Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

MAX6303CUA Datasheet(PDF) 9 Page - Maxim Integrated Products

Part # MAX6303CUA
Description  5V, Low-Power μP Supervisory Circuits with Adjustable Reset/Watchdog
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX6303CUA Datasheet(HTML) 9 Page - Maxim Integrated Products

Back Button MAX6303CUA Datasheet HTML 4Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 5Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 6Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 7Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 8Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 9Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 10Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 11Page - Maxim Integrated Products MAX6303CUA Datasheet HTML 12Page - Maxim Integrated Products  
Zoom Inzoom in Zoom Outzoom out
 9 / 12 page
background image
Interfacing to µPs with
Bidirectional Reset Pins
Since RESET is open-drain, the MAX6301 interfaces
easily with µPs that have bidirectional reset pins, such
as the Motorola 68HC11 (Figure 7). Connecting RESET
directly to the µP’s reset pin with a single pullup allows
either device to assert reset.
Negative-Going VCC Transients
In addition to issuing a reset to the µP during power-up,
power-down, and brownout conditions, these supervisors
are relatively immune to short-duration negative-going
transients (glitches). The Maximum Transient Duration vs.
Reset Threshold Overdrive graph in the
Typical
Operating Characteristics shows this relationship.
The area below the curves of the graph is the region in
which these devices typically do not generate a reset
pulse. This graph was generated using a negative-
going pulse applied to VIN, starting above the actual
reset threshold (VRST) and ending below it by the mag-
nitude indicated (reset-threshold overdrive). As the
magnitude of the transient increases (farther below the
reset threshold), the maximum allowable pulse width
decreases. Typically, a VCC transient that goes 100mV
below the reset threshold and lasts 50µs or less will not
cause a reset pulse to be issued.
Watchdog Input Current
Extended Mode
In extended mode (WDS = VCC), the WDI input is inter-
nally driven through a buffer and series resistor from
the watchdog counter (Figure 8). When WDI is left
unconnected, the watchdog timer is serviced within the
watchdog timeout period by a very brief low-high-low
pulse from the counter chain. For minimum watchdog
input current (minimum overall power consumption),
leave WDI low for the majority of the watchdog timeout
period, pulsing it low-high-low (> 30ns) once within the
period to reset the watchdog timer. If instead WDI is
externally driven high for the majority of the timeout
period, typically 70µA can flow into WDI.
Normal Mode
In normal mode (WDS = GND), the internal buffer that
drives WDI is disabled. In this mode, WDI is a standard
CMOS input and leakage current is typically 100pA,
regardless of whether WDI is high or low.
Ensuring a Valid
RESET/RESET Output
Down to VCC = 0V (MAX6303/MAX6304)
When VCC falls below 1V, RESET/RESET current sinking
(sourcing) capabilities decline drastically. In the case
of the MAX6303, high-impedance CMOS-logic inputs
connected to RESET can drift to undetermined
voltages. This presents no problem in most applica-
tions, since most µPs and other circuitry do not operate
with VCC below 1V.
+5V, Low-Power µP Supervisory Circuits
with Adjustable Reset/Watchdog
_______________________________________________________________________________________
9
MAX6301
VCC
RESET
VCC
VCC
RESET
GND
µP
RESET TO
OTHER SYSTEM
COMPONENTS
0.1
µF
4.7k
Figure 7. Interfacing to µPs with Bidirectional Reset I/O Pins
MAX6301
MAX6302
MAX6303
MAX6304
WATCHDOG
TIMER
TO RESET
GENERATOR
TO MODE
CONTROL
WDI
WDS
Figure 8. Watchdog Input Structure


Similar Part No. - MAX6303CUA

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX6303CUA MAXIM-MAX6303CUA Datasheet
102Kb / 12P
   5V, Low-Power uP Supervisory Circuits with Adjustable Reset/Watchdog
19-1078; Rev 0; 6/96
More results

Similar Description - MAX6303CUA

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX6301 MAXIM-MAX6301 Datasheet
102Kb / 12P
   5V, Low-Power uP Supervisory Circuits with Adjustable Reset/Watchdog
19-1078; Rev 0; 6/96
MAX6864UK16D1L MAXIM-MAX6864UK16D1L Datasheet
495Kb / 17P
   Nanopower μP Supervisory Circuits with Manual Reset and Watchdog Timer
Rev 4; 12/05
MAX6753KA29-T MAXIM-MAX6753KA29-T Datasheet
176Kb / 14P
   μP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay
Rev 6; 4/11
MAX6747KA46-T MAXIM-MAX6747KA46-T Datasheet
176Kb / 14P
   μP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay
Rev 6; 4/11
MAX6746 MAXIM-MAX6746_11 Datasheet
176Kb / 14P
   μP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay
Rev 6; 4/11
MAX6316 MAXIM-MAX6316_07 Datasheet
232Kb / 15P
   5-Pin μP Supervisory Circuits with Watchdog and Manual Reset
Rev 7; 11/07
MAX6854UK16D3-T MAXIM-MAX6854UK16D3-T Datasheet
495Kb / 17P
   Nanopower μP Supervisory Circuits with Manual Reset and Watchdog Timer
Rev 4; 12/05
MAX6854UK16D3 MAXIM-MAX6854UK16D3 Datasheet
495Kb / 17P
   Nanopower μP Supervisory Circuits with Manual Reset and Watchdog Timer
Rev 4; 12/05
MAX6316 MAXIM-MAX6316_10 Datasheet
150Kb / 14P
   5-Pin μP Supervisory Circuits with Watchdog and Manual Reset
Rev 9; 6/10
MAX6323AUT46-T MAXIM-MAX6323AUT46-T Datasheet
174Kb / 13P
   μP Supervisory Circuits with Windowed (Min/Max) Watchdog and Manual Reset
Rev 6; 1/11
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   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