參數(shù)資料
型號(hào): HEF4078BP
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: 8-input NOR gate
中文描述: 4000/14000/40000 SERIES, 8-INPUT NOR GATE, PDIP14
封裝: PLASTIC, SOT-27-1, DIP-14
文件頁(yè)數(shù): 3/3頁(yè)
文件大?。?/td> 28K
代理商: HEF4078BP
January 1995
3
Philips Semiconductors
Product specification
8-input NOR gate
HEF4078B
gates
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25
°
C; C
L
= 50 pF; input transition times
20 ns
V
DD
V
SYMBOL
TYP.
MAX.
TYPICAL EXTRAPOLATION
FORMULA
Propagation delays
I
n
O
n
HIGH to LOW
5
80
35
25
80
35
25
160
70
50
160
70
50
ns
ns
ns
ns
ns
ns
53 ns
24 ns
17 ns
53 ns
24 ns
17 ns
+
+
+
+
+
+
(0,55 ns/pF) C
L
(0,23 ns/pF) C
L
(0,16 ns/pF) C
L
(0,55 ns/pF) C
L
(0,23 ns/pF) C
L
(0,16 ns/pF) C
L
10
15
t
PHL
5
LOW to HIGH
10
15
t
PLH
Output transition
times
HIGH to LOW
5
60
30
20
60
30
20
120
60
40
120
60
40
ns
ns
ns
ns
ns
ns
10 ns
9 ns
6 ns
10 ns
9 ns
6 ns
+
+
+
+
+
+
(1,0 ns/pF) C
L
(0,42 ns/pF) C
L
(0,28 ns/pF) C
L
(1,0 ns/pF) C
L
(0,42 ns/pF) C
L
(0,28 ns/pF) C
L
10
15
t
THL
5
LOW to HIGH
10
15
t
TLH
V
DD
V
TYPICAL FORMULA FOR P (
μ
W)
Dynamic power
dissipation per
package (P)
5
750 f
i
+ ∑
(f
o
CL)
×
V
DD2
2800 f
i
+ ∑
(f
o
CL)
×
V
DD2
7500 f
i
+ ∑
(f
o
CL)
×
V
DD2
where
f
i
= input freq. (MHz)
f
o
= output freq. (MHz)
C
L
= load capacitance (pF)
(f
o
C
L
) = sum of outputs
V
DD
= supply voltage (V)
10
15
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