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HD4046212RFS Datasheet(PDF) 10 Page - Renesas Technology Corp

Part # HD4046212RFS
Description  AS Microcomputer Incorporating a DTMF Generator Circuit
PDF  157 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD4046212RFS Datasheet(HTML) 10 Page - Renesas Technology Corp

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HD404629R Series
8
Pin Number
Item
Symbol
FP-100B
TFP-100B
FP-100A
I/O
Function
A/D
converter
AV
CC
1
3
Power pin for A/D converter: Connect it to the same
potential as V
CC, as physically close to the VCC pin as
possible
AV
SS
6
8
Ground for AV
CC: Connect it to the same potential
as GND, as physically close to the GND pin as
possible
AN
0–AN3
2–5
4–7
I
Analog input pins for A/D converter
DTMF
TONER
99
1
O
Output pin for DTMF row signals
TONEC
98
100
O
Output pin for DTMF column signals
VT
ref
100
2
Reference voltage pin for DTMF signals.
Voltage conditions are: V
CC ≥ VTref ≥ GND



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