4.5.3 Connection instructions
If you wish to power the Target System using the ‘External Switched Supply’ , please follow the
connection instructions detailed in the table below.
Fig. 4.5.1 ISPnano Series 2 / 3 – Power Connectors
2. DC-EXT – Connect external 1.8V – 30.0V supply
1. DC-IN – Connect 9.0V – 24.0V DC to power programmer
Programmer
Signal
name
DC IN
Function
DC Power Input
Voltage
range
(V DC)
9.0 – 24.0V
Programmer
Connector
DC-IN – pin 2
Connect to….
….on the Target
System
Power supply input for
programmer
EXT-VCC-IN
External Switched 1.8 – 24.0V
DC Power Input
EXT-VCC-IN – pin 2
Connect to
‘EXTERNAL’ power
supply source.
EXT-VCC-OUT Switched output
of ‘External VCC’
supply
1.8 – 24.0V
‘Target ISP Port’
- pins 3+4
Connect to the INPUT
of the Target System
regulator circuit.
TVCC
Target Vcc
Supply /
1.2 – 5.0 V
‘Target ISP Port’
- pins 1+2
Connect to the
OUTPUT of the Target
measurement
System regulator circuit
or the Vcc rail for the
IC to be programmed.
SIGNAL_
GROUND
POWER_
GROUND
0V Signal
GROUND
0V Power
GROUND
0V
0V
‘Target ISP Port’
- pins 5+6
Do not connect!!!
Signal GROUND
between programmer
and Target System.
Connect GROUND
wire from 0V of Target
System to star-
connected 0V of main
power supply.
Please refer to fig 4.5.1 for a schematic showing the connections and pin numbers.
ISPnano Series Programmer - User Manual – V1.11 – 12 May 2011
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