Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

SRG8

IEC

IEC shift register (SRGm)

SRGm identifies a shift register of m bits. The clock input is labelled with C1 and a shift arrow, showing that each active edge moves data one place. The serial input is labelled 1D, and the parallel outputs are listed down the right side, typically in a column of per-bit elements under a common-control block.

Drawing use

Schematic

Application

Logic & signals

Reference family

IEC / Manufacturer

Form evidence

Rectangular element with SRGm qualifier and a shift-right clock. Qualifying-symbol and dependency conventions as explained in TI's public overview of IEEE Std 91-1984, which incorporates IEC 617-12 work. Independent educational drawing; not certified IEC geometry or an IEC database identifier. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

A latched shift register adds a storage register and its own clock between the shift stages and the outputs.

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SIPO

Symbols

Serial-in parallel-out register

Shifts serial input data through storage stages to parallel outputs at the documented clock events.

Drawing use

Schematic

Application

Logic & signals

Reference family

Manufacturer

A distinction that matters

A SIPO register exposes its shifted bits; an output-latched register can retain a separate displayed output word.

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Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.