MC3030

RS NOR Latch
About
ID	MC3030
Type	3ISO
Self-Triggering	No
Clickable	No
Input	Three
Output	Single
Sign Format
First line	RS NOR LATCH
Second line	[MC3030]
Craftbook Page

MC3030 is a Craftbook IC that functions as an RS latch, retaining its output state until it receives a Set or Reset input.

Details

• Second Line
  • [MC3030]

The IC has a Set input, two Reset inputs, and one output (Q).

• When the Set input is high, the output is set high, provided neither Reset input is high.
• When either Reset input is high, the output is set low.
• When all inputs are low, the output retains its previous state.

If the Set and either Reset input are high simultaneously, the Reset inputs take priority and the output is set low.

Set	Reset 1	Reset 2	Output (Q)
Low	Low	Low	Retains previous state
High	Low	Low	High
Low	High	Low	Low
Low	Low	High	Low
High	High	Low	Low
High	Low	High	Low
Low	High	High	Low
High	High	High	Low

Examples

Basic latch

line1:
line2: [MC3030]
line3:
line4:

A high signal on the Set input turns the output on. The output remains high after the Set input goes low, until either Reset input receives a high signal.