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Contents

README

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RN8302B

RENERGY · Energy Metering · LQFP-44(10x10)

RN8302B from RENERGY, in a LQFP-44(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected Not connected, floating.
2 NC unconnected Not connected, floating.
3 REFV power_out Internal 1.25V±1% reference voltage output or external reference input; requires 1µF capacitor in parallel with 0.1µF capacitor to analog ground for decoupling.
4 IAP input A-phase current sampling channel positive differential analog input, maximum 830mVp.
5 IAN input A-phase current sampling channel negative differential analog input, maximum 830mVp.
6 AGND power_in Analog ground.
7 IBP input B-phase current sampling channel positive differential analog input, maximum 830mVp.
8 IBN input B-phase current sampling channel negative differential analog input, maximum 830mVp.
9 AVCC power_in Analog power supply 3.3V±10% or 5V±10%; requires 4.7µF capacitor in parallel with 0.1µF capacitor to analog ground for decoupling.
10 ICP input C-phase current sampling channel positive differential analog input, maximum 830mVp.
11 ICN input C-phase current sampling channel negative differential analog input, maximum 830mVp.
12 VAP input A-phase voltage sampling channel positive differential analog input, maximum 830mVp.
13 VAN input A-phase voltage sampling channel negative differential analog input, maximum 830mVp.
14 VBP input B-phase voltage sampling channel positive differential analog input, maximum 830mVp.
15 VBN input B-phase voltage sampling channel negative differential analog input, maximum 830mVp.
16 VCP input C-phase voltage sampling channel positive differential analog input, maximum 830mVp.
17 VCN input C-phase voltage sampling channel negative differential analog input, maximum 830mVp.
18 INP input Neutral-line current sampling channel positive differential analog input, maximum 830mVp.
19 INN input Neutral-line current sampling channel negative differential analog input, maximum 830mVp.
20 RA passive Reserved pin; connect to analog ground.
21 NC unconnected Not connected, floating.
22 CF5 output Energy calibration pulse output configurable via CFCFG register as fundamental/full-wave active/reactive/apparent or high-frequency synthesis.
23 CF4 output Energy calibration pulse output configurable via CFCFG register as fundamental/full-wave active/reactive/apparent or high-frequency synthesis.
24 CF3 output Energy calibration pulse output configurable via CFCFG register as fundamental/full-wave active/reactive/apparent or high-frequency synthesis.
25 CF2 output Energy calibration pulse output configurable via CFCFG register as fundamental/full-wave active/reactive/apparent or high-frequency synthesis.
26 CF1 output Energy calibration pulse output configurable via CFCFG register as fundamental/full-wave active/reactive/apparent or high-frequency synthesis.
27 RSTN input Reset pin active low; internally floating, requires external power or 1kΩ pull-up resistor.
28 DVCC power_in Digital power supply 3.3V±10% or 5V±10%; requires 4.7µF capacitor in parallel with 0.1µF capacitor to digital ground for decoupling.
29 DGND power_in Digital ground.
30 NC unconnected Not connected, floating or connect to digital ground.
31 INTN1 output Interrupt output pin active low; default high level, toggles on interrupt event, returns high when CPU clears interrupt flag via SPI.
32 SDO output SPI serial data output; data sent at SCLK rising edge, high impedance when SCSN is high.
33 SCLK input SPI serial clock input from microcontroller; host writes when SCLK is high, chip samples at SCLK falling edge.
34 SCSN input SPI chip select signal active low.
35 SDI input SPI serial data input; valid at SCLK falling edge.
36 XO output Crystal oscillator output.
37 XI input Crystal oscillator input or external clock input, typical 8.192MHz with 15pF load capacitance.
38 VO power_out Internal voltage regulator output; requires 4.7µF capacitor in parallel with 0.1µF capacitor to digital ground, cannot connect external load.
39 DGND power_in Digital ground.
40 DVCC power_in Digital power supply 3.3V±10% or 5V±10%; requires 4.7µF capacitor in parallel with 0.1µF capacitor to digital ground for decoupling.
41 RB passive Reserved pin; connect to DVCC or digital ground.
42 PM input Default working mode selection input: PM=1 for sleep mode (SLM), PM=0 for metering mode (EMM); internally floating, requires external 1kΩ pull-up or ground.
43 RC passive Reserved pin; connect to digital ground.
44 NC unconnected Not connected, floating.

Key specifications

Parameter Value
Manufacturer RENERGY
Package LQFP-44(10x10)
Category Data Acquisition
Pins 44

CAD (KiCad official)

  • Symbol: RN8302B
  • Footprint: Package_QFP:LQFP-44_10x10mm_P0.8mm
  • 3D model: LQFP-44(10x10) (KiCad packages3D, STEP)
  • 3D model files: rn8302b-etched.step / rn8302b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rn8302b.step / rn8302b.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: RENERGY datasheet (40 pp, sha256 e1743f6e34ac1230, retrieved 2026-09-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF