# Positive-edge D flip-flop

Canonical URL: https://eloragrid.ai/symbols/positive-edge-d-flip-flop
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: D-FF
Drawing use: Schematic
Reference families: Manufacturer

Captures its data input at the documented positive clock edge and retains that digital state.

## What it represents

Captures its data input at the documented positive clock edge and retains that digital state.
On a schematic, identify the D input, clock edge and asynchronous preset/clear polarities and trace the stored Q output and any complemented output. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
An edge-triggered flip-flop differs from a transparent latch; data timing relative to the clock remains essential.
The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing.

## How to read it

- Identify the D input, clock edge and asynchronous preset/clear polarities.
- Trace the stored Q output and any complemented output.

## Information to show or reference

- Label the D input, clock edge and asynchronous preset/clear polarities.
- Cross-reference the stored Q output and any complemented output.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.

## Important distinction

An edge-triggered flip-flop differs from a transparent latch; data timing relative to the clock remains essential.

## Facts

- Common schematic mnemonic: D-FF — descriptive only; project/device documentation defines reference designations.
- Terminal / interface focus: The D input, clock edge and asynchronous preset/clear polarities
- Artwork scope: Original educational functional/circuit reference; not a selected product pinout.

## Public references

- [SN74HC74 — positive-edge D flip-flops](https://www.ti.com/lit/ds/symlink/sn74hc74.pdf) — Texas Instruments. Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.