STM32F417IE STMicroelectronics, STM32F417IE Datasheet - Page 87

• Manufacturer Part Number: STM32F417IE
• Description: High-performance and DSP with FPU, ARM Cortex-M4 MCU with 512 Kbytes Flash, 168 MHz CPU, Art Accelerator, Ethernet, HW crypto
• Manufacturer: STMicroelectronics

Specifications of STM32F417IE

• Core: ARM 32-bit Cortex™-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 168 MHz, memory protection unit, 210 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
• 3×12-bit, 2.4 Msps A/d Converters: up to 24 channels and 7.2 MSPS in triple interleaved mode
• General-purpose Dma: 16-stream DMA controller with FIFOs and burst support
• Up To 17 Timers: up to twelve 16-bit and two 32-bit timers up to 168 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
• 10/100 Ethernet Mac With Dedicated Dma: supports IEEE 1588v2 hardware, MII/RMII
• Cryptographic Acceleration: hardware acceleration for AES 128, 192, 256, Triple DES, HASH (MD5, SHA-1), and HMAC
• Rtc: subsecond accuracy, hardware calendar

STM32F415xx, STM32F417xx
Table 28.
1. Resonator characteristics given by the crystal/ceramic resonator manufacturer.
2. Based on characterization, not tested in production.
3. The relatively low value of the RF resistor offers a good protection against issues resulting from use in a
4. t
For C
5 pF to 25 pF range (typ.), designed for high-frequency applications, and selected to match
the requirements of the crystal or resonator (see
same size. The crystal manufacturer typically specifies a load capacitance which is the
series combination of C
can be used as a rough estimate of the combined pin and board capacitance) when sizing
C
microcontrollers” available from the ST website www.st.com.
Figure 29. Typical application with an 8 MHz crystal
1. R
Low-speed external clock generated from a crystal/ceramic resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on characterization
results obtained with typical external components specified in
the resonator and the load capacitors have to be placed as close as possible to the oscillator
pins in order to minimize output distortion and startup stabilization time. Refer to the crystal
resonator manufacturer for more details on the resonator characteristics (frequency,
package, accuracy).
t
SU(HSE
Symbol
L1
f
OSC_IN
humid environment, due to the induced leakage and the bias condition change. However, it is
recommended to take this point into account if the MCU is used in tough humidity conditions.
oscillation is reached. This value is measured for a standard crystal resonator and it can vary significantly
with the crystal manufacturer
SU(HSE)
R
g
and C
C
EXT
i
2
m
F
L1
Resonator with
integrated capacitors
(4)
value depends on the crystal characteristics.
and C
is the startup time measured from the moment it is enabled (by software) to a stabilized 8 MHz
L2
Oscillator frequency
Feedback resistor
Recommended load capacitance
versus equivalent serial
resistance of the crystal (R
HSE driving current
Oscillator transconductance
Startup time
. Refer to the application note AN2867 “Oscillator design guide for ST
HSE 4-26 MHz oscillator characteristics
L2
, it is recommended to use high-quality external ceramic capacitors in the
C L2
C L1
Parameter
L1
and C
8 MH z
resonator
R
EXT
Doc ID 022063 Rev 2
(1)
L2
. PCB and MCU pin capacitance must be included (10 pF
S
)
(3)
OSC_OU T
OSC_IN
V
DD
V
R F
with 30 pF load
= 3.3 V, V
DD
Conditions
R
Figure
Startup
S
is stabilized
controlled
= 30 Ω
Bias
gain
(1) (2)
IN
29). C
= V
SS
Table
L1
STM32F
Electrical characteristics
and C
Min
4
5
-
-
-
-
29. In the application,
f HSE
L2
Typ
200
15
2
are usually the
-
-
-
Max
26
1
-
-
-
-
ai17530
mA/V
87/168
MHz
Unit
mA
ms
kΩ
pF