Low Power Microprocessor Supervisory Circuits


The SP705-708/813L series is a family of microprocessor (µA) supervisory circuits that integrate myriad components involved in discrete solutions which monitor power-supply and battery in mP and digital systems.

The SP705-708/813L series will significantly improve system reliability and operational efficiency when compared to solutions obtained with discrete components. The features of the SP705-708/813L series include a watchdog timer, a µP reset, a Power Fail Comparator, and a manual-reset input.

The SP705-708/813L series is ideal for applications in automotive systems, computers, controllers, and intelligent instruments. The SP705-708/813L series is an ideal solution for systems in which critical monitoring of the power supply to the µP and related digital components is demanded.

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  • Precision voltage monitor:
  • RESET pulse width - 200ms
  • Independent watchdog timer - 1.6s
  • Timeout (SP705/706/813L/813M)
  • 60mA maximum supply current
  • Debounced TTL/CMOS manual reset input


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: MO-220
  • MSL Pb-Free: L1 @ 260°C
  • MSL SnPb Eutectic:
  • ThetaJA: 163
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack:
  • Quantity per Reel: 2500
  • Quantity per Tube: 50
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330x12x8
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 3
  • Width: 3
  • Thickness: 0.85
  • Lead Pitch: 0.65

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
SP705CN-L NSOIC8 0 70 EOL Suggested:
SP705CN-L/TR NSOIC8 0 70 Active
SP705CP PDIP8 0 70 OBS
SP705CP-L PDIP8 0 70 OBS
SP705CU MSOP8 0 70 OBS
SP705CU-L NSOIC8 0 70 OBS Suggested:
SP705CU-L/TR NSOIC8 0 70 EOL Suggested:
SP705EN NSOIC8 -40 85 OBS
SP705EN/TR NSOIC8 -40 85 OBS
SP705EN-L NSOIC8 -40 85 EOL Suggested:
SP705EN-L/TR NSOIC8 -40 85 Active
SP705EP PDIP8 -40 85 OBS
SP705EP-L PDIP8 -40 85 OBS
SP705EU NSOIC8 -40 85 OBS
SP705EU/TR MSOP8 -40 85 OBS
SP705EU-L NSOIC8 -40 85 OBS Suggested:
SP705EU-L/TR NSOIC8 -40 85 OBS Suggested:
SP705XN NSOIC8 -40 85 OBS
SP705XN-1 NSOIC8 -40 85 OBS
SP705XN-2 NSOIC8 -40 85 OBS
SP705XP PDIP8 -40 85 OBS
SP705XP-1 PDIP8 -40 85 OBS
SP705XP-2 PDIP8 -40 85 OBS
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
07/11/2017 Product Discontinuation Notification PDN_17-0623-01-1033.pdf
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
03/14/2016 Foundry line qualification. Addition of qualified 6 inch wafer processing line in Silan. PCN 16-0207-04 Silan 6 inch-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
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
03/04/2009 Notice of Obsolescence Discontinued by Exar Corporation due to low market demand PDN_090304-01-1033.pdf
02/28/2007 Product Obsolescence Letter and Discontinuation Notification. Discontinued. POL_022807-1033.pdf
10/16/2006 Adding “Note 1: WDI minimum rise/fall time is 1 microsecond.” to “WDI Pulse Width” specification The Schmitt trigger input on the WDI pin may not recognize signals with rise or fall times shorter than 1 microsecond. PCN 06-1016-02 _2_(1)-1033.pdf
02/02/2006 Announcing transfer of certain Power Management and Interface Products from Hillview fabrication and facility to wafer foundary Silan. See attached Product List Power Management and Interface products as listed are being transfer to external wafer foundry, due to cessation of operations of the sipex Hillview Fabrication manufacturing site PCN-06-0130-37-1033.pdf