STM32L152-EVAL STMicroelectronics, STM32L152-EVAL Datasheet - Page 76

• Manufacturer Part Number: STM32L152-EVAL
• Description: BOARD EVALUATION FOR STM32L
• Manufacturer: STMicroelectronics
• Type: MCUr

Specifications of STM32L152-EVAL

• New! Us2012 Catalog Page: STM8L-Discovery_STM32L152-EVAL
• Contents: Board
• Processor To Be Evaluated: STM32L1xxx
• Interface Type: UART
• Operating Supply Voltage: 2 V to 3.6 V
• For Use With/related Products: STM32L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10842

Electrical characteristics
6.3.12
76/107
Figure 18. I/O AC characteristics definition
NRST pin characteristics
The NRST pin input driver uses CMOS technology.
Unless otherwise specified, the parameters given in
performed under ambient temperature and V
Table
Table 40.
1. Guaranteed by design, not tested in production.
2. 200 mV minimum value
3. The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution
V
V
V
V
V
V
OL(NRST)
NF(NRST)
IH(NRST)
IL(NRST)
Symbol
F(NRST)
hys(NRST)
to the series resistance is around 10%.
R
9.
PU
Maximum frequency is achieved if (t
(1)
(1)
(1)
(1)
(1)
External
on 50pF
Output
NRST pin characteristics
NRST input low level voltage
NRST input high level voltage
NRST output low level
voltage
NRST Schmitt trigger voltage
hysteresis
Weak pull-up equivalent
resistor
NRST input filtered pulse
NRST input not filtered pulse
t r(I O)out
(3)
Parameter
10%
50%
Doc ID 17659 Rev 4
when loaded by 50 pF
90%
r
+ t
f
)  2/3)T and if the duty cycle is (45-55%)
1.65 V < V
2.7 V < V
T
10%
DD
I
Conditions
OL
I
OL
V
50%
supply voltage conditions summarized in
IN
= 1.5 mA
= 2 mA

DD
90%
DD
Table 40
V
t r(I O)out
SS
< 3.6 V
< 2.7 V
STM32L151xx, STM32L152xx
are derived from tests
10%V
Min
V
350
1.4
30
SS
DD
(2)
ai14131
Typ Max Unit
45
V
0.8
0.4
60
50
DD
mV
k
ns
ns
V