Electronic Components Datasheet Search
  Indian  ▼
ALLDATASHEET.IN

X  

Preview PDF HTML

LQFP64 Datasheet(PDF) 27 Page - STMicroelectronics

Part # LQFP64
Description  Arm® Cortex®-M4 32b MCUFPU, 210DMIPS, up to 1MB Flash/1924KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
PDF  204 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LQFP64 Datasheet(HTML) 27 Page - STMicroelectronics

Back Button LQFP64 Datasheet HTML 23Page - STMicroelectronics LQFP64 Datasheet HTML 24Page - STMicroelectronics LQFP64 Datasheet HTML 25Page - STMicroelectronics LQFP64 Datasheet HTML 26Page - STMicroelectronics LQFP64 Datasheet HTML 27Page - STMicroelectronics LQFP64 Datasheet HTML 28Page - STMicroelectronics LQFP64 Datasheet HTML 29Page - STMicroelectronics LQFP64 Datasheet HTML 30Page - STMicroelectronics LQFP64 Datasheet HTML 31Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 27 / 204 page
background image
DS8626 Rev 9
27/203
STM32F405xx, STM32F407xx
Description
Two external ceramic capacitors should be connected on VCAP_1 & VCAP_2 pin. Refer to
Figure 21: Power supply scheme and Figure 16: VCAP_1/VCAP_2 operating conditions.
All packages have regulator ON feature.
Regulator OFF
This feature is available only on packages featuring the BYPASS_REG pin. The regulator is
disabled by holding BYPASS_REG high. The regulator OFF mode allows to supply
externally a V12 voltage source through VCAP_1 and VCAP_2 pins.
Since the internal voltage scaling is not manage internally, the external voltage value must
be aligned with the targeted maximum frequency. Refer to Table 14: General operating
conditions.
The two 2.2 µF ceramic capacitors should be replaced by two 100 nF decoupling
capacitors.
Refer to Figure 21: Power supply scheme
When the regulator is OFF, there is no more internal monitoring on V12. An external power
supply supervisor should be used to monitor the V12 of the logic power domain. PA0 pin
should be used for this purpose, and act as power-on reset on V12 power domain.
In regulator OFF mode the following features are no more supported:
•
PA0 cannot be used as a GPIO pin since it allows to reset a part of the V12 logic power
domain which is not reset by the NRST pin.
•
As long as PA0 is kept low, the debug mode cannot be used under power-on reset. As
a consequence, PA0 and NRST pins must be managed separately if the debug
connection under reset or pre-reset is required.
•
The standby mode is not available
Figure 9. Regulator OFF
ai18498V4
External VCAP_1/2 power
supply supervisor
Ext. reset controller active
when VCAP_1/2 < Min V12
V12
VCAP_1
VCAP_2
BYPASS_REG
VDD
PA0
NRST
Application reset
signal (optional)
VDD
V12



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com