HM-TRS
Pins description
Pin
P4
P3
P2
P1
VCC
DRX
DTX
CONFIG
ENABLE
Function
Reserved
Reserved
Reserved
Reserved
Power supply
Data reception
Data transmission
Configure enable
Work enable
V2.1
NC
GND
Pin Testing
Ground
Note
Not used, keep floating
Not used, keep floating
Not used, keep floating
Not used, keep floating
Supply voltage (2.2-3.8V)
Module data output
Module data input
If this pin is hi at power on, module will enter configure
mode, or the module enter normal mode
If this pin is low in normal mode, the module will enter
sleep mode immediately; if this pin is hi, the module will
enter normal work mode.
Keep floating
Power ground
Basic Parameters
Condition/note
Power supply
Temperature
3 bands
Frequency
Pmax differs
Power output
Frequency dev
Receiver
bandwidth
Serial data rate
Serial data bit
No check, odd/even
Serial check
check
Serial stop bit
Frequency(detailed)
Model
Condition/note
HM-TRS433
HM-TRS868
HM-TRS915
Max power out(Pmax)
Model
Condition/note
HM-TRS433
HM-TRS868
HM-TRS915
Sensitivity
Model
HM-TRS433
HM-TRS868
HM-TRS915
Min.
2.2
-35
430.24
Pmax-21
15
67
300
5
Typ.
3.3
25
-
Pmax
Max.
3.8
80
929.27
Pmax
240
400
19200
9
Unit
V
℃
MHz
dBm
kHz
kHz
bps
bit
9600
8
1
1
2
bit
Min.
430.24
860.48
900.72
Typ.
434
869
915
Max.
439.75
879.51
929.27
Unit
MHz
MHz
MHz
Min.
4
2
2
Typ.
6
3
3
Max.
Unit
dBm
dBm
dBm
Condition/note
Min.
-97
-95
-95
Typ.
-100
-97
-97
Max.
unit
dBm
dBm
dBm
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HOPERF [ Hope Microelectronics co., Ltd ]
