YeaCreate-RK3326S Core Board

Features and Applications

The Core-RK3326-S module is built around four Cortex-A35 cores running at up to 1.5 GHz, featuring an optimized cache hierarchy to balance performance power efficiency.
DDR4/DDR3/DDR3L/LPDDR3/LPDDR2.
1080P H.265/H.264/VC-1/MPEG/VP8 Video Decoder.
1080P H.264/VP8 Video Encoder.
LVDS/MIPI-DSI/RGB Interface.
1x 8-channel I2S/TDM interface, 1x 8-channel PDM interface, and 2x 2-channel I2S interfaces.
It supports mainstream operating systems such as Android, Debian, and Ubuntu, as well as Buildroot-based embedded systems, ensuring adaptability for different application scenarios.
Designed with a cord board and carries board architecture, the core board serves as the minimum system, while the carrier board handles peripheral interfaces. This allows for rapid development and verification using only a 2 - 4 layer carrier board.
The core board supports fast customization with different capacities of DRAM or EMMC.
The core board has been adapted with over 10 types of Wi-Fi modules.
A reserved shield case interface is provided for reliable operation in harsh environments.
The standard configuration includes 1GB RAM and 32GB storage.

Functional Block Diagram

The RK3326S-V02 Standard Core Board utilizes the RK3326-S as its main CPU, The functional block diagram of the chip is shown below:

YeaCreate-RK3326-S functional

Applications

YeaCreate-RK3326-S Applications

Mechanical Dimensions

Top View

Bottom View

Dimensions

Width	50mm
Length	69.5mm
Tolerance	±0.5mm

Basic Parameters

The basic parameters are listed in the table below:

Name	Description
SoC	Rockchip RK3326-S
CPU	Quad-core 64-bit Cortex-A35 processor, up to 1.5 GHz
GPU	Mali-G31 2EE GPU Support OpenGL ES3.2, Vulkan 1.0, OpenCL 2.0 Embedded high-performance 2D graphics acceleration hardware.
Multimedia	Multi-format 1080p @ 60 fps video decoding (H.265, H.264, VC-1, MPEG-1/2/4, VP8). 1080p video encoding , support H.264, VP8.
Memory	LPDDR4/LPDDR4x，default 1GB
Storage	EMMC, default 32GB
Display Interface	Supports RGB, LVDS, and MIPI-DSI interfaces with a maximum resolution of 1920×1080.
Audio Interface	1 × HPR/L, Stereo Headphone Output 1 × SPK 1 × MIC Microphone Inputs
USB	1 × USB2.0 OTG
Expansion Connector	4 × UART 2 × SPI 3 × I2C 2 × I2S PCM(2ch) 1 × I2S TDM(8ch) 1 × SDIO 2 × PWM 1 × ADC

Core Board Functions

NO.	Description
1	IPEX Gen 1 Connector
2	RK3326S BOOT Button
3	RK3326S Reset Button

Pin Configuration and Functions

Core Board Interface – Odd Pin Definitions (Refer to the SoC Datasheet for detailed pin multiplexing functions.)

Pin No.	Connector Label	Description
1	GND	GND
3	GND	GND
5	GND	GND
7	SYS_5V0	SYS_5V0
9	SYS_5V0	SYS_5V0
11	SYS_5V0	SYS_5V0
13	SYS_5V0	SYS_5V0
15	SYS_5V0	SYS_5V0
17	SYS_5V0	SYS_5V0
19	SYS_5V0	SYS_5V0
21	SYS_5V0	SYS_5V0
23	-	-
25	-	-
27	GND	GND
29	GND	GND
31	GND	GND
33	VCC3V3_SYS	VCC3V3_SYS
35	VCC3V3_SYS	VCC3V3_SYS
37	VCC3V3_SYS	VCC3V3_SYS
39	-	-
41	-	-
43	-	-
45	VCC_3V0	VCC_3V0
47	VCC_3V0	VCC_3V0
49	-	-
51	-	-
53	-	-
55	GND	GND
57	-	-
59	-	-
61	-	-
63	-	-
65	-	-
67	-	-
69	GND	GND
71	CIF_CLKI	GPIO2_B2_d
73	GND	GND
75	CAM_CLKO	GPIO2_B3_d
77	GND	GND
79	CIF_D9	GPIO2_A7_d
81	CIF_D8	GPIO2_A6_d
83	CIF_VSYNC	GPIO2_B0_d
85	CIF_HREF	GPIO2_B1_d
87	CIF_D2	GPIO2_A0_d
89	CIF_D5	GPIO2_A3_d
91	CIF_D7	GPIO2_A5_d
93	CIF_D4	GPIO2_A2_d
95	CIF_D6	GPIO2_A4_d
97	CIF_D3	GPIO2_A1_d
99	GND	GND
101	USB_OTG_DM	USB_OTG_DM
103	USB_OTG_DP	USB_OTG_DP
105	GND	GND
107	USB_OTG_ID	USB_ID
109	USB_DET	USB_VBUS
111	GND	GND
113	I2S1_SCLK	GPIO2_C2_d
115	I2S1_MCLK	GPIO2_C3_d
117	I2S1_LRCK_TXRX	GPIO2_C1_d
119	I2S1_SDO	GPIO2_C4_d
121	GND	GND
123	SDMMC0_D3/JTAG_TMS	SDMMC0 Data 3
125	SDMMC0_D2/JTAG_TCK	SDMMC0 Data 2
127	SDMMC0_CMD	SDMMC0 Command Signal
129	SDMMC0_D1/UART2_RX	SDMMC0 Data1
131	SDMMC0_D0/UART2_TX	SDMMC0 Data 0
133	SDMMC0_CLK	SDMMC0 Clock Signal
135	SDMMC0_DET	GPIO0_A3
137	GND	GPIO0_A3
139	I2C1_SCL	I2C1 Clock Signal
141	I2C1_SDA	I2C1 Data Signal
143	GND	GND
145	GND	GND
147	GND	GND
149	GND	GND
151	GND	GND
153	GND	GND
155	GND	GND
157	GND	GND
159	GND	GND
161	GND	GND
163	GND	GND
165	LCDC_BL_PWM	GPIO0_C0_d
167	-	-
169	-	-
171	-	-
173	-	-
175	-	-
177	ADC0_HW_ID	ADC_IN0
179	GND	ADC_IN0
181	PHONE_DET	GPIO1_B5
183	VCC18_LCD_EN	GPIO1_B7
185	SPK_CTL_H	GPIO1_B6
187	FLASH_CLE	GPIO1_B4_d
189	GND	GND
191	BT_PCM_CLK	GPIO3_A2_d
193	LCDC_D12	GPIO3_C0_d
195	LCDC_D13	GPIO3_C1_d
197	LCDC_D15	GPIO3_C3_d
199	LCDC_D14	GPIO3_C2_d
201	LCDC_D17	GPIO3_C5_d
203	LCDC_D6	GPIO3_B2_d
205	LCDC_D16	GPIO3_C4_d
207	GND	GND
209	LVDS_MIPI_TXD0P	LVDS_MIPI_TXD0P
211	LVDS_MIPI_TXD0N	LVDS_MIPI_TXD0N
213	GND	GND
215	LVDS_MIPI_TXD1P	LVDS_MIPI_TXD1P
217	LVDS_MIPI_TXD1N	LVDS_MIPI_TXD1N
219	GND	GND
221	LVDS_MIPI_TXCLKP	LVDS_MIPI_TXCLKP
223	LVDS_MIPI_TXCLKN	LVDS_MIPI_TXCLKN
225	GND	GND
227	LVDS_MIPI_TXD2P	LVDS_MIPI_TXD2P
229	LVDS_MIPI_TXD2N	LVDS_MIPI_TXD2N
231	GND	GND
233	GND	GND
235	GND	GND
237	GND	GND
239	GND	GND
241	GND	GND
243	GND	GND
245	GND	GND
247	GND	GND
249	GND	GND
251	GND	GND
253	GND	GND
255	GND	GND
257	GND	GND
259	GND	GND

Core Board Interface – Even Pin Definitions (Refer to the SoC Datasheet for detailed pin multiplexing functions.)

Pin No.	Connector Label	Description
2	GND	GND
4	GND	GND
6	GND	GND
8	GND	GND
10	SPKP_OUT	SPK+ Speaker Positive Output
12	SPKN_OUT	SPK- Speaker Negative Output
14	GND	GND
16	GND	GND
18	MIC2_IN	MIC2- MIC2 Negative Input
20	MIC1_IN	MIC1+ MIC1 Positive Input
22	GND	GND
24	HPR	Headphone Right Channel Output
26	HPL	Headphone Left Channel Output
28	HP_SNS	HP_SNS
30	GND	GND
32	-	-
34	-	-
36	-	-
38	GND	GND
40	GND	GND
42	GND	GND
44	GND	GND
46	GND	GND
48	GND	GND
50	GND	GND
52	GND	GND
54	VCC1V8_DVP	VCC1V8_DVP
56	VCC2V8_DVP	VCC2V8_DVP
58	VDD1V5_DVP	VDD1V5_DVP
60	RESET	RESET
62	ADC1_HP_HOOK	ADC1_HP_HOOK
64	ADC2_KEY_IN	ADC2_KEY_IN
66	GND	GND
68	-	-
70	GND	GND
72	GPIO2_B4	GPIO2_B4_d
74	I2C2_SDA_CAM	I2C2 Data Signal
76	CAM_PDN0	GPIO2_B6_d
78	CAM_PDN1	GPIO2_B5_d
80	I2C2_SCL_CAM	I2C2 Clock Signal
82	GND	GND
84	-	-
86	-	-
88	-	-
90	-	-
92	GND	GND
94	MIPI_CSI_D2P	MIPI_CSI_D2P
96	MIPI_CSI_D2P	MIPI_CSI_D2P
98	GND	GND
100	-	-
102	-	-
104	GND	GND
106	MIPI_CSI_D1N	MIPI_CSI_D1N
108	MIPI_CSI_D1P	MIPI_CSI_D1P
110	GND	GND
112	MIPI_CSI_D3N	MIPI_CSI_D3N
114	MIPI_CSI_D3P	MIPI_CSI_D3P
116	GND	GND
118	MIPI_CSI_D0N	MIPI_CSI_D0N
120	MIPI_CSI_D0P	MIPI_CSI_D0P
122	GND	GND
124	MIPI_CSI_CLKN	MIPI_CSI_CLKN
126	MIPI_CSI_CLKP	MIPI_CSI_CLKP
128	GND	GND
130	-	-
132	-	-
134	-	-
136	GPIO0_A0	GPIO0_A0
138	GND	GND
140	I2C0_SCL_PMIC	I2C0 Clock Signal
142	I2C0_SDA_PMIC	I2C0 Data Signal
144	GND	GND
146	GND	GND
148	GND	GND
150	GND	GND
152	GND	GND
154	GND	GND
156	GND	GND
158	GND	GND
160	GND	GND
162	TP_RST	GPIO0_B4_u
164	GPIO0_B5_u	GPIO0_B5_u
166	TP_INT	GPIO0_B3_d
168	SENSOR_INT	GPIO0_B7_d
170	GND	GND
172	LCDC_CLK	LCDC_CLK
174	GND	GND
176	-	-
178	-	-
180	BT_REG_ON	GPIO0_C1_d
182	GPIO1_B0	GPIO1_B0
184	GND	GND
186	COMP_INT	GPIO3_B4_d
188	RK618_PWREN	GPIO3_B0_d
190	BT_PCM_IN	GPIO3_A7_d
192	BT_PCM_OUT	GPIO3_A5_d
194	BT_PCM_SYNC	GPIO3_A3_d
196	DC_DET	GPIO3_A1_d
198	LCD_RST	GPIO3_B7_d
200	RK912_IRQ	GPIO3_B6_d
202	RK618_RST	GPIO3_B1_d
204	LCDC_D23	GPIO3_D3_d
206	LCDC_D22	GPIO3_D2_d
208	LCDC_D7	GPIO3_B3_d
210	LCDC_D21	GPIO3_D1_d
212	LCDC_D9	GPIO3_B5_d
214	LCDC_D20	GPIO3_D0_d
216	LCDC_D0	GPIO3_A4_d
218	LCDC_D19	GPIO3_C7_d
220	LCDC_D2	GPIO3_A6_d
222	LCDC_D18	GPIO3_C6_d
224	GND	GND
226	-	-
228	-	-
230	-	-
232	-	-
234	-	-
236	GND	GND
238	GND	GND
240	GND	GND
242	GND	GND
244	GND	GND
246	GND	GND
248	GND	GND
250	GND	GND
252	GND	GND
254	GND	GND
256	GND	GND
258	GND	GND
260	GND	GND

Commonly used website:

YeaCreate-RK3326S Core Board Specification Sheet.pdf

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