HD74LVC16241
16-bit Buffers / Line Drivers with 3-state Outputs
ADE-205-073B(Z)
3rd Edition
November 1995
Description
The HD74LVC16241 has sixteen buffer drivers with three state outputs in a 48 pin package. This device is
a non inverting buffer and has two active low enables (1G, 4G), high enables (2G, 3G). Each enable
independently controls four buffers. Low voltage and high speed operation is suitable at the battery drive
product (note type personal computer) and low power consumption extends the life of a battery for long
time operation.
Features
•
V
CC
= 2.0 V to 5.5 V
•
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
•
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25°C)
•
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25°C)
•
High output current ±24 mA (@V
CC
= 3.0 V to 5.5 V)
Function Table
Inputs
G
H
L
L
H:
L:
X:
Z:
High level
Low level
Immaterial
High impedance
G
L
H
H
A
X
H
L
Output Y
Z
H
L
HD74LVC16241
Pin Arrangement
1G 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
V
CC
7
2Y1 8
2Y2 9
GND 10
2Y3 11
2Y4 12
3Y1 13
3Y2 14
GND 15
3Y3 16
3Y4 17
V
CC
18
4Y1 19
4Y2 20
GND 21
4Y3 22
4Y4 23
4G 24
48 2G
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V
CC
41 2A1
40 2A2
39 GND
38 2A3
37 2A4
36 3A1
35 3A2
34 GND
33 3A3
32 3A4
31 V
CC
30 4A1
29 4A2
28 GND
27 4A3
26 4A4
25 3G
(Top view)
Rev.3, Nov. 1995, page 2 of 8
HD74LVC16241
Absolute Maximum Ratings
Item
Supply voltage range
Input diode current
Input voltage
Output diode current
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
or I
GND
Tstg
Ratings
–0.5 to 6.0
–50
–0.5 to 6.0
–50
50
Output voltage
Output current
V
CC
, GND current / pin
Storage temperature
–0.5 to V
CC
+0.5
±50
100
–65 to +150
Unit
V
mA
V
mA
mA
V
mA
mA
°C
V
O
= –0.5 V
V
O
= V
CC
+0.5 V
V
I
= –0.5 V
Conditions
Note: The absolute maximum ratings are values which must not individually be exceeded, and furthermore,
no two of which may be realized at the same time.
Recommended Operating Conditions
Item
Supply voltage
Symbol
V
CC
V
I
V
O
Operating temperature
Output current
Ta
I
OH
I
OL
Input rise / fall time
*1
t
r
, t
f
Rating
1.5 to 5.5
2.0 to 5.5
Input / output voltage
0 to 5.5
0 to V
CC
–40 to 85
–12
–24
*2
12
24
*2
10
Unit
V
V
V
V
°C
mA
mA
mA
mA
ns/V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
Conditions
Data retention
At operation
G,
G, A
Y
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform : Refer to test circuit of switching characteristics.
2. duty cycle
≤
50%
Rev.3, Nov. 1995, page 3 of 8
HD74LVC16241
Electrical Characteristics
Ta = –40 to 85°C
Item
Input voltage
Symbol V
CC
(V)
V
IH
V
IL
Output voltage
V
OH
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 5.5
2.7
3.0
3.0
4.5
V
OL
2.7 to 5.5
2.7
3.0
4.5
Input current
Off state output current
Quiescent supply current
I
IN
I
OZ
I
CC
∆I
CC
0 to 5.5
5.5
5.5
3.0 to 3.6
Min
2.0
Max
—
Unit
V
V
V
I
OH
= –100
µA
I
OH
= –12 mA
I
OH
= –24 mA
I
OL
= 100
µA
I
OL
= 12 mA
I
OL
= 24 mA
V
IN
= 5.5 V or GND
V
IN
= V
CC
, GND
V
OUT
= V
CC
or GND
V
IN
= V
CC
or GND
V
IN
= one input at(V
CC
–0.6) V,
other inputs at V
CC
or GND
Test Conditions
V
CC
×0.7
—
—
—
0.8
V
CC
×0.3
V
V
V
V
V
V
V
V
V
V
µA
µA
µA
µA
—
—
—
—
0.2
0.4
0.55
0.55
±5.0
±10
40
500
V
CC
–0.2 —
2.2
2.4
2.0
3.8
—
—
—
—
—
—
—
—
Switching Characteristics
Ta = –40 to 85°C
Item
Propagation delay time
Symbol V
CC
(V)
t
PLH
t
PHL
Output enable time
t
ZH
t
ZL
Output disable time
t
HZ
t
LZ
Input capacitance
Output capacitance
C
IN
C
O
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
2.7
Min
—
1.5
—
—
1.5
—
—
1.5
—
—
—
Typ
4.5
3.5
2.5
5.0
4.0
3.0
4.5
4.0
2.5
3.0
15.0
Max
7.5
6.5
5.0
9.0
8.0
7.0
8.5
7.5
7.0
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
G,
G
Y
G,
G
Y
From (Input) To (Output)
A
Y
Rev.3, Nov. 1995, page 4 of 8
HD74LVC16241
Test Circuit
V
CC
V
CC
1G, 2G, 3G, 4G
Input
Output
500
Ω
S1
C
L
=
50 pF
450
Ω
50
Ω
Scope
OPEN
*1
See under table
GND
Pulse Generator
Z
out
= 50
Ω
See function Table
1Y1 to 4Y4
1A1 to 4A4
Symbol
t
PLH
/ t
PHL
t
ZH
/ t
HZ
t
ZL
/ t
LZ
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
OPEN
GND
6V
OPEN
GND
2×Vcc
Note:
1.
C
L
includes probe and jig capacitance.
Rev.3, Nov. 1995, page 5 of 8
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