71M6515H Datasheet, PDF (7/57 Pages) Teridian Semiconductor Corporation – Energy Meter IC

71M6515H
Energy Meter IC
RECOMMENDED EXTERNAL COMPONENTS
DATA SHEET
MARCH 2008
NAME
C1
C2
XTAL
CXS
CXL
C2P5
FROM
V3P3A
V3P3D
XIN
XIN
XOUT
V2P5
TO
AGND
DGND
XOUT
AGND
AGND
DGND
FUNCTION
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
Load capacitor for crystal (depends on crystal
specs and board parasitics).
Bypass capacitor for V2P5
VALUE
≥0.1±20%
≥0.1±20%
32.768
27±10%
27±10%
≥0.1±20%
UNIT
μF
μF
kHz
pF
pF
µF
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 ₁
RESERVED 2
TMUXOUT ₃
/RTM
TX 4
SSCLK 5
CKTEST 6
V3P3D 7
SSDATA 8
SFR 9
RESERVED 10
RESERVED 11
RESERVED ¹²
RESERVED 13
PULSE3 14
PULSE4 15
BAUD_RATE ¹⁶
TERIDIAN
71M6515H-IGT
48 GNDD
47 RESETZ
46 V2P5
45 VBAT
44 RX
43 RESERVED
42 D0
41 IRQZ
40 PULSE_INIT
39 D6
38 D5
37 _D4
36 PULSER
35 _PULSEW
34 UARTCSZ
33 _D7
Pins marked RESERVED should be left unconnected during normal use.
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© 2005-2008 TERIDIAN Semiconductor Corporation
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