74AC541 STMicroelectronics, 74AC541 Datasheet - Page 4

• Manufacturer Part Number: 74AC541
• Description: OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
• Manufacturer: STMicroelectronics

74AC541
AC ELECTRICAL CHARACTERISTICS (C
(*) Voltage range is 3.3V 0.3V
(**) Voltage range is 5V 0.5V
TEST CIRCUIT
C
R
R
4/8
CAPACITIVE CHARACTERISTICS
1) C
Test Circuit). Average operating current can be obtained by the following equation. I
Symb ol
t
t
t
Symbo l
PLH
PZL
PZH
L
L
T
= 50 pF or equivalent (includes jigand probe capacitance)
= R
= Z
C
t
t
t
t
t
t
C
PD
PLH
PHL
PZH
PHZ
C
PZL
PLZ
, t
OUT
, t
, t
PD
OUT
1
IN
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to
PLZ
= 500 orequivalent
PHL
PHZ
of pulse generator (typically 50 )
Propagation Delay Time
Output Enable Time
Output Disable Time
Input Capacitance
Output Capacitance
Power Dissipation
Capacitance (note 1)
Parameter
Parameter
T EST
5.0
5.0
5.0
V
3.3
3.3
3.3
V
(V)
(V)
5.0
5.0
5.0
CC
CC
(**)
(**)
(**)
(*)
(*)
(*)
Test Con dition s
T est Con ditio n
L
= 50 pF, R
L
CC
= 500 , Input t
(opr) = C
Min.
Min.
PD
1.5
1.5
1.5
1.5
1.5
1.5
V
T
T
CC
A
A
= 25
T yp.
T yp.
= 25
f
IN
21
5
4
7
5
7
6
r
4
8
+ I
= t
CC
o
o
/8 (per circuit)
f
C
Valu e
C
Value
Max.
Max.
=3 ns)
10.5
10.5
6.5
8
8
9
SW IT CH
-40 to 85
-40 to 85
Min.
Min.
Open
Open
2V
1.5
1.5
1.5
1.5
1.5
1.5
CC
Max.
Max.
11.5
11.5
8.5
9.5
7
9
o
o
C
C
Un it
Unit
ns
ns
ns
pF
pF
pF