參數(shù)資料
型號(hào)： STM32F103R8T7TR
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 1.25 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, ROHS COMPLIANT, QFP-64
文件頁(yè)數(shù)： 57/92頁(yè)
文件大?。?/td> 1212K
代理商： STM32F103R8T7TR
Electrical characteristics
STM32F103x8, STM32F103xB
Doc ID 13587 Rev 11
Figure 24.
I/O AC characteristics definition
5.3.13
NRST pin characteristics
The NRST pin input driver uses CMOS technology. It is connected to a permanent pull-up
resistor, RPU (see Table 34).
Unless otherwise specified, the parameters given in Table 37 are derived from tests
performed under the ambient temperature and VDD supply voltage conditions summarized
ai14131
10%
90%
50%
tr(IO)out
OUTPUT
EXT ERNAL
ON 50pF
Maximum fr equency is achieved if (tr + tf) 2/3)T and if the duty cycle is (45-55%)
10%
50%
90%
when loaded by 50pF
T
tr(IO)out
Table 37.
NRST pin characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIL(NRST)
(1)
1.
Guaranteed by design, not tested in production.
NRST Input low level voltage
–0.5
0.8
V
VIH(NRST)
NRST Input high level voltage
2
VDD+0.5
Vhys(NRST)
NRST Schmitt trigger voltage
hysteresis
200
mV
RPU
Weak pull-up equivalent resistor(2)
2.
The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution
to the series resistance must be minimum
(~10% order)
.
VIN VSS
30
40
50
k
VF(NRST)
NRST Input filtered pulse
100
ns
VNF(NRST)
NRST Input not filtered pulse
300
ns
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STM32F103R8T7XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U6TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U6XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U7TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U7XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
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