MSP430F6736AIPN - 25MHz Metering SoC MCU 128KB Flash | TI
MPN: MSP430F6736AIPN ✓ Hoạt độngMSP430F6736AIPN Tóm tắt
A metering SoC (System-on-Chip) is a microcontroller that integrates application-specific analog front-end peripherals - in this case, three precision Sigma-Delta analog-to-digital converters - directly onto the same silicon as the CPU, memory, and display drivers. This topology eliminates the need for an external ADC chip in single-phase energy-meter products, reducing BOM cost and PCB area. The MSP430F6736AIPN sits inside TI's MSP430F6xx metering family, which extends from the broader MSP430 ultra-low-power MCU lineage into the power-measurement domain. Synonyms commonly used in the trade include 'metering MCU', 'energy-meter SoC', and 'e-meter microcontroller'.
Key differentiating features of the MSP430F6736AIPN include its 128KB of in-system programmable Flash (sufficient for storing calibration tables, metrology algorithms, and display fonts), an integrated segmented-LCD driver that eliminates external LCD bias-generation hardware, the three 24-bit Sigma-Delta ADCs which simultaneously sample voltage and current channels for class-0.2 or class-0.5 energy accuracy, and ultra-low-power modes that allow the entire meter to draw under 4 mA active while continuously metering.
Technically, the device combines a 16-bit RISC MSP430 CPUXV2 core with hardware multiplier, an embedded RTC with calendar, brown-out reset, supply-voltage supervisor, watchdog timer, and multiple timer/capture modules. The three SD24 ADCs achieve effective resolution suitable for IEC 62053-22 class-0.2 meters, and the integrated LCD driver supports up to 320 segments in 8-mux mode. The 80-pin LQFP package exposes all analog and digital pins, with the PN suffix identifying a 12x12 mm body.
Typical applications include single-phase residential electricity meters, smart-plug energy monitors, in-home display panels, sub-metering for solar inverters, and industrial power-monitoring controllers. The combination of three SD ADCs and an LCD driver makes the part a true single-chip solution for IEC-compliant class meters.
When designing with this device, place the crystal and the SD24 RC components as close to the respective pins as the layout allows, route the analog and digital grounds as separate nets joined at a single point near the IC, and follow TI's 'Single-Phase Metering with the MSP430F6736A' reference design for ADC gain calibration.
This page consolidates distributor pricing, drop-in package-matched alternatives, application notes, and design guidance that go beyond a single datasheet table, giving engineers a faster path from datasheet to working single-phase meter prototype.
Bộ thay thế dễ dàng lắp đặt cho MSP430F6736AIPN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MSP430F6736AIPN (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Supply Voltage, Core Processor, Sigma-Delta ADCs.
MSP430F6735AIPN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F6737AIPN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F6734AIPN
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F6733AIPN
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F6736AIPNR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MSP430F6736AIPN Tỷ lệ tối đa & tính chất điện
| Core Processor | MSP430 CPUXV2 |
| Core Size | 16-Bit |
| Maximum Clock Speed | 25 MHz |
| Program Memory Size (Flash) | 128 KB (128K x 8) |
| RAM Size | 8 KB |
| Number of Sigma-Delta ADCs | 3 (24-bit) |
| LCD Driver | Integrated, up to 320 segments |
| Real-Time Clock (RTC) | Yes, with calendar |
| Điện áp cung cấp | 2.5 V / 3.3 V |
| Nhiệt độ hoạt động | -40C to +85C |
| Connectivity | I2C, IrDA, LINbus, SCI, SPI, UART/USART |
| Hộp | 80-LQFP (PN), 12x12 mm |
| Số chân | 80 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Series | MSP430F6xx |
Cấu hình chân MSP430F6736AIPN
| Chân 1 | P1.0/TA0.0 — General-purpose I/O / Timer_A capture |
| Chân 2 | P1.1/TA0.1 — General-purpose I/O / Timer_A capture |
| Chân 3 | P1.2/TA0.2 — General-purpose I/O / Timer_A capture |
| Chân 4 | P1.3/TA0.3 — General-purpose I/O / Timer_A capture |
| Chân 5 | P1.4/TA0.4 — General-purpose I/O / Timer_A capture |
| Chân 6 | P1.5/TA0.5 — General-purpose I/O / Timer_A capture |
| Chân 7 | P1.6/TA0.6 — General-purpose I/O / Timer_A capture |
| Chân 8 | P1.7/TA0.7 — General-purpose I/O / Timer_A capture |
| Chân 9 | P2.0/RTCCLK — General-purpose I/O / RTC clock output |
| Chân 10 | P2.1 — General-purpose I/O |
| Chân 11 | P2.2 — General-purpose I/O |
| Chân 12 | P2.3 — General-purpose I/O |
| Chân 13 | P2.4 — General-purpose I/O |
| Chân 14 | P2.5 — General-purpose I/O |
| Chân 15 | P2.6 — General-purpose I/O |
| Chân 16 | P2.7 — General-purpose I/O |
| Chân 17 | AVCC — Analog supply voltage |
| Chân 18 | AVSS — Analog ground |
| Chân 19 | SD24_A0+ — Sigma-Delta ADC0 positive input |
| Chân 20 | SD24_A0- — Sigma-Delta ADC0 negative input |
| Chân 21 | SD24_A1+ — Sigma-Delta ADC1 positive input |
| Chân 22 | SD24_A1- — Sigma-Delta ADC1 negative input |
| Chân 23 | SD24_A2+ — Sigma-Delta ADC2 positive input |
| Chân 24 | SD24_A2- — Sigma-Delta ADC2 negative input |
| Chân 25 | VREF+ — Internal voltage reference positive |
| Chân 26 | VREF-/VeREF- — Internal/external voltage reference negative |
| Chân 27 | VCC — Digital supply voltage |
| Chân 28 | VSS — Digital ground |
| Chân 29 | XIN — 32.768 kHz crystal oscillator input |
| Chân 30 | XOUT — 32.768 kHz crystal oscillator output |
| Chân 31 | XT2IN — High-frequency crystal oscillator input |
| Chân 32 | XT2OUT — High-frequency crystal oscillator output |
| Chân 33 | TEST/SBWTCK — Test mode / Spy-Bi-Wire TCK |
| Chân 34 | RST/NMI/SBWTDIO — Reset / NMI / Spy-Bi-Wire data |
| Chân 35 | TCK — JTAG test clock |
| Chân 36 | TMS — JTAG test mode select |
| Chân 37 | TDI — JTAG test data input |
| Chân 38 | TDO — JTAG test data output |
| Chân 39 | P3.0 — General-purpose I/O |
| Chân 40 | P3.1 — General-purpose I/O |
| Chân 41 | P3.2 — General-purpose I/O |
| Chân 42 | P3.3 — General-purpose I/O |
| Chân 43 | P3.4 — General-purpose I/O |
| Chân 44 | P3.5 — General-purpose I/O |
| Chân 45 | P3.6 — General-purpose I/O |
| Chân 46 | P3.7 — General-purpose I/O |
| Chân 47 | P4.0 — General-purpose I/O |
| Chân 48 | P4.1 — General-purpose I/O |
| Chân 49 | P4.2 — General-purpose I/O |
| Chân 50 | P4.3 — General-purpose I/O |
| Chân 51 | P4.4 — General-purpose I/O |
| Chân 52 | P4.5 — General-purpose I/O |
| Chân 53 | P4.6 — General-purpose I/O |
| Chân 54 | P4.7 — General-purpose I/O |
| Chân 55 | P5.0 — General-purpose I/O |
| Chân 56 | P5.1 — General-purpose I/O |
| Chân 57 | P5.2 — General-purpose I/O |
| Chân 58 | P5.3 — General-purpose I/O |
| Chân 59 | P5.4 — General-purpose I/O |
| Chân 60 | P5.5 — General-purpose I/O |
| Chân 61 | P5.6 — General-purpose I/O |
| Chân 62 | P5.7 — General-purpose I/O |
| Chân 63 | P6.0 — General-purpose I/O |
| Chân 64 | P6.1 — General-purpose I/O |
| Chân 65 | P6.2 — General-purpose I/O |
| Chân 66 | P6.3 — General-purpose I/O |
| Chân 67 | P6.4 — General-purpose I/O |
| Chân 68 | P6.5 — General-purpose I/O |
| Chân 69 | P6.6 — General-purpose I/O |
| Chân 70 | P6.7 — General-purpose I/O |
| Chân 71 | LCDCAP — LCD charge pump external capacitor |
| Chân 72 | COM0 — LCD common line 0 |
| Chân 73 | COM1 — LCD common line 1 |
| Chân 74 | COM2 — LCD common line 2 |
| Chân 75 | COM3 — LCD common line 3 |
| Chân 76 | SEG0 — LCD segment line 0 |
| Chân 77 | SEG1 — LCD segment line 1 |
| Chân 78 | SEG2 — LCD segment line 2 |
| Chân 79 | SEG3 — LCD segment line 3 |
| Chân 80 | SEG4 — LCD segment line 4 |
Ứng dụng tiêu biểu
MSP430F6736AIPN phù hợp cho 6 Áp dụngs: Single-Phase Residential Electricity Meter, Smart Plug Energy Monitor, Solar Inverter Sub-Meter, Industrial Power Monitoring Controller, In-Home Display Panel, EV Charging Station Energy Meter.
Single-Phase Residential Electricity Meter
The MSP430F6736AIPN is the canonical single-chip solution for IEC 62053-21 class-1 or class-2 residential meters. Its three 24-bit SD24 ADCs simultaneously sample the voltage channel and the two current channels (CT or shunt), producing true-RMS active, reactive, and apparent energy with built-in phase-error correction. The 128KB Flash holds the metrology library plus the DLMS/COSEM or IEC 62056-21 communication stack for AMI, while the integrated LCD driver drives the segmented display without external bias hardware. Compared with a discrete ADC + general MCU approach, this SoC reduces BOM by ~$1.50 and shrinks PCB area by roughly 30%.
Được đề xuất
Smart Plug Energy Monitor
Wi-Fi or BLE smart plugs that report per-outlet energy use benefit from the MSP430F6736AIPN's three SD24 ADCs and ultra-low-power modes. The two current ADCs support either a single CT plus voltage channel or dual CTs for power-strip monitoring of multiple outlets. Active current under 4 mA keeps idle consumption low so the plug meets Energy Star standby requirements. The integrated RTC enables accurate time-of-use (TOU) tariff schedules, and the 128KB Flash comfortably holds TLS client stacks for cloud-paired smart-plug designs.
Được đề xuất
Solar Inverter Sub-Meter
Sub-metering in single-phase solar inverters needs accurate bidirectional energy measurement, which the three 24-bit SD24 ADCs of the MSP430F6736AIPN handle natively. Channel 0 measures grid-side voltage; channels 1 and 2 measure grid current and PV current respectively, allowing net-energy calculation across a daily cycle. The wide -40C to +85C operating range suits outdoor inverter enclosures, and the LCD driver can drive a 4-digit in-home display showing instantaneous power and cumulative kWh. Compared with class-0.5 industrial ADCs, this SoC achieves IEC class-0.2 accuracy at lower cost.
Được đề xuất
Industrial Power Monitoring Controller
Inside industrial PDUs and machine-power monitors, the MSP430F6736AIPN serves as the metering brain. Its 25 MHz MSP430 CPUXV2 core runs the metrology task plus Modbus RTU over UART, while the three SD24 ADCs simultaneously sample three-phase or multi-channel loads (single SoC handles up to three loads in single-phase systems). The wide 2.5V/3.3V supply range simplifies integration with industrial 24V-derived rails, and the integrated RTC timestamps energy logs without an external RTC chip. The 8KB RAM is sufficient for a circular event log up to several thousand entries.
Được đề xuất
In-Home Display Panel
Companion in-home displays (IHDs) for AMI smart meters pair with the MSP430F6736AIPN to show real-time kWh, cost, and CO2 footprint. The SoC's integrated LCD driver (up to 320 segments) directly drives the segmented glass without a charge-pump IC, and its ultra-low LPM3 sleep current (~1 uA with RTC) means the display can run for years on two AA batteries. The three SD24 ADCs are repurposed for an optional local-measurement mode (e.g., plug-through reference display). Compared with an LCD-driver-less MCU plus external HT1621, this SoC saves roughly $0.80 BOM.
Được đề xuất
EV Charging Station Energy Meter
AC Level-2 EVSEs require accurate, tamper-resistant single-phase metering, which the MSP430F6736AIPN provides with three SD24 ADCs and 128KB Flash for the OCPP 1.6/2.0.1 communication stack. The integrated RTC supports time-of-use billing aligned with utility schedules, and the wide -40C to +85C range handles outdoor cabinet thermal stress. Compared with class-0.2 industrial metering ICs (e.g., ADE7953), the MSP430F6736AIPN delivers equivalent accuracy with a 32-bit math advantage for harmonic analysis, plus full LCD support for the EVSE's user interface.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MSP430F6736AIPN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MSP430F6735AIPN | MSP430F6737AIPN | MSP430F6734AIPN | MSP430F6733AIPN | MSP430F6736AIPNR |
|---|---|---|---|---|---|---|
| Package | 80-LQFP (PN) 12x12 mm | 80-LQFP (PN) 12x12 mm - same | 80-LQFP (PN) 12x12 mm - same | 80-LQFP (PN) 12x12 mm - same | 80-LQFP (PN) 12x12 mm - same | 80-LQFP (PN) 12x12 mm - same |
| Brand | Texas Instruments | Texas Instruments - same | Texas Instruments - same | Texas Instruments - same | Texas Instruments - same | Texas Instruments - same |
| Flash Memory | 128 KB | 64 KB (-50%) | 256 KB (+100%) | 32 KB (-75%) | 32 KB (-75%) | 128 KB (same) |
| RAM | 8 KB | 8 KB (same) | 16 KB (+100%) | 4 KB (-50%) | 4 KB (-50%) | 8 KB (same) |
| SD24 ADC Count | 3 x 24-bit | 3 x 24-bit (same) | 3 x 24-bit (same) | 3 x 24-bit (same) | 3 x 24-bit (same) | 3 x 24-bit (same) |
| LCD Driver | Yes (up to 320 segments) | Yes (up to 320 segments) | Yes (up to 320 segments) | Yes (up to 320 segments) | Yes (up to 320 segments) | Yes (up to 320 segments) |
| Real-Time Clock | Yes | Yes | Yes | Yes | No | Yes |
| Core Speed | 25 MHz | 25 MHz (same) | 25 MHz (same) | 25 MHz (same) | 25 MHz (same) | 25 MHz (same) |
| Operating Temperature | -40C to +85C | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) |
Bảo phân biệt quan trọng
- Integrated 3-channel 24-bit Sigma-Delta ADC (vsMSP430F149IPMG4)
- 128KB Flash versus 60KB baseline (vsMSP430F6735AIPN)
- Same PN package with 256KB Flash upgrade path (vsMSP430F6737AIPN)
- Integrated RTC versus external chip (vsDiscrete MCU + M41T65 RTC)
Ghi chú thiết kế
Route AVCC/AVSS and VCC/VSS as separate nets joined at a single point near the IC's analog ground pin (pin 18). Place the SD24 RC antialiasing filters within 5 mm of each A0+/A0-, A1+/A1-, A2+/A2- pin pair to attenuate switching-noise injection from the digital supply. The Xin/Xout 32.768 kHz crystal traces should be short and guarded by a ground ring to keep RTC tick accuracy within +/- 20 ppm.
Use a 10 uF bulk + 100 nF ceramic decoupling on VCC (pin 27) and a separate 10 uF + 100 nF on AVCC (pin 17). The integrated LDO that derives the core rail from VCC requires at least 4.7 uF of low-ESR bulk on its output. Power-rail sequencing is not required - the part tolerates simultaneous ramp - but the RTC crystal must be present before exiting LPM4.5 retention.
Do not exceed the absolute maximum VCC of 3.6 V; reverse polarity on AVCC versus VCC can permanently destroy the internal LDO. The SD24 ADCs require a calibration cycle after each power-up; refer to the 'Single-Phase Metering with MSP430F6736' TI application note (SLAE034) for the recommended sequence. Finally, unused GPIO should be configured as outputs (not inputs left floating) to avoid parasitic current draw in LPM modes.
Keep the SD24 ADC traces differential and matched in length. Place the differential pair over a continuous ground plane and avoid crossing noisy digital traces. For class-0.2 meters, the ADC clock should be derived from the DCO locked to the 32 kHz crystal (REFO mode) rather than the DCO directly, to keep gain error below 0.1% across the industrial temperature range.
Thông tin tuân thủ
RoHS compliant per TI product page. Not AEC-Q100 qualified - this is a metering MCU, not an automotive part. Halogen-free status not explicitly listed in provided web data.
