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HD74LV123ATELL 参数 Datasheet PDF下载

HD74LV123ATELL图片预览
型号: HD74LV123ATELL
PDF下载: 下载PDF文件 查看货源
内容描述: 双可再触发单稳态触发器 [Dual Retriggerable Monostable Multivibrators]
分类和应用: 触发器
文件页数/大小: 16 页 / 119 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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HD74LV123A
Dual Retriggerable Monostable Multivibrators
REJ03D0314–0600Z
(Previous ADE-205-258D (Z))
Rev.6.00
Jun. 02, 2004
Description
The HD74LV123A features output pulse-duration control by three methods. In the first method, the A input is low and
the B input goes high. In the second method, the B input is high and the
A
input goes low. In the third method, the
A
input is low, the B input is high, and the clear (CLR) input goes high.
The basic pulse duration is programmed by selecting external resistance and capacitance values.
The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor
connected between Rext/Cext and Vcc
To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and Vcc.
Once triggered, the basic pulse duration can be extended by retriggering the gated low-level-active (A) or high-level-
active (B) input. Pulse duration can be reduced by taking
CLR
low.
Features
V
CC
= 2.0 V to 5.5 V operation
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All outputs V
O
(Max.) = 5.5 V (@V
CC
= 0 V)
Output current ±6 mA (@V
CC
= 3.0 V to 3.6 V), ±12 mA (@V
CC
= 4.5 V to 5.5 V)
Ordering Information
Package Type
SOP–16 pin(JEITA)
SOP–16 pin(JEDEC)
TSSOP–16 pin
Package Code
FP–16DAV
FP–16DNV
TTP–16DAV
Package
Abbreviation
FP
RP
T
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
EL (2,500 pcs/reel)
ELL (2,000 pcs/reel)
Part Name
HD74LV123AFPEL
HD74LV123ARPEL
HD74LV123ATELL
Note: Please consult the sales office for the above package availability.
Rev.6.00 Jun. 02, 2004 page 1 of 15