HD74LV2GT125A
Dual Bus Buffer with 3–state Output
ADE-205-676 (Z)
Rev. 0
Mar. 2002
Description
The HD74LV2GT125A has dual bus buffer with 3–state output in a 8 pin package. Output is disabled
when the associated output enable (OE) input is high. To ensure the high impedance state during power up
or power down,
OE
should be connected to V
CC
through a pull-up resistor; the minimum value of the
resistor is determined by the current sinking capability of the driver. Low voltage and high speed operation
is suitable for the battery powered products (e.g., notebook computers), and the low power consumption
extends the battery life.
Features
•
The basic gate function is lined up as hitachi uni logic series.
•
Supplied on emboss taping for high speed automatic mounting.
•
TTL compatible input level.
Supply voltage range : 4.5 to 5.5 V
Operating temperature range : –40 to +85°C
•
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All outputs V
O
(Max.) = 5.5 V (@V
CC
= 0 V, Output : Z)
•
Output current ±12 mA (@V
CC
= 4.5 V to 5.5 V)
•
All the logical input has hysteresis voltage for the slow transition.
•
Package type
Package type
SSOP-8 pin
Package code
TTP-8DB
Package suffix
US
Taping code
E (3,000 pcs / Reel)
HD74LV2GT125A
Outline and Article Indication
• HD74LV2GT125A
Index band
Lot No.
Y M W
T 2 5
SSOP-8
Type No.
Y : Year code
(the last digit of year)
M : Month code
W : Week code
Function Table
Inputs
OE
L
L
H
H : High level
L : Low level
X : Immaterial
Z : High impedance
A
H
L
X
H
L
Z
Output Y
Rev.0, Mar. 2002, page 2 of 10
HD74LV2GT125A
Pin Arrangement
OE1
1
8
V
CC
A1
2
7
OE2
Y2
3
6
Y1
GND
4
5
A2
(Top view)
Rev.0, Mar. 2002, page 3 of 10
HD74LV2GT125A
Absolute Maximum Ratings
Item
Supply voltage range
Input voltage range
*1
*1, 2
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
or I
GND
P
T
Tstg
Ratings
–0.5 to 7.0
–0.5 to 7.0
–0.5 to V
CC
+ 0.5
–0.5 to 7.0
–20
±50
±25
±50
200
–65 to 150
Unit Test Conditions
V
V
V
mA
mA
mA
mA
mW
°C
Output : H or L
V
CC
: OFF or output : Z
V
I
< 0
V
O
< 0 or V
O
> V
CC
V
O
= 0 to V
CC
Output voltage range
Input clamp current
Output clamp current
Continuous output current
Continuous current through
V
CC
or GND
Maximum power dissipation
*3
at Ta = 25°C (in still air)
Storage temperature
Notes:
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.
1. The input and output voltage ratings may be exceeded if the input and output clamp-current
ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The maximum package power dissipation was calculated using a junction temperature of 150°C.
Recommended Operating Conditions
Item
Supply voltage
Input voltage
Output voltage
Symbol
V
CC
V
IN
V
OUT
T
opr
t
r
, t
f
Ratings
4.5 to 5.5
0 to 5.5
0 to V
CC
0 to 5.5
Operating temperature
Input rise / fall time
–40 to +85
°C
Unit Test Conditions
V
V
V
Output : Z
0 to 20 (V
CC
= 4.5 to 5.5 V) ns
Rev.0, Mar. 2002, page 4 of 10
HD74LV2GT125A
Electrical Characteristics
•
Ta = –40 to 85°C
Item
Input voltage
Symbol V
CC
(V) *
V
IH
V
IL
Hysteresis voltage V
H
Output voltage
V
OH
V
OL
Input current
Off state output
current
Quiescent
supply current
I
IN
I
OZ
I
CC
∆I
CC
Output leakage
current
I
OFF
4.5 to 5.5
4.5 to 5.5
5.0
Min to Max
4.5
Min to Max
4.5
0 to 5.5
Min to Max
5.5
5.5
0
5.0
Min
2.0
—
—
V
CC
–0.1
3.8
—
—
—
—
—
—
—
—
Typ
—
—
0.15
—
—
—
—
—
—
—
—
—
3.0
Max
—
0.8
—
—
—
0.1
0.55
±1
±5
10
1.5
5
—
µA
µA
µA
mA
µA
pF
V
V
V
T
– V
T
+
–
Unit Test condition
V
I
OH
= –50
µA
I
OH
= –12 mA
I
OL
= 50
µA
I
OL
= 12 mA
V
IN
= 5.5 V or GND
V
O
= 5.5 V or GND
V
IN
= V
CC
or GND,
I
O
= 0
One input V
IN
= 3.4 V,
other input V
CC
or GND
V
O
= 5.5 V
V
IN
= V
CC
or GND
Input capacitance C
IN
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
Rev.0, Mar. 2002, page 5 of 10
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