Buffer Stage Device That Can be Connected to a Serial Peripheral Interface Bus

A system comprising:

• an electrically erasable and programmable non-volatile memory that includes a memory plane;
• a clock circuit;
• and
• a processor with a data input terminal coupled to the memory and a clock input terminal coupled to the clock circuit, the processor configured to deliver, to a data output terminal, data from a data signal of the data input terminal in synchronism with clock cycles of a clock signal of the clock input terminal, wherein the processor includes a first buffer module configured to deliver, to the data output terminal, each datum in synchronism with a first edge of the clock signal and during a first half of a clock cycle, and a second buffer module configured to hold the datum at the data output terminal during a second half of the clock cycle.

A method comprising:

• receiving a data signal;
• receiving a clock signal;
• storing data of the data signal in a first buffer module;
• storing the data of the data signal in a second buffer module;
• and
• outputting the data of the data signal in synchronism with clock cycles of the clock signal, wherein the data is output from the first buffer module in synchronism with a first edge of the clock signal and during a first portion of each clock cycle, and wherein the data is output from the second buffer module during a remaining portion of the clock cycle.

A buffer circuit comprising:

• a data input terminal;
• a clock input terminal;
• a data output terminal;
• a trigger signal generator circuit having an input coupled to the clock input terminal;
• a first buffer circuit having a first input coupled to the data input terminal, a second input coupled to a first trigger output of the trigger signal generator circuit, and an output coupled to the data output terminal;
• and
• a second buffer circuit having a first input coupled to the data input terminal, a second input coupled to a second trigger output of the trigger signal generator circuit, and an output coupled to the data output terminal.