Elnec JetProg - Page 154

ELNEC s. r. o.
ELNEC’s recommended circuit for ATMEL AVR:
ISP connector target device target system
reset circuit
R2
22k
R3
22k
G
N
D
C1
22n
G
N
D
VCC
GND
D2
1N4148
GND
R4
100k
C2
1u/10V
VCC
SCK
MISO
RESET
GND
I1
AT M E L AV R
DATA OUT
SCK
VCC
RESET
R1
22k
MOSI
DATA I
N
ELNEC’s recommended circuit for AT89Sxxx:
ISP connector target device target system
reset circuit
R2
22k
R3
22k
G
N
D
C1
22n
G
N
D
VCC
GND
D2
1N4148
GND
VCC
SCK
MISO
GND
I1
AT89Sxxx
DATA OUT
SCK
VCC
RESET
R1
22k
MOSI
DATA I
N
R4
100k
C2
1u/10V
RST
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