參數(shù)資料
型號(hào): HCT652
廠(chǎng)商: NXP Semiconductors N.V.
英文描述: Octal bus transceiver/register; 3-state
中文描述: 八路總線(xiàn)收發(fā)器/冊(cè);三態(tài)
文件頁(yè)數(shù): 7/10頁(yè)
文件大小: 104K
代理商: HCT652
September 1993
7
Philips Semiconductors
Product specification
Octal bus transceiver/register; 3-state
74HC/HCT652
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: bus driver
I
CC
category: MSI.
Note to the HCT types
The value of additional quiescent supply current (
I
CC
) for unit a load of 1 is given in the family specifications.
To determine
I
CC
per input, multiply this value by the unit load coefficient shown in the table below
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF.
INPUT
UNIT LOAD COEFFICIENT
S
AB
, S
BA
A
0
to A
7
and B
0
to B
7
CP
AB
, CP
BA
OE
AB
OE
BA
0.75
0.75
1.50
1.50
1.50
INPUT
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
+
25
40 to
+
85
40 to
+
125
V
CC
(V)
WAVEFORMS
MIN.
TYP.
MAX.
MIN. MAX. MIN.
34
MAX.
t
PHL
/t
PLH
propagation delay
A
n
, B
n
to B
n
, A
n
propagation delay
CP
AB
, CP
BA
to B
n
, A
n
propagation delay
S
AB
, S
BA
to B
n
, A
n
3-state output enable
time
OE
AB
, OE
BA
to A
n
, B
n
3-state output disable
time
OE
AB
, OE
BA
to A
n
, B
n
output transition time
16
27
41
ns
4.5
Fig.6
t
PHL
/t
PLH
23
39
49
59
ns
4.5
Fig.7
t
PHL
/t
PLH
27
46
55
66
ns
4.5
Fig.8
t
PZH
/t
PZL
18
33
41
50
ns
4.5
Fig.9
t
PHZ
/t
PLZ
16
35
44
53
ns
4.5
Fig.9
t
THL
/t
TLH
5
12
15
18
ns
4.5
Fig.6, 8
t
W
clock pulse width
HIGH or LOW
CP
AB
or CP
BA
set-up time
A
n
, B
n
to CP
AB
, CP
BA
hold time
A
n
, B
n
to CP
AB
, CP
BA
maximum clock pulse
frequency
16
6
20
24
ns
4.5
Fig.7
t
su
10
5
13
15
ns
4.5
Fig.7
t
h
5
2
6
8
ns
4.5
Fig.7
f
max
30
83
24
20
MHz
4.5
Fig.7
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