Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

HT45R22E Datasheet(PDF) 53 Page - Holtek Semiconductor Inc

Part # HT45R22E
Description  Remote Type 8-bit OTP MCU with EEPROM
PDF  72 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45R22E Datasheet(HTML) 53 Page - Holtek Semiconductor Inc

Back Button HT45R22E Datasheet HTML 49Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 50Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 51Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 52Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 53Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 54Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 55Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 56Page - Holtek Semiconductor Inc HT45R22E Datasheet HTML 57Page - Holtek Semiconductor Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 53 / 72 page
background image
HT45R22E
Rev. 1.00
53
March 17, 2010
· SCOMC Register
Bit
76543210
Name
¾
ISEL1
ISEL0
SCOMEN
COM3EN
COM2EN
COM1EN
COM0EN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
00000000
Bit 7
Reserved bit
1: Unpredictable operation - bit must NOT be set high
0: Correct level - bit must be reset to zero for correct operation
Bit 6,5
ISEL1, ISEL0: SCOM operating current selection (VDD=3V)
00: 25
mA
01: 50
mA
10: 100
mA
11: 200
mA
Bit 4
SCOMEN: SCOM module On/Off control
0: disable
1: enable
SCOMn can be enable by COMnEN if SCOMEN=1
Bit 3
COM3EN: PB3 or SCOM3 selection
0: GPIO
1: SCOM3
Bit 2
COM2EN: PB2 or SCOM2 selection
0: GPIO
1: SCOM2
Bit 1
COM1EN: PB1 or SCOM1 selection
0: GPIO
1: SCOM1
Bit 0
COM0EN: PB0 or SCOM0 selection
0: GPIO
1: SCOM0
Configuration Options
Configuration options refer to certain options within the MCU that are programmed into the OTP Program Memory de-
vice during the programming process. During the development process, these options are selected using the HT-IDE
software development tools. As these options are programmed into the device using the hardware programming tools,
once they are selected they can not be changed later by the application software. All options must be defined for proper
system function, the details of which are shown in the table.
No.
Options
1
Watchdog Timer: enable or disable
2
Watchdog Timer clock source: LXT, LIRC or fSYS/4
Note: LXT oscillator must be selected by OSC configuration option if WDT clock source is from LXT.
3
CLRWDT instructions: 1 or 2 instructions
4
System oscillator configuration: HXT, HIRC, ERC, HIRC + LXT
5
LVR function: enable or disable
6
LVR voltage: 2.10V
7
RES or PA7 pin function
8
SST: 1024 or 2 clocks (determine tSST for HIRC/ERC)
9
Internal RC: 4095kHz



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


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