전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

FM811MUX 데이터시트(PDF) 4 Page - Fairchild Semiconductor

부품명 FM811MUX
상세설명  Microprocessor Reset Circuits
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  FAIRCHILD [Fairchild Semiconductor]
홈페이지  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FM811MUX 데이터시트(HTML) 4 Page - Fairchild Semiconductor

  FM811MUX Datasheet HTML 1Page - Fairchild Semiconductor FM811MUX Datasheet HTML 2Page - Fairchild Semiconductor FM811MUX Datasheet HTML 3Page - Fairchild Semiconductor FM811MUX Datasheet HTML 4Page - Fairchild Semiconductor FM811MUX Datasheet HTML 5Page - Fairchild Semiconductor FM811MUX Datasheet HTML 6Page - Fairchild Semiconductor  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
FM811/812
4
REV. 1.5.1 7/15/02
Circuit Description
Microprocessor Reset
The RESET pin is asserted whenever VCC falls below the
reset threshold voltage or if MR (manual reset) is forced low.
The reset pin remains asserted for a period of 40ms after
VCC has risen above the reset threshold voltage or MR has
returned high. The reset function ensures the microprocessor
is properly reset and powers up into a known condition after
a power failure. RESET will remain valid with VCC as low
as 1.4V.
VCC Transients
The FM811/ FM812 are relatively immune to negative-going
VCC glitches below the reset threshold. Typically, a negative-
going transient 125mV below the reset threshold with a
duration of 50ms (25ms for FM81_R/S/T) or less will not
cause an unwanted reset.
Manual Reset Function
Momentarily connecting the Manual Reset input pin (MR) to
GND forces a reset. Typically a Push-button switch is used
in most of the applications to force a manual reset. See
Typical Applications diagram. The reset will remain asserted
as long as MR is held low and for one reset time-out period
(140ms min.) after MR goes high. Note that this input cannot
be driven by a CMOS or TTL logic. This pin should be left
floating if manual reset feature is unused.
Interfacing to Bidirectional Reset Pins
The FM811/ FM812 can interface with µPs with
bidirectional reset pins by connecting a 4.7k
Ω resistor in
series with the FM811/ FM812 output and the µP reset pin.
RESET Valid to 0V
A resistor can be added from the RESET pin to ground to
ensure the RESET output remains low with VCC down to 0V.
A 100k
Ω resistor connected from RESET to ground is
recommended. The size of the resistor should be large
enough to not load the RESET output and small enough to
pull-down any stray leakage currents.
VTH
VCC
tR
MR
RESET
tR
FM811
µP
100k
VCC
VCC
RESET
RESET
VCC


유사한 부품 번호 - FM811MUX

제조업체부품명데이터시트상세설명
logo
SHENZHEN FUMAN ELECTRON...
FM811 FUMAN-FM811 Datasheet
214Kb / 3P
   Meteor shower
More results

유사한 설명 - FM811MUX

제조업체부품명데이터시트상세설명
logo
Analog Devices
ADM1813 AD-ADM1813_15 Datasheet
234Kb / 12P
   Microprocessor Reset Circuits
Rev. F
ADM1818 AD-ADM1818_15 Datasheet
234Kb / 12P
   Microprocessor Reset Circuits
Rev. F
ADM1812 AD-ADM1812_15 Datasheet
234Kb / 12P
   Microprocessor Reset Circuits
Rev. F
logo
Unisonic Technologies
UIC811 UTC-UIC811_15 Datasheet
268Kb / 8P
   MICROPROCESSOR RESET CIRCUITS
logo
Micrel Semiconductor
MIC809 MICREL-MIC809_05 Datasheet
285Kb / 6P
   Microprocessor Reset Circuits
MIC809 MICREL-MIC809_11 Datasheet
288Kb / 6P
   Microprocessor Reset Circuits
logo
Analog Devices
ADM1810 AD-ADM1810_08 Datasheet
381Kb / 16P
   Microprocessor Reset Circuits
Rev. E
logo
Kingbor Technology Co
KB862 KINGBOR-KB862 Datasheet
184Kb / 6P
   Microprocessor Reset circuits
logo
Micrel Semiconductor
MIC809 MICREL-MIC809 Datasheet
166Kb / 8P
   Microprocessor Reset Circuits
logo
Unisonic Technologies
UIC811 UTC-UIC811 Datasheet
219Kb / 9P
   MICROPROCESSOR RESET CIRCUITS
More results


Html Pages

1 2 3 4 5 6


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
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