The base is connected to a 10K ohm reistor which is connected to the serial data output pin of your microcontroller (ours is pin 1 aka TX aka the pin on the upper left).

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The per-pin data rate for DDR4 is specified as 1.6 giga transfers per second to an initial maximum objective of 3.2 giga transfers per second.

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However, the firm does not believe return customers at its UK stores were affected - or that chip and pin data in the UK was accessed as none is stored on the systems in Watford.

BBC: NEWS | Business | Hackers target TK Maxx customers