MSP430FR2355TPTR - 32KB FRAM 24MHz MCU w/ Analog | TI
料号： MSP430FR2355TPTR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.85 | $5.85 |
| 10 | $5.27 | $52.70 |
| 100 | $4.68 | $468.00 |
| 500 | $4.21 | $2,105.00 |
| 1,000 | $3.74 | $3,740.00 |
| 3,000 | $3.2 | $9,600.00 |
MSP430FR2355TPTR 概述
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.
直接替换替代料： MSP430FR2355TPTR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MSP430FR2355TPTR （相同外形与封装尺寸） ——差异在于 ADC, Package, SRAM, Timers, Maximum Clock Frequency.
快速对比工具——选择替代料号进行并排对比：
MSP430FR2353TPTR
✅ 直接替换📋 参考替代料（不在目录中）
MSP430FR2355TPZR
✅ 直接替换📋 参考替代料（不在目录中）
MSP430FR2350TPTR
✅ 直接替换📋 参考替代料（不在目录中）
MSP430FR2155TPTR
✅ 直接替换📋 参考替代料（不在目录中）
MSP430FR2355TRGER
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MSP430FR2355TPTR 最大额定值与电气特性
| 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 |
| 最大时钟频率 | 24 MHz |
| Supply Voltage Range (DVCC) | 1.8 V to 3.6 V |
| 工作温度范围 | -40 °C to +105 °C |
| 封装 | 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) |
| 安装类型 | Surface Mount |
| MSL 等级 | 2 (per JEDEC J-STD-020) |
| RoHS 状态 | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
MSP430FR2355TPTR 引脚配置
| 引脚 1 | DVCC — Digital supply voltage (1.8 V to 3.6 V) |
| 引脚 2 | AVCC — Analog supply voltage |
| 引脚 3 | AVSS — Analog ground reference |
| 引脚 4 | P1.0 — Port 1 GPIO / TA0.0 / DAC0_OUT |
| 引脚 5 | P1.1 — Port 1 GPIO / TA0.1 |
| 引脚 6 | P1.2 — Port 1 GPIO / TA0.2 |
| 引脚 7 | P1.3 — Port 1 GPIO / TA0.3 |
| 引脚 8 | P1.4 — Port 1 GPIO / TB0.0 / UCA0STE |
| 引脚 9 | P1.5 — Port 1 GPIO / TB0.1 / UCA0CLK |
| 引脚 10 | P1.6 — Port 1 GPIO / TB0.2 / UCA0RXD / UCB0SOMI |
| 引脚 11 | P1.7 — Port 1 GPIO / TB0.3 / UCA0TXD / UCB0SIMO |
| 引脚 12 | P2.0 — Port 2 GPIO / TA1.0 |
| 引脚 13 | P2.1 — Port 2 GPIO / TA1.1 |
| 引脚 14 | P2.2 — Port 2 GPIO / TA1.2 |
| 引脚 15 | P2.3 — Port 2 GPIO / TA1.3 / UCB0STE |
| 引脚 16 | P2.4 — Port 2 GPIO / TA1.4 / UCB0CLK |
| 引脚 17 | P2.5 — Port 2 GPIO / TB1.1 / UCB0RXD / UCB0SOMI |
| 引脚 18 | P2.6 — Port 2 GPIO / TB1.2 / UCB0TXD / UCB0SIMO |
| 引脚 19 | P2.7 — Port 2 GPIO / TB1.3 / UCB0STE |
| 引脚 20 | P3.0 — Port 3 GPIO / UCA1STE |
| 引脚 21 | P3.1 — Port 3 GPIO / UCA1CLK |
| 引脚 22 | P3.2 — Port 3 GPIO / UCA1RXD / UCA1SOMI |
| 引脚 23 | P3.3 — Port 3 GPIO / UCA1TXD / UCA1SIMO |
| 引脚 24 | P3.4 — Port 3 GPIO / UCB1STE / A10 |
| 引脚 25 | P3.5 — Port 3 GPIO / UCB1CLK / A11 |
| 引脚 26 | P3.6 — Port 3 GPIO / UCB1RXD / UCB1SOMI / DAC1_OUT |
| 引脚 27 | P3.7 — Port 3 GPIO / UCB1TXD / UCB1SIMO |
| 引脚 28 | P4.0 — Port 4 GPIO / A0 |
| 引脚 29 | P4.1 — Port 4 GPIO / A1 |
| 引脚 30 | P4.2 — Port 4 GPIO / A2 |
| 引脚 31 | P4.3 — Port 4 GPIO / A3 |
| 引脚 32 | P4.4 — Port 4 GPIO / A4 / VREF+ |
| 引脚 33 | P4.5 — Port 4 GPIO / A5 / VREF- |
| 引脚 34 | P4.6 — Port 4 GPIO / A6 / DAC0_OUT |
| 引脚 35 | P4.7 — Port 4 GPIO / A7 / DAC1_OUT |
| 引脚 36 | P5.0 — Port 5 GPIO / A8 |
| 引脚 37 | P5.1 — Port 5 GPIO / A9 |
| 引脚 38 | P5.2 — Port 5 GPIO / XIN |
| 引脚 39 | P5.3 — Port 5 GPIO / XOUT |
| 引脚 40 | TEST/SBWTCK — Test mode / Spy-Bi-Wire TCK |
| 引脚 41 | RSTn/SBWTDIO — Reset (active low) / Spy-Bi-Wire data |
| 引脚 42 | DVSS — Digital ground |
| 引脚 43 | DVCC — Digital supply voltage |
| 引脚 44 | P6.0 — Port 6 GPIO / SAC0OA (Smart Analog Combo 0) |
| 引脚 45 | P6.1 — Port 6 GPIO / SAC0OAO |
| 引脚 46 | P6.2 — Port 6 GPIO / SAC1OA |
| 引脚 47 | P6.3 — Port 6 GPIO / SAC1OAO |
| 引脚 48 | P6.4 — Port 6 GPIO / SAC2OA |
典型应用
MSP430FR2355TPTR 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： MSP430FR2355TPTR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Four Smart Analog Combo channels with two 12-bit DACs on-die （对比 MSP430FR2155TPTR)
- 32 KB FRAM with ≥ 10^14 write endurance （对比 MSP430FR2350TPTR)
- Pin-compatible AEC-Q100 automotive upgrade path （对比 MSP430FR2355TPTR vs MSP430FR2355TPZR)
设计说明
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.
合规信息
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.
