參數(shù)資料
型號: 74LVC541A
廠商: NXP Semiconductors N.V.
英文描述: Octal Transparent D-Type Latches With 3-State Outputs 20-SSOP -40 to 85
中文描述: 八路緩沖器/線路驅(qū)動器5伏耐輸入/輸出三態(tài)
文件頁數(shù): 6/10頁
文件大?。?/td> 94K
代理商: 74LVC541A
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
6
AC WAVEFORMS
V
M
= 1.5 V at V
CC
V
M
= 0.5 V
CC
at V
CC
< 2.7 V
V
X
= V
OL
+ 0.3 V at V
CC
2.7 V
V
X
= V
OL
+ 0.1
V
CC
at V
CC
< 2.7 V
V
Y
= V
OH
– 0.3 V at V
CC
2.7 V
V
Y
= V
OH
– 0.1
V
CC
at V
CC
< 2.7 V
V
OL
and V
OH
are the typical output voltage drop that occur with the
output load.
2.7 V
SV00700
V
M
An INPUT
Yn OUTPUT
V
M
t
PLH
t
PHL
GND
V
OL
V
I
V
OH
Figure 1. Input (A
n
) to output (Y
n
) propagation delays.
SV00685
outputs
disabled
outputs
enabled
outputs
enabled
t
PHZ
t
PZH
t
PZL
t
PLZ
OUTPUT
HIGH-to-OFF
OFF–to-HIGH
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
M
V
M
OE
n
INPUT
V
X
V
OL
V
OH
V
Y
GND
GND
V
CC
V
I
V
M
Figure 2. 3-state enable and disable times.
TEST CIRCUIT
PULSE
GENERATOR
V
I
R
T
D.U.T.
V
O
C
L
50pF
S
1
2 x V
CC
Open
GND
500
500
V
CC
V
I
2.7V
V
CC
2.7V
2.7V – 3.6V
Test
S
1
GND
t
PLZ
/t
PZL
t
PHZ
/t
PZH
2 x V
CC
t
PLH
/t
PHL
Open
SY00003
V
CC
Figure 3. Load circuitry for switching times.
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