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參數(shù)資料
| 型號： | SE556 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Dual Precision Timers(精密定時器) |
| 中文描述： | 雙精密計時器（精密定時器） |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 94K |
| 代理商： | SE556 |
July 1998
.
LOW TURN OFF TIME
.
MAXIMUM
GREATERTHAN 500kHz
.
TIMING FROM MICROSECONDS TO HOURS
.
OPERATES
MONOSTABLEMODES
.
HIGH OUTPUT CURRENT CAN SOURCE OR
SINK200mA
.
ADJUSTABLE DUTY CYCLE
.
TTL COMPATIBLE
.
TEMPERATURE STABILITYOF 0.005%
PER
o
C
OPERATING
FREQUENCY
IN
BOTH
ASTABLE
AND
ORDER CODES
Part
Number
Temperature
Range
Pakcage
N
D
NE556
SA556
SE556
0
o
C, 70
o
C
–40
o
C, 105
o
C
–55
o
C, 125
o
C
DESCRIPTION
TheNE556 dual monolithictiming circuit is a highly
stablecontrollercapableofproducingaccuratetime
delaysor oscillation.In the time delay mode of op-
eration,thetime ispreciselycontrolledby oneexter-
nalresistor andcapacitor.For astableoperationas
anoscillator,thefreerunningfrequencyandtheduty
cycleare both accurately controlledwith two exter-
nalresistors and one capacitor.The circuit maybe
triggered and reset on falling waveforms, and the
outputstructure can sourceor sink upto 200mA.
GENERAL PURPOSE DUAL BIPOLAR TIMERS
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
Trigger
Output
Control Voltage
4
8
5
6
7
9
10
11
12
13
14
Trigger
Threshold
Discharge
Reset
Output
Discharge
GND
1
2
3
Threshold
Control Voltage
Reset
CC
V
PIN CONNECTIONS
(top view)
NE556
SA556 - SE556
1/9
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