Device Programming Voltage Range - Equinox Systems PPM3 MK2 User Manual

4.4.2 Device Programming Voltage Range

The PPM3 programmer can program devices with a target voltage between the min. and max. values
detailed in the table below. The programmer cannot currently support programming of devices below
3.V. Please contact Equinox directly for further assistance if your Target Voltage is < 3.0V.
# Programmer mode
1 Allowed voltage range for actual programming of devices
Important note:
To verify that a particular device can be programmed at a certain Vcc voltage:
•
Check the supply / programming voltage parameters for the actual device (IC) in the
manufacturer's datasheet.
•
Many devices have two different voltage range versions eg. 2.7 – 6.0V and 4.0 – 6.0V.
Please ensure that you are programming the device within the stated voltage range.
•
Ensure that you have selected the required Target Vcc Voltage in your EQTools –
Programming Project (*.ppm).
e.g. if you are programming at +3.3V, you must set up this voltage in your Programming
Project. This can be found in the EQTools - Project Builder <Target Vcc> tab.
•
For most Atmel AVR and AT89S devices, the FLASH and EEPROM Write Times increase as
the Target Voltage decreases. The timings are automatically set for you in your project as
long as you have declared the correct Target Vcc voltage in your project.
PPM3 MKII Programmer - User Guide - V1.04 - 10
th
May 2008
Min Max Units
Vcc Vcc
3.00 5.00 V
59