m74hct367 STMicroelectronics, m74hct367 Datasheet - Page 5

• Manufacturer Part Number: m74hct367
• Description: Hex Bus Buffer 3-state Hct367 Noninverting, Hct368 Inverting
• Manufacturer: STMicroelectronics

AC ELECTRICAL CHARACTERISTICS (C
(*) C
(Refer to Test Circuit). Average operting current can be obtained by the following equation. I
TEST CIRCUIT I
Symbol
C
* INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF
SWITCHING CHARACTERISTICS TEST.
t
t
t
t
t
t
t
t
PD
t
t
C
TLH
THL
PLH
PHL
PLH
PHL
PZH
PHZ
PZL
PLZ
PD
IN
(*)
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
Output Transition
Time
Propagation
Delay Time
(for HCT367 only)
Propagation
Delay Time
(for HCT368 only)
Output Enable
Time
Output Disable
Time
Input Capacitance
Power Dissipation
Capacitance
Parameter
CC
(Opr.)
V
(V)
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
CC
Test Conditions
(pF)
150
150
150
C
50
50
50
50
50
L
fot HCT367
for HCT368
L
= 50 pF, Input t
Min.
54HC and 74HC
T
C
A
PD
Typ.
= 25
14
18
15
19
16
20
18
47
55
7
5
C
formula by using the measured value of
I
In determining the typical value of C
relatively high frequency of 1 MHz was ap-
plied to f
caused by the quiescent supply current.
CALCULATION
CC
PD
o
(opr.) in the test circuit opposite.
C
is to be calculated with the following
Max.
12
22
28
24
30
25
31
25
10
CC
r
(opr) = C
IN
= t
, in order to eliminate any error
Value
f
-40 to 85
Min.
C
= 6 ns)
PD
PD
74HC
V
=
CC
M54/M74HCT367/368
Max.
I
f
15
28
35
30
38
31
39
31
10
CC
IN
o
f
C
IN
+ I
opr
V
-55 to 125
CC
Min.
CC
/6 (per Channel)
54HC
Max.
18
33
42
36
45
38
47
38
10
o
C
PD
, a
Unit
pF
pF
ns
ns
ns
ns
ns
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