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SP708SEN-L/TR Integrated Circuit Chip For Industrial / Medical Instruments

SP708SEN-L/TR Integrated Circuit Chip For Industrial / Medical Instruments

Model Number : SP708SEN-L/TR
Type : Simple Reset/Power-On Reset
Number of Voltages Monitored : 1
Output : -
Reset : Active High/Active Low
Reset Timeout : 140 ms Minimum
Voltage - Threshold : 2.93V
Operating Temperature : -40°C ~ 85°C (TA)
Mounting Type : Surface Mount
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SP708SEN-L/TR Integrated Circuit IC Chip IC MPU SUPERVISORY CIRCUIT 8SOIC


TypeSimple Reset/Power-On Reset
Number of Voltages Monitored1
Output-
ResetActive High/Active Low
Reset Timeout140 ms Minimum
Voltage - Threshold2.93V
Operating Temperature-40°C ~ 85°C (TA)
Mounting TypeSurface Mount
Package / Case8-SOIC (0.154", 3.90mm Width)
Supplier Device Package8-SOIC

GENERAL DESCRIPTION

The SP706R/S/T and SP708R/S/T series is a family of microprocessor (µP) supervisory circuits that integrate myriad components involved in discrete solutions which monitor power-supply and battery in µP and digital systems.

The SP706R/S/T and SP708R/S/T series will significantly improve system reliability and operational efficiency when compared to solutions obtained with discrete components. The features of the SP706R/S/T and SP708R/S/T series include a watchdog timer, a

µP reset, a Power Fail Comparator, and a manual-reset input.

The SP706R/S/T and SP708R/S/T series is ideal for 3.0V or 3.3V applications in automotive systems, computers, controllers, and intelligent instruments. The SP706R/S/T and SP708R/S/T series is an ideal solution for systems in which critical monitoring of the power supply to the µP and related digital components is demanded.

APPLICATIONS

· Processors & DSPs Based Systems

· Industrial & Medical Instruments


FEATURES

· Precision Low Voltage Monitor

- SP706R/SP708R: +2.63V

- SP706S/SP708S: +2.93V

- SP706T/SP708T: +3.08V

· 200ms RESET Pulse Width

- SP706R/S/T: Active Low

- SP708R/S/T: Active High and Active Low

· Independent Watchdog Timer

- 1.6s Timeout (SP706R/S/T)

- Enable/Disable Function

· 40µA Maximum Supply Current

· Debounced TTL/CMOS Manual Reset Input

· RESET Asserted Down to VCC=1V

· VCC Glitch Immunity

· Voltage Monitor for Power Failure or Low Battery Warning

· 8-Pin NSOIC and MSOP Packages

Pin Compatible with Industry Standards 706R/S/T and 708R/S/T


Part NumberRESET ThresholdRESET ActiveManual RESETWatchdogPFI Accuracy
SP706R2.63VLowYesYes4%
SP706S2.93VLowYesYes4%
SP706T3.08VLowYesYes4%
SP708R2.63VLow and HighYesNo4%
SP708S2.93VLow and HighYesNo4%
SP708T3.08VLow and HighYesNo4%

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

VCC V to 6.0V

All Other Inputs (Note 1) 0.3V to (VCC+0.3V)

Input Current

VCC 20mA

GND 20mA

Output Current (All outputs) 20mA


ESD Rating (HBM - Human Body Model) kV

Continuous Power Dissipation

SO (derate 5.88mW/°C above +70°C) 471mW

Mini SO (derate 4.10mW/°C above +70°C) 330mW

Storage Temperature ..-65°C to 160°C

Lead Temperature (Soldering, 10 sec) 300°C


ELECTRICAL SPECIFICATIONS

Unless otherwise indicated, VCC = 2.7V to 5.5V (SP70xR), VCC = 3.15V to 5.5V (SP70xS), VCC = 3.0V to 5.5V (SP70xT), TA= TMIN to TMAX, typical at 25°C.


ParameterMin.Typ.Max.UnitsConditions
Operating Voltage Range VCC1.05.5V
Supply Current ISUPPLY2540µAMR=VCC or floating, WDI floating

Reset Threshold

2.552.632.70

V

SP706R. SP708R
2.852.933.00SP706S. SP708S
3.003.083.15SP706T. SP708T
Reset Threshold Hysteresis20mVNote 2
Reset Pulse Width tRS140200280msNote 2

RESET Output Voltage

VOH VOL VOH

VOL


V

0.8xVCCVRST(MAX)<VCC<3.6V, ISOURCE=500µA
0.3VRST(MAX)<VCC<3.6V, ISINK=1.2mA
VCC-1.54.5V<VCC<5.5V, ISOURCE=800µA
0.44.5V<VCC<5.5V, ISINK=3.2mA

RESET Output Voltage

VOH VOL VOH VOL


V

VCC-0.6VRST(MAX)<VCC<3.6V, ISOURCE=215µA
0.3VRST(MAX)<VCC<3.6V, ISOURCE=1.2mA
VCC-1.54.5V<VCC<5.5V, ISOURCE=800µA
0.44.5V<VCC<5.5V, ISOURCE=3.2mA
Watchdog Timeout Period tWD1.001.602.25sVCC<3.6V
WDI Pulse Width tWP (note 1)50nsVIL=0.4V, VIH=0.8xVCC

WDI Input Threshold

VIL VIH VIL VIH


V

0.6VRST(MAX)<VCC<3.6V
0.7xVCCVRST(MAX)<VCC<3.6V
0.8VCC=5V
3.5VCC=5V
WDI Input Current-10.021µAWDI=0V or WDI=VCC

WDO Output Voltage

VIL VIH VIL

VIH


V

0.8xVCCVRST(MAX)<VCC<3.6V, ISOURCE=500µA
0.3VRST(MAX)<VCC<3.6V, ISINK=1.2mA
VCC-1.54.5V<VCC<5.5V, ISOURCE=800µA
0.44.5V<VCC<5.5V, ISINK=3.2mA
MR Pull-up Current2570250µAMR = 0V, VRST(MAX)<VCC<3.6V
100250600MR = 0V, 4.5V<VCC<5.5V

ParameterMin.Typ.Max.UnitsConditions
MR Pulse Width tMR500nsVRST(MAX)<VCC<3.6V
1504.5V<VCC<5.5V

MR Input Threshold

VIL VIH VIL

VIH


V

0.6VRST(MAX)<VCC<3.6V
0.7xVCCVRST(MAX)<VCC<3.6V
0.84.5V<VCC<5.5V
2.04.5V<VCC<5.5V
MR to Reset Out Delay tMD750nsVRST(MAX)<VCC<3.6V
2504.5V<VCC<5.5V
PFI Input Threshold1.201.251.30VVCC=3.0V - SP70xR, PFI falling VCC=3.3V - SP70xS/T, PFI falling
PFI Input Current-25.000.0125.00nA

PFO Output Voltage

VIL VIH VIL VIH


V

0.8xVCCVRST(MAX)<VCC<3.6V, ISOURCE=500µA
0.3VRST(MAX)<VCC<3.6V, ISINK=1.2mA
VCC-1.54.5V<VCC<5.5V, ISOURCE=800µA
0.44.5V<VCC<5.5V, ISINK=3.2mA

Note 1:WDI minimum rise /fall time is 1µs.

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