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Flasher ST7

Flash programmer for ST7 series of flash microcontrollers with on-chip flash



  • Small, compact housing
  • Easy to use windows program
  • Free software updates1, 2 years of support
  • Serial (in target) programming supported
  • Programming / Verifying / Read back supported
  • OPTION BYTE Programming supported
  • 512 KB internal Flash memory to store target program
  • High speed programming: app 12 sec for 60 KB in serial mode with 16 MHz target clock for programming and verification
  • Can be used in a production environment
  • PC program allows batch mode processing for usage in automated test systems
  • Once set up, Flasher can be controlled without the use of PC program
  • ASCII command interface to control Flasher without the use of PC program (Requires firmware version 1.84 or above)

1As a legitimate owner of a SEGGER Flasher, you can always download the latest software free of charge. Though not planned and not likely, we reserve the right to change this policy. Note that older models may not be supported by newer versions of the software. Typically, we support older models with new software at least 3 years after end of life.

Package content

Flasher ST7 is delivered with the following components:
Flasher ST7 IDC target interface cable RS232 cable 1:1 female / female Power supply

10-pin Needle Adapter

SEGGER offers the 10-pin Needle Adapter, which has been designed to connect Flasher 5, Flasher 5 PRO, Flasher ST7 or Flasher STM8 to a PCB which does not come with a mating connector or programming header. The designed pattern with 3 locating pins ensures that the adapter can only be connected in one way.

The 10-pin needle adapter allows manufacturers to save costs and space on their PCBs since there is no need to provide the PCB with additional connectors. It adapts from the 10-pin, 0.1 inch connector to a 10-pin, 0.05 inch needle pattern.