STM32L-DISCOVERY STMicroelectronics, STM32L-DISCOVERY Datasheet - Page 76

• Manufacturer Part Number: STM32L-DISCOVERY
• Description: BOARD, EVAL, STM32L-DISCOVERY
• Manufacturer: STMicroelectronics
• Series: STM32r
• Type: MCUr

Specifications of STM32L-DISCOVERY

• Kit Contents: Board, Debugger, Programmer And Compiler
• Features: 128KB Flash Plus Multiple Timers, Analogue Peripherals
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: STM32
• Silicon Family Name: STM32F1xx
• Rohs Compliant: Yes
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STM32L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical characteristics
5.3.8
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External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in
external clock source, and under ambient temperature and supply voltage conditions
summarized in
Table 23.
1. Guaranteed by design, not tested in production.
Low-speed external user clock generated from an external source
The characteristics given in
external clock source, and under ambient temperature and supply voltage conditions
summarized in
Table 24.
1. Guaranteed by design, not tested in production.
DuCy
DuCy
Symbol
Symbol
C
C
f
f
t
t
t
HSE_ext
V
LSE_ext
V
V
t
t
V
t
t
t
w(HSE)
w(HSE)
w(LSE)
r(HSE)
f(HSE)
f(LSE)
r(LSE)
f(LSE)
in(HSE)
in(LSE)
HSEH
LSEH
HSEL
LSEL
I
I
L
L
(HSE)
(LSE)
User External clock source
frequency
OSC32_IN input pin high level
voltage
OSC32_IN input pin low level
voltage
OSC32_IN high or low time
OSC32_IN rise or fall time
OSC32_IN input capacitance
Duty cycle
OSC32_IN Input leakage current
External user clock source
frequency
OSC_IN input pin high level voltage
OSC_IN input pin low level voltage
OSC_IN high or low time
OSC_IN rise or fall time
OSC_IN input capacitance
Duty cycle
OSC_IN Input leakage current
High-speed external user clock characteristics
Low-speed external user clock characteristics
Table
Table
(1)
(1)
10.
10.
Parameter
Parameter
Table 23
Table 24
Doc ID 15818 Rev 6
(1)
(1)
(1)
(1)
(1)
result from tests performed using an high-speed
result from tests performed using an low-speed
(1)
V
SS
Conditions
V
≤ V
SS
Conditions
≤ V
IN
≤ V
IN
≤ V
DD
DD
0.7V
STM32F205xx, STM32F207xx
V
Min
450
0.7V
30
-
SS
-
-
-
Min
V
DD
45
1
5
SS
-
-
-
DD
32.768
Typ
Typ
5
-
-
-
-
-
-
8
5
-
-
-
-
-
-
0.3V
0.3V
1000
Max
V
Max
V
±1
50
70
26
20
55
±1
DD
-
-
DD
-
-
DD
DD
MHz
Unit
Unit
kHz
pF
µA
pF
µA
ns
ns
%
%
V
V