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Texas Instruments MSP430F4783IPZR
- Part No.:
- MSP430F4783IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F4783IPZR.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,783
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Product details
Overview
MSP430F4783IPZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller designed for single-phase electricity metering. It integrates three 16-bit sigma-delta ADCs with differential PGA inputs, 48KB Flash + 256B information memory, 2KB RAM, and an on-chip LCD driver supporting up to 160 segments - enabling direct interface to meter display panels.
For engineers reviewing the MSP430F4783IPZR datasheet, MSP430F4783IPZR pinout, MSP430F4783IPZR application, or MSP430F4783IPZR equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-μA standby current (1.1 μA), <6 μs wake-up time, integrated USCI_A/B modules for UART/I²C/SPI communication, and dedicated metering peripherals including SVS, comparator, and hardware multiplier.
Technical Context
The MSP430F4783IPZR implements a 16-bit RISC CPU with constant generators and 62.5-ns instruction cycle time, paired with FLL+ clock system supporting XT1 (32.768 kHz), XT2 (up to 16 MHz), and DCO-based MCLK/SMCLK/ACLK generation. Its power architecture supports five software-selectable low-power modes, including LPM4 with full RAM retention at 0.2 μA.
Peripherals are tightly coupled to metering use cases: three SD16_A sigma-delta ADCs each support programmable gain and differential input pairs (A0–A2), Timer_B3 provides three capture/compare registers with shadow registers for precise timing control, and dual USCI_A0/A1 + USCI_B0/B1 enable concurrent UART (with auto-baud), IrDA, SPI, and I²C interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle - enables deterministic real-time metering firmware execution. |
| Flash / RAM | 48KB + 256B Flash, 2KB RAM - sufficient for certified metrology algorithms, LCD UI, and communication stacks in Class 0.5/1.0 meters. |
| ADC System | Three independent 16-bit sigma-delta ADCs (SD16_A) with differential PGA inputs - supports simultaneous voltage/current/neutral channel sampling with >90 dB SNR. |
| Power Consumption | Active mode: 280 μA @ 1 MHz / 2.2 V; Standby: 1.1 μA; Off mode (RAM retention): 0.2 μA - extends battery life in backup-powered meters. |
| LCD Driver | Integrated LCD_A controller driving up to 160 segments with programmable contrast and 4-mux capability - eliminates external display drivers in compact meter designs. |
| Communication Interfaces | Four USCI modules: USCI_A0/A1 (UART/IrDA/SPI), USCI_B0/B1 (I²C/SPI) - enables dual-protocol data logging (e.g., optical port + RS-485) without external transceivers. |
| Clock System | FLL+ with XT1 (32.768 kHz), XT2 (up to 16 MHz), and DCO - delivers stable timing for metrology sampling and real-time clock with <6 μs wake-up from LPM4. |
Pinout & Package
Package: 100-pin plastic QFP (PZ), RoHS-compliant, rated for −40°C to +85°C operation. Pinout validated per SLAS545C Rev. March 2011, Table "Terminal Functions".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0 | Timer_A CCR0 input/output + BSL TX | Primary BSL serial transmit pin; also used for timer capture/compare in metrology timing functions. |
| P1.1/TA0/MCLK | Timer_A CCR0 input + MCLK output + BSL RX | BSL receive pin; MCLK output enables external clock monitoring; TA0 input supports zero-crossing detection. |
| A0.0+/A0.0− | SD16_A Channel 0 differential analog input | Dedicated high-impedance input pair for voltage sensing channel with programmable PGA gain (1–16×). |
| A1.0+/A1.0− | SD16_A Channel 1 differential analog input | Isolated current sensing input with independent offset calibration register for shunt-based measurement. |
| A2.0+/A2.0− | SD16_A Channel 2 differential analog input | Neutral or auxiliary channel input; supports differential measurement to reject common-mode noise in EMI-prone meter environments. |
| COM0–COM3 | LCD backplane outputs | Four common outputs drive multiplexed LCD segments; enable 4-mux configuration for 160-segment displays with minimal external components. |
| RST/NMI | Reset / non-maskable interrupt input | Hardware reset pin with Schmitt-trigger input; doubles as NMI source for critical fault handling (e.g., tamper detection). |
| TCK/TMS/TDI/TDO | JTAG debug interface | Full 4-wire JTAG support enables in-circuit debugging and flash programming without BSL dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.2 μA off-mode current with RAM retention enables >10-year battery life in backup-powered smart meters. |
| Integrated metrology ADCs | Three independent 16-bit sigma-delta converters with built-in PGA, reference buffers, and offset/gain calibration registers reduce external signal conditioning. |
| On-chip LCD controller | Drives 160 segments with contrast control and 4-mux support - eliminates external LCD driver IC and reduces BOM cost by $0.35–$0.60. |
| Dual USCI_A/B modules | Enables concurrent UART (optical port) and I²C (EEPROM/data logger) communication without resource contention or software arbitration. |
| Hardware multiplier | 32×32-bit MAC unit accelerates RMS, harmonic, and tariff calculation - cuts firmware execution time for Class 1.0 metrology by 40% vs. software-only math. |
| Supply voltage supervisor | Programmable SVS level detection (1.7–2.7 V) with interrupt or reset output ensures reliable operation during brownout events in unstable grid conditions. |
Applications
| Smart Electricity Meter | Energy Monitoring Gateway |
|---|---|
Use Scenario: Residential or commercial single-phase meter with tariff switching, load profiling, and optical/RS-485 communication. IC Role / Device Role / Timing Role: Primary metrology MCU performing real-time voltage/current sampling, RMS/harmonic computation, LCD display control, and secure data logging. Use Value: Integrated SD16_A ADCs eliminate external precision op-amps and reference ICs; 48KB Flash accommodates DLMS/COSEM stack and firmware updates. |
Use Scenario: DIN-rail mounted gateway aggregating data from multiple submeters and transmitting via cellular or Ethernet. IC Role / Device Role / Timing Role: Secondary processing node managing local time synchronization, data buffering, and protocol translation between Modbus and MQTT. Use Value: Dual USCI_B modules support simultaneous I²C (to sensor hubs) and SPI (to secure element); 2KB RAM enables 72-hour local history buffer. |
| Portable Power Analyzer | Grid Edge Sensor Node |
Use Scenario: Handheld device for field technicians measuring THD, power factor, and transient events in distribution panels. IC Role / Device Role / Timing Role: Real-time acquisition engine with synchronized 3-channel sampling at 8 kSPS and on-device FFT analysis. Use Value: Three independent sigma-delta ADCs allow true simultaneous sampling; hardware multiplier enables 1024-point FFT in <12 ms. |
Use Scenario: Solar PV or EVSE-integrated sensor node reporting voltage sag/swell, frequency deviation, and temperature to cloud platform. IC Role / Device Role / Timing Role: Low-power edge processor acquiring 1-second RMS values, applying tamper detection logic, and waking radio only on event. Use Value: 0.2 μA off-mode current extends 2xAA battery life to >5 years; integrated comparator detects neutral disconnect or ground faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar metering microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F4793IPZR | 60KB Flash + 2.5KB RAM, identical peripherals except adds fourth sigma-delta ADC channel | Required for three-phase meters or designs needing redundant ADC channel for diagnostics | Select when additional Flash/RAM or fourth ADC channel is needed; pin-compatible and drop-in replacement for MSP430F4783IPZR. |
| MSP430F6736IPZR | Enhanced 25-MHz CPU, 128KB Flash, integrated RTC, enhanced LCD driver (240 seg), no SD16_A but new 24-bit ΣΔ ADC (SD24) | Targeted at next-gen Class 0.2 meters requiring higher resolution, faster computation, and extended feature set | Choose for future-proof designs needing >100 dB SNR or integrated RTC; requires PCB layout change due to 128-pin LQFP package. |
Compared with MSP430F4793IPZR, the MSP430F4783IPZR offers optimal cost/performance balance for Class 0.5/1.0 single-phase meters; versus MSP430F6736IPZR, it provides proven metrology qualification with lower BOM cost and simpler layout, though lacks 24-bit resolution and RTC.
Availability
MSP430F4783IPZR is available at Aetrix Electronics and suitable for smart electricity metering, portable power analyzers, and grid-edge sensor nodes requiring stable component supply, long-term lifecycle support, and TI-qualified metrology performance.
Supply support for MSP430F4783IPZR 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 40 years of microcontroller innovation.
The MSP430F47xx product line was engineered specifically for utility-grade single-phase electricity metering, integrating metrology-optimized ADCs, LCD drivers, and ultra-low-power operation to meet IEC 62053 certification requirements.
FAQ
What is the maximum sampling rate supported by the MSP430F4783IPZR's sigma-delta ADCs?
The MSP430F4783IPZR's three SD16_A sigma-delta ADCs support up to 8 kSPS per channel in continuous conversion mode with 16-bit resolution and >90 dB SNR. Each ADC operates independently with configurable oversampling ratio and conversion timing, enabling synchronized 3-channel acquisition for voltage, current, and neutral measurements in single-phase metering applications. The MSP430F4783IPZR's internal reference and PGA ensure stable performance across temperature and supply variations.
Does the MSP430F4783IPZR support JTAG debugging and in-system programming?
Yes, the MSP430F4783IPZR supports full 4-wire JTAG debugging and programming via TCK, TMS, TDI, and TDO pins (pins 93, 92, 91, and 90). It is compatible with standard TI tools including MSP-FET430UIF and MSP-GANG430. In addition, the MSP430F4783IPZR includes a UART-based bootstrap loader (BSL) accessible through P1.0 (TX) and P1.1 (RX), allowing field firmware updates without JTAG hardware.
How many LCD segments can the MSP430F4783IPZR drive, and what mux configurations are supported?
The MSP430F4783IPZR integrates the LCD_A peripheral capable of driving up to 160 segments using 1-, 2-, 3-, or 4-mux configurations. It provides four COM outputs (COM0–COM3) and 40 segment outputs (S0–S39), with additional segment-capable GPIO pins extending flexibility. Contrast is digitally controlled via internal resistor ladder or external capacitor (LCDCAP pin), eliminating need for external bias circuitry in most meter display designs.
What are the power supply requirements for the MSP430F4783IPZR's analog and digital domains?
The MSP430F4783IPZR requires separate analog (AVCC/AVSS) and digital (DVCC1/DVCC2/DVSS1/DVSS2) supply rails. AVCC must be powered after DVCC1/DVCC2 and must not exceed DVCC by more than 0.3 V. All supplies operate within 1.8 V to 3.6 V. Dedicated AVSS and DVSS pins ensure noise isolation between metrology ADCs and digital logic, critical for achieving >90 dB SNR in revenue-grade metering applications using the MSP430F4783IPZR.
Is the MSP430F4783IPZR qualified for IEC 62053-compliant electricity meters?
Yes, the MSP430F4783IPZR is widely deployed in IEC 62053-21 (Class 1.0) and IEC 62053-22 (Class 0.5S) certified single-phase meters. Its integrated three-channel 16-bit sigma-delta ADCs, calibrated reference, and low-noise analog design meet the accuracy, linearity, and temperature stability requirements specified in these standards. TI provides metrology software libraries and application notes (e.g., SLAA335) to accelerate IEC compliance testing for designs based on the MSP430F4783IPZR.
MSP430F4783IPZR 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 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LCD, POR, PWM, WDT
- Number of I/O:
- 72
- 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 3x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F4783IPZR FAQ
1.How can I place an order for MSP430F4783IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4783IPZR 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 MSP430F4783IPZR reliable?
The price and inventory of MSP430F4783IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4783IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F4783IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4783IPZR transactions.
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4.How is shipping managed for MSP430F4783IPZR?
MSP430F4783IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4783IPZR 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 MSP430F4783IPZR?
For technical support, including MSP430F4783IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4783IPZR requirements.
6.How does Aetrix verify that MSP430F4783IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F4783IPZR 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 MSP430F4783IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F4783IPZR?
All MSP430F4783IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4783IPZR, 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 MSP430F4783IPZR part is unused and in its original packaging.
Return procedure for MSP430F4783IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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