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Texas Instruments MSP430A079IPN
- Part No.:
- MSP430A079IPN
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430A079IPN.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,545
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Product details
Overview
MSP430A079IPN from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 60 KB Flash, 2 KB RAM, a 12-bit ADC with 12 channels, dual 12-bit DACs, three configurable op-amps, integrated LCD driver for up to 128 segments, and two 16-bit timers - designed for battery-powered analog sensor systems and digital metering applications.
For engineers reviewing the MSP430A079IPN datasheet, MSP430A079IPN pinout, MSP430A079IPN application, or MSP430A079IPN equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-1 µA LPM4 current, 48 I/O pins, QFP-80 package, and on-chip LCD/ADC/DAC integration for compact portable instrumentation.
Technical Context
The MSP430A079IPN implements a digitally controlled oscillator (DCO) enabling wake-up from LPM3 in under 6 µs, and supports five low-power modes optimized for extended battery life in portable measurement systems. Its architecture includes constant generators and 16-bit registers for high code efficiency.
It integrates a single-channel internal DMA controller, USART configurable as UART or SPI, brownout detector, supply-voltage supervisor with programmable level detection, and bootloader (BSL) supporting serial onboard programming without external voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and constant generators for optimized code density |
| Memory | 60 KB Flash (programmable code protection via security fuse) and 2 KB RAM |
| ADC | 12-bit SAR ADC with 12 input channels, internal reference, sample-and-hold, autoscan, and <10 µs conversion time |
| DAC | Dual 12-bit voltage-output DACs with synchronization capability and built-in reference support |
| Power Consumption | Active mode: 300 µA @ 1 MHz / 2.2 V; LPM4 (RAM retention): 0.1 µA @ 25°C |
| Timers | Timer_A3 (3 capture/compare registers) and Timer_B3 (3 shadow-capable registers) for PWM, capture, and timing control |
| LCD Driver | Integrated segment driver supporting up to 128 segments with 1/2–1/4 bias and 4-mux capability |
Pinout & Package
Package: 80-pin LQFP (PN), 12 mm × 12 mm body size, with exposed thermal pad (per TI SLAS380F).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O / Timer_A inputs / Comparator_A inputs | 8-bit port with interrupt capability; supports TA0–TA2 capture/compare and CA0/CA1 analog inputs |
| P2.0–P2.7 | General-purpose I/O / Timer_B / USART / ADC12CLK | 8-bit port with TB0–TB2, UTXD0/URXD0, and ADC conversion clock input for precise sampling control |
| P3.0–P3.7 | General-purpose I/O / SPI signals / DMA trigger / LCD segments | 8-bit port supporting STE0/SIMO0/SOMI0, DMAE0, and LCD segment outputs S24–S31 |
| P4.0–P4.7 | General-purpose I/O / LCD segments / ADC inputs A14–A15 | 8-bit port driving LCD segments S9–S16 and providing analog inputs for extended ADC channel count |
| P5.0–P5.7 | General-purpose I/O / LCD COM/segment / LCD voltage levels | 8-bit port supporting COM0–COM3 backplanes, R03–R33 LCD bias inputs, and segment outputs S0–S3 |
| P6.0–P6.7 | Analog I/O / ADC inputs A0–A7 / Op-amp I/O / DAC outputs | 8-bit port with dedicated OA0–OA2 multiplexed inputs/outputs and DAC0/DAC1 voltage outputs |
| RST/NMI | Reset / Non-maskable interrupt input | Asynchronous reset pin with Schmitt-trigger input; also serves as NMI source for critical event handling |
| XIN/XOUT | LFXT1 crystal oscillator terminals | Supports 32.768 kHz watch crystal or 1–8 MHz crystals/resonators for precise low-frequency timing |
| XT2IN/XT2OUT | XT2 crystal oscillator terminals | Supports high-frequency system clock generation up to 8 MHz using external crystal or resonator |
| VREF+/VREF− | ADC reference voltage terminals | Provide external reference path; compatible with internal 2.5 V reference or user-supplied precision source |
| AVCC/AVSS | Analog power supply rails | Separate analog domain supply (1.8–3.6 V) for ADC, DAC, op-amps, comparator, and LCD circuitry |
| DVCC1/DVCC2/DVSS1/DVSS2 | Digital power supply rails | Dual digital supply domains enable noise isolation between core logic and peripheral I/O sections |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 (RAM retention) enables multi-year battery life in portable meters and sensors |
| Integrated analog front-end | 12-bit ADC + dual 12-bit DACs + three configurable op-amps eliminate need for external signal conditioning ICs |
| On-chip LCD driver | Drives up to 128 segments with 4-mux and programmable bias, reducing BOM and PCB area in display-based instruments |
| Flexible communication interface | USART0 software-selectable as UART or SPI supports both host connectivity and peripheral daisy-chaining |
| Robust system supervision | Brownout detector, supply-voltage supervisor (SVS), and programmable POR ensure reliable startup and operation across voltage transients |
Applications
| Hand-Held Meters | Digital Timers |
|---|---|
Use Scenario: Portable multimeters and clamp meters requiring long battery life, analog signal acquisition, and LCD display. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, DAC-based calibration references, op-amp signal conditioning, and LCD refresh timing. Use Value: Integrated 12-bit ADC, dual DACs, and LCD driver reduce component count by ≥4 discrete ICs while maintaining ±0.1% measurement accuracy. | Use Scenario: Programmable kitchen timers and industrial process timers needing accurate timekeeping and user interface. IC Role / Device Role / Timing Role: Real-time controller using LFXT1 (32.768 kHz) for calendar/timekeeping, Timer_A/B for interval generation, and LCD for display. Use Value: Sub-µA LPM3 current with active Basic Timer1 and LCD enables >5-year coin-cell operation without recharge or replacement. |
| Analog Sensor Systems | Thermostats |
Use Scenario: Wireless temperature/humidity sensors in HVAC or environmental monitoring with battery constraints. IC Role / Device Role / Timing Role: Signal acquisition node performing analog sensor excitation (via DAC), amplification (op-amps), digitization (ADC), and low-power wireless data transmission prep. Use Value: Three configurable op-amps support transimpedance, instrumentation, and filtering topologies - eliminating external amplifier stages. | Use Scenario: Residential and commercial thermostats requiring precise temperature sensing, user interface, and relay control. IC Role / Device Role / Timing Role: System-on-chip managing thermistor/RTD reading (ADC), display (LCD), keypad scan (GPIO), and HVAC actuator timing (Timer_B PWM). Use Value: 48 GPIO pins support direct keypad matrix scanning and multiple relay/valve drivers, avoiding external I/O expanders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FG438IPN | 48 KB Flash, 2 KB RAM; identical peripherals, package, and pinout | Suitable where firmware size ≤48 KB suffices; same power/performance profile | Select when code footprint allows reduction from 60 KB to 48 KB Flash without feature loss |
| MSP430FG437IPN | 32 KB Flash, 1 KB RAM; same peripheral set and QFP-80 package | Targeted at cost-sensitive, lower-complexity metering designs with reduced memory needs | Choose for simpler applications where 32 KB Flash and 1 KB RAM meet firmware and buffer requirements |
Compared with MSP430FG438IPN and MSP430FG437IPN, the MSP430A079IPN provides maximum on-chip memory headroom (60 KB Flash/2 KB RAM) while retaining identical analog integration, LCD capability, and ultra-low-power behavior - making it optimal for feature-rich portable instrumentation requiring future firmware expansion.
Availability
MSP430A079IPN is available at Aetrix Electronics and suitable for hand-held meters, digital timers, analog sensor systems, and thermostats requiring stable component supply and long-term industrial availability.
Supply support for MSP430A079IPN 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 over 50 years of innovation in low-power design.
The MSP430FG43x product line delivers ultra-low-power mixed-signal MCUs targeting portable instrumentation, sensor nodes, and display-based industrial controls where battery life and analog integration are critical.
FAQ
What is the maximum system clock frequency supported by the MSP430A079IPN?
The MSP430A079IPN supports a maximum system clock (MCLK) frequency of 8 MHz at VCC = 3.6 V, and 4.15 MHz at VCC = 1.8 V, as specified in the recommended operating conditions. This frequency is generated by the digitally controlled oscillator (DCO) and is scalable across the 1.8–3.6 V supply range without external crystal dependency for core operation.
Does the MSP430A079IPN support hardware UART and SPI simultaneously?
No - the MSP430A079IPN features a single USART0 module that can be configured in software as either asynchronous UART or synchronous SPI, but not both concurrently. It does not include separate dedicated UART and SPI peripherals; simultaneous serial protocols require external bridging or time-multiplexed use of USART0.
What LCD configuration options does the MSP430A079IPN support?
The MSP430A079IPN supports LCD operation with 1/2 or 1/4 bias, up to 4-mux segmentation, and drives up to 128 segments using dedicated COM0–COM3 backplane outputs and segment pins S0–S31 plus auxiliary outputs. It includes internal resistive divider circuitry and supports external voltage sources for V1–V5 LCD bias levels.
Can the op-amps in the MSP430A079IPN be used in rail-to-rail input/output configurations?
Yes - the three configurable operational amplifiers (OA0–OA2) in the MSP430A079IPN support rail-to-rail input and output operation when powered from AVCC/AVSS. Each op-amp includes selectable gain and feedback paths via internal multiplexers, enabling transimpedance, difference, and programmable-gain amplifier configurations directly on-chip.
Is the MSP430A079IPN pin-compatible with other devices in the MSP430FG43x family?
Yes - the MSP430A079IPN shares identical pinout, package (80-pin QFP), and peripheral mapping with MSP430FG439IPN, MSP430FG438IPN, and MSP430FG437IPN. All devices in this family use the same PN package variant and maintain full signal-level compatibility across Flash/RAM variants.
MSP430A079IPN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 48KB (48K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430A079IPN FAQ
1.How can I place an order for MSP430A079IPN through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430A079IPN 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 MSP430A079IPN reliable?
The price and inventory of MSP430A079IPN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430A079IPN is usually 5 days.
3.What payment methods are accepted for MSP430A079IPN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430A079IPN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430A079IPN?
MSP430A079IPN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430A079IPN 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 MSP430A079IPN?
For technical support, including MSP430A079IPN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430A079IPN requirements.
6.How does Aetrix verify that MSP430A079IPN is sourced from the original manufacturer or authorized distributors?
All MSP430A079IPN 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 MSP430A079IPN meets industry standards.
7.What is the process for return or replacement of MSP430A079IPN?
All MSP430A079IPN units undergo pre-shipment inspection (PSI). If there is an issue with MSP430A079IPN, 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 MSP430A079IPN part is unused and in its original packaging.
Return procedure for MSP430A079IPN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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