Datasheet

71M6513/71M6513H
3-Phase Energy Meter IC
DATA SHEET
AUGUST 2011
Page: 104 of 104 © 2005-2011 Teridian Semiconductor Corporation
A Maxim Integrated Products Brand
Revision History (Continued)
Revision
Date
Description
2.4 8/17/2007
Removed all references to ROM versions. Removed reference to 3
rd
UART in
“Hardware Overview” using bit-bang technique. Added note stating that “bit-
banging” of DIO4/5 is discouraged. Added “A 1,000pF capacitor to GND should
be connected to this pin” for VBIAS in Analog Pin Descriptions. Added precaution
regarding I/O RAM locations affected by flash write under “Flash Memory”. Added
remark in “MPU/CE Communication” on inaccuracy of accumulation interval as
compared to RTC. Modified CE Interface description. Changed in Electrical Spe-
cifications: TC1 to +7.0 (VREF section), recommended capacitor values for
XIN/XOUT and crystal type. Corrected diagram for Rogowski coil (Figure 30).
Fixed Table 56.
2.5 8/12/2008
Updated package information from IEL (exposed pad LQFP) to IGT/F package
type (title page, package drawing, and ordering information). Updated Teridian
street address information. Updated explanation for
V3SQSUM register in CE
Interface Description.
Added revision history table to replace separate revision notes.
2.6 12/10
Changed information on Wh accuracy on title page. Added section on delay
compensation in CE Description. Corrected UART description in MPU section.
Added cautionary note in CE Program and Environment section stating that
operating CE code with environmental settings other than those specified in the
data sheet will lead to unpredictable results. Deleted graphs showing typical
performance over temperature. Added crystal oscillator information in Application
Information section. Added note in Applications section stating that high source
impedance sensor circuits should be avoided.
Clarified “guaranteed by design” and “tested in production” information in
Electrical Specifications section.
Changed font for all SFR and I/O RAM register variables to
Times New Roman
Italic.
Corrected various typos.
3 9/11
Added the following:
- Changed “50ppm/°C” to “40ppm/°C” (page 1).
- Explanation of scaling factors applied to PPMC and PPMC2 (page 73).
- Explanation of error bands for temperature compensation (page 82).
- Precautionary notes regarding the voltage range of the V3 pin (page 88).
- Precautionary notes for connecting a battery (page 88).