STM32F107RCT6TR STMicroelectronics, STM32F107RCT6TR Datasheet - Page 59

• Manufacturer Part Number: STM32F107RCT6TR
• Description: IC ARM CORTEX MCU 256KB 64LQFP
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32F107RCT6TR

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 72MHz
• Connectivity: CAN, Ethernet, I²C, IrDA, LIN, SPI, UART/USART, USB OTG
• Peripherals: DMA, POR, PWM, Voltage Detect, WDT
• Number Of I /o: 51
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LFQFP
• Core: ARM Cortex M3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

STM32F105xx, STM32F107xx
5.3.13
Figure 22. I/O AC characteristics definition
NRST pin characteristics
The NRST pin input driver uses CMOS technology. It is connected to a permanent pull-up
resistor, R
Unless otherwise specified, the parameters given in
performed under the ambient temperature and V
in
Table 38.
1. Guaranteed by design, not tested in production.
2. The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution
V
V
V
V
V
Table
NF(NRST)
IH(NRST)
IL(NRST)
Symbol
F(NRST)
hys(NRST)
to the series resistance must be minimum
R
PU
9.
(1)
(1)
(1)
(1)
PU
NRST pin characteristics
(see
NRST Input low level voltage
NRST Input high level voltage
NRST Schmitt trigger voltage
hysteresis
Weak pull-up equivalent resistor
NRST Input filtered pulse
NRST Input not filtered pulse
EXT ERNAL
OUTPUT
ON 50pF
Maximum frequency is achieved if (t r + t f ) 2/3)T and if the duty cycle is (45-55%)
Table
35).
Parameter
t r(I O)out
Doc ID 15274 Rev 5
(~10% order)
10%
50%
when loaded by 50pF
90%
(2)
.
V
Conditions
DD
V
DD
IN
T
10%
> 2.7 V
supply voltage conditions summarized

Table 38
V
50%
SS
90%
t r(I O)out
are derived from tests
–0.5
Min
300
30
2
Electrical characteristics
Typ
200
40
V
DD
Max
100
0.8
50
+0.5
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Unit
mV
k
ns
ns
V