Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
COMM PWR
# Function Button
t
100-300ms
WDO
WD
WDI
Minimum Timeout Settings
SET2
0
1
Disabled
1s
10s
60s
SET1 SET0
0
0
t
WD
11
1
11
111
ISP_MODE: 0 - DISABLE, 1 - ENABLE.
Watchdog
RESET
RESET
VCC_3.3V
VCC_3.3V VCC_3.3V
GND
VCC_3.3V
VCC_3.3V
VCC_3.3V
VCC_3.3V
VCC_3.3V
VCC_3.3V
P14_TXD1[6]
ISP_MODE [3,6]
RESET [4,6]
UHF_TXD[6]
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
Watchdog
B
27Monday, January 04, 2021
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
Watchdog
B
27Monday, January 04, 2021
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
Watchdog
B
27Monday, January 04, 2021
SW1
PTS-040
1 2
3 4
R7
10K
D2
LED_GREEN
12
D1
LED_YELLOW
12
R11 10K
R12
330
Q11
RE1C002UN
1
3
2
R152
100K
D17
PESD0603-240
12
R15 0
R8
10K
R14
100K
Q10
RE1C002UN
1
3
2
Q2
DTC114EET1
1
3
2
C12
100nF
R10 0
U2
MAX6369
WDI
1
GND
2
NC
3
SET0
4
SET1
5
SET2
6
WDO
7
VCC
8
C63
18pF
R13
330
R9
10K
Q1
DTC114EET1
1
3
2