NE1619DS: HECETA4 Temperature and voltage monitor

The NE1619 is designed for monitoring the temperatures and supply voltages of microprocessor-based systems by measuring those parameters and comparing the readings with programmable limits. The device provides five possible analog inputs, a remote temperature sensor input and on-board local temperature sensor. The device also monitors its own power supply and provides digital inputs for the Pentium/PRO power supply ID code.

The device communicates with the system controller via an SMBus (System Management bus) by which it can be programmed for operation and data collection. Readings come from conversions of the on-board A-to-D converter which cycles through all measurements in sequence in approximately one second when the conversion is started. The device includes a number of registers to store data of the device configuration, status, readings and limits. Except for the temperature-related data which are in 8-bit digital 2's complement format, all the data are in 8-bit digital straight format.

NE1619DS: Product Block Diagram
sot519-1_3d
Data Sheets (1)
Name/DescriptionModified Date
HECETA4 Temperature and voltage monitor (REV 4.0) PDF (121.0 kB) NE161905 Oct 2004
Application Notes (3)
Name/DescriptionModified Date
Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN1044120 Jun 2007
Digital temperature sensor accuracy explained (REV 1.0) PDF (111.0 kB) AN1034909 Aug 2006
I2C manual (REV 1.0) PDF (4.2 MB) AN1021627 Mar 2003
Users Guides (3)
Name/DescriptionModified Date
I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM1020428 Apr 2014
I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA03 Apr 2013
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM1020613 Jun 2006
Brochures (3)
Name/DescriptionModified Date
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 7501754001 Aug 2014
Precise thermal monitoring with small, accurate temp sensors; NXP® temperature sensors NE1617A & NE1619 (REV 1.0) PDF (253.0 kB) 7501653301 Aug 2008
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 7501654301 Jun 2008
Selector Guides (1)
Name/DescriptionModified Date
I2C-bus temperature sensors; Small, accurate, low-cost sensors for advanced temperature regulation (REV 1.0) PDF (675.0 kB) 7501569301 Nov 2006
Package Information (1)
Name/DescriptionModified Date
plastic shrink small outline package; 16 leads; body width 3.9 mm; lead pitch 0.635 mm (REV 1.0) PDF (278.0 kB) SOT519-108 Feb 2016
Packing (1)
Name/DescriptionModified Date
SSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code... (REV 1.0) PDF (194.0 kB) SOT519-1_11820 Oct 2015
Supporting Information (2)
Name/DescriptionModified Date
Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE08 Oct 2009
Ordering Information
ProductStatusPackage versionRemarksStandby current (uA)Operating Temperature (Cel)I2C-bus controlledPart typeAccuracy on-chip (±°C)Operating voltage (VDC)Assignable addressesSMBus clock (kHz)Accuracy remote (±°C)
NE1619DSEnd of LifeSOT519-11000~1202.8~5.52@+25?3@0~1202.8~5.524003@25?5@0~120