Protel Schematic

1
2
3
4
5
6
7
8
VCC
R7
C3
100n
10k
Switch
R1
U2
PIC16F876
10k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C2
RA1
D
22p
Y1
C1
4MHz
OSC1
OSC2
RC0
Out555
RC2
RC3
22p
U1A
PWM
U1B
2
1
4
74HC04
3
74HC04
MCLR
RA0
RA1
RA2
RA3
RA4
RA5
Vss
OSC1
OSC2
RC0
RC1
RC2
RC3
J1
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
Vdd
Vss
RC7
RC6
RC5
RC4
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
1
2
3
4
5
6
7
8
D
VCC
CON8
Sel_nf
Sel_uf
Trig555
Reset555
U1C
74LS04
R12
3k3
PIC16F876
J4
5
6
1
2
3
PWMinv
R?
U1D
CON3
9
8
74LS04
P7
U1E
11
10
74LS04
UBAT
VCC
1
U6
3
+5V
7
8
6
1
GND
R26
10k
Vin
U7
2
1
5
2
4
13
C
12
74LS04
C11
VCC
10uF/16V
3
2
LMC7660IN(8)
LM2931-5.0
J5
U1F
VDD
OSC OUT
V+
CAP+
LV
CAPNC
GND
C
C7
100uF/16V
C13
100n
R6
10k
CON2
C10
2
56
82k
1n
12
U4C
4066
VCC
4
3
6
2
1
R18
Reset555
Q1
BC557
2
U5B
U5A LF412
R19 1M 1%
3
7
R23
5
10k
R29
8
1N4007
U3
RESET
2
1k
TRIG
R22
1M 1%
56
THOLD
P4
500
C8
100n
3
OUT
CVOLT
2
R30
2k2
VCC
R21
47
C14
10uF/16V
5
R17
6k8
R14
6M8
C4
R16
470
R15
330k
47n
P5
100k
R27
6
6
555
D5
5v6
C12
220n
1
10k
U4A
4066
8
P3
1M
7
GND
R20
A
P2
200
UBAT
2
VCC
DISCHG
LF412
1M 1%
R11
1
10k
VDD
A
J3
CapIn
2
1
9
Title
CON2
U4D
4066
Size
Number
Revision
A3
Date:
File:
1
2
B
3
C5
100n
C9
100n
4
1N4007
Trig555
Out555
Sel_uF
VDD
8
2k2
R13
1k
D4
13
R8
SignalSense-
R3
R28
5
1
R5
2k2
D3
VCC
P6
100k
C6
4
1
2
3
4
5
6
1
J2 CON6
1N4007
1N4007
1M 1%
R24
1k
2
R4
2k2
D2
2
D1
R25
10
56
1
1
2
B
11
1
56
Signal+
Sense+
2k2
R10
1
R9
RA1
U4B
4066
R2
Sel_nF
10uF/16V
3
4
5
6
17-Oct-2007
Sheet of
C:\Documents and Settings\fvecoven\My Documents\Protel\Capa\Capa.ddb
Drawn By:
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