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SP706S Datasheet

+3.0V/+3.3V Low Power Microprocessor Supervisory Circuits

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® SP706P/R/S/T, SP708R/S/T
+3.0V/+3.3V Low Power Microprocessor
Supervisory Circuits
s Precision Low Voltage Monitor:
SP706P/R and SP708R at +2.63V
SP706S and SP708S at +2.93V
SP706T and SP708T at +3.08V
s RESET Pulse Width - 200ms
s Independent Watchdog Timer - 1.6 sec
Timeout (SP706P/S/R/T)
s 40µA Maximum Supply Current
s Debounced TTL/CMOS Manual-Reset Input
s RESET Asserted Down to VCC = 1V
s RESET Output:
SP706P Active-High
SP706R/S/T Active-Low
SP708R/S/T Both Active High + Active Low
s WDI Can Be Left Floating, Disabling the
Watchdog Function
DESCRIPTION
s Built-In Vcc Glitch Immunity
s Available in 8-pin PDIP, NSOIC, and
µSOIC packages
s Voltage Monitor for Power Failure or Low
Battery Warning
s Pin Compatible Enhancement to Industry
Standards 706P/R/S/T and 708R/S/T
The SP706P/S/R/T, 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 SP706P/S/R/T, SP708R/S/T series will significantly
improve system reliability and operational efficiency when compared to results obtained with
discrete components. The features of the SP706P/S/R/T, SP708R/S/T series include a
watchdog timer, a µP reset, a Power Fail Comparator, and a manual-reset input. The SP706P/
S/R/T, SP708R/S/T series is ideal for +3.0V or +3.3V applications in automotive systems,
computers, controllers, and intelligent instruments. The SP706P/S/R/T, 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.
Part Number RESET Active RESET Threshold Manual Reset PFI Accuracy Watchdog Input
SP706P
HIGH
2.63V
YES
4%
YES
SP706R
LOW
2.63V
YES
4%
YES
SP706S
LOW
2.93V
YES
4%
YES
SP706T
LOW
3.08V
YES
4%
YES
SP708R
LOW/HIGH
2.63V
YES
4%
NO
SP708S
LOW/HIGH
2.93V
YES
4%
NO
SP708T
LOW/HIGH
3.08V
YES
4%
NO
Rev. 10-17-00
SP706 +3.0/ +3.3 Low Power Microprocessor Circuits
1
© Copyright 2000 Sipex Corporation




Sipex

SP706S Datasheet Preview

SP706S Datasheet

+3.0V/+3.3V Low Power Microprocessor Supervisory Circuits

No Preview Available !

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.
Terminal Voltage (with respect to GND):
VCC........................................................-0.3V to +6.0V
All Other Inputs (Note 1)..............-0.3V to (VCC +3.0V)
Input Current:
VCC.....................................................................20mA
GND...................................................................20mA
Output Current (all outputs)...............................20mA
ESD Rating...........................................................2kV
Continuous Power Dissipation
Plastic DIP
(derate 9.09mW/OC above +70OC)..................727mW
SO
(derate 5.88mW/OC above +70OC)..................471mW
Mini SO
(derate 4.10mW/OC above +70OC)..................330mW
Storage Temperature Range.............-65˚C to +160˚C
Lead Temperature (solding 10 sec)................+300˚C
SPECIFICATIONS
Vcc = 2.7V to 5.5V for SP70_P/R, VCC = 3.0 to 5.5V for SP70_S, VCC = 3.15V to 5.5V for SP70_T, TA= TMIN to TMAX to TMAX, unless otherwise noted,
typical at 25°C.
PARAMETER
MIN. TYP. MAX. UNITS CONDITIONS
Operating Voltage Range, V
CC
1.0
5.5 V
Supply Current, ISUPPLY
Reset Threshold
Reset Threshold Hysteresis
Reset Pulse Width, tRS
RESET Output Voltage
VOH
VOL
VOH
VOL
RESET Output Voltage
VOH
VOL
VOH
VOL
Watchdog Timeout Period, tWD
WDI Pulse Width, tWP
WDI Input Threshold,
VIL
VIH
VIL
VIH
WDI Input Current
25
2.55 2.63
2.85 2.93
3.00 3.08
20
140 200
0.8xVCC
VCC-1.5
VCC-0.6
VCC-1.5
1.00 1.60
50
0.7xVCC
3.5
-1
0.02
40
2.70
3.00
3.15
280
0.3
0.4
0.3
0.4
2.25
0.6
0.8
1
µA MR=VCC or Floating, WDI Floating
SP70_P/R
V SP70_S
SP70_T
mV Note 2
ms Note 2
VRST(MAX)<VCC<3.6V, ISOURCE = 500µA
V VRST(MAX)<VCC<3.6V, ISINK =1.2mA
4.5V<VCC<5.5V, ISOURCE = 800µA
4.5V<VCC<5.5V, ISINK = 3.2mA
VRST(MAX)<VCC<3.6V, ISOURCE = 215µA
V VRST(MAX)<VCC<3.6V, ISOURCE =1.2mA
4.5V<VCC<5.5V, ISOURCE = 800µA
4.5V<VCC<5.5V, ISOURCE = 3.2mA
s VCC<3.6V
ns VIL = 0.4V, VIH = 0.8xVCC
VRST (MAX) <VCC <3.6V
V VRST (MAX) <VCC <3.6V
VCC = 5.0V
VCC = 5.0V
µA WDI = 0 or VCC
Rev. 10-17-00
SP706 +3.0/ +3.3 Low Power Microprocessor Circuits
2
© Copyright 2000 Sipex Corporation


Part Number SP706S
Description +3.0V/+3.3V Low Power Microprocessor Supervisory Circuits
Maker Sipex
Total Page 18 Pages
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