User Manual

ZE51/61-2.4 RF module User Guide

1VV0300868 Rev.4 – 31/03/2011

Pin Pin name Pin type Signal level Function

J30 GND Gnd RF Ground connection for external antenna

J29 Ext_Antenna RF RF I/O connection to external antenna

J28 GND Gnd RF Ground connection for external antenna

J27 GND Gnd Ground

J26 GND Gnd Ground

J25 VDD Power Digital and Radio part power supply pin

J24 CTS I TTL Clear To Send

J23 RESET I TTL µC reset ( Active low with internal pull-up )

J22 RTS O TTL Request To Send

J21 RXD I TTL RxD UART – Serial Data Reception

J20 GND Gnd Ground

J19 TXD O TTL TxD UART – Serial Data Transmission

J18 STAND_BY I TTL Standby ( Active high with internal pull-down )

J17 GND Gnd Ground

J16 PROG I TTL

Signal for serial µC flashing ( Active high with internal

pull-down )

J15 GND Gnd Ground

J14 DEBUG_D I/O TTL Debug data.

J13 GND Gnd Ground

J12 GND Gnd Ground

J11 GND Gnd Ground

J10 DEBUG_C I/O TTL Debug clock

J9 RESERVED - - -

J8 RESERVED - - -

J7 IO7_A I/O analog

ADC - Analog Input N°7 (Digital I/O capability)

J6 IO6_A I/O analog

ADC - Analog Input N°6 (Digital I/O capability)

J5 IO5_A I/O analog

ADC - Analog Input N°5 (Digital I/O capability)

J4 IO4_A I/O analog

ADC - Analog Input N°4 (Digital I/O capability)

J3 IO3_A I/O analog

ADC - Analog Input N°3 (Digital I/O capability)

J2 IO2_P I/O TTL Digital I/O N°2 with 20mA sink/source capability

J1 IO1_P I/O TTL Digital I/O N°1 with 20mA sink/source capability

NOTE: reserved pins must not be connected