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Texas Instruments MSP430F46161IPZR
- Part No.:
- MSP430F46161IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F46161IPZR.pdf
- Description:
- IC MCU 16BIT 92KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,970
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Product details
Overview
MSP430F46161IPZR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 92KB+256B Flash/ROM, 4KB RAM, integrated LCD driver for up to 160 segments, dual 16-bit timers (Timer_A3 and Timer_B7), USCI_A0 (UART/IrDA/SPI), USCI_B0 (SPI/I²C), USART1 (UART/SPI), DMA controller with three channels, comparator, and supply voltage supervisor. It operates from 1.8 V to 3.6 V and targets portable medical devices and electronic metering.
For engineers reviewing the MSP430F46161IPZR datasheet, MSP430F46161IPZR pinout, MSP430F46161IPZR application, or MSP430F46161IPZR equivalent, key selection considerations include its 100-pin TQFP package, absence of ADC12 module (vs. MSP430F4616), LCD segment drive capability, low-power modes with sub-6-µs wake-up, and JTAG-based debug support via MSP-FET430UIF.
Technical Context
The MSP430F46161IPZR implements the MSP430x461x1 family architecture with CPUX core, hardware multiplier, FLL+ clock system, and dual power domains (DVCC/DVSS and AVCC/AVSS). It supports four crystal oscillator configurations: XT1 (watch/standard), XT2 (high-frequency), DCO, and VLO - enabling flexible clock tree design for precision timing and ultra-low-power operation.
Its peripheral set excludes the 12-bit ADC12 module present in the MSP430x461x variant, confirmed by TI documentation stating "MSP430F461x1 devices are identical to MSP430F461x devices, with the exception that the ADC12 module is not implemented." All other modules - including USCI_A0, USCI_B0, USART1, LCD_A, Timer_A3, Timer_B7, comparator, and SVS - remain fully functional.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUX with 16 registers and constant generators; enables single-cycle register operations and high code efficiency. |
| Memory | 92KB+256B Flash/ROM + 4KB RAM; sufficient for complex embedded firmware with LCD UI and communication stacks. |
| Supply Voltage | 1.8 V to 3.6 V; compatible with single-cell Li-ion, coin-cell, or regulated 3.3 V rails without level-shifting. |
| Low-Power Modes | Five power-saving modes; standby current 1.3 µA and off-mode (RAM retention) 0.22 µA enable multi-year battery life. |
| Wake-Up Time | <6 µs from standby to active mode; supports rapid response to external events while minimizing energy per interrupt. |
| LCD Driver | Integrated LCD_A module driving up to 160 segments with 1/2–1/4 bias and regulated charge pump; eliminates external LCD bias IC. |
| Communication Interfaces | USCI_A0 (UART/IrDA/SPI), USCI_B0 (SPI/I²C), USART1 (UART/SPI); provides dual asynchronous UARTs and multiple synchronous options for sensor/communication hub designs. |
Pinout & Package
Package: 100-pin TQFP (PZ), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant. Thermal pad exposed on underside for enhanced heat dissipation in continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt Input | Active-low reset initiation and high-priority NMI event handling; critical for safe shutdown and fault recovery. |
| P1.0/TA0 | Timer_A Capture/Compare / BSL Transmit | Primary timer channel 0 I/O and back-channel serial loader (BSL) TX for firmware updates over UART. |
| P4.0/UTXD1 | USART1 Transmit Data | Dedicated UART TX for second serial interface - used for host communication or diagnostics independent of USCI_A0. |
| P7.0/UCA0STE/S33 | USCI_A0 Slave Transmit Enable / LCD Segment 33 | Enables SPI slave mode for peripheral expansion; doubles as LCD segment output when not used for SPI. |
| COM0–COM3 | LCD Backplane Outputs | Four common outputs supporting static, 2-mux, 3-mux, or 4-mux LCD configurations up to 160 segments. |
| TCK/TMS/TDO/TDI | JTAG Debug Interface | Fully compliant IEEE 1149.1 interface for programming, boundary scan, and real-time debugging using MSP-FET430UIF. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-Power Operation | 0.22 µA off-mode current with RAM retention enables decade-scale battery life in sealed metering applications. |
| Integrated LCD Driver | On-chip regulated charge pump and 160-segment support eliminate external bias circuitry and reduce BOM count by ≥3 components. |
| Dual Serial Interfaces | USCI_A0 + USART1 provide two independent UARTs - one for sensor telemetry, one for host connectivity - without software bit-banging. |
| Hardware DMA Controller | Three-channel DMA offloads data movement from CPU during LCD refresh, UART transfers, or timer captures - reducing active time and power. |
| Supply Monitoring | Programmable SVS with SVSIN input detects brownout conditions and triggers reset or interrupt before logic corruption occurs. |
Applications
| Portable Medical Devices | Smart Energy Meters |
|---|---|
Use Scenario: Handheld glucose monitors and pulse oximeters requiring long battery life, alphanumeric LCD display, and low-noise analog sensing interfaces. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, LCD rendering, button input, and BLE/UART telemetry - with precise ACLK-driven real-time clock for timestamping. Use Value: Sub-µA standby current extends CR2032 battery life beyond 5 years; integrated LCD driver reduces PCB area and eliminates external bias IC cost. | Use Scenario: Residential electricity meters needing tamper-resistant firmware, metrology-grade timing, and segmented LCD for kWh display and tariff indicators. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, driving 128-segment LCD, logging consumption data to FRAM, and communicating via optical port or RS-485. Use Value: Dual UARTs allow simultaneous optical head communication and PLC modem interface; SVS prevents corrupted EEPROM writes during voltage sag. |
| Industrial Control Panels | Asset Tracking Beacons |
Use Scenario: Local HMI panels in HVAC or lighting control systems with push-button navigation, status LEDs, and LCD feedback. IC Role / Device Role / Timing Role: Standalone UI processor handling keypad scanning, LCD update, LED PWM dimming, and Modbus RTU over USART1. Use Value: Timer_B7's seven capture/compare registers enable concurrent PWM for 7 LEDs and precise timing for IR remote decoding. | Use Scenario: Battery-powered GPS asset trackers reporting location every 4 hours via cellular modem, with local LCD showing last known position and battery status. IC Role / Device Role / Timing Role: System manager coordinating GPS fix, modem handshake, LCD update, and deep-sleep scheduling using Basic Timer RTC. Use Value: 1.3 µA standby mode minimizes quiescent drain between transmissions; integrated LCD driver displays status without external controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F4616IPZR | Includes 12-bit ADC12 module (12 channels, internal reference, sample-and-hold); otherwise identical memory, peripherals, and package. | Required where analog sensor interfacing (e.g., thermistor, current sense) is needed on-device without external ADC. | Select MSP430F4616IPZR if ADC functionality is essential; MSP430F46161IPZR is preferred when ADC is unnecessary and lower cost or reduced qualification scope is prioritized. |
| MSP430F5438AIPZR | Higher-performance MSP430F5xx series: 256KB Flash, 16KB RAM, USB, enhanced USCI, but no integrated LCD driver and larger 100-pin QFP footprint. | Suitable for feature-rich HMIs with USB host/device, but requires external LCD bias and increases BOM complexity. | Choose MSP430F5438AIPZR only when USB connectivity or >4KB RAM is mandatory; MSP430F46161IPZR remains optimal for LCD-centric, ultra-low-power metering. |
Compared with MSP430F4616IPZR, the MSP430F46161IPZR removes ADC12 to reduce test cost and silicon area while retaining full LCD, timer, and communication capability - making it ideal for display-dominant, digitally interfaced applications. Against MSP430F5438AIPZR, it trades USB and memory for proven LCD integration and lower active/standby power.
Availability
MSP430F46161IPZR is available at Aetrix Electronics and suitable for portable medical devices, smart energy meters, and industrial control panels requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MSP430F46161IPZR 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 digital signal processing technologies with over 50 years of innovation in low-power design.
The MSP430F46161IPZR belongs to the MSP430x461x1 mixed-signal microcontroller product line, engineered specifically for ultralow-power, LCD-integrated applications in utility metering, portable instrumentation, and battery-operated human-interface systems.
FAQ
What is the key functional difference between MSP430F46161IPZR and MSP430F4616IPZR?
The MSP430F46161IPZR omits the 12-bit ADC12 module present in the MSP430F4616IPZR. All other peripherals - including LCD_A, USCI_A0, USCI_B0, USART1, Timer_A3, Timer_B7, comparator, and SVS - are functionally identical. This makes MSP430F46161IPZR optimal for applications relying solely on digital sensors or external ADCs.
Does MSP430F46161IPZR support JTAG debugging and in-system programming?
Yes, MSP430F46161IPZR supports full IEEE 1149.1 JTAG debugging and programming via pins TCK, TMS, TDO/TDI, and TDI/TCLK. It is compatible with TI's MSP-FET430UIF debugger and allows flash programming, real-time breakpoints, and memory inspection without removing the device from the PCB.
What LCD configuration options does MSP430F46161IPZR support?
MSP430F46161IPZR's LCD_A module supports static, 2-mux, 3-mux, and 4-mux LCDs with up to 160 segments. It includes integrated charge pump regulation, COM0–COM3 backplane outputs, and segment pins S0–S39. Segments S0–S3 are disabled when the charge pump is enabled, per TI specification SLAS675.
Can MSP430F46161IPZR operate from a single 3.0 V coin cell battery?
Yes, MSP430F46161IPZR operates across 1.8 V to 3.6 V, making it fully compatible with standard CR2032 (3.0 V nominal) and BR2032 (2.8 V) coin cells. Its 0.22 µA off-mode current ensures multi-year operation - verified in TI's e-meter reference designs using CR2032 with load switch control.
Which development tools are recommended for MSP430F46161IPZR firmware development?
Texas Instruments recommends the MSP-FET430UIF USB debugger, MSP-TS430PZ100 target socket board, and Code Composer Studio IDE. The MSP430F46161IPZR is also supported by Energia and naken_asm toolchains. TI's MSP430Ware peripheral driver library provides tested initialization code for all on-chip modules.
MSP430F46161IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUX
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 92KB (92K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F46161IPZR FAQ
1.How can I place an order for MSP430F46161IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F46161IPZR 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 MSP430F46161IPZR reliable?
The price and inventory of MSP430F46161IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F46161IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F46161IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F46161IPZR transactions.
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4.How is shipping managed for MSP430F46161IPZR?
MSP430F46161IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F46161IPZR 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 MSP430F46161IPZR?
For technical support, including MSP430F46161IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F46161IPZR requirements.
6.How does Aetrix verify that MSP430F46161IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F46161IPZR 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 MSP430F46161IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F46161IPZR?
All MSP430F46161IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F46161IPZR, 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 MSP430F46161IPZR part is unused and in its original packaging.
Return procedure for MSP430F46161IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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