73S1209F Data Sheet
DS_1209F_004
Pin Name
Pin (68 QFN)
Pin (44 QFN)
Type
Equivalent
Circuit*
Description
VDD 28
42
65
18
27
44
I
General positive power supply pins. All digital IO is
referred to this supply voltage. There is an on-chip
regulator that uses VDD to provide power for internal
circuits (VPD). A 0.1
μ
F capacitor is recommended at
each VDD pin.
N/C 2
4
7
8
26
27
39
46
16
17
29
No connect.
GND 9
25
44
7
15
GND
General ground supply pins for all IO and logic circuits.
RESET 66
1
Reset input, positive assertion. Resets logic and
registers to default condition.
section.
10
Rev.
1.2