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Texas Instruments MSP430F5527IPNR
- Part No.:
- MSP430F5527IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F5527IPNR.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:838
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Product details
Overview
MSP430F5527IPNR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, 12-bit ADC (200 ksps, 16-channel autoscan), four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), RTC, hardware multiplier, and 3-channel DMA. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring USB connectivity and precise analog acquisition.
For engineers reviewing the MSP430F5527IPNR datasheet, MSP430F5527IPNR pinout, MSP430F5527IPNR application, or MSP430F5527IPNR equivalent, key selection criteria include USB 2.0 endpoint count (8), ADC channel count (16 external + 2 internal), I/O count (63), LPM3 current (1.9 µA at 2.2 V), and LQFP-80 package compatibility for industrial data loggers and USB-connected measurement systems.
Technical Context
The MSP430F5527IPNR implements a 16-bit RISC CPU with constant generators and extended memory addressing, paired with a unified clock system featuring FLL stabilization, dual crystal support (XT1 up to 32 kHz, XT2 up to 32 MHz), and low-power oscillators (VLO, REFO). Its power architecture integrates a programmable LDO core regulator and supply supervision with brownout detection.
Peripherals are tightly coupled to low-power operation: the 12-bit ADC supports sample-and-hold and autoscan across 16 external inputs; USB functionality includes integrated 3.3-V/1.8-V power system and USB-PLL; and timer subsystems provide capture/compare capability with shadow registers (TB0) and flexible PWM generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 25-MHz max system clock - enables efficient C code execution and deterministic real-time response. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, 3.3-V/1.8-V power system, and 8 endpoints - eliminates need for external transceiver or voltage regulators in USB device designs. |
| ADC Resolution & Speed | 12-bit SAR ADC with 200 ksps sampling rate and autoscan across 16 external channels - supports high-fidelity sensor data acquisition without CPU intervention. |
| Low-Power Mode LPM3 | 1.9 µA at 2.2 V with RTC, watchdog, and full RAM retention - enables multi-year battery life in always-on time-stamped logging applications. |
| Memory Configuration | 64 KB flash + 6 KB + 2 KB RAM - sufficient for USB stack, sensor firmware, and buffered data storage in standalone edge devices. |
| I/O Count | 63 GPIO pins with configurable drive strength and Schmitt-trigger inputs - supports complex peripheral interfacing including UART, I²C, SPI, and analog sensor arrays. |
| Wake-up Time | 3.5 µs from LPM3 to active mode - ensures rapid response to external interrupts while maintaining ultra-low average power. |
Pinout & Package
LQFP-80 package (12 mm × 12 mm, 0.5-mm pitch), RoHS-compliant, thermally enhanced for sustained operation in industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Non-maskable interrupt input | Active-low reset with built-in pullup; doubles as NMI source for critical fault handling without external components. |
| DP / DM | USB differential data pair | Direct connection to USB host; integrated termination and biasing eliminate need for external resistors or ESD protection diodes. |
| PUR | USB pullup resistor control | Internal 1.5-kΩ pullup enable for USB enumeration - software-controllable to manage device attachment timing. |
| AVCC / AVSS | Analog power supply / ground | Dedicated 3.3-V analog domain with separate ground plane - isolates noise-sensitive ADC and reference circuits from digital switching. |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC accuracy ±20 ppm - enables calendar-time stamping and low-power periodic wake-up. |
| XT2IN / XT2OUT | High-frequency crystal oscillator terminals | Accepts crystals up to 32 MHz for precise system clocking - required for full-speed USB timing compliance and high-throughput ADC sampling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY + power system | Reduces BOM count by 7+ components (transceiver, LDOs, terminations) and simplifies USB compliance testing. |
| 12-bit ADC with 16 external channels + autoscan | Enables simultaneous monitoring of multiple sensors (e.g., temperature, humidity, pressure) without multiplexer or firmware overhead. |
| Four independent 16-bit timers with capture/compare | Supports concurrent PWM generation, input capture for encoder counting, and interval timing - ideal for motor control and pulse-width measurement. |
| Unified clock system with FLL and dual crystal support | Allows seamless switching between low-power RTC clock (32 kHz) and high-accuracy USB clock (48 MHz derived from XT2) without external clock sources. |
| 3-channel hardware DMA | Offloads data movement from CPU during ADC conversions, USB transfers, and memory-to-memory operations - cuts active-mode time by up to 40%. |
Applications
| Industrial Data Logger | USB-Connected Sensor Hub |
|---|---|
Use Scenario: Standalone environmental monitor logging temperature, humidity, and CO₂ every 10 seconds to internal flash, with USB mass-storage-class export on demand. IC Role / Device Role / Timing Role: Central controller managing sensor I²C reads, timestamping via RTC, buffering data in RAM, and emulating USB MSC upon host connection. Use Value: 1.9 µA LPM3 current extends 2×AA battery life beyond 3 years; integrated USB PHY avoids external transceiver cost and layout complexity. |
Use Scenario: Desktop accessory aggregating readings from 8 analog sensors (thermocouples, strain gauges) and streaming real-time data to PC via CDC ACM virtual COM port. IC Role / Device Role / Timing Role: Analog front-end processor with 12-bit ADC autoscan, USB device controller handling CDC class descriptors and bulk IN transfers. Use Value: 200 ksps ADC throughput supports >25 ksamples/s aggregate rate; 63 GPIOs route all sensor signals and reference voltages without external muxing. |
| Portable Power Meter | USB Firmware Updater Node |
Use Scenario: Handheld energy meter measuring AC line voltage/current via isolated sigma-delta ADCs, computing RMS and harmonics, and exporting CSV via USB. IC Role / Device Role / Timing Role: Real-time computation engine executing DSP algorithms on ADC samples, synchronizing to 50/60 Hz line cycle using TA0 capture, and serving USB HID reports. Use Value: Hardware multiplier accelerates FFT and RMS calculations; 3.5 µs wake-up ensures sub-cycle response to zero-crossing events. |
Use Scenario: Field-deployable module that accepts new firmware over USB, validates checksums, and reprograms flash of connected embedded subsystems via UART or SPI. IC Role / Device Role / Timing Role: Secure bootloader host with USB DFU class support, flash controller access, and cryptographic signature verification before update. Use Value: Integrated 64 KB flash stores both application and bootloader; USB-PLL guarantees accurate 48-MHz clock for DFU timing compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power USB MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5529IPN | 128 KB flash, 8 KB + 2 KB RAM, identical peripherals and pinout - differs only in memory size. | Preferred when firmware image exceeds 64 KB or requires larger RAM buffers for USB audio or complex protocol stacks. | Select MSP430F5529IPN if future firmware growth or dual-bank OTA updates are required; otherwise MSP430F5527IPNR offers optimal cost/performance balance. |
| MSP430F5525IPN | 32 KB flash, 4 KB + 2 KB RAM, same USB/ADC/timer set and LQFP-80 package - fully pin-compatible. | Suitable for space-constrained firmware with minimal USB descriptor tables and lightweight sensor fusion logic. | Choose MSP430F5525IPN for cost-sensitive volume production where memory headroom is not needed; verify flash usage stays below 32 KB. |
Compared with MSP430F5529IPN and MSP430F5525IPN, the MSP430F5527IPNR delivers the optimal trade-off: sufficient 64 KB flash for robust USB device class implementations (CDC, HID, MSC) and 6 KB RAM for double-buffered USB transfers, without over-provisioning memory that increases unit cost.
Availability
MSP430F5527IPNR is available at Aetrix Electronics and suitable for industrial data loggers, USB-connected sensor hubs, portable power meters, and field-programmable firmware updater nodes requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5527IPNR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power design and industrial-grade reliability.
The MSP430F55xx product line was engineered specifically for USB-enabled, battery-operated measurement systems requiring precision analog integration, real-time responsiveness, and multi-year operational life - targeting sensor networks, portable instrumentation, and smart industrial peripherals.
FAQ
What USB device classes does the MSP430F5527IPNR natively support?
The MSP430F5527IPNR supports USB 2.0 full-speed (12 Mbps) with hardware endpoints enabling CDC ACM (virtual COM port), HID (keyboard/mouse/gamepad), and MSC (mass storage) classes. TI's USB stack in MSP430Ware provides certified class drivers; no external PHY or USB controller is needed because the MSP430F5527IPNR integrates the USB-PHY, USB-PLL, and dual-voltage power system on-chip.
Does the MSP430F5527IPNR require external crystal oscillators for USB operation?
Yes - the MSP430F5527IPNR requires a 4–25 MHz crystal on XT2IN/XT2OUT to generate the precise 48-MHz USB clock via its integrated USB-PLL. A 32.768-kHz crystal on XIN/XOUT is optional but recommended for RTC accuracy. The internal VLO or REFO cannot meet USB timing jitter requirements, so external XT2 is mandatory for USB functionality in the MSP430F5527IPNR.
How many analog input channels can the MSP430F5527IPNR's ADC acquire simultaneously?
While the MSP430F5527IPNR's 12-bit ADC has 16 external input channels, it acquires one sample at a time. However, its autoscan mode allows sequential conversion of up to 16 channels without CPU intervention, completing a full scan in under 80 µs at maximum speed. Simultaneous sampling requires external analog multiplexers or parallel ADCs; the MSP430F5527IPNR does not support true simultaneous multi-channel acquisition.
Is the MSP430F5527IPNR pin-compatible with other MSP430F55xx LQFP-80 variants?
Yes - the MSP430F5527IPNR shares identical pinout, electrical characteristics, and peripheral mapping with MSP430F5529IPN, MSP430F5525IPN, and MSP430F5521IPN in the LQFP-80 (PN) package. All use the same functional block diagram (Figure 4-1), same I/O port structure (P1–P8), and identical USB (DP/DM/PUR), crystal (XIN/XOUT/XT2IN/XT2OUT), and power (DVCC/DVSS/AVCC/AVSS) terminal assignments.
What is the maximum achievable ADC sampling rate on the MSP430F5527IPNR?
The MSP430F5527IPNR's ADC12_A module achieves a maximum throughput of 200 ksps (kilo-samples per second) when configured with minimum conversion delay, single-channel mode, and ADC12CLK sourced from MODOSC or divided SMCLK. At this rate, each 12-bit conversion completes in 5 µs; autoscan of 16 channels takes ~80 µs total. Higher rates are not supported - the MSP430F5527IPNR's ADC specification is capped at 200 ksps per the SLAS590P datasheet.
MSP430F5527IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 63
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5527IPNR FAQ
1.How can I place an order for MSP430F5527IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5527IPNR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F5527IPNR reliable?
The price and inventory of MSP430F5527IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5527IPNR is usually 5 days.
3.What payment methods are accepted for MSP430F5527IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5527IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5527IPNR?
MSP430F5527IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5527IPNR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F5527IPNR?
For technical support, including MSP430F5527IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5527IPNR requirements.
6.How does Aetrix verify that MSP430F5527IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430F5527IPNR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F5527IPNR meets industry standards.
7.What is the process for return or replacement of MSP430F5527IPNR?
All MSP430F5527IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5527IPNR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F5527IPNR part is unused and in its original packaging.
Return procedure for MSP430F5527IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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