Datasheet

 2015 Microchip Technology Inc. DS50002279B-page 3
RN4020
1.0 DEVICE OVERVIEW
The RN4020 Bluetooth Low Energy RF module
integrates Bluetooth 4.1 radio baseband, MCU, digital
analog I/O, on-board stack, and ASCII command API.
Figure 1-1 shows the top view of the module. The
pinout of the module is shown in Figure 1-2, and the
description is presented in Table 1- 1 . Figure 1-3 lists all
the key components of the module.
FIGURE 1-1: RN4020 TOP VIEW
FIGURE 1-2: RN4020 PIN DIAGRAM
FIGURE 1-3: RN4020 BLOCK DIAGRAM
















 

 



*1'
$,2
$,2
$,2
8$57B7;
8$57B5;
:$.(B6:
&0'0/'3
*1'
9''
6&/
6'$
569'
3:03,2
5763,2
63,3,2
*1' 3,26&.3:0 3,2&63:0
3,2026,3:0 3,20,62 3,2/CTS
:$.(B+:
*1'
High-Performance
Integrated Antenna
128b AES Encryption
GPIO
10-bit ADC
UART
BTLE v 4.1 Core
with BT SIG Certified
Firmware GATT/GAP
UART Interface
3x Analog I/O
4 PWM I/O, I
2
C Comm.
1.8 – 3.6V
Radio
Modem
64KB serial
Flash for
User profiles
and scripts
Crystal
RN4020 Bluetooth
©
4.1 Low Energy Module
VReg