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Texas Instruments MSP430F6435IPZR
- Part No.:
- MSP430F6435IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6435IPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:392
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Product details
Overview
MSP430F6435IPZR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 256 KB flash, 18 KB RAM, integrated 3.3-V LDO, 12-bit ADC (200 ksps, 16 channels), LCD driver (160 segments), RTC, four 16-bit timers, two USCIs (UART/IrDA/SPI/I²C), and hardware multiplier - deployed in battery-powered sensor systems and handheld meters requiring sub-2-µA standby current.
For engineers reviewing the MSP430F6435IPZR datasheet, MSP430F6435IPZR pinout, MSP430F6435IPZR application, or MSP430F6435IPZR equivalent, key selection criteria include LPM3 standby current (1.8 µA at 2.2 V), 100-pin LQFP package compatibility, absence of DAC channels (vs. F6438/F6436), and full peripheral feature parity except DAC12_A.
Technical Context
The MSP430F6435IPZR implements a unified clock system with FLL stabilization, VLO/REFO internal sources, and support for 32-kHz XT1 and up to 32-MHz XT2 crystals. Its power management includes programmable LDO core regulation, supply supervision, and brownout detection.
It executes from flash with EEM (Enhanced Emulation Module), supports 6-channel DMA, and integrates peripherals including ADC12_A with autoscan, comparator_B, and LCD_B with contrast control - all optimized for deterministic wake-up from LPM3 in 3 µs (typical) and operation across 1.8–3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators for high code efficiency |
| Flash / RAM | 256 KB flash + 18 KB RAM + 8 B backup RAM - sufficient for complex sensor firmware with RTC data retention |
| LPM3 Current | 1.8 µA at 2.2 V - enables multi-year battery life in always-on monitoring applications |
| ADC Resolution | 12-bit ADC12_A with 16 input channels (12 external, 4 internal), 200 ksps sampling - suitable for precision analog sensor interfacing |
| Timer Resources | Four 16-bit timers: TA0 (5 CC), TA1/TA2 (3 CC each), TB0 (7 CC) - supports motor control PWM, capture, and real-time scheduling |
| USCI Interfaces | Two USCIs: USCI_A (UART/IrDA/SPI), USCI_B (I²C/SPI) - enables dual-protocol wired communication without external transceivers |
| LCD Driver | LCD_B module driving up to 160 segments with programmable contrast - eliminates need for external display controllers in metering designs |
Pinout & Package
LQFP-100 (14 mm × 14 mm) package with exposed thermal pad; 74 GPIO pins, including dedicated LCD segment/common drivers, analog inputs, and crystal oscillator connections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / JTAG debug I/O | Single-pin multifunction interface for reset assertion, non-maskable interrupt, and Spy-Bi-Wire programming |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC accuracy and low-power timekeeping |
| XT2IN / XT2OUT | High-frequency crystal oscillator terminals | Enables up to 32-MHz system clock for high-speed processing or USB-synchronized timing |
| P1.0–P1.7, P2.0–P2.7, etc. | General-purpose I/O with peripheral mapping | 74 total GPIOs with configurable pullup/down, interrupt capability, and peripheral function overlay (e.g., TA0CLK, ADC12CLK) |
| P5.0 / P5.1 | Reference voltage inputs (VREF+/VREF−) | Accept external reference for ADC12_A to achieve ±0.2% INL over temperature |
| P5.2–P5.5, P9.0–P9.7, etc. | LCD segment/common outputs | Direct drive of up to 160-segment LCD without external bias or driver IC |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LPM3 mode | 1.8 µA at 2.2 V with full RAM retention and RTC active - extends coin-cell battery life beyond 5 years |
| FLL-based clock system | Stabilizes DCO to target frequency using reference crystal or internal REFO/VLO - eliminates need for external PLL components |
| Integrated 3.3-V LDO | Regulates core voltage from 1.8–3.6 V supply - simplifies power design and improves noise immunity for analog peripherals |
| Hardware multiplier (MPY32) | Executes 32-bit multiply in single cycle - accelerates FFT, filtering, and sensor fusion algorithms in firmware |
| 6-channel DMA controller | Offloads CPU during ADC conversions, UART transfers, and timer captures - reduces active-mode duty cycle |
Applications
| Analog Sensor Systems | Digital Motor Control |
|---|---|
Use Scenario: Portable environmental monitor measuring temperature, humidity, and CO₂ via analog sensors. IC Role / Device Role / Timing Role: Main MCU executing sensor calibration, ADC acquisition, LCD display update, and RTC timestamping. Use Value: Sub-2-µA LPM3 current enables >3-year operation on CR2032; integrated ADC and LCD driver reduce BOM count by 3 components. | Use Scenario: Closed-loop BLDC motor controller in cordless power tools with hall-effect feedback. IC Role / Device Role / Timing Role: Real-time PWM generation (via TA0/TB0), current sensing (ADC12_A), and commutation logic. Use Value: 3-µs wake-up from LPM3 allows rapid response to fault conditions; hardware multiplier accelerates PID computation. |
| Thermostats | Hand-held Meters |
Use Scenario: Battery-powered HVAC thermostat with ambient temperature, occupancy, and setpoint UI. IC Role / Device Role / Timing Role: System controller managing touch/keypad input, LCD display, relay actuation, and wireless comms (via USCI_A). Use Value: Integrated LDO ensures stable 3.3-V rail for precision ADC and LCD contrast control; RTC maintains accurate scheduling across power cycles. | Use Scenario: Multifunction digital multimeter with auto-ranging, data logging, and backlit LCD. IC Role / Device Role / Timing Role: Signal acquisition engine performing 12-bit ADC sampling, math operations, and segment-driven LCD rendering. Use Value: 160-segment LCD_B driver eliminates external display controller; 256 KB flash stores calibration tables and firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6438IPZR | Includes dual 12-bit DAC channels; identical flash/RAM/peripherals otherwise | Required where analog output (e.g., sensor bias, calibration voltage) is needed alongside ADC | Select when DAC functionality is mandatory; same pinout and software compatibility |
| MSP430F6436IPZR | 128 KB flash (vs. 256 KB); otherwise identical peripheral set and power specs | Suitable for cost-sensitive designs with smaller firmware footprint and no need for large lookup tables | Choose for reduced memory requirement and lower unit cost; drop-in replacement if code fits |
Compared with MSP430F6438IPZR, the MSP430F6435IPZR saves board space and cost by omitting DACs while retaining full ADC, LCD, and timer capability; versus MSP430F6436IPZR, it doubles flash for complex firmware or data logging - making it optimal for feature-rich portable instrumentation.
Availability
MSP430F6435IPZR is available at Aetrix Electronics and suitable for analog sensor systems, thermostats, and hand-held meters requiring stable component supply, long-term lifecycle assurance, and TI-qualified industrial-grade reliability.
Supply support for MSP430F6435IPZR 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 for industrial, automotive, and consumer applications.
The MSP430F6435IPZR belongs to TI's ultra-low-power mixed-signal MCU product line, designed specifically for battery-operated measurement and display applications demanding extended runtime and integrated analog front-end capability.
FAQ
What is the maximum operating frequency of the MSP430F6435IPZR?
The MSP430F6435IPZR supports a maximum system clock frequency of 20 MHz under recommended operating conditions. Its FLL-based clock system can lock to external crystals up to 32 MHz (XT2), but the CPU and most peripherals are rated for 20 MHz operation per the datasheet's recommended conditions and timing specifications.
Does the MSP430F6435IPZR include a DAC?
No, the MSP430F6435IPZR does not include DAC channels. Per the device comparison table in the SLAS720F datasheet, DAC12_A is marked "–" for MSP430F6435IPZR, distinguishing it from MSP430F6438IPZR and MSP430F6436IPZR which feature two 12-bit DACs. All other analog peripherals - including ADC12_A, comparator_B, and reference modules - remain fully implemented.
What package type is used for the MSP430F6435IPZR?
The MSP430F6435IPZR uses a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm. This package is explicitly listed in the Device Information table of the SLAS720F datasheet and features an exposed thermal pad for enhanced heat dissipation in continuous operation.
How many I/O pins does the MSP430F6435IPZR provide?
The MSP430F6435IPZR provides 74 general-purpose I/O pins, as confirmed in the Device Comparison table (Table 6-1) of the SLAS720F datasheet. These include multiplexed functions for timers, ADC, USCI, LCD, and crystal interfaces - with full port mapping detailed in Section 7.2 (Signal Descriptions).
What is the standby current consumption of the MSP430F6435IPZR in LPM3 mode?
The MSP430F6435IPZR consumes 1.8 µA at 2.2 V in LPM3 mode (watchdog + crystal + supply supervisor active, full RAM retention), as specified in the "Ultra-low power consumption" section of the SLAS720F datasheet. At 3.0 V, LPM3 current rises to 2.1 µA (typical), confirming its suitability for multi-year battery operation.
MSP430F6435IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 74
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 18K 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:
MSP430F6435IPZR FAQ
1.How can I place an order for MSP430F6435IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6435IPZR 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 MSP430F6435IPZR reliable?
The price and inventory of MSP430F6435IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6435IPZR is usually 5 days.
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MSP430F6435IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6435IPZR 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 MSP430F6435IPZR?
For technical support, including MSP430F6435IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6435IPZR requirements.
6.How does Aetrix verify that MSP430F6435IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F6435IPZR 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 MSP430F6435IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F6435IPZR?
All MSP430F6435IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6435IPZR, 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 MSP430F6435IPZR part is unused and in its original packaging.
Return procedure for MSP430F6435IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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