Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

Download PDF

Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

RN7211

RENERGY · Microcontroller Units (MCUs/MPUs/SOCs) · LQFP-64(7x7)

RN7211 from RENERGY, in a LQFP-64(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	LDO33	power_out	3.3V metering LDO output powering the Sigma-Delta ADC, with 0.1uF and 10uF capacitors connected externally.
2	AIN4/LVDIN/P04	bidirectional	P04 GPIO multiplexed with SAR-ADC input AIN4 and LVDIN input (PABUS3 type).
3	UP	input	Positive analog input of the voltage channel.
4	UN	input	Negative analog input of the voltage channel.
5	IBP	input	Positive analog input of current channel B.
6	IBN	input	Negative analog input of current channel B.
7	IAP	input	Positive analog input of current channel A, maximum gain 16x; maximum differential input signal is ±1V at PGA=1.
8	IAN	input	Negative analog input of current channel A.
9	AGND	power_in	Analog ground.
10	REFV	passive	Reference input of the Sigma-Delta ADC, with 0.1uF and 10uF capacitors connected externally.
11	VCC	power_in	2.8V~5.5V power supply input, decoupled with 10uF in parallel with 0.1uF.
12	RSTN	input	Active-low reset input with internal pull-up resistor.
13	XO	output	32.768kHz passive crystal output; no external resistor or capacitor needed, isolate with ground trace.
14	XI	input	32.768kHz passive crystal input; no external resistor or capacitor needed, isolate with ground trace.
15	P14/KEY4/TC1OUTn0/TCI	bidirectional	GPIO multiplexed with KEY4 input and timer output/input; pull-up, TTL/CMOS level and open-drain selectable.
16	P15/KEY5/TC1OUTp0/TCI	bidirectional	GPIO multiplexed with KEY5 input and timer output/input; pull-up, TTL/CMOS level and open-drain selectable.
17	P16/KEY6/TC1OUTn1/TCI	bidirectional	GPIO multiplexed with KEY6 input and timer output/input; pull-up, TTL/CMOS level and open-drain selectable.
18	P17/KEY7/TC1OUTp1/TCI	bidirectional	GPIO multiplexed with KEY7 input and timer output/input; pull-up, TTL/CMOS level and open-drain selectable.
19	DGND	power_in	Digital ground.
20	P110/SPI_SCSN	bidirectional	P11 port SPI chip select; P11 SPI cannot be used simultaneously with P4 SPI; pull-up, TTL/CMOS and open-drain selectable.
21	P111/SPI_SCLK	bidirectional	P11 port SPI clock; P11 SPI cannot be used simultaneously with P4 SPI; pull-up, TTL/CMOS and open-drain selectable.
22	P112/SPI_MISO	bidirectional	P11 port SPI MISO; P11 SPI cannot be used simultaneously with P4 SPI; pull-up, TTL/CMOS and open-drain selectable.
23	P113/SPI_MOSI	bidirectional	P11 port SPI MOSI; P11 SPI cannot be used simultaneously with P4 SPI; pull-up, TTL/CMOS and open-drain selectable.
24	LDO18	power_out	1.8V LDO output, decoupled externally with 10uF in parallel with 0.1uF.
25	P46/SPI_MISO	bidirectional	P4 port multiplexed with SPI MISO; pull-up, TTL/CMOS and open-drain selectable.
26	P47/SPI_MOSI	bidirectional	P4 port multiplexed with SPI MOSI; pull-up, TTL/CMOS and open-drain selectable.
27	DGND	power_in	Digital ground.
28	P84	bidirectional	P84 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
29	P83	bidirectional	P83 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
30	P82	bidirectional	P82 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
31	P81	bidirectional	P81 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
32	P80	bidirectional	P80 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
33	P52/SCL	bidirectional	P5 port multiplexed with I2C SCL; pull-up, TTL/CMOS and open-drain selectable.
34	P53/SDA	bidirectional	P5 port multiplexed with I2C SDA; pull-up, TTL/CMOS and open-drain selectable.
35	P54/RX5	bidirectional	P54 GPIO multiplexed with UART5 input.
36	P55/TX5	bidirectional	P55 GPIO multiplexed with UART5 output.
37	P40/7816CLK	bidirectional	GPIO multiplexed with 7816 clock; pull-up, TTL/CMOS and open-drain selectable.
38	P41/78160_IO	bidirectional	GPIO multiplexed with bidirectional data port of 7816 interface 0.
39	P42/78161_IO	bidirectional	GPIO multiplexed with data port of 7816 interface 1 (data output when configured by register).
40	P43/78161_I/TCI	bidirectional	GPIO multiplexed with 7816 interface 1 data input and timer input.
41	DGND	power_in	Digital ground.
42	P20/RX0	bidirectional	P2 port multiplexed with UART0 input; pull-up, TTL/CMOS and open-drain selectable.
43	P21/TX0	bidirectional	P2 port multiplexed with UART0 output; pull-up, TTL/CMOS and open-drain selectable.
44	P22/RX1	bidirectional	P2 port multiplexed with UART1 input; pull-up, TTL/CMOS and open-drain selectable.
45	P23/TX1	bidirectional	P2 port multiplexed with UART1 output; pull-up, TTL/CMOS and open-drain selectable.
46	P103	bidirectional	P103 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
47	P102	bidirectional	P102 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
48	P37/INT7/HOSCI	bidirectional	P3 port/interrupt/high-frequency crystal input; crystal port needs a 10M ohm series resistor and two 15pF capacitors.
49	P36/INT6/HOSCO	bidirectional	P3 port/interrupt/high-frequency crystal output; crystal port needs a 10M ohm series resistor and two 15pF capacitors.
50	P101	bidirectional	P101 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
51	P100	bidirectional	P100 GPIO (PBUSG3, open-drain when GPIO so external pull-up is required).
52	DGND	power_in	Digital ground.
53	P10/KEY0/TC0OUTn0/TCI	bidirectional	GPIO multiplexed with KEY0 input and timer I/O; pull-up, TTL/CMOS and open-drain selectable.
54	P11/KEY1/TC0OUTp0/TCI	bidirectional	GPIO multiplexed with KEY1 input and timer I/O; pull-up, TTL/CMOS and open-drain selectable.
55	P12/KEY2/TC0OUTn1/TCI	bidirectional	GPIO multiplexed with KEY2 input and timer I/O; pull-up, TTL/CMOS and open-drain selectable.
56	P30/INT0/TCI/TX4	bidirectional	GPIO multiplexed with external interrupt 0, timer input and UART4 TX; pull-up selectable, Schmitt input, 6mA drive.
57	P31/INT1/TCI/RX4	bidirectional	GPIO multiplexed with external interrupt 1, timer input and UART4 RX; pull-up selectable, Schmitt input, 6mA drive.
58	P32/INT2/RTCOUT	bidirectional	GPIO multiplexed with external interrupt 2 and RTC pulse output; pull-up selectable, Schmitt input, 6mA drive.
59	P51/QF	bidirectional	P51 GPIO multiplexed with reactive energy pulse output; pull-up selectable, Schmitt input, 6mA drive.
60	P50/PF	bidirectional	P50 GPIO multiplexed with active energy pulse output; pull-up selectable, Schmitt input, 6mA drive.
61	P34/INT4/SF	bidirectional	P34 GPIO multiplexed with external interrupt 4 and apparent energy pulse SF; 6mA drive.
62	P35/INT5/TCI	bidirectional	P35 GPIO multiplexed with external interrupt 5 and timer input; pull-up selectable, Schmitt input, 6mA drive.
63	SWDCLK/P24/RX2	bidirectional	SWD clock, UART2 input and P24 multiplexed; pull-up, TTL/CMOS and open-drain selectable.
64	SWDIO/P25/TX2	bidirectional	SWD data, UART2 output and P25 multiplexed; pull-up, TTL/CMOS and open-drain selectable.

Key specifications

Parameter	Value
Manufacturer	RENERGY
Package	LQFP-64(7x7)
Category	Embedded Processors & Controllers
Pins	64

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Main supply voltage	VCC	2.8		5.5	V	typ 5/3.3	13
Reference output voltage	Vref	1.25	1.26	1.27	V	VCC=3V~~5.5V, -40℃~~+85℃	13
Reference temperature coefficient	Tc		5	15	ppm/℃	VCC=3V~~5.5V, -40℃~~+85℃	13
CMP2 threshold	CMP2	1.1	1.22	1.35	V	threshold for CMP2 output low result	13
LCD output voltage	LCDVD	4.85	5.05	5.25	V	full temperature range test	13
Internal high-frequency RC clock	RCH	1.4	1.6	1.8	MHz	default clock after reset	13
Internal low-frequency RC clock	RCL	20	30	40	KHz	used for WDT clock	13
CPU minimum operating voltage	Vil	2.1	2.2	2.35	V	room temperature	13
CPU minimum operating voltage (low temp)	Vil	2	2.15	2.3	V	-40 degrees	13
CPU minimum operating voltage (high temp)	Vil	2.2	2.3	2.45	V	85 degrees	13
LDO33 output voltage	V33	3.2	3.3	3.4	V		13
LDO18 output voltage	V1P8	1.62	1.8	1.98	V		14
Supply voltage	Vvcc	-0.3		7	V		14
DVDD to DGND	DVDD to DGND	-0.3		7	V		14
DVDD to AVDD	DVDD to AVDD	-0.3		0.3	V		14
Analog input voltage	V1P,V1N,V2P,V2N,V3P,V3N	-6		6	V		14
Analog input voltage vs AGND	VINA	-0.3			V	max printed as AVDD+0.3	14
Operating temperature range	TA	-40		85	℃		14
Storage temperature range	Tstg	-65		150	℃		14
Digital IO Isource (6mA type)	Isource		5	10	mA	6mA type	14
Digital IO Isink (6mA type)	Isink		7	15	mA	6mA type	14
Digital IO Isource (3mA type)	Isource		3	5	mA	3mA type	14
Digital IO Isink (3mA type)	Isink		5	10	mA	3mA type	14
Analog current	AIdd		2		mA	all three ADCs on	13
Digital current	DIdd		1.5		mA	CPU at 3.6864MHz, metering on	13
Sleep current	SIdd		10		μA	RTC auto temp comp; RAM retained; WDT on; power monitor on; interrupt wake	13

CAD (KiCad official)

Symbol: RN7211
Footprint: Package_QFP:LQFP-64_7x7mm_P0.4mm
3D model: LQFP-64(7x7) (KiCad packages3D, STEP)
3D model files: rn7211-etched.step / rn7211-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rn7211.step / rn7211.glb are the bare package body.

Provenance

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

Datasheet: RENERGY datasheet (35 pp, sha256 f278a4b6d65d33dc, retrieved 2026-10-23, 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 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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