User Manual

JS7688-core-board manual Hangzhou Jotale Technology Co., Ltd www.jotale.com
5
Pin introduction of JS7688-core-board pin header version
Pin Function 0 Function 1 Function 2 Function 3 comment
1 GND N/A N/A N/A Main power
GND
2 GND N/A N/A N/A Main power
GND
3 GND N/A N/A N/A Main power
GND
4 VDD3V3 N/A N/A N/A Main power
supply 3.3V DC
5 VDD3V3 N/A N/A N/A Main power
supply 3.3V DC
6 VDD3V3 N/A N/A N/A Main power
supply 3.3V DC
7 REF_CLK_O GPIO37 N/A N/A Default as
GPIO，
SYSTEM_LED
8 WDT_RST_N GPIO38 N/A N/A Default as
GPIO，
USER_KEY1
9 EPHY_LED4_N_JTRST_N GPIO39 w_utif_n[6] jtrstn_n Default as
GPIO，
WLAN_LED
10 EPHY_LED3_N_JTCLK GPIO40 w_utif_n[7] jtclk_n Default as
GPIO，
LAN2_LED
22.5mm
17
1
61
60
19
18
45mm
31.0mm
2.0mm
2.0mm
3.25mm
1.5mm
7.5mm
JS7688-core-board pin header version front view