RN -42 -DS
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OVERVIEW
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Baud rate speeds: 1,200 bps up to 921 Kbps, non-standard baud rates can be programmed
Class 2 radio, 60 feet (20 meters) distance, 4 dBm output transmitter, -80 dBm typical receive sensitivity
Frequency 2,402 ~ 2,480 MHz
FHSS/GFSK modulation, 79 channels at 1-MHz intervals
Secure communications, 128-bit encryption
Error correction for guaranteed packet delivery
Configuration via the local UART and over-the-air RF
Auto-discovery/pairing does not require software configuration (instant cable replacement)
Auto-connect master, I/O pin (DTR), and character-based trigger modes
The module’s moisture sensitivity level (MSL) is 1. Table 1 shows the module’s size and weight.
Table 1. Module Size & Weight
Size
Weight
Parameter
RN-42
13.4 x 25.8 x 2
0.045
RN-42-N
19 x 13.4 x 2
0.040
Units
mm
Oz.
Tables 2 through 6 provide detailed specifications for the module.
Table 2. Environmental Conditions
-40 C ~ 85 C
-40 C ~ 85 C
Parameter
Temperature Range (Operating)
Temperature Range (Storage)
Relative Humidity (Operating)
Relative Humidity (Storage)
Table 3. Digital I/O Characteristics
Value
o o
o o
≤ 90%
≤ 90%
3.0 V ≤ VDD ≤ 3.3 V
Input Logic Level Low
Input Logic Level High
Output Logic Level Low
Output Logic Level High
All I/O pins (Except reset) Default to Weak Pull Down
Min.
-0.4
0.7 VDD
-
VDD - 0.2
+0.2
Typ.
-
-
-
-
+1.0
Max.
+0.8
VDD + 0.4
0.2
-
+5.0
Units
V
V
V
V
uA
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Version 2.2r 4/9/2012
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