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STM32L071KB Datasheet(PDF) 91 Page - STMicroelectronics

Part # STM32L071KB
Description  Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, ADC
PDF  136 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L071KB Datasheet(HTML) 91 Page - STMicroelectronics

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STM32L071xx
Electrical characteristics
107
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 28 and
Table 60, respectively.
Unless otherwise specified, the parameters given in Table 60 are derived from tests
performed under ambient temperature and VDD supply voltage conditions summarized in
Table 25.
Table 60. I/O AC characteristics(1)
OSPEEDRx[1:0]
bit value(1)
Symbol
Parameter
Conditions
Min
Max(2) Unit
00
fmax(IO)out Maximum frequency(3)
CL = 50 pF, VDD = 2.7 V to 3.6 V
-
400
kHz
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
100
tf(IO)out
tr(IO)out
Output rise and fall time
CL = 50 pF, VDD = 2.7 V to 3.6 V
-
125
ns
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
320
01
fmax(IO)out Maximum frequency(3)
CL = 50 pF, VDD = 2.7 V to 3.6 V
-
2
MHz
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
0.6
tf(IO)out
tr(IO)out
Output rise and fall time
CL = 50 pF, VDD = 2.7 V to 3.6 V
-
30
ns
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
65
10
Fmax(IO)out Maximum frequency(3)
CL = 50 pF, VDD = 2.7 V to 3.6 V
-
10
MHz
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
2
tf(IO)out
tr(IO)out
Output rise and fall time
CL = 50 pF, VDD = 2.7 V to 3.6 V
-
13
ns
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
28
11
Fmax(IO)out Maximum frequency(3)
CL = 30 pF, VDD = 2.7 V to 3.6 V
-
35
MHz
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
10
tf(IO)out
tr(IO)out
Output rise and fall time
CL = 30 pF, VDD = 2.7 V to 3.6 V
-
6
ns
CL = 50 pF, VDD = 1.65 V to 2.7 V
-
17
Fm+
configuration(4)
fmax(IO)out Maximum frequency(3)
CL = 50 pF, VDD = 2.5 V to 3.6 V
-1
MHz
tf(IO)out
Output fall time
-
10
ns
tr(IO)out
Output rise time
-
30
fmax(IO)out Maximum frequency(3)
CL = 50 pF, VDD = 1.65 V to 3.6 V
-350
KHz
tf(IO)out
Output fall time
-
15
ns
tr(IO)out
Output rise time
-
60
-tEXTIpw
Pulse width of external
signals detected by the
EXTI controller
-8
-
ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the line reference manual for a description of GPIO Port
configuration register.
2. Guaranteed by design.
3. The maximum frequency is defined in Figure 28.
4. When Fm+ configuration is set, the I/O speed control is bypassed. Refer to the line reference manual for a detailed
description of Fm+ I/O configuration.



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