參數(shù)資料
型號: HCT540
廠商: NXP Semiconductors N.V.
英文描述: Octal buffer/line driver; 3-state; inverting
中文描述: 八路緩沖器/線路驅(qū)動器,3態(tài);反相
文件頁數(shù): 5/7頁
文件大?。?/td> 51K
代理商: HCT540
December 1990
5
Philips Semiconductors
Product specification
Octal buffer/line driver; 3-state; inverting
74HC/HCT540
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: bus driver
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
SYMBOL PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max. min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
A
n
to Y
n
30
11
9
52
19
15
61
22
18
14
5
4
100
20
17
160
32
27
160
32
27
60
12
10
125
25
21
200
40
34
200
40
34
75
15
13
150
30
26
240
48
41
240
48
41
90
18
15
ns
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.6
t
PZH
/ t
PZL
3-state output
enable time
OE to Y
n
3-state output
disable time
OE to Y
n
output transition time
ns
Fig.7
t
PHZ
/ t
PLZ
ns
Fig.7
t
THL
/ t
TLH
ns
Fig.6
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