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RN8209D

Public Made by Adom

by adom

RENERGY Energy Metering, SSOP-24. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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docs rn8209d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers rn8209d: viewers · Ray 26d ago
package.json Publish 0.1.0 · Ray 26d ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md rn8209d: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 15d ago
rn8209d-etched.fit.json rn8209d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
rn8209d-etched.glb rn8209d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
rn8209d-etched.step rn8209d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
rn8209d.glb Publish 0.1.0 · Ray 26d ago
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rn8209d.step Publish 0.1.0 · Ray 26d ago

RN8209D

RENERGY · Energy Metering · SSOP-24

RN8209D from RENERGY, in a SSOP-24. 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 AVDD power_in Analog power supply for the analog portion of the chip. Requires 10µF + 0.1µF decoupling. Normal application range 3V-5.5V, typical 3.3V or 5V ±10%.
2 RST_N input Active-low reset pin. When held low the chip is in reset. Requires an external pull-up resistor.
3 NC unconnected Not connected.
4 V1P input Positive analog input of current Channel A. Fully differential input, max normal Vpp ±1000mV, max withstand ±6V.
5 V1N input Negative analog input of current Channel A. Fully differential input, max normal Vpp ±1000mV, max withstand ±6V.
6 V2P input Positive analog input of current Channel B. Fully differential input, max normal Vpp ±1000mV, max withstand ±6V.
7 V2N input Negative analog input of current Channel B. Fully differential input, max normal Vpp ±1000mV, max withstand ±6V.
8 V3P input Positive analog input of the voltage channel. Fully differential input, max normal Vpp ±1000mV, max withstand ±6V.
9 V3N input Negative analog input of the voltage channel. Fully differential input, max normal Vpp ±1000mV, max withstand ±6V.
10 REFV bidirectional 1.25V reference voltage input/output. Internal or external reference can be used; decouple with 1µF + 0.1µF capacitors to AGND.
11 AGND power_in Analog ground.
12 IS input Serial interface select. IS=0 → UART interface; IS=1 → SPI interface. Pin is internally floating; an external pull-up or pull-down is required.
13 SDO/TX output Multiplexed serial output: SPI SDO when IS=1 (high-impedance after reset) or UART TX data output when IS=0.
14 SDI/RX/RST_N input Multiplexed serial input: SPI SDI when IS=1 (3.3V/5V-compatible), or UART RX when IS=0. Also acts as an independent reset pin (equivalent to the dedicated RST_N pin) when held low.
15 SCLK/B0 input Multiplexed pin: SPI serial clock input when IS=1 (3.3V/5V-compatible); when IS=0 acts as B0, combined with B1 to select UART baud rate ({B1,B0}=00/01/10/11 → 2400/4800/9600/19200 bps).
16 SCSN/B1 input Multiplexed pin: SPI chip-select (active low) when IS=1 (3.3V/5V-compatible, requires external pull-up); when IS=0 acts as B1 baud-select bit for UART (see B0).
17 DGND power_in Digital ground.
18 DVDD power_in Digital power supply for the digital portion of the chip. Requires 10µF + 0.1µF decoupling. Normal application range 3V-5.5V, typical 3.3V or 5V ±10%.
19 OSCI input External crystal input / external clock input. Typical crystal frequency 3.579545MHz, external capacitor 15pF-22pF. Internal ~4MΩ feedback resistor is present (no external resistor needed); crystal ESR must be <50Ω.
20 OSCO output External crystal output.
21 NC unconnected Not connected.
22 IRQ_N/ZX output Interrupt or zero-crossing indicator output. After reset acts as interrupt request IRQ_N (Zxcfg=EMUCON bit7 = 0). When Zxcfg=1, outputs a zero-crossing indication (ZX) on the voltage channel.
23 PF output Active energy pulse output, low-level output by default. Pulse frequency indicates transient active power. Capable of 5mA output/sink.
24 QF output Reactive energy pulse output or user-defined pulse output, low-level output by default. Frequency indicates transient reactive or user-defined power. User-defined source can be Channel-B active power or vector sum of the two channels. Capable of 5mA output/sink.

Key specifications

Parameter Value
Manufacturer RENERGY
Package SSOP-24
Category Data Acquisition
Pins 24

Ordering variants

Same part, different packaging or reel option.

  • RN8209D
  • RN8209C

CAD (KiCad official)

  • Symbol: RN8209D
  • Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
  • 3D model: SSOP-24 (KiCad packages3D, STEP)
  • 3D model files: rn8209d-etched.step / rn8209d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rn8209d.step / rn8209d.glb are the bare package body.

Provenance

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

  • Datasheet: RENERGY datasheet (47 pp, sha256 98eac50d43fd9f51, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF