Electronic Components Datasheet Search |
|
MAX6304 Datasheet(PDF) 5 Page - Maxim Integrated Products |
|
MAX6304 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 12 page +5V, Low-Power µP Supervisory Circuits with Adjustable Reset/Watchdog _______________________________________________________________________________________ 5 ______________________________________________________________Pin Description NAME FUNCTION 1 RESET IN Reset Input. High-impedance input to the reset comparator. Connect this pin to the center point of an external resistor voltage-divider network to set the reset threshold voltage. The reset threshold voltage is calculated as follows: VRST = 1.22 x (R1 + R2) / R2 (see Typical Operating Circuit). 2 GND Ground PIN 3 SRT Set Reset-Timeout Input. Connect a capacitor between this input and ground to select the reset timeout period (tRS). Determine the period as follows: tRP = 2.67 x CSRT, with CSRT in pF and tRP in µs (see Typical Operating Circuit). 4 SWT Set Watchdog-Timeout Input. Connect a capacitor between this input and ground to select the basic watchdog timeout period (tWD). Determine the period as follows: tWD = 2.67 x CSWT, with CSWT in pF and tWD in µs. The watchdog function can be disabled by connecting this pin to ground. RESET (MAX6301/3) Push/Pull, Active-Low Reset Output (MAX6303) RESET changes from high to low whenever the monitored voltage (VIN) drops below the selected reset threshold (VRST). RESET remains low as long as VIN is below VRST. Once VIN exceeds VRST, RESET remains low for the reset timeout period and then goes high. The watchdog timer triggers a reset pulse (tRP) whenever the watch- dog timeout period (tWD) is exceeded. 6 WDI Watchdog Input. A rising or falling transition must occur on this input within the selected watchdog timeout period, or a reset pulse will occur. The capacitor value selected for SWT and the state of WDS determine the watchdog timeout period. The watchdog timer clears and restarts when a transition occurs on WDI or WDS. The watchdog timer is cleared when reset is asserted and restarted after reset deasserts. In the extended watchdog mode (WDS = VCC), the watchdog function can be disabled by driving WDI with a three-stated driver or by leaving WDI unconnected. 5 WDS Watchdog-Select Input. This input selects the watchdog mode. Connect to ground to select normal mode and the basic watchdog timeout period. Connect to VCC to select extended mode, multiplying the basic timeout period by a factor of 500. A change in the state of this pin resets the watchdog timer to zero. 7 VCC Supply Voltage RESET (MAX6302/4) Push/Pull, Active-High Reset Output (MAX6304) Open-Drain, Active-High Reset Output (MAX6302) 8 Open-Drain, Active-Low Reset Output (MAX6301) RESET changes from low to high whenever the monitored voltage (VIN) drops below the selected reset threshold (VRST). RESET remains high as long as VIN is below VRST. Once VIN exceeds VRST, RESET remains high for the reset timeout period and then goes low. The watchdog timer triggers a reset pulse (tRP) whenever the watch- dog timeout period (tWD) is exceeded. |
Similar Part No. - MAX6304 |
|
Similar Description - MAX6304 |
|
|
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 |
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 |