THRES

CONT

DISCH

OUT

GND

COMPONENT COUNT

Transistors

Resistors

39

5

TRIG

RESET

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19

TLC555

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SLFS043I – SEPTEMBER 1983 – REVISED JULY 2019

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(1)

For conditions shown as MIN or MAX, use the appropriate value specified under Electrical Characteristics: VDD = 5 V.

(2)

7.4 Device Functional Modes

Table 1 shows the device truth table.

Table 1. Function Table

RESET

THRESHOLD

OUTPUT

DISCHARGE SWITCH

<MIN

Irrelevant

Irrelevant

L

On

>MAX

<MIN

H

Off

>MAX

>MAX

>MAX

L

On

>MAX

>MAX

<MIN

As previously established

Figure 17. Equivalent Schematic