Datasheet
73S1215F Data Sheet  DS_1215F_003 
10 Rev. 1.4 
Pin Name 
Pin (68 Qfn) 
Pin (44 Qfn) 
Type 
Equivalent 
Circuit* 
Description 
ANA_IN 15 10 AI Figure 38  Analog input pin. This signal goes to a programmable 
comparator and is used to sense the value of an 
external voltage. 
SEC 67 2 I Figure 37  Input pin for use in programming security fuse. It 
should be connected to ground when not in use. 
TEST 54 33 DI Figure 37  Test pin, should be connected to ground. 
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 0.1μF capacitor is recommended at 
each VDD pin. 
N/C 46 29 0   No connect. 
GND 9 
25 
44 
7 
15 
GND 
General ground supply pins for all IO and logic circuits. 
RESET 66 1 I Figure 33  Reset input, positive assertion. Resets logic and 
registers to default condition. 
* See the figures in the Equivalent Circuits section. 










