• High-speed In-System Programming (ISP) support of Atmel ATtiny  AVR microcontrollers via the 2-wire TPI (Tiny Programming Interface) 
• Supports programming the on-chip FLASH, Fuse and Lock Bits of ATtiny TPI AVR microcontrollers
• Uses the proprietary Atmel 2-wire TPI (Tiny Programming Interface)  to program the target device
• Supports low-voltage (+5V) TPI programming mode
• Supports high-voltage (+12V Vpp on RESET pin) TPI programming mode 
• Very high-speed programming due to local data storage and optimised programming algorithms
• Optimised line driver circuit for TPI DATA line to allow bi-directional communications
• Programmers can be used in "Standalone Mode" (no PC) - Up to 64 x ATtiny 'Programming Projects' can be stored inside an ISPnano programmer
• Supports high-speed program / verify of the ATtiny on-chip FLASH in a singe operation.
• Optimised Erase operation supports independent erasing of FLASH and Configuration Section
• Supports programming of non volatle Fuse Bits
• Supports programming of the "Security Fuses" (Lock Bits) to protect code from being read out
• Supports reading of on-chip RC Oscillator Calibration Byte

This 'Device Library' is compatible with any of the Equinox programmers listed below:

Important notes:

• The ISPnano Series 3, Series S3 ATE, Series 4 ATE and GANG programmers require a 'Device Library' per programmer channel.
• The ISPnano-MUX programming systems only require one licnese per programmer.

The 'Low-voltage ATtiny TPI' interface uses 3 pins for programming the Target Device as detailed in the table below.

PDI Signal Name	Signal description	Direction from programmer	Pin name on ATtiny device
TPI_CLK	TPI Clock Signal	Output	TPI_CLK
TPI_DATA	PDI Data Signal (bi-directional)	Bi-directional	TPI_DATA
/RESET	RESET pin	Output	RESET

The ATtiny device must be powered at +5.0V during the programming process. It is not possible to program the device at any voltage lower than +5.0V.

The 'High-voltage ATtiny TPI' interface uses 3 pins for programming the Target Device as detailed in the table below.

PDI Signal Name	Signal description	Direction from programmer	Pin name on ATtiny device
TPI_CLK	TPI Clock Signal	Output	TPI_CLK
TPI_DATA	PDI Data Signal (bi-directional)	Bi-directional	TPI_DATA
/RESET +12Vpp	RESET pin	Output	RESET

The ATtiny device must be powered at +5.0V during the programming process. The programmer must apply a +12V Vpp voltage to the RESET pin in order to enter this mode. This mode is usually only used if the RSTDIBL (RESET pin disable) fuse has been set.

• ATtiny (High voltage TPI Interface) : ATtiny TPI algorithm requiring that +12V Vpp is applied to the RESET pin.
• ATtiny (Low voltage TPI Interface)

Please note:
Not all devices may be supported within a family.
Please see the Detailed Device Support List for a list of all devices which the product supports.