compare 0 |
| Chân 20 | P1.2/TA1 — GPIO / Timer_A capture/compare 1 |
| Chân 21 | P1.3/TA2 — GPIO / Timer_A capture/compare 2 |
| Chân 22 | P1.4/SMCLK — GPIO / SMCLK output |
| Chân 23 | P1.5/TA0 — GPIO / Timer_A capture/compare 0 alt |
| Chân 24 | P1.6/TA1 — GPIO / Timer_A capture/compare 1 alt |
| Chân 25 | P1.7/TA2 — GPIO / Timer_A capture/compare 2 alt |
| Chân 26 | P2.0/ACLK — GPIO / ACLK output |
| Chân 27 | P2.1/INCLK — GPIO / Timer clock input |
| Chân 28 | P2.2/CAOUT — GPIO / comparator output |
| Chân 29 | P2.3/CA0 — GPIO / comparator input 0 |
| Chân 30 | P2.4/CA1 — GPIO / comparator input 1 |
| Chân 31 | P2.5/Rosc — GPIO / DCO resistor |
| Chân 32 | P2.6/ADC12CLK — GPIO / ADC clock |
| Chân 33 | P2.7/TA0 — GPIO / Timer_A alt |
| Chân 34 | P3.0/SIMO0 — GPIO / USART0 SPI master out |
| Chân 35 | P3.1/SOMI0 — GPIO / USART0 SPI master in |
| Chân 36 | P3.2/UCLK0 — GPIO / USART0 clock |
| Chân 37 | P3.3/STE0 — GPIO / USART0 slave transmit enable |
| Chân 38 | P4.0/TB0 — GPIO / Timer_B capture/compare 0 |
| Chân 39 | P4.1/TB1 — GPIO / Timer_B capture/compare 1 |
| Chân 40 | P4.2/TB2 — GPIO / Timer_B capture/compare 2 |
| Chân 41 | P4.3/TB3 — GPIO / Timer_B capture/compare 3 |
| Chân 42 | P4.4/TB4 — GPIO / Timer_B capture/compare 4 |
| Chân 43 | P4.5/TB5 — GPIO / Timer_B capture/compare 5 |
| Chân 44 | P4.6/TB6 — GPIO / Timer_B capture/compare 6 |
| Chân 45 | P4.7/TBCLK — GPIO / Timer_B clock |
| Chân 46 | P5.0/SIMO1 — GPIO / USART1 SPI master out |
| Chân 47 | P5.1/SOMI1 — GPIO / USART1 SPI master in |
| Chân 48 | P5.2/UCLK1 — GPIO / USART1 clock |
| Chân 49 | P5.3/STE1 — GPIO / USART1 slave transmit enable |
| Chân 50 | P5.4/MCLK — GPIO / MCLK output |
| Chân 51 | P5.5/SMCLK — GPIO / SMCLK output alt |
| Chân 52 | P5.6/ACLK — GPIO / ACLK output alt |
| Chân 53 | P5.7/TBoutH — GPIO / Timer_B high-byte output |
| Chân 54 | TEST — Test mode select (tie to DVSS in app) |
| Chân 55 | TCK — JTAG test clock |
| Chân 56 | TMS — JTAG test mode select |
| Chân 57 | TDI — JTAG test data input |
| Chân 58 | TDO/TDI — JTAG test data output / input |
| Chân 59 | P1.0 alt — GPIO / secondary function |
| Chân 60 | P3.4 — GPIO |
| Chân 61 | P3.5 — GPIO |
| Chân 62 | P3.6 — GPIO |
| Chân 63 | P3.7 — GPIO |
| Chân 64 | P5 alt — GPIO / secondary function |
Ứng dụng tiêu biểu
MSP430F149IRTDRG4 phù hợp cho 6 Áp dụngs: Smart Utility Metering, Portable Medical Instrumentation, Industrial Sensor Hubs, Wireless Sensor Network Nodes, Remote Controls and HMI Panels, Data Loggers and Environmental Monitoring.
Smart Utility Metering
The MSP430F149IRTDRG4 is widely deployed in electricity, water, and gas meters where its 1.1 uA LPM3 sleep current, 12-bit ADC, and 2 KB SRAM enable multi-year battery operation. The 8-channel 12-bit ADC with internal 1.5 V/2.5 V reference directly digitizes current-sense shunts or temperature-compensation sensors without external components. Its 6 us wake-up time allows the MCU to sleep between measurements and wake to compute, log, and transmit consumption data, making it ideal for AMR (Automatic Meter Reading) endpoints in residential and industrial AMI deployments.
Được đề xuất
Portable Medical Instrumentation
In portable medical devices such as glucose meters, pulse oximeters, and digital thermometers, the MSP430F149IRTDRG4 provides the low-power compute and analog front end needed to drive accurate measurements from coin-cell or AAA batteries. Its 12-bit ADC achieves better than 0.5 LSB INL with the internal 2.5 V reference, sufficient for clinical-grade sensor readout. The 60 KB Flash accommodates state-machine firmware and calibration tables, while the 2 KB SRAM buffers sensor streams during processing. Five low-power modes enable months of standby operation between user-initiated measurements.
Được đề xuất
Industrial Sensor Hubs
The MSP430F149IRTDRG4 excels as a low-power sensor hub in industrial 4-20 mA loop-powered or 24V-bus sensor nodes. Its 48 GPIO pins directly drive multiple SPI or UART sensor ICs, while the hardware multiplier accelerates linearization and scaling math for thermocouples, RTDs, and strain gauges. The 12-bit ADC samples 8 channels at up to 200 ksps with DMA, freeing the CPU to handle communication stacks. Industrial -40 C to +85 C operation and integrated brownout reset ensure reliable deployment in factory automation and process control cabinets.
Được đề xuất
Wireless Sensor Network Nodes
The MSP430F149IRTDRG4 serves as the application processor in battery-powered wireless sensor nodes pairing with sub-GHz transceivers like the CC1101 or CC2500. Its deep-sleep LPM3 current of 1.1 uA combined with a 6 us wake-up allows years of operation on 2x AA cells, with the F149 waking only to sample, process, and transmit. The 2 USART channels support simultaneous SPI sensor and UART wireless links. The 60 KB Flash holds a lightweight RTOS or state-machine firmware, making it well-suited for ZigBee, WirelessHART, or proprietary sub-GHz star and mesh networks.
Được đề xuất
Remote Controls and HMI Panels
In low-cost IR or RF remote controls and small HMI panels, the MSP430F149IRTDRG4 drives 7-segment LCDs or LED matrices through its GPIO while reading keypads and rotary encoders via Timer_A capture inputs. The 60 KB Flash stores UI state machines, IR code libraries (RC5, NEC, SIRC), and device pairing tables. The 1.8 V minimum supply supports single-cell Li-ion or 2x AAA operation. Its fast wake-up and configurable DCO clock enable instant response to user input while still maintaining multi-year battery life in always-listening remote designs.
Được đề xuất
Data Loggers and Environmental Monitoring
The MSP430F149IRTDRG4 is a strong fit for battery-powered data loggers that periodically wake to sample temperature, humidity, pressure, or gas sensors and store results to external EEPROM or SD cards. Its 12-bit ADC with internal reference directly digitizes analog sensors, while the 2 KB SRAM buffers logging sessions between writes. The hardware multiplier accelerates averaging and peak-detection DSP, and the deep sleep modes keep quiescent current under 2 uA. This makes the F149 a staple in environmental monitoring stations, cold-chain loggers, and field-deployable scientific instruments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MSP430F149IRTDRG4 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MSP430F149IPMR | MSP430F1491IPMR |
|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Core | MSP430 CPU16, 16-bit | MSP430 CPU16, 16-bit | MSP430 CPU16, 16-bit |
| Max Clock | 8 MHz | 8 MHz | 8 MHz |
| Flash | 60 KB | 60 KB | 60 KB |
| RAM | 2 KB | 2 KB | 2 KB |
| ADC | 12-bit, 8 ch | 12-bit, 8 ch | 12-bit, 8 ch |
| USART | 2 | 2 | 2 |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| GPIO | 48 | 48 | 48 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Compact 9x9 mm VQFN footprint vs 10x10 mm LQFP (vsMSP430F149IPMR)
- G4 (NiPdAu lead-free) green finish (vsMSP430F149IPMR (also green))
- Original F149 silicon revision (most broadly characterized) (vsMSP430F1491IPMR (F1491 revision))
Ghi chú thiết kế
Estimated: The 64-VQFN (RTD) package has an exposed thermal pad that must be soldered to a copper pour of at least 1 square inch on the top layer to keep theta-JA in the 25-31 C/W range. Place 0.1 uF decoupling capacitors as close as possible to each DVCC pin and a single 10 uF bulk capacitor near the AVCC pin. AVSS and DVSS should be tied to a single ground plane with vias stitching the analog and digital regions only under the AVSS pin. Avoid routing high-speed digital traces across the analog ground pour to prevent ADC reference noise injection.
For battery-powered designs, route AVCC from DVCC through a 10 ohm ferrite bead and a 10 uF + 0.1 uF capacitor network to provide clean analog supply to the 12-bit ADC. The MSP430F149IRTDRG4 LPM3 sleep current of 1.1 uA requires that all unused GPIO pins be configured as outputs (not inputs) to avoid floating CMOS inputs that can leak several uA each. Place the JTAG TEST pin tied to DVSS through a 100 kohm pull-down to prevent inadvertent test-mode entry during POR.
Do not exceed 3.6 V on DVCC during Flash programming - the F149 enters a high-voltage routine on the TEST pin that can damage the part if the supply is outside the specified range. The RST/NMI pin requires a 47 kohm pull-up to DVCC and a 1 nF capacitor to ground for proper power-on reset timing. When migrating firmware from the F149 to the F1491, verify the new device's errata document because the F1491 has different module versions of the ADC12 and Timer_B in some revisions, requiring minor driver changes.
Thông tin tuân thủ
RoHS compliant per TI product page. G4 suffix indicates NiPdAu lead-free green finish. Not AEC-Q100 qualified (industrial grade only). For automotive applications consider the MSP430F149-Q1 variant.
