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Texas Instruments MSP430FR6820IG56R
- Part No.:
- MSP430FR6820IG56R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR6820IG56R.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,711
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Product details
Overview
MSP430FR6820IG56R from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller in a 56-pin TSSOP package, featuring 32KB FRAM, 2KB RAM, 12-bit ADC with 8 external inputs, integrated LCD driver (116 segments), and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and sensor nodes.
For engineers reviewing the MSP430FR6820IG56R datasheet, MSP430FR6820IG56R pinout, MSP430FR6820IG56R application, or MSP430FR6820IG56R equivalent, key selection criteria include LPM3.5 RTC current (0.35 µA), FRAM endurance (10¹⁵ writes), capacitive touch I/O capability, and absence of AES encryption-critical for secure metering vs. cost-sensitive industrial sensing.
Technical Context
The MSP430FR6820IG56R implements the MSP430 CPUXV2 core with 16 registers and executes instructions at up to 16 MHz using a factory-trimmed DCO clock source. Its low-power operation relies on seven defined modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown), enabled by SVS brownout detection and programmable port pullup/pulldown.
Peripherals are memory-mapped and managed via DMA channels: two eUSCI_A modules support UART with auto-baud detection and IrDA, while two eUSCI_B modules handle I²C with multi-slave addressing and SPI up to 10 Mbps. The device lacks HFXIN/HFOUT and AES256-confirmed exclusions per family documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 with 16 registers; enables deterministic real-time control in resource-constrained embedded systems |
| FRAM Capacity | 32 KB nonvolatile memory; supports ultra-fast 125 ns/word writes and 10¹⁵ write-cycle endurance without wear leveling |
| ADC Resolution | 12-bit SAR ADC with internal reference and sample-and-hold; delivers ±1 LSB INL for precision sensor signal acquisition |
| Low-Power Mode LPM3.5 | 0.35 µA typical current with RTC active; enables decade-long battery life in calendar-aware metering applications |
| LCD Driver | Integrated 116-segment driver with contrast control; eliminates external display controller in portable instrumentation |
| eUSCI Interfaces | Two eUSCI_A (UART/IrDA/SPI) + two eUSCI_B (I²C/SPI); provides dual-protocol communication without external transceivers |
| Supply Voltage Range | 1.8 V to 3.6 V; compatible with single-cell Li-ion, alkaline, or coin-cell power sources |
Pinout & Package
Package: TSSOP-56 (6.1 mm × 14 mm), lead pitch 0.5 mm, thermal pad not present. Pinout validated per TI SLASE23E Rev. August 2018, Figure 4-3 (56-pin DGG package for MSP430FR682x).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / A0 / C0 / VREF− | Analog input / reference sink | Supports differential ADC measurements and external voltage reference configuration |
| P1.6 / UCB0SIMO / BSL_DAT | I²C data / BSL interface | Enables in-system programming via I²C bootloader when configured as BSL_DAT |
| P2.0 / UCA0SIMO / BSL_TX | UART TX / BSL interface | Provides serial firmware update path using UART bootloader (device has UART BSL) |
| P6.3 / COM0 | LCD common output | Drives first common electrode in multiplexed LCD displays up to 4-mux configuration |
| PJ.4 / LFXIN | Low-frequency crystal input | Accepts 32.768 kHz crystal for RTC timing; requires external 12.5 pF load capacitance per TI design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory space enabling simultaneous code execution and data logging without erase cycles |
| Capacitive Touch I/O | All GPIO pins support CTSIO without external components-reduces BOM cost and PCB area in human-interface designs |
| Real-Time Clock (RTC) | Calendar mode with alarm interrupt; consumes only 0.35 µA in LPM3.5-ideal for time-stamped utility metering |
| Hardware CRC Engine | CRC16 and CRC32 acceleration offloads checksum computation from CPU, improving firmware reliability and latency |
| Three-Channel DMA | Enables autonomous peripheral-to-memory transfers (e.g., ADC → FRAM), reducing CPU wakeups and power consumption |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Compact, battery-powered heat distribution units measuring radiator surface temperature and flow time. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, LCD display, RTC-based billing intervals, and IR/UART data upload. Use Value: 0.35 µA LPM3.5 current extends 10-year battery life; FRAM enables reliable daily log storage without flash wear-out. | Use Scenario: Submetering devices capturing energy/water/gas consumption with time-of-use tariff support. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, tamper detection, secure data storage, and optical/RF communication. Use Value: Integrated 12-bit ADC and 116-segment LCD driver eliminate external ICs; 32KB FRAM stores 30+ days of hourly consumption logs. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless, battery-operated HVAC controllers with ambient temperature/humidity sensing and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating capacitive touch buttons, environmental sensors, display refresh, and BLE subsystem wake signaling. Use Value: All-GPIO capacitive touch capability removes dedicated touch controller; ultra-low active current (100 µA/MHz) preserves battery during polling. | Use Scenario: Handheld diagnostic tools (e.g., pulse oximeters, glucose meters) requiring precise analog measurement and long shelf life. IC Role / Device Role / Timing Role: Signal acquisition processor performing ADC conversion, digital filtering, and nonvolatile result storage before wireless transmission. Use Value: 12-bit ADC with internal reference ensures clinical-grade accuracy; FRAM's radiation resistance prevents data corruption in medical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6822IG56R | 64 KB FRAM (vs. 32 KB); identical package, peripherals, and power profile | Preferred where extended firmware size or larger data logging buffers are required | Select when future firmware expansion or longer data retention periods justify higher memory cost |
| MSP430FR6920IPMR | 64-pin LQFP package; adds AES256 encryption coprocessor and HFXIN/LFXIN oscillator support | Suitable for secure metering with encrypted firmware updates and high-accuracy timing | Choose when cryptographic security or HF crystal stability is mandatory-requires PCB redesign |
Compared with MSP430FR6822IG56R, the MSP430FR6820IG56R trades FRAM capacity for lower unit cost in fixed-function metering; versus MSP430FR6920IPMR, it omits AES and HFXT but retains identical low-power performance in TSSOP form factor.
Availability
MSP430FR6820IG56R is available at Aetrix Electronics and suitable for utility metering, portable medical diagnostics, and industrial sensor management requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6820IG56R 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 delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.
The MSP430FRxx FRAM microcontroller product line targets ultra-low-power sensing and measurement applications-designed to extend battery life while integrating FRAM, LCD, and metrology-grade analog peripherals in a single chip.
FAQ
Does the MSP430FR6820IG56R support hardware AES encryption?
No, the MSP430FR6820IG56R does not implement AES256. Per TI SLASE23E documentation, AES is excluded from all MSP430FR682x and MSP430FR687x devices. Security-critical applications requiring encryption must use MSP430FR69xx variants like MSP430FR6920IPMR instead. The MSP430FR6820IG56R relies on software-based cryptography if needed.
What is the maximum operating frequency of the MSP430FR6820IG56R?
The MSP430FR6820IG56R supports up to 16 MHz system clock via its factory-trimmed DCO oscillator. This frequency is achievable across the full 1.8 V–3.6 V supply range and enables real-time processing of sensor data and communication stacks without external crystals. Higher frequencies require HFXT, which is not implemented in this device.
Can the MSP430FR6820IG56R drive a 4-mux LCD display?
Yes, the MSP430FR6820IG56R integrates the LCD_C module supporting up to 116 segments and up to 4-mux operation. Its 16 common outputs (COM0–COM15) and segment drivers are fully functional in the TSSOP-56 package. Designers must configure P6.x and PJ.x pins as LCD outputs and provide appropriate bias voltage per TI's LCD design guidelines.
Is the MSP430FR6820IG56R pin-compatible with the MSP430FR6920?
No, the MSP430FR6820IG56R (TSSOP-56) is not pin-compatible with the MSP430FR6920IPMR (LQFP-64). They differ in package type, pin count, and peripheral pin mappings-for example, LFXIN/LFXOUT are on PJ.4/PJ.5 in both, but COM0 is on P6.3 in MSP430FR6820IG56R versus P5.0 in MSP430FR6920IPMR. Migration requires PCB redesign.
What bootloader interface does the MSP430FR6820IG56R support?
The MSP430FR6820IG56R supports UART-based Bootloader (BSL) using P2.0 (BSL_TX) and P2.1 (BSL_RX). It does not support I²C BSL-those variants are designated with "1" suffixes (e.g., MSP430FR68221). Firmware updates can be performed in-system via UART without JTAG hardware, simplifying field maintenance for deployed MSP430FR6820IG56R units.
MSP430FR6820IG56R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 46
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6820IG56R FAQ
1.How can I place an order for MSP430FR6820IG56R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6820IG56R 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 MSP430FR6820IG56R reliable?
The price and inventory of MSP430FR6820IG56R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6820IG56R is usually 5 days.
3.What payment methods are accepted for MSP430FR6820IG56R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6820IG56R transactions.
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4.How is shipping managed for MSP430FR6820IG56R?
MSP430FR6820IG56R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6820IG56R 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 MSP430FR6820IG56R?
For technical support, including MSP430FR6820IG56R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6820IG56R requirements.
6.How does Aetrix verify that MSP430FR6820IG56R is sourced from the original manufacturer or authorized distributors?
All MSP430FR6820IG56R 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 MSP430FR6820IG56R meets industry standards.
7.What is the process for return or replacement of MSP430FR6820IG56R?
All MSP430FR6820IG56R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6820IG56R, 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 MSP430FR6820IG56R part is unused and in its original packaging.
Return procedure for MSP430FR6820IG56R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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