參數(shù)資料
型號： 74LV541
廠商： NXP Semiconductors N.V.
英文描述： Octal buffer/line driver 3-State
中文描述： 八路緩沖器/線路驅(qū)動器三態(tài)
文件頁數(shù)： 2/12頁
文件大?。?/td> 113K
代理商： 74LV541
Philips Semiconductors
Product specification
74LV541
Octal buffer/line driver (3-State)
2
1998 Jun 10
853–1937 19545
FEATURES
Optimized for Low Voltage applications: 1.0 to 3.6V
Accepts TTL input levels between V
CC
= 2.7V and V
CC
= 3.6V
Typical V
OLP
(output ground bounce)
T
amb
= 25
°
C
Typical V
OHV
(output V
OH
undershoot)
T
amb
= 25
°
C
Non-inverting outputs
Output capability: bus driver
I
CC
category: MSI
0.8V @ V
CC
= 3.3V,
2V @ V
CC
= 3.3V,
DESCRIPTION
The 74LV541 is a low–voltage CMOS device and is pin and function
compatible with 74HC/HCT541.
The 74LV541 is an octal non-inverting buffer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable
inputs OE
1
and OE
2
.
A HIGH on OEn causes the outputs to assume a high impedance
OFF–state.
QUICK REFERENCE DATA
GND = 0V; T
amb
= 25
°
C; t
r
= t
f
SYMBOL
2.5 ns
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
Propagation delay
A
n
to Y
n
Input capacitance
C
L
= 15pF
V
CC
= 3.3V
10
ns
C
I
C
PD
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W)
P
= C
V
CC2
f
(C
L
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
V
CC2
f
o
) = sum of the outputs.
3.5
pF
Power dissipation capacitance per buffer
V
I
= GND to V
CC
1
37
pF
V
CC2
f
) where:
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic DIL
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
74LV541 N
74LV541 N
SOT146-1
20-Pin Plastic SO
74LV541 D
74L541 D
SOT163-1
20-Pin Plastic SSOP Type II
74LV541 DB
74LV541 DB
SOT339-1
20-Pin Plastic TSSOP Type I
74LV541 PW
74LV541PW DH
SOT360-1
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
1, 19
OE
1
, OE
2
Output enable input (active-LOW)
2, 3, 4, 5,
6, 7, 8, 9
A
0
to A
7
Data inputs
10
GND
Ground (0V)
18, 17, 16, 15,
14, 13, 12, 11
Y
0
to Y
7
Bus outputs
20
V
CC
Positive supply voltage
FUNCTION TABLE
INPUTS
OUTPUT
OE
1
L
OE
2
L
nA
nY
L
L
L
L
H
H
X
H
X
Z
H
X
X
Z
H = HIGH voltage level
L = LOW voltage level
X = Don’t care
Z = High impedance OFF-state
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