74lv257 NXP Semiconductors, 74lv257 Datasheet - Page 6

• Manufacturer Part Number: 74lv257
• Description: Quad 2-input Multiplexer 3-state
• Manufacturer: NXP Semiconductors

1. Unless otherwise stated, all typical values are measured at T
2. Typical values are measured at V
Philips Semiconductors
AC CHARACTERISTICS
GND = 0V; t
NOTES:
AC WAVEFORMS
V
V
V
V
V
V
V
output load.
1998 May 20
Figure 1. Input (S, nl
SYMBOL
M
M
X
X
Y
Y
OL
t
t
t
t
t
t
t
t
PHL/
PHL/
PHL/
PZH/
PZH/
PHZ/
Quad 2-input multiplexer (3-State)
= V
= V
= V
= V
= 0.5
= 1.5 V at V
and V
nY OUTPUT
/
/
S, nI
t
t
t
t
t
t
t
t
OL
OL
OH
OH
PLH
PLH
PLH
PZL
PZL
PLZ
INPUTS
+ 0.3 V at V
+ 0.1 V
0
OH
– 0.3 V at V
– 0.1
, nI
V
GND
V
V
V
r
CC
CC
OH
OL
1
= t
are the typical output voltage drop that occur with the
Propagation delay
nl
nl
nl
Propagation delay
S to nY
3-State output enable time
OE to nY
3-State output disable time
OE to nY
CC
at V
f
0
0
1
V
to nY
to nY
to nY
CC
t
2.5ns; C
CC
PHL
CC
2.7 V
g
CC
at V
PARAMETER
CC
at V
0
2.7 V
, nl
CC
2.7 V
CC
2.7V
L
V
1
= 50pF; R
M
) to output (nY) propagation delays.
2.7 V
2.7 V
y
V
M
CC
L
= 3.3 V.
= 1K
WAVEFORM
Figure 1
Figure 1
Figure 1
Figure 1
Figure 2
Figure 2
Figure 2
Figure 2
t
SV00641
PLH
amb
CONDITION
CONDITION
= 25 C
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
V
6
CC
1.2
2.0
2.7
1.2
2.0
2.7
1.2
2.0
2.7
1.2
2.0
2.7
(V)
HIGH-to-OFF
OFF-to-HIGH
LOW-to-OFF
OFF-to-LOW
OE INPUT
OUTPUT
OUTPUT
GND
GND
V
V
V
CC
OH
OL
Figure 2. 3-State enable and disable times.
V
I
MIN
–40 to +85 C
enabled
outputs
V
TYP
M
t
12
16
11
14
PLZ
65
22
16
85
29
21
60
20
15
65
24
18
t
PHZ
2
2
2
2
1
LIMITS
V
X
MAX
V
43
31
25
56
41
33
39
29
23
40
32
26
Y
disabled
outputs
–40 to +125 C
MIN
t
Product specification
PZL
t
PZH
74LV257
MAX
51
38
30
66
49
39
46
34
27
49
37
30
V
M
V
M
SV00642
enabled
outputs
UNIT
ns
ns
ns
ns
ns
ns
ns
ns