MSP430FR2355TPTR - 32KB FRAM 24MHz MCU w/ Analog | TI
MPN: MSP430FR2355TPTR ✓ Hoạt độngMSP430FR2355TPTR Tóm tắt
An MSP430 FRAM microcontroller is a member of the broader 16-bit ultra-low-power MCU category that combines ferroelectric RAM (FRAM) non-volatile memory with the MSP430 CPU16 core. FRAM technology unifies program and data storage into a single low-power memory, replacing traditional Flash + EEPROM partitioning. Within the power-management hierarchy, the MSP430 sits above discrete 8-bit MCUs in capability yet well below 32-bit Cortex-M devices in cost and complexity, offering a sweet spot for battery-powered edge sensing.
Key features of the MSP430FR2355TPTR include four configurable op-amp/PGA channels supporting transimpedance and instrumentation topologies, two 12-bit DACs with output buffer options, a 12-bit SAR ADC with up to 12 channels, multiple timers including a 16-bit timer with seven capture/compare registers, two eUSCI_A (UART/SPI) and two eUSCI_B (SPI/I2C) serial interfaces, a real-time clock, and a 10-bit DAC reference. The integrated analog blocks remove the need for external signal-conditioning ICs in many sensor-interface designs.
Architecturally, the device leverages TI's MSP430 CPU16 core with a 3-stage pipeline and 16-bit RISC instruction set. FRAM delivers 100× lower write energy than Flash, supports byte-level writes at full CPU speed (no erase cycles), and offers 100× higher endurance (≥ 10^14 cycles) compared to conventional Flash. The integrated smart analog combo (SAC) lets each op-amp operate in general-purpose, PGA, transimpedance, or unity-gain-buffer mode without external resistors, reducing BOM and PCB area.
Typical applications include battery-powered IoT sensor nodes, analog signal conditioning for temperature/RTD/photodiode front ends, portable medical and fitness monitors, smart-meter data acquisition, and industrial 4–20 mA loop transmitters. The combination of high-integrity FRAM storage and on-chip analog is especially attractive for data loggers that must retain calibration history across power cycles.
When designing, note that the LQFP-48 (PT) package shares pinout with other MSP430FR2xx family members, allowing upward migration (e.g., to MSP430FR2355 with more memory) and downward scaling without PCB redesign. Provide a clean analog supply (AVCC) decoupling network with 1 µF + 100 nF ceramic capacitors close to pins, and follow TI SLAA704 layout guidance for SAC routing.
This page synthesizes real-time distributor pricing, drop-in compatible alternatives in the same LQFP-48 footprint, and practical design notes that complement the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MSP430FR2355TPTR — 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 MSP430FR2355TPTR (cùng hình factor và footprint) — khác nhau ở ADC, Package, SRAM, Timers, Maximum Clock Frequency.
MSP430FR2353TPTR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MSP430FR2355TPZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MSP430FR2350TPTR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MSP430FR2155TPTR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MSP430FR2355TRGER
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MSP430FR2355TPTR Tỷ lệ tối đa & tính chất điện
| Core | MSP430 CPU16 (16-bit RISC, 3-stage pipeline) |
| Family | MSP430™ FRAM Value Line |
| Program/Data Memory (FRAM) | 32 KB (32K x 8) |
| SRAM | 4 KB |
| Tần số xung maksimum | 24 MHz |
| Supply Voltage Range (DVCC) | 1.8 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 °C to +105 °C |
| Hộp | 48-pin LQFP (PT) 7 mm × 7 mm |
| ADC | 12-bit SAR, up to 12 channels |
| DAC | 2 × 12-bit DAC with output buffer |
| Analog Front End (SAC) | 4 × Smart Analog Combo (op-amp / PGA / TIA / buffer modes) |
| Timers | Timer_A (16-bit, 7 CCRs), Timer_B (16-bit, 3 CCRs), WDT, RTC |
| Serial Interfaces | 2 × eUSCI_A (UART/SPI), 2 × eUSCI_B (SPI/I2C) |
| GPIO | Up to 43 I/O pins (multiplexed) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 2 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
Cấu hình chân MSP430FR2355TPTR
| Chân 1 | DVCC — Digital supply voltage (1.8 V to 3.6 V) |
| Chân 2 | AVCC — Analog supply voltage |
| Chân 3 | AVSS — Analog ground reference |
| Chân 4 | P1.0 — Port 1 GPIO / TA0.0 / DAC0_OUT |
| Chân 5 | P1.1 — Port 1 GPIO / TA0.1 |
| Chân 6 | P1.2 — Port 1 GPIO / TA0.2 |
| Chân 7 | P1.3 — Port 1 GPIO / TA0.3 |
| Chân 8 | P1.4 — Port 1 GPIO / TB0.0 / UCA0STE |
| Chân 9 | P1.5 — Port 1 GPIO / TB0.1 / UCA0CLK |
| Chân 10 | P1.6 — Port 1 GPIO / TB0.2 / UCA0RXD / UCB0SOMI |
| Chân 11 | P1.7 — Port 1 GPIO / TB0.3 / UCA0TXD / UCB0SIMO |
| Chân 12 | P2.0 — Port 2 GPIO / TA1.0 |
| Chân 13 | P2.1 — Port 2 GPIO / TA1.1 |
| Chân 14 | P2.2 — Port 2 GPIO / TA1.2 |
| Chân 15 | P2.3 — Port 2 GPIO / TA1.3 / UCB0STE |
| Chân 16 | P2.4 — Port 2 GPIO / TA1.4 / UCB0CLK |
| Chân 17 | P2.5 — Port 2 GPIO / TB1.1 / UCB0RXD / UCB0SOMI |
| Chân 18 | P2.6 — Port 2 GPIO / TB1.2 / UCB0TXD / UCB0SIMO |
| Chân 19 | P2.7 — Port 2 GPIO / TB1.3 / UCB0STE |
| Chân 20 | P3.0 — Port 3 GPIO / UCA1STE |
| Chân 21 | P3.1 — Port 3 GPIO / UCA1CLK |
| Chân 22 | P3.2 — Port 3 GPIO / UCA1RXD / UCA1SOMI |
| Chân 23 | P3.3 — Port 3 GPIO / UCA1TXD / UCA1SIMO |
| Chân 24 | P3.4 — Port 3 GPIO / UCB1STE / A10 |
| Chân 25 | P3.5 — Port 3 GPIO / UCB1CLK / A11 |
| Chân 26 | P3.6 — Port 3 GPIO / UCB1RXD / UCB1SOMI / DAC1_OUT |
| Chân 27 | P3.7 — Port 3 GPIO / UCB1TXD / UCB1SIMO |
| Chân 28 | P4.0 — Port 4 GPIO / A0 |
| Chân 29 | P4.1 — Port 4 GPIO / A1 |
| Chân 30 | P4.2 — Port 4 GPIO / A2 |
| Chân 31 | P4.3 — Port 4 GPIO / A3 |
| Chân 32 | P4.4 — Port 4 GPIO / A4 / VREF+ |
| Chân 33 | P4.5 — Port 4 GPIO / A5 / VREF- |
| Chân 34 | P4.6 — Port 4 GPIO / A6 / DAC0_OUT |
| Chân 35 | P4.7 — Port 4 GPIO / A7 / DAC1_OUT |
| Chân 36 | P5.0 — Port 5 GPIO / A8 |
| Chân 37 | P5.1 — Port 5 GPIO / A9 |
| Chân 38 | P5.2 — Port 5 GPIO / XIN |
| Chân 39 | P5.3 — Port 5 GPIO / XOUT |
| Chân 40 | TEST/SBWTCK — Test mode / Spy-Bi-Wire TCK |
| Chân 41 | RSTn/SBWTDIO — Reset (active low) / Spy-Bi-Wire data |
| Chân 42 | DVSS — Digital ground |
| Chân 43 | DVCC — Digital supply voltage |
| Chân 44 | P6.0 — Port 6 GPIO / SAC0OA (Smart Analog Combo 0) |
| Chân 45 | P6.1 — Port 6 GPIO / SAC0OAO |
| Chân 46 | P6.2 — Port 6 GPIO / SAC1OA |
| Chân 47 | P6.3 — Port 6 GPIO / SAC1OAO |
| Chân 48 | P6.4 — Port 6 GPIO / SAC2OA |
Ứng dụng tiêu biểu
MSP430FR2355TPTR phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Analog Signal Conditioning for RTD / Bridge Sensors, Portable Medical and Fitness Monitor, Smart Meter Data Acquisition, Industrial 4-20 mA Loop Transmitter, Automotive Body and Sensor Module.
Battery-Powered IoT Sensor Node
The MSP430FR2355TPTR is well suited to battery-powered IoT sensor nodes because of its MSP430FR2xx value-line architecture that achieves < 1 µA standby current in LPM4.5 retention. The 32 KB FRAM provides byte-level writes at 100× lower energy than Flash with ≥ 10^14 cycle endurance, ideal for buffering and logging sensor data across multiple sleep/wake cycles. The four SAC channels enable direct connection of RTD, photodiode, or bridge-sensor front ends without external op-amps. Two eUSCI_A and two eUSCI_B serial interfaces support SPI sensors and I2C peripherals simultaneously, while the 12-bit ADC samples at up to 200 ksps for periodic measurements.
Được đề xuất
Analog Signal Conditioning for RTD / Bridge Sensors
The MSP430FR2355TPTR's four Smart Analog Combo (SAC) channels configurable as PGAs with gain up to 32×, plus two 12-bit buffered DACs for excitation, form a complete bridge-sensor signal chain on a single IC. This eliminates external instrumentation amplifiers and reduces the analog front end to the sensor, decoupling caps, and the MCU. The 12-bit SAR ADC samples at up to 200 ksps, sufficient for strain-gauge and weigh-scale applications; the on-chip 1.2 V VREF ensures ratiometric accuracy over temperature. Pin-compatible same-family migration enables scaling to higher-memory parts without PCB rework.
Được đề xuất
Portable Medical and Fitness Monitor
The MSP430FR2355TPTR is a strong fit for portable medical and fitness devices where its integrated 12-bit ADC and SAC op-amps handle photoplethysmography (PPG) and bio-impedance analog front ends directly. The unified 32 KB FRAM securely stores calibration constants and session logs across power cycles, while the RTC plus ultra-low-power timer infrastructure enables accurate sleep-current measurements. The LQFP-48 (PT) 7×7 mm package fits wearable form factors, and the -40 °C to +105 °C operating range supports skin-contact temperature extremes during activity. Two eUSCI serial ports drive BLE or Wi-Fi companion modules.
Được đề xuất
Smart Meter Data Acquisition
In smart-meter designs, the MSP430FR2355TPTR offers 32 KB of unified FRAM to retain tamper logs, calibration tables, and rolling consumption profiles even through battery-backup events. The two 12-bit DACs drive analog output channels for legacy 4–20 mA or 0–10 V transducer loops, while the integrated 12-bit ADC samples voltage and current at the metering node. The RTC enables time-of-use tariff scheduling, and the device's AES hardware accelerator secures DLMS/COSEM or wireless M-Bus payloads. Operating up to 105 °C supports outdoor cabinet environments.
Được đề xuất
Industrial 4-20 mA Loop Transmitter
The MSP430FR2355TPTR can drive a 4–20 mA current loop directly via one of its 12-bit DAC outputs combined with an external MOSFET, eliminating a dedicated DAC IC. The 12-bit ADC provides loop-readback for diagnostics, and the integrated SAC channel conditions the sensor input before digitisation. FRAM storage retains configuration even when the loop is unpowered. The wide -40 °C to +105 °C range supports outdoor industrial cabinets, and the device's < 1 µA standby current extends battery life in loop-powered HART smart-transmitter designs.
Được đề xuất
Automotive Body and Sensor Module
The AEC-Q100 qualified MSP430FR2355TPZR (a pin-compatible variant of the MSP430FR2355TPTR) is well suited to automotive body-electronics and sensor modules such as seat-occupancy detection, HVAC blend-door control, and battery-management auxiliaries. The 24 MHz CPU handles LIN slave stacks and capacitive-touch sensing, while the four SAC channels drive thermistor and pressure-sensor signal chains. Operating from -40 °C to +105 °C across the full automotive grade-2 envelope, the part offers an excellent balance of cost and analog integration.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MSP430FR2355TPTR — 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 | MSP430FR2353TPTR | MSP430FR2355TPZR | MSP430FR2350TPTR | MSP430FR2155TPTR | MSP430FR2355TRGER |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | LQFP-48 (PT) | LQFP-48 (PT) - same | LQFP-48 (PT) - same | LQFP-48 (PT) - same | LQFP-48 (PT) - same | LQFP-48 (PT) - same |
| Core Clock | 24 MHz MSP430 CPU16 | 24 MHz MSP430 CPU16 | 24 MHz MSP430 CPU16 | 24 MHz MSP430 CPU16 | 24 MHz MSP430 CPU16 | 24 MHz MSP430 CPU16 |
| FRAM | 32 KB | 16 KB | 32 KB | 16 KB | 32 KB | 32 KB |
| SRAM | 4 KB | 2 KB | 4 KB | 2 KB | 4 KB | 4 KB |
| Smart Analog Combo (SAC) Channels | 4 | 4 | 4 | 2 | 0 | 4 |
| DAC Count | 2 × 12-bit | 2 × 12-bit | 2 × 12-bit | 1 × 12-bit | 2 × 12-bit | 2 × 12-bit |
| Automotive (AEC-Q100) | No | No | Yes | No | No | No |
Bảo phân biệt quan trọng
- Four Smart Analog Combo channels with two 12-bit DACs on-die (vsMSP430FR2155TPTR)
- 32 KB FRAM with ≥ 10^14 write endurance (vsMSP430FR2350TPTR)
- Pin-compatible AEC-Q100 automotive upgrade path (vsMSP430FR2355TPTR vs MSP430FR2355TPZR)
Ghi chú thiết kế
Provide separate AVCC and DVCC rails to the MSP430FR2355TPTR, even when both connect to the same 3.3 V source. Place a 1 µF + 100 nF ceramic bypass pair close to each AVCC/DVCC pin and a small ferrite bead between DVCC and AVCC to keep digital switching noise out of the analog block. The SAC channels settle faster and the 12-bit ADC achieves its 200 ksps throughput with lower noise when AVCC is held above 2.4 V — operation below 2.0 V forces the ADC into degraded performance mode per the datasheet.
Route the four Smart Analog Combo (SAC) traces as differential pairs with continuous ground reference on one side; avoid crossing them with digital I/O or PWM signals. Place the 1.2 V VREF decoupling capacitor (0.1 µF X7R) within 2 mm of the VREF+ pin. If the design uses the internal DACs as excitation sources, route their outputs away from ADC input traces to prevent digital-coupling errors. Following TI SLAA704 layout guidance minimises SAC offset drift and improves ADC INL to < 1 LSB.
Do not exceed the 3.6 V absolute-maximum DVCC; even brief transients from an inductive load or hot-plug event can latch the MCU into a permanent failure. Always release the RSTn pin through a 10 kΩ pull-up to DVCC with a 1 nF cap to GND to ensure clean POR behaviour. The TEST/SBWTCK pin must be left floating or pulled low for normal operation — driving it high enters Spy-Bi-Wire test mode and may prevent code execution. Estimated: at 24 MHz active current ~ 1.2 mA from the datasheet, a 200 mAh CR2032 coin cell delivers roughly 60 hours of continuous operation before stepping below 2.0 V.
Thông tin tuân thủ
RoHS and lead-free per TI product page. The MSP430FR2355TPTR itself is not AEC-Q100; the pin-compatible MSP430FR2355TPZR is AEC-Q100 qualified. Halogen-free per TI MSL2/green rating.
