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| 型號： | HEF4093BU |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Quad 2-input NAND Schmitt trigger |
| 中文描述： | 四2輸入與非施密特觸發(fā)器 |
| 封裝： | HEC4093BT<SOT108-1 (SO14)|<<http://www.nxp.com/packages/SOT108-1.html<1<week 32, 2004,;HEC4093BT<SOT108-1 (SO14)|<<http://www.nxp.com/packages/SOT108-1.html<1<week |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 367K |
| 代理商： | HEF4093BU |
HEF4093B
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 7 — 1 September 2010
9 of 15
NXP Semiconductors
HEF4093B
Quad 2-input NAND Schmitt trigger
14. Application information
Some examples of applications for the HEF4093B
are:
Wave and pulse shapers
Astable multivibrators
Monostable multivibrators
If a Schmitt trigger is driven via a high-impedance (R >
1 k
Ω
), then it is necessary to incorporate a capacitor C
V
–
V
H
with a value of
; otherwise oscillation
can occur on the edges of a pulse.
C
p
is the external parasitic capacitance between
inputs and output; the value depends on the circuit
board layout.
Remark:
The two inputs may be connected together,
but this will result in a larger through-current at the
moment of switching.
T
amb
= 25
°
C.
Typical switching levels as a function of supply voltage
Fig 9.
V
DD
(V)
2.5
17.5
12.5
7.5
5
15
10
001aag112
5
10
V
I
(V)
0
V
T+
V
T
Fig 10. Astable multivibrator
Fig 11. Schmitt trigger driven via a
high-impedance input
001aag113
V
DD
V
DD
1
2
3
7
14
Cp
R
C
001aag114
V
DD
V
DD
1
2
3
7
14
C
P
C
SS
-----------------V
>
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