MSP430F1491IRTDR - 8MHz 60KB Flash MCU | Texas Instruments
料号： MSP430F1491IRTDR ✓ 量产中MSP430F1491IRTDR 概述
An MCU is a programmable system-on-chip that integrates a CPU, memory, and peripherals. The MSP430 family uses a 16-bit RISC architecture with 16-bit registers and constant generators to support efficient control and measurement workloads. The MSP430F1491IRTDR combines this processing core with Flash and SRAM memory and mixed-signal peripherals, positioning it between a basic microcontroller and a more specialized embedded controller.
Verified source data identifies an 8 MHz CPU, 60 KB Flash organized as 60K x 8 plus 256 bytes, 2 KB SRAM, and a 12-bit ADC. The device also includes a comparator plus SPI and UART connectivity. The 64-pin VQFNP package exposes the integrated mixed-signal and communication resources while supporting compact surface-mount placement. Detailed electrical limits, memory-map details, and peripheral pin assignments require the manufacturer datasheet.
The MSP430 architecture is intended for low-power embedded systems. The supplied manufacturer description specifically identifies the MSP430 family as ultra-low-power, while the distributor listing identifies this part as an MSP430x1xx mixed-signal microcontroller. These characteristics make the MCU relevant to battery-operated instruments, embedded sensing nodes, industrial measurement systems, and low-power control products.
Typical design considerations include confirming the device's supply-voltage limits, ADC input range, clock configuration, communication-pin mapping, and exposed-pad layout against the datasheet. Because the verified data does not provide operating voltage, temperature, ADC input-channel count, GPIO count, or exact timing limits, those values are marked as data needed rather than inferred. The source data also identifies no verified price or current stock quantity, so commercial details should be confirmed with the supplier.
This page combines verified manufacturer and distributor attributes with application guidance, comparison considerations, and design notes intended to support early engineering evaluation. It does not substitute for the complete Texas Instruments datasheet, which remains the controlling source for pinout, electrical characteristics, timing, memory behavior, and qualification information.
直接替换替代料： MSP430F1491IRTDR ——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： MSP430F1491IRTDR （相同外形与封装尺寸） ——差异在于 Comparator, Flash Memory, Package, ADC Resolution, Supply Voltage Range.
MSP430F1491IRTDT
✅ 直接替换联系询价
查看数据手册 →MSP430F147IRTDR
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F169IRTDT
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F1491IPMR
✅ 直接替换联系询价
查看数据手册 →MSP430F1491IRTDR 最大额定值与电气特性
| CPU Architecture | 16-bit MSP430 RISC |
| 最大时钟频率 | 8 MHz |
| Flash Memory | 60 KB, 60K x 8 + 256 bytes |
| SRAM | 2 KB |
| ADC Resolution | 12-bit |
| ADC Type | 12-bit mixed-signal ADC |
| Comparator | Integrated comparator |
| Communication Interfaces | SPI and UART |
| 封装 | 64-pin VQFNP (RTD), 9 x 9 mm |
| 安装类型 | Surface mount |
| Device Type | Mixed-signal microcontroller |
MSP430F1491IRTDR 64-pin vqfnp (rtd), 9 x 9 mm 引脚配置指南
MSP430F1491IRTDR（64-pin vqfnp (rtd), 9 x 9 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： MSP430F1491IRTDR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MSP430F1491IRTDR 适用于 6 应用s: Battery-Powered Portable Measurement, Industrial Sensor Node, Data Logger, Low-Power Control System, Communication Gateway, Portable Medical or Environmental Monitor.
Battery-Powered Portable Measurement
MSP430F1491IRTDR fits portable instruments that combine an 8 MHz 16-bit control core with local program memory and analog measurement. The 60 KB Flash supports embedded firmware, while 2 KB SRAM provides working storage for acquisition and control state. Its 12-bit ADC can digitize sensor outputs, and the comparator can support thresholding or simple event detection. The MSP430 family's ultra-low-power positioning is useful when the product spends substantial time between measurements, although the verified data does not state sleep or active current.
推荐
Industrial Sensor Node
The MSP430F1491IRTDR can serve as the embedded controller in an industrial sensor node that accepts analog inputs and forwards information through a serial link. Its 12-bit ADC provides a defined conversion resolution, while the comparator can monitor a signal independently of the main conversion path. SPI can connect to sensors or storage devices, and UART supports a simple host or service interface. The 64-pin RTD package provides access to the device's mixed-signal and communication resources, subject to exact pin assignment verification.
推荐
Data Logger
For a compact data logger, MSP430F1491IRTDR combines 60 KB of Flash for firmware and 2 KB of SRAM for active buffering. A sensor signal can be digitized with the 12-bit ADC, then stored or transmitted through SPI or UART depending on the selected memory and communications architecture. The device's 8 MHz CPU provides a dedicated control platform for sampling sequencing, data validation, and low-power operating states. Exact storage endurance, ADC timing, and power figures must be taken from the manufacturer documentation.
推荐
Low-Power Control System
MSP430F1491IRTDR is suitable for embedded control tasks that require more local computation and memory than a basic 8-bit controller. The 16-bit RISC CPU, 60 KB Flash, 2 KB SRAM, ADC, comparator, SPI, and UART create a compact mixed-signal control platform. It can manage sensor inputs, actuator decisions, and communications in one device while using the MSP430 family's low-power design orientation. The actual duty cycle, active current, sleep current, and wake-up latency are not included in the verified data and require datasheet confirmation.
推荐
Communication Gateway
MSP430F1491IRTDR can act as a small embedded gateway between sensors and an external controller when a local ADC and serial interface are required. SPI can connect to a higher-bandwidth sensor or storage component, while UART provides a straightforward host connection. The 60 KB Flash allows application firmware and configuration handling to remain local, and 2 KB SRAM can support protocol state and short data buffers. A gateway design should verify UART electrical levels, SPI mode, pin multiplexing, and timing from the datasheet.
推荐
Portable Medical or Environmental Monitor
MSP430F1491IRTDR can serve as the embedded control platform in a portable environmental monitor or medical-adjacent measurement device when the design needs a 12-bit ADC, comparator, and low-power MCU architecture. The ADC can digitize sensor signals, the comparator can provide threshold detection, and UART or SPI can connect to a display, logger, or external processing module. Because the verified data does not specify medical qualification, safety classification, accuracy limits, or regulatory status, compliance and measurement-performance requirements must be evaluated separately.
推荐
工程参考数据： MSP430F1491IRTDR ——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 | MSP430F1491IRTDT | MSP430F147IRTDR | MSP430F169IRTDT | MSP430F1491IPMR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
关键差异点
- Integrated mixed-signal resources in one MCU （对比 General-purpose microcontroller without verified 12-bit ADC and comparator integration)
- Local program and working memory （对比 MSP430F1491IRTDT with unquantified memory details)
- Dedicated serial connectivity （对比 MSP430F147IRTDR with unquantified interface details)
- Mixed-signal MCU positioning （对比 MSP430F169IRTDT with unquantified peripheral details)
设计说明
The verified data does not provide supply voltage or current limits, so do not assume a 3.3 V-only system or a particular regulator choice. Confirm the device's supply range and absolute maximum ratings in the official datasheet, then size the rail for the ADC, comparator, digital I/O, and connected communications devices. For a battery-powered design, estimate average current from active and low-duty-cycle sleep states rather than using the maximum clock frequency as a power proxy.
Treat the 64-pin RTD package as a mixed-signal layout problem. Place decoupling structures at the supply pins, keep analog inputs away from fast digital edges, route comparator and ADC-sensitive nets with controlled impedance and short paths, and follow the datasheet's exposed-pad recommendation. Because the supplied data confirms a VQFNP RTD package but does not provide its land pattern or pad dimensions, use the official package drawing rather than copying a generic QFN footprint.
Do not select a related MSP430x1xx part solely from the family name or ordering suffix. Check the exact RTD package dimensions, pin names, ADC channels, UART/SPI multiplexing, memory organization, clock settings, and exposed-pad requirements. The supplied cross-reference data identifies candidates but does not establish complete compatibility; use the manufacturer ordering table and datasheet for production approval.
The target is identified as a 64-pin device, but the verified snippets do not provide the complete pin map. Do not infer pin assignments from the ADC, SPI, or UART feature names alone. Download the official MSP430F1491 documentation, identify alternate-function multiplexing, reserve unused pins according to device guidance, and validate the firmware against the selected board-level pin plan before release.
合规信息
The verified data does not include manufacturer compliance declarations for this exact MPN. Do not infer RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status from generic distributor listings.
