User's Manual

February 2017
DocID0xxxxx Rev 0.xx 6/27
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change
without notice. ww w.st.com
2 Hardware specifications
Unless otherwise specified, typical data are based on TA = 25 °C, V
DD
= 3.3 V.
2.1 Recommended operating conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
T
A
Operating ambient temperature range
-40
-
+85
°C
V
DD
Operating supply voltage
(1)
1.9
3.3
3.6
V
FREQ
RF frequency 1 for SPSGPE-433
433.05
-
434.79
MHz
FREQ
RF frequency 1 in ETSI band for SPSGPE-868
868
-
868.6
MHz
FREQ
RF frequency 2 in ETSI band for SPSGPE-868
869.4
-
869.65
MHz
FREQ
RF frequency 1 in FCC band for SPSGPE-915
902.0
-
928.0
MHz
(1) USB is not functional below V
DD
=2.0V. Should be USB compliant from I/O voltage standpoint, the
minimum V
DD
is 3.0 V. For further details, please refer to STM32L151RDY6 datasheet.
Table 1. Recommended operating conditions.
2.2 Absolute maximum ratings
Symbol
Parameter
Min.
Typ.
Max.
Unit
T
STG
Storage temperature range
-40
-
+85
°C
V
DD
Operating supply voltage
-0.3
-
3.9
V
V
IO
I/O pin voltage
-0.3
-
5.5
V
Table 2. Absolute maximum ratings.
2.3 I/O operating specifications
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
IL
(1)
I/O input low level voltage
-0.3
-
0.3 V
DD
V
V
IH
(1)
I/O input high level voltage
0.7 V
IN
-
V
DD
+0.3
V
(1) For further details, please refer to STM32L151RDY6 datasheet, I/O port features.
Table 3. I/O operating specificat