Other - Dataman 448PRO2AP-AU User Manual

When PICmicro
Therefore, the target system must be isolated from this voltage provided by programmer.
RB6 and RB7 signals are used by the PICmicro
system mustn't affect these signals during In-system programming to avoid programming
errors.
Marginal verify is used after programming. Programmer must verify the program memory
contents at both minimal and maximal power supply, therefore VDD pin of PICmicro
isolated from rest of target system during programming.
DATAMAN recommended circuit for PICmicro:
ISP connector
Note: External reset circuit is necessary only if VDD power-up slope is too slow.

Other

Please don't move Info window during BUSY LED is on - watching circuit can be activate to
switch the programmer in safe status as in case communication PC-programmer error.
®
device is programmed; pin MCLR\ / VPP is driven to approximately 12 V.
DATA
CLK
VDD
MCLR/VPP
VSS
R11
22k
1N4148
C2
1u/25V
VSS
reset circuit
®
for In-system programming; therefore target
target device
C1
22n
VSS
D1
*1
R7
47R
VSS
D2
MCLR/VPP
R6 1k
VSS
156
target system
VDD
VDD
RB7
RB6
I1
PICxxxxx
VSS
VSS
®
must be
R1
R2