Atmel AVR STK100, User Manual

Page: 30 / 34

Appendix A – STK100 Schematics
STK100 Starter Kit User Guide 9-3
Figure 9-3. Power Supply Schematic
A A
B B
C C
D D
E E
4
4
3
3
2
2
1
1
>11VDC
P
o
w
er Supply
, Bro
wnout and Reset
>9V
A
C
A
STK100
A
VR
'Tin
y'
Star
ter
Kit
A
24
Saturda
y,
J
une
26,
1999
Title S
iz
e
Document Number
Re
v
Date:
Sheet
of
+5
VSEL
PRST
RESET
A
GND
AV
C
C
RESET IN
RA
W
VPP_EN
SENSE
RA
W
RA
W
SENSE
OCD
RA
W
OCD
RA
W
+5
VCC
+5
+5
+5
VCC
+5
J1 Po
w
e
r
REG1 LM7805
VIN
1
GND
3
V
OUT
2
C5 470nF
C10
330pF
SW2 RESET
1 2
4 3
LED1 Po
w
e
r
2 1
C7 100nF
D2 1N4001
2
1
D3 1N4001
2
1
D4 1N4001
2
1
D5 1N4001
2
1
D7
LL4148
2
1
D6
LL4148
2 1
Q2
BC847
b
e
c
D8
LL4148
2 1
R32 8K2
C11
10uF (T
ant)
+
P N
C6 10uF
+
P N
C8
10uF (35V)
+
P N
C9
10uF (35V)
+
P N
D9
TMMBA
T42
2 1
SW1 SW SPDT
2
1 3
CD2 100nF
CD1 100nF
R37 4K7
R24 4K7
R25 120K
R33 120K
R30 120K
R29 120K
R38 10K
R35 10K
CD3 100nF
CD4 100nF
CD5 100nF
CD6 100nF
CD7 100nF
D10 LL4148
2
1
R39 100R
Z1
BZX79C12
2 1
R27
3R9 0.5W
R28 10K
R31 1K
Q4
BC847
b
e c
Q5 BC847
b
e c
R36 10K
Q3 BC847
b
e
c
R26 100R
R23 1K
R34 10K
C4
470uF
+
1 2
U3A L272
+ -
7 8
1
2 4
U4A
LM339D
+ -
7 6
1
3 12
U4B LM339D
+ -
5 4
2
3 12
U4C
LM339D
+ -
9 8
14
3 12
U4D LM339D
+ -
11 10
13
3 12
U3B L272
+ -
6 5
3
2 4