71M6515H
Energy Meter IC
DATA SHEET
MARCH 2008
RECOMMENDED EXTERNAL COMPONENTS
FUNCTION
NAME
C1
C2
FROM
V3P3A
V3P3D
TO
VALUE
≥0.1±20%
≥0.1±20%
UNIT
μF
μF
AGND
DGND
Bypass capacitor for 3.3V supply
Bypass capacitor for 3.3V supply
32.768kHz crystal – electrically similar to ECS
.327-12.5-17X or Vishay XT26T, load capaci-
tance 12.5pF
XTAL
XIN
XOUT
32.768
kHz
CXS
CXL
C2P5
XIN
XOUT
V2P5
AGND
AGND
DGND
pF
pF
µF
27±10%
27±10%
≥0.1±20%
Load capacitor for crystal (depends on crystal
specs and board parasitics).
Bypass capacitor for V2P5
FOOTNOTES:
1 This spec is guaranteed, has been verified in production samples, but is not measured in production.
2 This spec is guaranteed, has been verified in production samples, but is measured in production only at DC.
3 This spec is measured in production at the limits of the specified operating temperature.
4 This spec defines a nominal relationship rather than a measured parameter. Correct circuit operation is verified with other specs that use
this nominal relationship as a reference
PIN CONFIGURATION AND PIN FUNCTION
GNDD
GNDD
RESETZ
V2P5
VBAT
RX
48
47
1
2
RESERVED
TMUXOUT
/RTM
TX
46
45
44
43
42
41
40
39
38
37
36
35
34
33
3
4
5
SSCLK
CKTEST
V3P3D
6
RESERVED
D0
7
TERIDIAN
71M6515H-IGT
8
SSDATA
SFR
IRQZ
9
PULSE_INIT
D6
10
11
12
13
14
RESERVED
RESERVED
D5
RESERVED
RESERVED
PULSE3
D4
PULSER
PULSEW
15
16
PULSE4
UARTCSZ
BAUD_RATE
D7
Pins marked RESERVED should be left unconnected during normal use.
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