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Voltage Detection and System Reset IC  
Part No. Features Vcc(V) Icc(uA) Detect Volt. Range (V) Accurate Package
81XX Power Reset IC

*High precision voltage detection. (VSS 3% max)
*low current consumption.(ICCH=5μA max. ICCL=5μA max.)
*Low operating threshold voltage (0.65V typ.)
*Hysteresis voltage is provided as a detect voltage.(50mV typ.)
*Large output current at the time ON (15mA typ.)
*The detect voltage can be selected at your discretion at 0.1V step within the range of 1.9V to 4.6V by the following stipulation method.
-0.3V~+10.0V 3.0uA (Typ)/ 5.0uA (Max) 1.8V~4.6V & 5.0V ±3.0% SOT-23 SOT-25 SOT-23-3
SOT-89 TO-92
81CXX CMOS Output Voltage Detectors with Built-in Delay.
Built-in Delay Time:1ms ~ 50ms &50 ~ 200 ms& 200ms ~ 400ms

* Highly Accurate: Detect voltage ± 2%
* Built-In Delay time : 1ms ~ 50ms
50ms ~ 200ms
200ms ~ 400ms
* Detect Voltage Temperature / Characteristics: TYP± 100ppm/°C
* Wide Operating Voltage Range : 0.7V ~ 10.0V
* Low Current Consumption : TYP 1.0μA (VIN=2.0V)
0.7V~+10.0V 2.0uA (Typ)/ 4.2uA (Max) 1.0V ~ 5.0V ±2.0% SOT-23 SOT-89 SOT-323
TO-92 SOT-223 SOT-23-3
81NXX Nch Open Drain Voltage Detectors with Built-in Delay.
Built-in Delay Time:1ms ~ 50ms &50 ~ 200 ms& 200ms ~ 400ms

* Highly Accurate: Detect voltage ± 2%
* Built-In Delay time : 1ms ~ 50ms
50ms ~ 200ms
200ms ~ 400ms
* Detect Voltage Temperature / Characteristics: TYP± 100ppm/°C
* Wide Operating Voltage Range : 0.7V ~ 10.0V
* Low Current Consumption : TYP 1.0μA (VIN=2.0V)
0.7V~+10.0V 2.0uA (Typ)/ 4.2uA (Max) 1.0V ~ 5.0V ±2.0% SOT-23 SOT-89 SOT-323
TO-92 SOT-223 SOT-23-3
82XX Voltage Detection and System Reset IC with Manual Reset Function,
Built-in Delay Time:30~75ms;60~150ms;120~300ms;240ms ~600ms;480~1200ms

* Internal Fixed Delay Time Setting by Counter Timer
* Grate Delay Time Temperature Characteristics:±800ppm/°C
* Operating Limit Voltage as 0.65V(Typ.)
* Hysteresis Voltage Provided: 50mV(Typ.)
* Circuit Current While On ICCL=300μA(Typ.)
* Circuit Current While Off ICCH=200μA(Typ.)
-0.3V~+10.0V 600uA (Max) 1.8V~4.6V & 5.0V - SOT-25
82CXX CMOS Output Voltage Detectors

*High-accuracy detection voltage : ±2%
*Detect voltage range : 1.3V to 6.2V in 0.1V increments
*Detect voltage temperature characteristics: TYP. ±100ppm/°С.
*Wide operating voltage range : 0.7V to 10.0V
*Low current consumption : TYP 0.7μA(at VIN=1.5V)
12.0V 1.1uA (Typ)/ 3.6uA (Max) 0.9V ~ 6.2V ±2.0% SOT-25 SOT-23 SOT-23-3
SOT-89 TO-92
82NXX N-ch Open Drain Output Voltage Detectors

* High-accuracy detection voltage : ±2%
* Detect voltage range : 1.3V to 6.0V in 0.1V increments
* Detect voltage temperature characteristics: TYP.±100ppm/°C.
* Wide operating voltage range : 0.7V to 10.0V
* Low current consumption : TYP 0.7μA (at VIN=1.5V)
12.0V 1.3uA (Typ)/ 4.0uA (Max) 0.9V ~ 6.0V ±2.0% SOT-25 SOT-23 SOT-23-3
SOT-89 TO-92
83CXXX CMOS Output Voltage Detectors with Manual Reset Function. 
Built-in Delay Time: 140~520ms

* +3V, +3.3V, and +5V power-supply voltages
* Full temperature rated
* Supply current: 5μA
* Available in configuration: push-pull RESET output
* 140ms minimum power-on reset pulse width
* Guaranteed reset to VCC = +1V
* Power supply transient Immunity
* Eliminating external components
* Manual reset input
-0.3V~+6.0V 5.0uA (Typ)/ 8.0uA (Max) 2.93V ~ 3.08V ±2.5% SOT-143
88CXX CMOS Output High-Precision Voltage Detectors with Delay Controlled by External Capacitor

* Highly accurate : 2.0%
* Hysteresis characteristics: 5% typ.
* Ultra-low current consumption: 1.0μA typ. (VDD=2.0V)
* Detection voltage ranges: 1.5~6V and step by 0.1V.
* Low operating voltage based on detection voltage
* Delay time setting by an additional external capacitor
0.95V~+10.0V 1.5uA (Typ)/ 5.0uA (Max) 1.6V,1.7V,1.8V,1.9V,2.0V,2.1V,2.2V,2.3V,2.4V,2.5V,2.6V,2.7V,2.8V,2.9V,3.0V,3.1V,3.2V,3.3V,3.4V,3.5V,3.6V,3.7V,3.8V,3.9V,4.0V,4.1V,4.2V,4.3V,4.4V,4.5V,4.6V,4.7V,4.8V,4.9V,5.0V,5.1V,5.2V,5.3V,6.0V ±2.0% SOT-23-5 SOT-25 
88NXX Nch Open Drain  High-Precision Voltage Detectors with Delay Controlled by External Capacitor

* Extremely Low Current Dissipation :1.2μA Typ. (Detection Voltage 1.5 V @ VDD=3.5 V)
* ±2.0 % Accuracy Detection Voltage
* Hysteresis Characteristics: 5% TYP
* Detection Voltage varies from 1.5V to 6.0V with 0.1V step
* Output Forms: N-ch open-drain output (when it is in Active-Low)
0.95V~+10.0V 5.0uA (Max) 2.0V ~ 3.8V ±2.0% SOT-25
SOT-23-5
SOT-143
89CXX/89NXX * Adjustable delay Time
* N-ch open drain and CMOS output selectable
* Ultra-low current consumption
* Wide operating temperature range
-0.3 ~ +7 0.88-2.28uA (Max) 0.9V-4.8V - SOT-23-5 SOT-343 SOT-25
U7704 Nch Open Drain Output Voltage Detection, Low Quiescent Current, Adjustable delay time with external capacitor, Manual Reset 0.95V~+10.0V 0.9uA (Typ)/2.0uA (Max) 1.0V ~ 6.0V ±1.0% SOT-25 SOT-23-5 SOT-353
U7705 CMOS Output Voltage Detection, Low Quiescent Current,
Adjustable delay time with external capacitor, Manual Reset
0.95V~+10.0V 0.9uA (Typ)/2.0uA (Max) 1.0V ~ 6.0V ±1.0% SOT-25 SOT-23-5 SOT-353
UIC809 MICROPROCESSOR RESET CIRCUITS

* Voltage monitor for 3V or 3.3V or 5V power supplies
* Valid RESET remains with VCC as low as 1V
* Typical supply current: 5μA
* Fixed 140ms minimum reset pulse width
* With Manual reset input
-0.3V~+6.0V 10.0uA (Max) - - SOT-23-3
UIC811 Microprocessor Reset Circuits Include Manual Reset.
Built-in Delay Time: 140~560ms; Reset Out With Active Low

* Voltage monitor for 3V or 3.3V or 5V power supplies
* Valid RESET remains with VCC as low as 1V
* Typical supply current: 5μA
* Fixed 140ms minimum reset pulse width
* With Manual reset input
1V~6V 10uA (Max) 2.63V ~ 5.0V ±2.5% SOT-23 SOT-23-3 SOT-143
SOT-343
UIC812 4-PIN μP VOLTAGE MONITORS WITH MANUAL RESET INPUT

* Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages
* Available in Three Output Configurations Open-Drain RESET Output
* Typical supply current: 5μA
* 230 mS Min Power-On Reset Pulse Width
* Guaranteed Reset Valid to VCC=+1V
* Power Supply Transient Immunity
* Manual Reset Input
* 2% Threshold Accuracy
-0.3V~+6.0V 20.0uA (Max) 2.63V ~ 4.63V ±2.0% SOT-23-5 SOT-143
UIC813 3-PIN MICROPROCESSOR RESET CIRCUITS

* Voltage monitor for 3V or 3.3V or 5V power supplies
* Valid RESET remains with VCC as low as 1V
* Typical supply current: 10μA
* Fixed 140ms minimum reset pulse width
* Push-Pull Reset Active High Optput.
-0.3V~+6.0V 30.0uA (Max) 2.63V ~ 4.63V ±2.0% SOT-23 SOT-143
UTC812 Microprocessor Reset Circuits Include Manual Reset.
Built-in Delay Time: 140~560ms; Reset Out With Active Low

* Supply Current: 10μA
* Precision Monitoring of +5V, +3.3V, +3.0V Powered Circuits
* With the Two Configurations In The Following: Push-Pull RESET Output
* Power-On Reset Pulse Width: 140ms (MIN.)
* Outputs Guaranteed To Be In The Correct Logic State for VCC Down to 1V.
* Required No External Components
* Power Supply Transient Immunity
-0.3V~+6.0V 10.0uA (Typ)/ 23uA (Max) 2.63V ~ 5.0V ±2.5% SOT-23-3
UIC817 MICROPOWER μP WATCH DOG TIMER
* Precision Supply-Voltage Monitor
* Operating Voltage Range: 1.0V~6.0V
* Output Configuration: CMOS
* Watchdog Function: Watchdog input WD
* Wide Temperature Range: -40°C to +85°C
1~5.5V 50uA (Max) 2.63V ~ 4.65V ±2.0% SOT-25
UWD706 MICROPROCESSOR UP WATCH DOG TIMER
* Precision supply- Voltage Monitor
* Valid RESETremains with VCC as low as 1V
* 200ms Reset Pulse Width
* Independent Watchdog Timer (1.6sec) Timeout
* Voltage Monitor for Power-Fail or Low-Battery Warning
* With Manual reset input
1.0V~5.5V 50uA (Typ)/ 150uA (Max) A2.63V
B
2.93V
C
3.08V
D
4.00V
E
4.40V
F
4.65V
 - SOP-8
UWD817 MICROPOWER μP WATCH DOG
TIMER
* Precision Supply-Voltage Monitor
* Operating Voltage Range: 1.0V~6.0V
* Output Configuration: CMOS
* Watchdog Function: Watchdog input WD
* Wide Temperature Range: -40°C to +85°C
1.0V~5.5V 50uA (Max) A2.63V
B
2.93V
C
3.08V
D
4.00V
E
4.40V
F
4.65V
±2.0% SOT-25
UWD708*            
86N1C * Few external parts
* Low threshold operating voltage (Supply voltage to keep low-state
at low supply voltage): 0.6V (Typ) at RL=22kΩ
* Large delay time with a capacitor of small capacitance
* Wide application range
* Wide supply voltage range: 2V~17V
2~17V 270uA (Typ)/ 540uA (Max) 1.25V (Typ) ±4.0% SOP-8
84NXX* LOW QUIESCENT CURRENT PROGRAMMABLE-DELAY SUPERVISORY CIRCUIT

* Standard Voltage Rails From 0.9V to 5V and Adjustable
Voltage From 0.4V are Available
* Low Quiescent Current: 1.6uA (typ.)
* Delay Time: 2.1ms to 10s
* High Threshold Accuracy: ±1% (typ.)
* Manual Reset (MR) Input
* Open-Drain RESET Output
* Immune to Short Negative SENSE voltage
* Guaranteed Reset Valid to VCC: 0.8V
1.8V~6V 12uA (Max) ADJ ±2.0% SOT-23-6
Black: Under  Development