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参数资料
| 型号： | TLC555MFK |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟波形发生器 |
| 英文描述： | PULSE; RECTANGULAR, 1.2 MHz, TIMER, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 24/24页 |
| 文件大小： | 726K |
| 代理商： | TLC555MFK |
TLC555
LinCMOS TIMER
SLFS043F SEPTEMBER 1983 REVISED FEBRUARY 2005
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 1
2
1
75 50
25
0
25
75
125
Discharge
Switch
On-State
Resistance
DISCHARGE SWITCH ON-STATE RESISTANCE
vs
FREE-AIR TEMPERATURE
50
100
10
4
20
100
40
7
70
TA Free-Air Temperature °C
VDD = 2 V, IO = 1 mA
VDD = 5 V, IO = 10 mA
VDD = 15 V, IO = 100 mA
Figure 2
100
0
2
4
6
8
12
16
PROPAGATION DELAY TIMES TO DISCHARGE
OUTPUT FROM TRIGGER AND THRESHOLD
SHORTED TOGETHER
vs
SUPPLY VOLTAGE
10
14
400
200
500
600
300
VDD Supply Voltage V
20
18
PHL
t,
PLH
t
Propagation
Delay
T
imes
ns
tPLH
IO(on) ≥ 1 mA
CL ≈ 0
TA = 25°C
The effects of the load resistance on these values must be
taken into account separately.
tPHL
APPLICATION INFORMATION
0.1
F
0.1
F
CT
CL
RL
Output
RB
RA
GND
TRIG
THRES
RESET
DISCH
CONT
VDD
OUT
VDD
2/3 VDD
1/3 VDD
GND
tPHL
tPLH
tc(H)
tc(L)
CIRCUIT
TRIGGER AND THRESHOLD VOLTAGE WAVEFORM
TLC555
6
1
3
8
5
4
7
2
Pin numbers shown are for all packages except the
FK package.
Figure 3. Astable Operation
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