MTU8B54E Просмотр технического описания (PDF) - Myson Century Inc
Номер в каталоге
Компоненты Описание
производитель
MTU8B54E Datasheet PDF : 23 Pages
| |||
MYSON
MTU8B54E/55E/56E/57E
TECHNOLOGY
3.6 OSCILLATOR CONFIGURATION
This device supports four oscillator modes. Users can program two configuration bits to select the appropriate
mode. These oscillator modes offered as:
• RC: Low-cost crystal
• XTAL: Standard crystal oscillator
• HFXTAL: High frequency crystal oscillator
• LFXTAL: Low frequency crystal oscillator
3.6.1 XTAL, HFXTAL or LFXTAL modes
MTU8B54E/55E/56E/57E
Internal
Circuit
SLEEP
MTU8B54E/55E/56E/57E
OSCI
RF
XTAL
OSCO
RS
C1
C2
OSCI
OSCO
Open
Clock from
external system
(a) Crystal Operation (or Ceramic Resonator)
3.6.2 RC Oscillator Mode
(b) External Clock Input Operation
R
OSCI
C
OSCO
MTU8B54E/55E/56E/57E
internal
clock
0÷4
3.7 CONFIGURATION WORD
Bit 3
Bit2
Bit1
Bit0
Code Protect WDT Enable Oscillator Type Oscillator Type
Function
1
x
x
x
EPROM unprotected
0
x
x
x
EPROM protected
x
1
x
x
Watchdog Timer enable
x
0
x
x
Watchdog Timer disable
x
x
1
1
RC
x
x
1
0
HFXTAL
x
x
0
1
XTAL
x
x
0
0
LFXTAL
Remark
Default
Default
Default
Revision 1.2
- 11 -
24 October 2000
Share Link: 