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Main Microcontroller

Assembly

ARM or MIPS processor running metering firmware, managing metering IC data, logging profiles, and handling communication protocol. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Microcontroller parts and their functions

5 top-level parts · 5 parts in total · full bill of materials below
Main Microcontroller parts diagram: 1 ARM cortex-M4 processor, 2 NOR flash memory, 3 SDRAM buffer, 4 RTC module, 5 metering IC interface. 5 parts in 5 top-level items.
Main Microcontroller parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 ARM Cortex-M4 Processor 1× ARM Cortex-M4 or MIPS 32-bit processor, 100–200 MHz, with AES crypto accelerator
2 NOR Flash Memory 1× 512 MB or 1 GB NOR flash storing firmware, daily/monthly profiles, and event logs (16-year retention)
3 SDRAM Buffer 1× 32–64 MB SDRAM for runtime buffers and real-time computation
4 RTC Module 1× Independent RTC with coin-cell backup, maintaining time during power loss
5 Metering IC Interface 1× SPI or I2C interface to metering IC, sampled 1–10 times per second

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for Main Microcontroller

5 top-level lines · 5 rows shown · 5 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 ARM Cortex-M4 Processor smart-meter-mcu-core 1× 1 · part
2 NOR Flash Memory smart-meter-nor-flash 1× 1 · part
3 SDRAM Buffer smart-meter-sdram 1× 1 · part
4 RTC Module smart-meter-rtc-module 1× 1 · part
5 Metering IC Interface smart-meter-measurement-interface 1× 1 · part

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Where the main microcontroller is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Smart Electricity Meter

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳JLCPCB
jlcpcb.com ↗ 		Shenzhen, CN PCB fabrication 100 pcs 2–4 wks
🇨🇳PCBWay
pcbway.com ↗ 		Shenzhen, CN PCB fab & assembly 100 pcs 2–4 wks
🇨🇳Shennan Circuits
scc.com.cn ↗ 		Shenzhen, CN PCB manufacturer 100 pcs 2–4 wks
🇮🇳Shogini Technoarts
shogini.com ↗ 		Mumbai, IN PCB manufacturer 100 pcs 2–4 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 100 pcs 2–4 wks