TLC555

LinCMOS TIMER

SLFS043F − SEPTEMBER 1983 − REVISED FEBRUARY 2005

5

POST OFFICE BOX 655303

TLC555I

PARAMETER

TEST

TA†

TLC555C

TLC555I

UNIT

PARAMETER

TEST

CONDITIONS

TA†

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

VIT

Threshold voltage

25

°C

0.95

1.33

1.65

1.6

2.4

V

VIT

Threshold voltage

Full range

0.85

1.75

1.5

2.5

V

IIT

Threshold current

25

°C

10

10

pA

IIT

Threshold current

MAX

75

150

pA

VI(TRIG)

Trigger voltage

25

°C

0.4

0.67

0.95

0.71

1

1.29

V

VI(TRIG)

Trigger voltage

Full range

0.3

1.05

0.61

1.39

V

II(TRIG)

Trigger current

25

°C

10

10

pA

II(TRIG)

Trigger current

MAX

75

150

pA

VI(RESET)

Reset voltage

25

°C

0.4

1.1

1.5

0.4

1.1

1.5

V

VI(RESET)

Reset voltage

Full range

0.3

2

0.3

1.8

V

II(RESET)

Reset current

25

°C

10

10

pA

II(RESET)

Reset current

MAX

75

150

pA

Control voltage (open circuit) as

a percentage of supply voltage

MAX

66.7%

66.7%

Discharge switch on-stage

IOL = 1 mA

25

°C

0.03

0.2

0.03

0.2

V

Discharge switch on-stage

voltage

IOL = 1 mA

Full range

0.25

0.375

V

Discharge switch off-stage

25

°C

0.1

0.1

nA

Discharge switch off-stage

current

MAX

0.5

120

nA

VOH

High-level output voltage

IOH = − 300 A

25

°C

1.5

1.9

2.5

2.85

V

VOH

High-level output voltage

IOH = − 300 µA

Full range

1.5

2.5

V

VOL

Low-level output voltage

IOL = 1 mA

25

°C

0.07

0.3

0.07

0.3

V

VOL

Low-level output voltage

IOL = 1 mA

Full range

0.35

0.4

V

IDD

Supply current

See Note 2

25

°C

250

250

µA

IDD

Supply current

See Note 2

Full range

400

500

µA

† Full range is 0°C to 70°C for the TLC555C and −40°C to 85°C for the TLC555I. For conditions shown as MAX, use the appropriate value specified

in the recommended operating conditions table.

NOTE 2: These values apply for the expected operating configurations in which THRES is connected directly to DISCH or to TRIG.