D Latch: Difference between revisions
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The D Latch has an input on the side (data), an input on the top (enable), and an output on the top. The input on the side is a state to be latched; while the enable input is HIGH, the output state will be latched to the input's state. | The D Latch has an input on the side (data), an input on the top (enable), and an output on the top. The input on the side is a state to be latched; while the enable input is HIGH, the output state will be latched to the input's state. | ||
The D Latch will demonstrate the following behavior: | The D Latch will demonstrate the following behavior, where <code>*</code> represents the previous state: | ||
{ | |||
| | {{Truth table | ||
| inputs=Data,Enable | |||
| outputs=1 | |||
| caption=D-Latch Truth Table | |||
|- | | 0 0 * | ||
| | | 0 1 0 | ||
| 1 0 * | |||
| 1 1 1 | |||
| | }} | ||
|* | |||
| | |||
== Timing == | == Timing == | ||
Revision as of 01:54, 7 September 2025
 D Latch | |
| Component info | |
|---|---|
| Internal ID |
MHG.DLatch |
| Configurable | No |
| Input and output | |
| Input count | 2 |
| Output count | 1 |
| Propagation delay | 1 tick |
The D Latch is a basic digital component who's output can be latched to the input when the latch pin is set to HIGH.
The D Latch has an input on the side (data), an input on the top (enable), and an output on the top. The input on the side is a state to be latched; while the enable input is HIGH, the output state will be latched to the input's state.
The D Latch will demonstrate the following behavior, where * represents the previous state:
| Data | Enable | Output |
|---|---|---|
| 0 | 0 | * |
| 0 | 1 | 0 |
| 1 | 0 | * |
| 1 | 1 | 1 |
Timing
The D Latch has a latency of 1 tick, so in the instance when the enable pin is HIGH, the output will become latched to the data input 1 tick later.
Configurability
This component cannot be configured in the edit menu.