RD74LVC16244B
16-bit Buffers / Line Drivers with 3-state Outputs
REJ03D0527–0100
Rev.1.00
Mar. 14, 2005
Description
The RD74LVC16244B has sixteen line drivers with three state outputs in a 48 pin package. This device is a non
inverting buffer and has two active low enables (1G to 4G). 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
= 1.65 V to 5.5 V
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All outputs V
OUT
(Max.) = 5.5 V (@V
CC
= 0 V or output off state)
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 ±4 mA (@V
CC
= 1.65 V)
±8 mA (@V
CC
= 2.3 V)
±12 mA (@V
CC
= 2.7 V)
±24 mA (@V
CC
= 3.0 V to 5.5 V)
•
Ordering Information
Part Name
RD74LVC16244BTEL
Package Type
TSSOP–48 pin
Package Code
(Previous Code)
PTSP0048KA–A
(TTP–48DBV)
Package
Abbreviation
T
Taping Abbreviation
(Quantity)
EL (1,000 pcs/reel)
Function Table
Inputs
G
H
L
L
H: High level
L: Low level
X: Immaterial
Z: High impedance
A
X
H
L
Output Y
Z
H
L
Rev.1.00 Mar. 14, 2005 page 1 of 8
RD74LVC16244B
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.1.00 Mar. 14, 2005 page 2 of 8
RD74LVC16244B
Absolute Maximum Ratings
Item
Supply voltage
Input diode current
Input voltage
Output diode current
Output voltage
Output current
V
CC
, GND current / pin
Storage temperature
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
or I
GND
Tstg
Ratings
–0.5 to 7.0
–50
–0.5 to 7.0
–50
50
–0.5 to V
CC
+0.5
–0.5 to 7.0
±50
100
–65 to +150
mA
mA
°C
V
Unit
V
mA
V
mA
V
O
= –0.5 V
V
O
= V
CC
+0.5 V
Output "H" or "L"
Output "Z" or V
CC
:OFF
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
Input / Output voltage
Symbol
V
CC
V
I
V
O
Operating temperature
Output current
Ta
I
OH
Ratings
1.5 to 5.5
1.65 to 5.5
0 to 5.5
0 to V
CC
0 to 5.5
–40 to 85
–4
–8
–12
–24
I
OL
4
8
12
24
Input rise / fall time
*1
t
r
, t
f
20
10
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
ns/V
mA
°C
mA
V
CC
= 1.65 V
V
CC
= 2.3 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
V
CC
= 1.65 V
V
CC
= 2.3 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
V
CC
= 1.65 V to 2.7 V
V
CC
= 3.0 V to 5.5 V
V
Unit
V
Conditions
Data hold
At operation
G,
A
Output “H” or “L”
Output “Z” or V
CC
: OFF
Rev.1.00 Mar. 14, 2005 page 3 of 8
RD74LVC16244B
Electrical Characteristics
Ta = –40 to 85°C
Item
Input voltage
Symbol
V
IH
V
CC
(V)
1.65 to 1.95
2.3 to 2.7
2.7 to 3.6
4.5 to 5.5
V
IL
1.65 to 1.95
2.3 to 2.7
2.7 to 3.6
4.5 to 5.5
Output voltage
V
OH
1.65 to 5.5
1.65
2.3
2.7
3.0
3.0
4.5
V
OL
1.65 to 5.5
1.65
2.3
2.7
3.0
4.5
Input current
Output leak current
Off state output
current
Quiescent supply
current
I
IN
I
OFF
I
OZ
I
CC
∆I
CC
0 to 5.5
0
2.7 to 5.5
2.7 to 3.6
2.7 to 5.5
2.7 to 3.6
Min
V
CC
×0.65
1.7
2.0
V
CC
×0.7
—
—
—
—
V
CC
–0.2
1.2
1.7
2.2
2.4
2.2
3.8
—
—
—
—
—
—
—
—
—
—
—
—
Max
—
—
—
—
V
CC
×0.35
0.7
0.8
V
CC
×0.3
—
—
—
—
—
—
—
0.2
0.45
0.7
0.4
0.55
0.55
±5.0
±5.0
±5.0
±10
10
500
µA
µA
µA
µA
µA
V
IN
= 5.5 V or GND
V
IN
/ V
OUT
= 5.5 V
V
IN
= V
CC
or GND
V
O
= 5.5 V or GND
V
IN
= 3.6 V to 5.5 V
V
IN
= V
CC
or GND
V
IN
= one input at
(V
CC
–0.6)V,
other inputs at V
CC
or GND
V
I
OL
= 100 µA
I
OL
= 4 mA
I
OL
= 8 mA
I
OL
= 12 mA
I
OL
= 24 mA
I
OH
= –24 mA
V
I
OH
= –100 µA
I
OH
= –4 mA
I
OH
= –8 mA
I
OH
= –12 mA
V
Unit
V
Test Conditions
Rev.1.00 Mar. 14, 2005 page 4 of 8
RD74LVC16244B
Switching Characteristics
Ta = –40 to 85°C
Item
Propagation delay time
Symbol
t
PLH
t
PHL
V
CC
(V)
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Output enable time
t
ZH
t
ZL
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Output disable time
t
HZ
t
LZ
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Between output pins skew*
1
From
Unit
ns
A
(Input)
Y
To
(Output)
Min
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.0
1.5
1.0
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.0
8.0
Max
10.9
7.9
5.8
5.2
4.0
12.6
9.6
8.2
7.5
5.5
12.1
7.8
7.7
7.0
6.0
—
—
—
1.0
1.0
—
—
ns
G
Y
ns
G
Y
t
OSLH
t
OSHL
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
ns
Input capacitance
Output capacitance
Note:
C
IN
C
O
3.3
3.3
pF
pF
1. This parameter is characterized but not tested.
t
OSLH
= | t
PLHm
– t
PLHn
|, t
OSHL
= | t
PHLm
– t
PHLn
|
Operating Characteristics
Ta = 25°C
Item
Power dissipation
Capacitance
Symbol
C
PD
V
CC
(V)
1.8
2.5
3.3
5.0
Min
—
—
—
—
Typ
25.0
25.0
27.0
32.0
Max
—
—
—
—
Unit
pF
Test conditions
f = 10 MHz
Rev.1.00 Mar. 14, 2005 page 5 of 8
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