Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
DC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= 25°C
T
amb
= 0°C to +70°C
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
MIN
–0.2
TYP
MAX
MIN
V –0.2
CC
MAX
V
V
V
V
= Min to Max; I = –50µA
V
CC
V
CC
V
V
V
CC
CC
CC
CC
OH
An
High-level
= 3.0V; I = –4mA
2.4
2.4
V
OH
OH
Bn or Yn
= 3.0V; I = 14mA
2.2
2.4
2.1
OH
= Min to Max; I = 50µA;
OL
0.2
0.2
V
V = V or V
I
IL
IH
An
Low-level
output voltage
V
OL
V
CC
V
CC
V
CC
V
CC
V
CC
= 3.0V; I = 4mA; V = V or V
IH
0.4
0.8
0.8
0.4
0.9
0.8
V
V
OL
I
IL
Bn or Yn
= 3.0V; I = –14mA; V = V or V
OL I IL IH
V
IH
High-level input voltage
Low-level input voltage
Input Hysteresis
= Min to Max
V
IL
= Min to Max
= 3.3V
2.0
38
2.0
0.3
V
HYS
0.4
45
V
B/Y side Output
Impedance
R
See Figure 2
V = 3.6V; V = V or GND;
CC
53
35
55
Ω
D
Input leakage current
(A5-A7 DIR, HD)
O
CC
I
I
±1.0
±5.0
µA
µA
µA
µA
µA
Not for I/O pins
Input current for common
I/O pins
I
/I
V
CC
V
CC
V
CC
V
CC
= 3.6V;V = 5.5V or GND
"0.1 "15
IHZ ILZ
I
B/Y Side Power-off
leakage current
I
= 0.0V; V = 0 to 5.5V
±10
5
±100
20
OFF
OZH
O
3-State output High
current Yn
I
= 3.6V; V = V ; V = V or V
O CC I IL IH
3-State output Low
current Yn
I
= 3.6V; V = GND; V = V or V
IH
–5
–20
OZL
O
I
IL
I
+I
current (A1 – A4, Bn)
current (A1 – A4, Bn)
V
V
= 3.6V; V = V
CC
5
25
µA
µA
IH OZH
CC
I/O
I +I
= 3.6V; V = GND
–5
–25
IL OZL
CC
I/O
Quiescent Supply
Current
I
V
CC
= 3.6V; I = 0; V = GND or V
CC
5
10
50
µA
CC
O
I
AC CHARACTERISTICS
GND = 0V, t = t = 3.0ns, C = 50pF, R = 500Ω
R
F
L
L
LIMITS
T
V
= 25°C
= 3.3V
T
V
= 0 to + 70°C
= Min to Max
amb
CC
amb
CC
SYMBOL
PARAMETER
WAVEFORM
UNIT
MIN
TYP
0.2
MAX
MIN
MAX
SR
B-Side Slew Rate
4
5
0.05
0.35
0.05
0.4
V/ns
ns
t
t
Propagation delay
A toY or A to B
6.0
6.0
12.6
12.4
18.0
18.0
5.0
5.0
19.5
20.0
PLH
PHL
t
t
Propagation delay
B to A
1.5
1.5
5.5
5.6
7.9
7.6
1.5
1.5
9.5
9.0
PLH
PHL
1
2
2
2
2
2
2
ns
ns
ns
ns
ns
ns
ns
t
t
Output enable/disable time to/from High level
HD to Y or HD to B
4.0
2.0
12.0
6.5
16.0
9.1
4.0
2.0
20.0
11.0
PZH
PHZ
t
t
Output enable/disable time to/from Low level
A to Y or A to B
5.0
1.5
12.7
5.0
16.3
7.1
5.0
1.5
20.0
9.0
PZL
PLZ
t
t
Output enable time
from DIR to B
8.0
8.0
12.3
12.7
18.0
18.0
4.0
4.0
20.0
20.0
PZH
PZL
t
t
Output disable time
from DIR to B
5.0
6.0
8.9
9.1
12.5
12.0
2.0
2.0
14.5
14.0
PHZ
PLZ
t
t
Output enable time
from DIR to A
3.5
4.0
6.9
8.6
13.0
14.0
3.0
3.0
14.5
16.0
PZH
PZL
t
t
Output disable
from DIR to A
2.5
2.5
3.7
3.7
5.5
5.0
2.0
2.0
6.0
5.5
PHZ
PLZ
4
1995 Nov 10