參數(shù)資料
型號(hào)： NE556D
廠商： MOTOROLA INC
元件分類： 模擬波形發(fā)生器
英文描述： DUAL TIMING CIRCUIT
中文描述： DUAL PULSE; RECTANGULAR, TIMER, PDSO14
封裝： PLASTIC, SO-14
文件頁(yè)數(shù)： 1/10頁(yè)
文件大?。?/td> 200K
代理商： NE556D
Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
DUAL TIMING CIRCUIT
ORDERING INFORMATION
MC3456P
NE556D
0
°
to +70
°
C
Plastic DIP
SO–14
PIN CONNECTIONS
Order this document by MC3456/D
P SUFFIX
PLASTIC PACKAGE
CASE 646
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–14)
(Top View)
Discharge A
Threshold A
Control A
Reset A
Output A
Trigger A
Gnd
VCC
Discharge B
Threshold B
Control B
Reset B
Output B
Trigger B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
MOTOROLA ANALOG IC DEVICE DATA
The MC3456 dual timing circuit is a highly stable controller capable of
producing accurate time delays, or oscillation. Additional terminals are
provided for triggering or resetting if desired. In the time delay mode of
operation, the time is precisely controlled by one external resistor and
capacitor per timer. For astable operation as an oscillator, the free running
frequency and the duty cycle are both accurately controlled with two external
resistors and one capacitor per timer. The circuit may be triggered and reset
on falling waveforms, and the output structure can source or sink up to
200 mA or drive MTTL circuits.
Direct Replacement for NE556/SE556 Timers
Timing from Microseconds through Hours
Operates in Both Astable and Monostable Modes
Adjustable Duty Cycle
High Current Output can Source or Sink 200 mA
Output can Drive MTTL
Temperature Stability of 0.005% per
°
C
Normally “On” or Normally “Off” Output
Dual Version of the Popular MC1455 Timer
Figure 1. 22 Second Solid State Time Delay Relay Circuit
Figure 2. Block Diagram
(1/2 Shown)
Figure 3. General Test Circuit
Test circuit for measuring DC parameters (to set output and measure parameters):
a) When VS
2/3 VCC, VO is low.
b) When VS
1/3 VCC, VO is high.
c) When VO is low, Pin 7 sinks current. To test for Reset, set VO high,
c)
apply Reset voltage, and test for current flowing into Pin 7. When Reset
c)
is not in use, it should be tied to VCC.
1.0 k
Load
MT2
10 k
0.1
μ
F
0.01
μ
F
1
5
2
4
3
8
6
7
1.0
μ
F
C
20 M
G
MT1
–10 V
1N4003
1
1N4740
3.5 k
250 V
+
t = 1.1; R and C = 22 sec
Time delay (t) is variable by
changing R and C (see Figure 16).
–
μ
F
VCC
Threshold
Control Voltage
Trigger
2 (12)
3 (11)
6 (8)
5 k
14
5 k
5 k
+
Comp
A
–
+
Comp
B
–
7
Gnd
Reset
4 (10)
R
S
Flip
Flop
Q
Inhibit/
Reset
1 (13)
5 (9)
Discharge
Output
R
1/2
MC3456
VR
Reset
5
4
8
ICC
VCC
700
Discharge
6
Threshold
7
Ith
2.0 k
VS
Trigger
2
Gnd
1
3
ISink
ISource
VO
0.01
μ
F
+
Control
Voltage
Output
VCC
1/2
MC3456
Motorola, Inc. 1996
Rev 2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NE556D 制造商:STMicroelectronics 功能描述:Timer IC 制造商:STMicroelectronics 功能描述:IC, BIPOLAR TIMER, DUAL, 500KHZ, SOIC-14
NE556DB 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
NE556DBR 功能描述:計(jì)時(shí)器和支持產(chǎn)品 DUAL PRECISION TIMER RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
NE556DBRE4 功能描述:計(jì)時(shí)器和支持產(chǎn)品 DUAL PRECISION TIMER RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
NE556DBRG4 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Dual Prec Timer RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
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