STM32F407VET6 STMicroelectronics, STM32F407VET6 Datasheet - Page 103

• Manufacturer Part Number: STM32F407VET6
• Description: Microcontrollers (MCU) ARM M4 512 FLASH 168 Mhz 192kB SRAM
• Manufacturer: STMicroelectronics

Specifications of STM32F407VET6

• Core: ARM Cortex M4
• Processor Series: STM32F4
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 168 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 192 KB
• On-chip Adc: Yes
• Number Of Programmable I/os: 82
• Number Of Timers: 10
• Operating Supply Voltage: 1.7 V to 3.6 V
• Package / Case: LQFP-100
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 16
• Interface Type: CAN, I2C, I2S, SPI, UART
• Program Memory Type: Flash
• Lead Free Status / Rohs Status: Details

STM32F405xx, STM32F407xx
5.3.17
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 47.
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
Figure 35. Recommended NRST pin protection
2. The reset network protects the device against parasitic resets.
3. The user must ensure that the level on the NRST pin can go below the V
V
V
V
T
V
V
Table
NF(NRST)
IH(NRST)
IL(NRST)
NRST_OUT
Symbol
F(NRST)
hys(NRST)
to the series resistance must be minimum
Table
R
PU
47. Otherwise the reset is not taken into account by the device.
11.
(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
Generated reset pulse duration
Table
44).
Parameter
Doc ID 022152 Rev 2
(~10% order)
(2)
.
Reset source
V
Conditions
DD
V
DD
Internal
IN
> 2.7 V
supply voltage conditions summarized
=
Table 47
V
SS
are derived from tests
IL(NRST)
–0.5
Min
300
30
20
2
-
-
Electrical characteristics
max level specified in
Typ
200
40
-
-
-
-
-
V
DD
Max
100
0.8
50
-
-
-
+0.5
103/167
Unit
mV
kΩ
ns
ns
µs
V