Datasheet

Data Sheet ADuC845/ADuC847/ADuC848
Rev. C | Page 93 of 108
DV
DD
0.1µF
RESET ACTIVE HIGH.
(NORMALLY OPEN)
35
34
43
44
1kΩ
DV
DD
1kΩ
2-PIN HEADER FOR
EMULATION ACCESS
(NORMALLY OPEN)
DOWNLOAD/DEBUG
ENABLE JUMPER
(NORMALLY OPEN)
RS232
CONNECTION
DV
DD
DV
DD
AV
DD
AV
DD
AV
DD
AGND
AGND
REFIN–
REFIN+
P1.0/AIN1
P1.1/AIN2
200µA/400µA
EXCITATION
CURRENT
RTD
R
R
PSEN
EA
DGND
DV
DD
XTAL2
XTAL1
RESET RxD TxD DV
DD
DGND
04741-067
11
4
5
6
7
8
56
1
P1.2/AIN3/REFIN2+
AIN9
AIN10
P1.3/AIN4/REFIN2–
R
REF
5.6kΩ
2
15
16
3
17 18 19
22 36 51
37 38 5023
0.1µF
P1.6/I
EXC
1/AIN7
ADuC845/ADuC847/ADuC848
LFCSP PACKAGE
Figure 71. Dual Reference Typical Connectivity