參數(shù)資料
型號: HEF4059B
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Programmable divide-by-n counter(可編程÷n計(jì)數(shù)器)
中文描述: 可編程分頻氮計(jì)數(shù)器(可編程÷ ?計(jì)數(shù)器)
文件頁數(shù): 6/6頁
文件大小: 58K
代理商: HEF4059B
January 1995
6
Philips Semiconductors
Product specification
Programmable divide-by-n counter
HEF4059B
LSI
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25
°
C; input transition times
20 ns
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25
°
C; C
L
= 50 pF; input transition times
20 ns
V
DD
V
TYPICAL FORMULA FOR P (
μ
W)
Dynamic power
dissipation per
package (P); n = 3
5
1 100 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
5 500 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
15 000 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
500 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
3 500 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
9 000 f
i
+ ∑
(f
o
C
L
)
×
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
5
10
15
n = 1000
V
DD
V
SYMBOL
MIN.
TYP.
MAX.
TYPICAL EXTRAPOLATION
FORMULA
+
(0,25 ns/pF) C
L
40 ns
+
(0,10 ns/pF) C
L
32 ns
+
(0,07 ns/pF) C
L
76 ns
+
(0,48 ns/pF) C
L
40 ns
+
(0,20 ns/pF) C
L
33 ns
+
(0,15 ns/pF) C
L
10 ns
+
(0,40 ns/pF) C
L
6 ns
+
(0,18 ns/pF) C
L
4 ns
+
(0,13 ns/pF) C
L
10 ns
+
(0,70 ns/pF) C
L
9 ns
+
(0,33 ns/pF) C
L
5 ns
+
(0,23 ns/pF) C
L
Propagation delays
CP
O
HIGH to LOW
5
90
45
35
100
50
40
30
15
10
45
25
16
180
90
70
200
100
80
60
30
20
90
50
32
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
78 ns
10
15
5
10
15
5
10
15
5
10
15
5
10
15
t
PHL
LOW to HIGH
t
PLH
Output transition times
HIGH to LOW
t
THL
LOW to HIGH
t
TLH
Maximum clock
pulse frequency
3,5
7,5
10,0
7
f
max
15
20
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