TLC555 Datasheet, PDF (8/19 Pages) Texas Instruments – LinCMOSE TIMERS

TLC555
LinCMOS TIMER
SLFS043F − SEPTEMBER 1983 − REVISED FEBRUARY 2005
operating characteristics, V_DD = 5 V, T_A = 25°C (unless otherwise noted)
PARAMETER
Initial error of timing interval‡
Supply voltage sensitivity of timing interval
TEST CONDITIONS
VDD = 5 V to 15 V, RA = RB = 1 kΩ to 100 kΩ,
CT = 0.1 µF,
See Note 3
MIN TYP MAX UNIT
1% 3%
0.1 0.5 %/ V
tr
Output pulse rise time
tf
Output pulse fall time
RL = 10 MΩ,
CL = 10 pF
20
75
ns
15
60
fmax Maximum frequency in astable mode
RA = 470 Ω,
CT = 200 pF,
RB = 200 Ω,
See Note 3
1.2 2.1
MHz
‡ _{Timing interval error is defined as the difference between the measured value and the average value of a random sample from each process}
run.
NOTE 3: RA, RB, and CT are as defined in Figure 1.
electrical characteristics at V_DD = 5 V, T_A = 25°C
PARAMETER
TEST CONDITIONS MIN TYP MAX
VIT
IIT
VI(TRIG)
Threshold voltage
Threshold current
Trigger voltage
2.8
3.3
3.8
10
1.36 1.66 1.96
II(TRIG)
Trigger current
10
VI(RESET)
II(RESET)
Reset voltage
Reset current
Control voltage (open circuit) as a percentage of supply voltage
0.4
1.1
1.5
10
66.7%
Discharge switch on-state voltage
Discharge switch off-state current
IOL = 10 mA
0.14 0.5
0.1
VOH
High-level output voltage
IOH = − 1 mA
4.1
4.8
IOL = 8 mA
0.21 0.4
VOL
Low-level output voltage
IOL = 5 mA
0.13 0.3
IOL = 3.2 mA
0.08 0.3
IDD
Supply current
See Note 2
170 350
NOTE 2: These values apply for the expected operating configurations in which THRES is connected directly to DISCH or TRIG.
UNIT
V
pA
V
pA
V
pA
V
nA
V
V
µA
8
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