Skip to main content Skip to first level navigation

RICOH imagine. change.

RICOH ELECTRONIC DEVICES CO., LTD.

Skip to main content First level navigation Menu
Breadcrumbs
Main content

Watchdog Timers (WDT)

Watchdog Timer with Reset IC (VD) and LDO Regulator

Product
Name
Operating
Voltage
Range [V]
Voltage Detector Section Watchdog Timer Section Voltage Regulator Section Supply
Current
Typ.[µA]
Package Datasheet
Detector
Threshold
Range [V]
Detector
Threshold
Accuracy
Output Delay
Time*1
Typ.[ms]
WDT Timeout
Period*2
Typ.[ms]
Inhibit
pin
Output
Voltage
Range [V]
Output
Voltage
Accuracy
Output
Current
[mA]
R5101 1.5 to 10.0 1.7 to 4.5 ±2.5% 14 120 Y 1.8 to 5.0 ±2.5% 50 5 SSOP-8G Consumer
R5110*3
3.5 to 36.0 1.6 to 5.0 ±1.8%*4 242 18 Y/N 1.8 to 5.0 ±1.5%*4 500 25 HSOP-8E
HSOP-18
Consumer
  • : Products partially available for applications under a high temperature environment. For details, please refer to each product page or High Temperature Products.
  • *1R5101G: CD = 0.001µF, R5110S: CD = 0.22µF
  • *2R5101G: CW = 0.01µF, R5110S: CTW = 0.01µF
  • *3Window Watchdog Timer
    Window watchdog timer monitors microprocessor activity and asserts a reset signal if the watchdog pulse does not occur witin the defined time window (open window) or if the watchdog pulse occurs within the defined time widown (close window).
  • *4Detector Threshold Accuracy in all temperature range.

Tap to see the table

Watchdog Timer with Reset IC (VD)

Product
Name
Operating
Voltage
Range [V]
Voltage Detector Section Watchdog Timer Section Supply
Current
Typ.[µA]
Remarks Package Datasheet
Detector
Threshold
Range [V]
Detector
Threshold
Accuracy
Output
Delay Time
Accuracy
WDT Timeout
Period
Accuracy
Inhibit
pin
R5106
0.9 to 6.0 1.5 to 5.5 ±1.0% ±16% ±33% Y 11 CD Pin and CTW Pin are combined. SOT-23-6 Consumer Consumer*1
R5107
MR Pin is included. SSOP-8G Consumer
R5108
1.5 to 6.0 SENSE Pin is included. Consumer
R5109
0.9 to 6.0 11.5 2 Clock Input Type Consumer
  • : Products partially available for applications under a high temperature environment. For details, please refer to each product page or High Temperature Products.
  • *1This is the data sheet which combined R5106N, R5107G, R5108G and R5109G.

Tap to see the table

Microcontroller Supervisory ICs

Inquiry about products

Technical Support

Inquiries (SSL Form)

Inquiry about business

Purchase, Request for Samples and Documents

Distributors

Sample Online

Online Distributors