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參數(shù)資料
| 型號(hào)： | DM74123 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Dual Retriggerable One-Shot with Clear and Complementary Outputs |
| 中文描述： | 雙可重觸發(fā)一桿的清除和互補(bǔ)輸出 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 56K |
| 代理商： | DM74123 |
2000 Fairchild Semiconductor Corporation
DS006539
www.fairchildsemi.com
August 1986
Revised March 2000
D
DM74123
Dual Retriggerable One-Shot with
Clear and Complementary Outputs
General Description
The DM74123 is a dual retriggerable monostable multi-
vibrator capable of generating output pulses from a few
nano-seconds to extremely long duration up to 100% duty
cycle. Each device has three inputs permitting the choice of
either leading-edge or trailing edge triggering. Pin (A) is an
active-LOW transition trigger input and pin (B) is an active-
HIGH transition trigger input. A LOW at the clear (CLR)
input terminates the output pulse: which also inhibits trig-
gering. An internal connection from CLR to the input gate
makes it possible to trigger the circuit by a positive-going
signal on CLR as shown in the Truth Table.
To obtain the best and trouble free operation from this
device please read the Operating Rules as well as the
One–Shot Application Notes carefully and observe recom-
mendations.
Features
I
DC triggered from active-HIGH transition or active-LOW
transition inputs
I
Retriggerable to 100% duty cycle
I
Direct reset terminates output pulse
I
Compensated for V
CC
and temperature variations
I
DTL, TTL compatible
I
Input clamp diodes
Ordering Code:
Connection Diagram
Triggering Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Functional Description
The basic output pulse width is determined by selection of
an external resistor (R
X
) and capacitor (C
X
). Once trig-
gered, the basic pulse width may be extended by retrigger-
ing the gated active-LOW transition or active-HIGH
transition inputs or be reduced by use of the active-LOW
transition clear input. Retriggering to 100% duty cycle is
possible by application of an input pulse train whose cycle
time is shorter than the output cycle time such that a con-
tinuous “HIGH” logic state is maintained at the “Q” output.
Order Number
DM74123N
Package Number
N16E
Package Description
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs
B
X
L
H
Response
A
X
CLR
L
X
H
X
H
No Trigger
No Trigger
Trigger
No Trigger
Trigger
Trigger
H
L
L
H
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| DM74123N | Dual Retriggerable One-Shot with Clear and Complementary Outputs |
| DM74145 | BCD to Decimal Decoders/Drivers |
| DM74145N | BCD to Decimal Decoders/Drivers |
| DM7414 | hex inverter with schmitt trigger input |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74123J/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Monostable Multivibrator |
| DM74123N | 功能描述:單穩(wěn)態(tài)多諧振蕩器 Dual Retrig One Shot RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時(shí)間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 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 |
| DM74123N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Monostable Multivibrator |
| DM74123N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Monostable Multivibrator |
| DM74125 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Quad TRI-STATE Buffers |
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