Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

HT32F1251B Datasheet(PDF) 11 Page - Holtek Semiconductor Inc

Part # HT32F1251B
Description  32-bit Microcontroller with ARM Cortex-M3 Core
Download  35 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT32F1251B Datasheet(HTML) 11 Page - Holtek Semiconductor Inc

Back Button HT32F1251B Datasheet HTML 7Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 8Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 9Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 10Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 11Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 12Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 13Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 14Page - Holtek Semiconductor Inc HT32F1251B Datasheet HTML 15Page - Holtek Semiconductor Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 35 page
background image
Rev. 1.00
11 of 35
May 27, 2011
32-bit ARM Cortex™-M3 MCU
HT32F1251/51B/52/53
Watchdog Timer
12-bit down counter with 3-bit prescaler
Interrupt or reset event for the system
Programmable watchdog timer window function
Write protection function
The Watchdog Timer is a hardware timing circuitry that can be used to detect system failures due
to software malfunctions. It includes a 12-bit down-counting counter, a prescaler, a WDT counter
value register, a WDT delta value register, interrupt related circuits, WDT operation control
circuitry and the WDT protection mechanism. The Watchdog Timer can be operated in an interrupt
mode or a reset mode. The Watchdog Timer will generate an interrupt or a reset when the counter
counts down and reaches a zero value. If the software does not reload the counter value before
the Watchdog Timer underflow occurs, an interrupt or a reset will be generated when the counter
underflows. In addition, an interrupt or reset is also generated if the software reloads the counter
when the counter value is greater than or equal to the WDT delta value. That means the counter
must be reloaded within a limited timing window using a specific method. The Watchdog Timer
counter can be stopped while the processor is in the debug mode. The register write protection
function can be enabled to prevent it from changing the configuration of the Watchdog Timer
unexpectedly.
Real Time Clock
32-bit up-counter with a programmable prescaler
Alarm function
Interrupt and Wake-up event
The Real Time Clock, RTC, circuitry includes the APB interface, a 32-bit up-counter, a control
register, a prescaler, a compare register and a status register. Most of the RTC circuits are located
in the Backup Domain except for the APB interface. The APB interface is located in the VDD18
domain. Therefore, it is necessary to be isolated from the ISO signal that comes from the power
control unit when the VDD18 domain is powered off, i.e., when the device enters the Power-Down
mode. The RTC counter is used as a wakeup timer to generate a system resume from the Power-
Down mode.


Similar Part No. - HT32F1251B

ManufacturerPart #DatasheetDescription
logo
Holtek Semiconductor In...
HT32F1251B HOLTEK-HT32F1251B_12 Datasheet
1Mb / 35P
   Holtek 32-bit Microcontroller with ARM짰 Cortex??M3 Core
More results

Similar Description - HT32F1251B

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
LPC1766 ETC2-LPC1766 Datasheet
1Mb / 70P
   32-bit ARM Cortex-M3 microcontroller;
logo
NXP Semiconductors
LPC178X NXP-LPC178X Datasheet
1Mb / 117P
   32-bit ARM Cortex-M3 microcontroller
Rev. 2-27 May 2011
logo
Fujitsu Component Limit...
MB9BF500 FUJITSU-MB9BF500 Datasheet
784Kb / 4P
   32-bit MCUs with ARM Cortex-M3 Core
logo
Holtek Semiconductor In...
HT32F1251 HOLTEK-HT32F1251_12 Datasheet
1Mb / 35P
   Holtek 32-bit Microcontroller with ARM짰 Cortex??M3 Core
HT32F1755 HOLTEK-HT32F1755 Datasheet
1Mb / 45P
   Holtek 32-bit Microcontroller with ARM짰 Cortex??M3 Core
logo
List of Unclassifed Man...
NUC122ZD2AN ETC2-NUC122ZD2AN Datasheet
1Mb / 66P
   ARM Cortex??M0 32-BIT MICROCONTROLLER
NUC100VE3AN ETC2-NUC100VE3AN Datasheet
2Mb / 86P
   ARM Cortex??M0 32-BIT MICROCONTROLLER
logo
Nuvotem Talema
M0516LAN TALEMA-M0516LAN Datasheet
1Mb / 71P
   ARM Cortex??M0 32-BIT MICROCONTROLLER
logo
Holtek Semiconductor In...
HT32F52231 HOLTEK-HT32F52231 Datasheet
4Mb / 50P
   32-Bit ARM Cortex-M0 Microcontroller
logo
NXP Semiconductors
LPC178X-7X NXP-LPC178X-7X Datasheet
1Mb / 120P
   32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash
Rev. 4-1 May 2012
More results


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


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   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