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Texas Instruments MSP430FR69891IPZ
- Part No.:
- MSP430FR69891IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430FR69891IPZ.pdf
- Description:
- IC MCU 16BIT 128KB FRAM 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
MSP430FR69891IPZ from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 128KB FRAM, 2KB RAM, integrated LCD driver (up to 320 segments), 12-bit ADC with 16 external inputs, and Extended Scan Interface (ESI) for precision metering. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and portable medical devices.
For engineers reviewing the MSP430FR69891IPZ datasheet, MSP430FR69891IPZ pinout, MSP430FR69891IPZ application, or MSP430FR69891IPZ equivalent, key selection factors include FRAM endurance (1015 writes), RTC current in LPM3.5 (0.35 µA), ESI support for background gas/water/heat measurement, and I2C Bootloader (BSL) configuration.
Technical Context
The MSP430FR69891IPZ implements the MSP430 CPUXV2 core with 16 registers and supports seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its clock system integrates DCO, HFXT (up to 24 MHz), LFXT (32 kHz), and VLO, enabling precise timing control across operating conditions.
Peripherals include dual eUSCI_A (UART/IrDA/SPI) and dual eUSCI_B (I²C/SPI), three-channel DMA, 32-bit hardware multiplier, CRC16/CRC32 engines, AES256 encryption coprocessor, and capacitive touch I/O on all P1–P10 and PJ pins without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation - enables deterministic real-time control with low gate count and energy per instruction. |
| Nonvolatile Memory | 128KB FRAM - provides flash-equivalent retention with SRAM-like write speed (125 ns/word) and 1015 write endurance. |
| RAM | 2KB SRAM - sufficient for stack, buffers, and real-time data processing in ultra-low-power metering applications. |
| ADC | 12-bit ADC12_B with internal reference and 16 external input channels - supports high-accuracy sensor interfacing for flow/temperature measurement. |
| Low-Power Mode Current | LPM3.5 (RTC active): 0.35 µA typical - enables decade-long battery life in water/heat meters with calendar-aware wakeups. |
| Bootloader | I²C BSL (not UART) - allows secure, low-pin-count firmware updates via two-wire interface without UART hardware. |
| Package | LQFP-100 (14 mm × 14 mm) - standard surface-mount footprint compatible with industrial reflow and automated optical inspection. |
Pinout & Package
LQFP-100 package with 14 mm × 14 mm body size and 0.5 mm pitch; thermally enhanced for stable operation in extended temperature ranges (–40°C to 85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O / TA0/TA1 / UCB0 / LCD / ESI test | Multi-function ports supporting timer capture/compare, SPI/I²C, segment drive, and ESI calibration signals. |
| P2.0–P2.7 | General-purpose I/O / TB0 / COMx / RTCCLK / DMAE0 | Drive LCD common lines (COM0–COM7), support RTC clock input, and enable DMA event triggering. |
| P3.0–P3.7 | General-purpose I/O / UCB1 / UCA1 / TB0 | Dual USCI peripherals (I²C master/slave + UART/SPI) with dedicated TB0 timer outputs for display timing. |
| PJ.0–PJ.5 | JTAG/SBW / TCK/TMS/TDI/TDO / LFXIN/LFXOUT | Debug interface and low-frequency crystal connections - essential for calibration of RTC and ESI timing accuracy. |
| AVCC1/AVSS1–3 | Analog power supply and ground | Isolated analog domain ensures clean reference for ADC and LCD bias generation, minimizing noise coupling. |
| ESIDVCC/ESIDVSS | Extended Scan Interface power domain | Dedicated analog supply for ESI circuitry - critical for stable, low-drift capacitance measurements in metering. |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory architecture | Enables instant nonvolatile logging of sensor data without wear leveling or erase cycles - ideal for frequent timestamped metering records. |
| Extended Scan Interface (ESI) | Performs background capacitance-to-digital conversion for water/heat/gas volume measurement without CPU intervention - reduces active time by >90%. |
| Integrated LCD_C driver | Drives up to 320 segments with programmable contrast and static/2–8 mux modes - eliminates external display controller in portable meters. |
| AES256 security coprocessor | Hardware-accelerated encryption/decryption with true random number seed - meets regulatory requirements for secure firmware and data transmission. |
| Capacitive touch I/O | Supports self- and mutual-capacitance sensing on all GPIO (P1–P10, PJ) without external components - enables intuitive HMI in field-deployed devices. |
Applications
| Water Meters | Heat Cost Allocators |
|---|---|
Use Scenario: Ultrasonic or mechanical flow measurement with long-term data logging and tamper detection. IC Role / Device Role / Timing Role: Primary MCU managing ESI-based flow transducers, RTC-calendar timestamping, FRAM-based audit logs, and LCD display. Use Value: 0.35 µA RTC current enables >10-year battery life; FRAM endurance supports daily 1000+ log entries over device lifetime. |
Use Scenario: Thermal energy allocation in multi-tenant buildings using temperature differential and flow integration. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating RTD/thermistor readings, computing kWh equivalents, and updating LCD with billing data. Use Value: Integrated 12-bit ADC with internal reference eliminates external precision voltage references; ESI enables simultaneous multi-sensor scanning. |
| Portable Medical Meters | Data Loggers |
Use Scenario: Battery-powered glucose, blood pressure, or spirometry devices requiring FDA-grade data integrity and low-power operation. IC Role / Device Role / Timing Role: Secure data acquisition node with AES256-encrypted storage, capacitive touch UI, and calibrated analog front-end. Use Value: Hardware AES and true RNG satisfy IEC 62304 cryptographic requirements; FRAM ensures no data loss during unexpected power loss. |
Use Scenario: Environmental or industrial condition monitoring with periodic sensor reads, local analysis, and wireless upload. IC Role / Device Role / Timing Role: Autonomous logger executing scheduled measurements, storing results in FRAM, and waking radio only when needed. Use Value: LPM4.5 shutdown current (0.02 µA) extends shelf life; CRC32 engine validates integrity of multi-day logged datasets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6989IPZ | UART BSL; identical FRAM/RAM/peripherals but different bootloader interface | Preferred where UART-based field updates are required and I²C is unavailable | Select when serial debug port is reserved for diagnostics rather than firmware update. |
| MSP430FR59891IPM | 64-pin LQFP; 64KB FRAM; no LCD_C or ESI; fewer I/O (48 vs. 83) | Suitable for compact sensor nodes without display or advanced metrology needs | Choose for space-constrained designs where display and ESI are unnecessary and cost reduction is critical. |
Compared with MSP430FR69891IPZ, the MSP430FR6989IPZ offers UART BSL flexibility but lacks I²C-only security isolation, while the MSP430FR59891IPM trades display/ESI capability for smaller footprint and lower cost - making each optimal for distinct metering subsystem roles.
Availability
MSP430FR69891IPZ is available at Aetrix Electronics and suitable for water meters, heat cost allocators, and portable medical meters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MSP430FR69891IPZ 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-level innovation.
The MSP430 ULP FRAM portfolio targets energy-constrained applications such as utility metering and portable instrumentation, combining ferroelectric memory with ultra-low-power architecture to eliminate flash write delays and wear limitations.
FAQ
What distinguishes MSP430FR69891IPZ from MSP430FR6989IPZ?
The MSP430FR69891IPZ features an I²C Bootloader (BSL), whereas the MSP430FR6989IPZ uses a UART BSL. Both share identical FRAM (128KB), RAM (2KB), peripherals (ESI, LCD_C, AES256), and LQFP-100 packaging. The BSL difference affects firmware update interface selection - I²C minimizes pin count and enhances security isolation in the MSP430FR69891IPZ.
Does MSP430FR69891IPZ support real-time clock functionality with battery backup?
Yes, the MSP430FR69891IPZ integrates RTC_C with calendar and alarm functions, operating in LPM3.5 mode at 0.35 µA typical. It supports external 32-kHz crystal (LFXT) connection via PJ.4/LFXIN and PJ.5/LFXOUT, enabling accurate timekeeping during main power loss when backed by a coin cell on the RTC supply rail.
Can MSP430FR69891IPZ drive a 320-segment LCD without external components?
Yes, the integrated LCD_C peripheral in MSP430FR69891IPZ drives up to 320 segments in static, 2-, 3-, 4-, 6-, or 8-mux configurations. It includes internal charge pump, contrast control, and frame frequency adjustment - eliminating need for external LCD bias ICs or discrete voltage dividers in meter displays.
What is the role of the Extended Scan Interface (ESI) in MSP430FR69891IPZ?
The ESI in MSP430FR69891IPZ performs high-precision, low-power capacitance-to-digital conversion for fluid/gas/thermal volume measurement. It operates autonomously in background mode, supporting up to 16 input channels and four independent current sources - enabling continuous metrology without CPU wakeups or external ADCs.
Is MSP430FR69891IPZ qualified for industrial temperature range operation?
Yes, the MSP430FR69891IPZ is specified for operation from –40°C to +85°C ambient temperature. Its LQFP-100 package (14 mm × 14 mm) and internal thermal protection circuits ensure reliable performance in uncontrolled environments such as outdoor water meters and building HVAC systems.
MSP430FR69891IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 128KB (128K 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 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR69891IPZ FAQ
1.How can I place an order for MSP430FR69891IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR69891IPZ 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 MSP430FR69891IPZ reliable?
The price and inventory of MSP430FR69891IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR69891IPZ is usually 5 days.
3.What payment methods are accepted for MSP430FR69891IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR69891IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR69891IPZ?
MSP430FR69891IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR69891IPZ 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 MSP430FR69891IPZ?
For technical support, including MSP430FR69891IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR69891IPZ requirements.
6.How does Aetrix verify that MSP430FR69891IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430FR69891IPZ 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 MSP430FR69891IPZ meets industry standards.
7.What is the process for return or replacement of MSP430FR69891IPZ?
All MSP430FR69891IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR69891IPZ, 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 MSP430FR69891IPZ part is unused and in its original packaging.
Return procedure for MSP430FR69891IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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