Datasheet
TLC555, TLC555Y
LinCMOS TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
DD
= 5 V
PARAMETER
TEST
T
†
TLC555C TLC555I TLC555M
UNIT
PARAMETER
CONDITIONS
T
A
†
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNIT
V
IT
Threshold voltage
25°C
2.8 3.3 3.8 2.8 3.3 3.8 2.8 3.3 3.8
V
V
IT
Threshold
voltage
Full range 2.7 3.9 2.7 3.9 2.7 3.9
V
I
IT
Threshold current
25°C
10 10 10
p
A
I
IT
Threshold
current
MAX 75 150 5000
pA
V
I(TRIG)
Trigger voltage
25°C
1.36 1.66 1.96 1.36 1.66 1.96 1.36 1.66 1.96
V
V
I(TRIG)
Trigger
voltage
Full range 1.26 2.06 1.26 2.06 1.26 2.06
V
I
I(TRIG)
Trigger current
25°C
10 10 10
p
A
I
I(TRIG)
Trigger
current
MAX 75 150 5000
pA
V
I(RESET)
Reset voltage
25°C
0.4 1.1 1.5 0.4 1.1 1.5 0.4 1.1 1.5
V
V
I(RESET)
Reset
voltage
Full range 0.3 1.8 0.3 1.8 0.3 1.8
V
I
I(RESET)
Reset current
25°C
10 10 10
p
A
I
I(RESET)
Reset
current
MAX 75 150 5000
pA
Control voltage (open
circuit) as a
percentage of supply
voltage
MAX 66.7% 66.7% 66.7%
Discharge switch
I
OL
=10mA
25°C
0.14 0.5 0.14 0.5 0.14 0.5
V
g
on-state voltage
I
OL
=
10
mA
Full range 0.6 0.6 0.6
V
Discharge switch
25°C
0.1 0.1 0.1
nA
g
off-state current
MAX 0.5 120 120
nA
V
OH
High-level output
I
OH
=1mA
25°C
4.1 4.8 4.1 4.8 4.1 4.8
V
V
OH
g
voltage
I
OH
= –
1
mA
Full range 4.1 4.1 4.1
V
I
OL
=8mA
25°C
0.21 0.4 0.21 0.4 0.21 0.4
I
OL
=
8
mA
Full range 0.5 0.5 0.6
V
OL
Low-level output
I
OL
=5mA
25°C
0.13 0.3 0.13 0.3 0.13 0.3
V
V
OL
voltage
I
OL
=
5
mA
Full range 0.4 0.4 0.45
V
I
OL
=32mA
25°C
0.08 0.3 0.08 0.3 0.08 0.3
I
OL
=
3
.
2
mA
Full range 0.35 0.35 0.4
I
DD
Su
pp
ly current
See Note 2
25°C
170 350 170 350 170 350
µA
I
DD
Supply
current
See
Note
2
Full range 500 600 700
µ
A
†
Full range is 0°C to 70°C the for TLC555C, – 40°C to 85°C for the TLC555I, and – 55°C to 125°C for the TLC555M. 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 TRIG.