Specifications

24 CY3214-PSoCEVALUSB Kit Guide, Doc No. 001-67030 Rev. *B
Hardware
Figure 4-5. CapSense Buttons
4.2.3 Legacy DB9 Connector (J1)
This connector is used for serial interface. Connect the serial cable to the DB9 connector and the
serial port on the PC. The supply voltage is 3.3 V to 5 V; the output voltage Vout (high) is Vcc–0.6 V
and Vout (low) is 0.4 V.
Figure 4-6. DB9 Connector
Table 4-2. IC Description
Pin No. Pin Name Description
1 C1+ Connected to +ve of capacitor C3
2 V+ Vcc supply
3 C1– Connected to –ve of capacitor C3
4 C2+ Connected to +ve of capacitor C4
5 C2– Connected to –ve of capacitor C4
6 V– Vcc ground
7 T2 out Request to send (OUT)
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