Low Power Microprocessor Supervisory Circuits


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

The SP706R/S/T and SP708R/S/T series significantly improve system reliability and operational efficiency when compared to solutions using 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 required.

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  • Precision low voltage monitor
  • 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


Design Tools


Pkg Code Details Quantities Dimensions PDF
  • JEDEC Reference: MS-012
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 128.4ºC/W (std); 96.8ºC/W (fused)
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 2500
  • Quantity per Tube: 98
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Pin 1 at sprocket hole.
  • Dimensions: mm
  • Length: 4.90
  • Width: 3.90
  • Thickness: 1.65 max
  • Lead Pitch: 1.27
  • JEDEC Reference: MS-001
  • MSL Pb-Free: n/a
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 84.6ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: n/a
  • Quantity per Tube: 50
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): n/a
  • Tape & Reel Unit Orientation: n/a
  • Dimensions: inch
  • Length: 0.365
  • Width: 0.250
  • Thickness: 0.130
  • Lead Pitch: 0.100
  • JEDEC Reference:
  • MSL Pb-Free:
  • MSL SnPb Eutectic:
  • ThetaJA:
  • Bulk Pack Style:
  • Quantity per Bulk Pack:
  • Quantity per Reel:
  • Quantity per Tube:
  • Quantity per Tray:
  • Reel Size (Dia. x Width x Pitch):
  • Tape & Reel Unit Orientation:
  • Dimensions:
  • Length:
  • Width:
  • Thickness:
  • Lead Pitch:

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
SP706SCN-L NSOIC8 0 70 OBS Suggested:
SP706SCN-L/TR NSOIC8 0 70 Active
SP706SCU-L MSOP8 0 70 OBS Suggested:
SP706SCU-L/TR MSOP8 0 70 Active
SP706SEN NSOIC8 -40 85 OBS
SP706SEN-L NSOIC8 -40 85 Active
SP706SEN-L/TR NSOIC8 -40 85 Active
SP706SEP-L PDIP8 -40 85 OBS
SP706SEU/TR MSOP8 -40 85 OBS
SP706SEU-L MSOP8 -40 85 Active
SP706SEU-L/TR MSOP8 -40 85 Active
Show obsolete parts
Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
Distribution Date Description File
02/15/2017 Qualification of alternate assembly subcon, ANST. PCN 16-1149-02 ANST-1033.pdf
07/26/2016 Product discontinuation notification. Discontinued. PDN 16-0626-01-1033.pdf
04/13/2016 Qualification of alternate assembly subcon, JCET. PCN 16-0207-02 JCET-1033.pdf
05/21/2015 Datasheet change. Supply Current specification updated to match industry standard with 3.3V and 5.5V specifications. PFI specification updated. Customers should review PFI resistor divider values. Discontinued products removed from datasheet. PCN_15-0415-01-1033.pdf
07/02/2013 Qualification of an alternate qualified assembly supplier, ASE Chung-Li (Taiwan) for the 8L NSOIC package using copper wire bonding. Material change and alternate assembly supplier qualified. PCN_12-1107-01-1033.pdf
08/29/2011 Material change: Mold compound and die attach material are changed and the listed parts will be fully Green (halogen-free). Migrating to green environment and material standardization. PCN_11-0810-01-1033.pdf
03/23/2010 Alternate qualified assembly supplier Capacity enhancement PCN_10-0311-01-1033.pdf
12/07/2009 Enhancement of NSOIC 8, NSOIC14 and NSOIC16 packages to Green (halogen-free) via Mold Compound & Die Attach Material. Enhance packages to be Green (halogen-free). PCN_09-0911-01-1033.pdf
09/17/2009 Datasheet change. Test conditions for RESET Output Voltage @ max voltage =0.30V is changed From: Vcc =1.1V, Isink =50ua To: Vcc =1.2V, Isink = 100ua PCN_09-0909-01-1033.pdf
09/17/2009 Test conditions for RESET Output Voltage @ max voltage =0.30V is changed. Test standardization. PCN_090909-01-1033.pdf
02/28/2007 Product Obsolescence Letter and Discontinuation Notification. Discontinued. POL_022807-1033.pdf