HEF4519BT [NXP]
Quadruple 2-input multiplexer; 四路2输入多路复用器
| 型号： | HEF4519BT |
| 厂家： | 
NXP |
| 描述： | Quadruple 2-input multiplexer |
| 文件： | 总5页 (文件大小：47K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
• The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
HEF4519B
MSI
Quadruple 2-input multiplexer
January 1995
Product specification
File under Integrated Circuits, IC04
Philips Semiconductors
Product specification
HEF4519B
MSI
Quadruple 2-input multiplexer
When SA and SB are LOW, the output (On) is LOW,
DESCRIPTION
independent of the multiplexer inputs (An and Bn).
The HEF4519B provides four multiplexing circuits with
common select inputs (SA, SB); each circuit contains two
inputs (An, Bn) and one output (On). It may be used to
select four bits of information from one of two sources.
The HEF4519B cannot be used to multiplex analogue
signals. The outputs utilize standard buffers for best
performance.
The ‘A’ inputs are selected when SA is HIGH, the ‘B’ inputs
when SB is HIGH. When SA and SB are HIGH, the output
(On) is the logical EXCLUSIVE-NOR of the An and
Bn inputs (On = An
Bn).
Fig.1 Functional diagram.
PINNING
SA, SB
selects inputs (active HIGH)
multiplexer inputs
A0 to A3
Bo to B3
O0 to O3
multiplexer inputs
multiplexer outputs
FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
Fig.2 Pinning diagram.
HEF4519BP(N): 16-lead DIL; plastic (SOT38-1)
HEF4519BD(F):
16-lead DIL; ceramic (cerdip)
(SOT74)
HEF4519BT(D):
16-lead SO; plastic (SOT109-1)
( ): Package Designator North America
January 1995
2
Philips Semiconductors
Product specification
HEF4519B
MSI
Quadruple 2-input multiplexer
Fig.3 Logic diagram.
FUNCTION TABLE
INPUTS
OUTPUT
On
SA
SB
An
Bn
L
H
L
L
L
X
An
X
X
X
L
An
Bn
H
L
H
H
H
H
H
Bn
L
H
H
H
H
L
H
L
L
H
H
L
H
H
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
January 1995
3
Philips Semiconductors
Product specification
HEF4519B
MSI
Quadruple 2-input multiplexer
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
TYPICAL EXTRAPOLATION
FORMULA
SYMBOL
TYP. MAX.
Propagation delays
An , Bn → On
5
95
40
30
80
40
30
95
40
30
85
40
30
60
30
20
60
30
20
190
80
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
68 ns
29 ns
22 ns
53 ns
29 ns
22 ns
68 ns
29 ns
22 ns
58 ns
29 ns
22 ns
10 ns
9 ns
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(1,0 ns/pF) CL
(0,42 ns/pF) CL
(0,28 ns/pF) CL
(1,0 ns/pF) CL
(0,42 ns/pF) CL
(0,28 ns/pF) CL
HIGH to LOW
10
15
5
tPHL
tPLH
tPHL
tPLH
tTHL
tTLH
60
160
80
LOW to HIGH
10
15
5
60
SA, SB → On
190
80
HIGH to LOW
10
15
5
55
165
80
LOW to HIGH
10
15
5
60
Output transition times
HIGH to LOW
120
60
10
15
5
40
6 ns
120
60
10 ns
9 ns
LOW to HIGH
10
15
40
6 ns
VDD
V
TYPICAL FORMULA FOR P (µW)
2
Dynamic power
dissipation per
package (P)
5
10
15
1000 fi + ∑ (foCL) × VDD
where
2
6000 fi + ∑ (foCL) × VDD
fi = input freq. (MHz)
2
17 000 fi + ∑ (foCL) × VDD
fo = output freq. (MHz)
CL = load capacitance (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
APPLICATION INFORMATION
Some examples of applications for the HEF4519B are:
• 2-input multiplexers.
• True/complement selectors.
January 1995
4
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