HD74AC125/HD74ACT125
Quad Buffer/Line Driver with 3-State Output
REJ03D0246–0200Z
(Previous ADE-205-366 (Z))
Rev.2.00
Jul.16.2004
Description
The HD74AC125/HD74ACT125 is an quad buffer and line driver designed to be employed as a memory address driver,
clock driver and bus oriented transmitter/receiver which provides improved PC board density.
Features
•
3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
•
Outputs Source/Sink 24 mA
•
HD74ACT125 has TTL-Compatible Inputs
•
Ordering Information: Ex. HD74AC125
Part Name
HD74AC125P
HD74AC125FPEL
HD74AC125RPEL
HD74AC125TELL
Package Type
DIP-14 pin
SOP-14 pin (JEITA)
SOP-14 pin (JEDEC)
TSSOP-14 pin
Package Code Package Abbreviation Taping Abbreviation (Quantity)
DP-14, -14AV
FP-14DAV
FP-14DNV
TTP-14DV
P
FP
RP
T
—
EL (2,000 pcs/reel)
EL (2,500 pcs/reel)
ELL (2,000 pcs/reel)
Notes: 1. Please consult the sales office for the above package availability.
2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of
the package code.
Pin Arrangement
E
1
D 2
O 3
E
4
D 5
O 6
GND 7
(Top view)
14 V
CC
13
E
12 D
11 O
10
E
9 D
8 O
Rev.2.00, Jul.16.2004, page 1 of 8
HD74AC125/HD74ACT125
Logic Symbol
D
O
E
Pin Names
D
E
O
Data Inputs
3-State Output Enable Inputs (Active Low)
Outputs
Truth Table
Inputs
E
L
L
H
H
L
X
Z
:
:
:
:
High Voltage Level
Low Voltage Level
Immaterial
High Impedance
L
H
X
D
L
H
Z
Output
Absolute Maximum Ratings
Item
Supply voltage
DC input diode current
DC input voltage
DC output diode current
DC output voltage
DC output source or sink current
DC V
CC
or ground current per output pin
Storage temperature
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
, I
GND
Tstg
Ratings
–0.5 to 7
–20
20
–0.5 to Vcc+0.5
–50
50
–0.5 to Vcc+0.5
±50
±50
–65 to +150
Unit
V
mA
mA
V
mA
mA
V
mA
mA
°C
Condition
V
I
= –0.5V
V
I
= Vcc+0.5V
V
O
= –0.5V
V
O
= Vcc+0.5V
Recommended Operating Conditions: HD74AC125
Item
Supply voltage
Input and Output voltage
Operating temperature
Input rise and fall time
(except Schmitt inputs)
V
IN
30% to 70% V
CC
Symbol
V
CC
V
I
, V
O
Ta
tr, tf
2 to 6
0 to V
CC
–40 to +85
8
Ratings
V
V
°C
ns/V
V
CC
= 3.0V
V
CC
= 4.5 V
V
CC
= 5.5 V
Unit
Condition
Rev.2.00, Jul.16.2004, page 2 of 8
HD74AC125/HD74ACT125
DC Characteristics: HD74AC125
Item
Sym-
bol
V
IH
Vcc
(V)
3.0
4.5
5.5
V
IL
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
V
OL
5.5
3.0
4.5
5.5
3.0
4.5
Input leakage
current
3 State current
I
IN
I
OZ
5.5
5.5
5.5
min.
2.1
3.15
3.85
—
—
—
2.9
4.4
5.4
2.58
3.94
4.94
—
—
—
—
—
—
—
—
Ta = 25°C
°
typ.
1.5
2.25
2.75
1.50
2.25
2.75
2.99
4.49
5.49
—
—
—
0.002
0.001
0.001
—
—
—
—
—
max.
—
—
—
0.9
1.35
1.65
—
—
—
—
—
—
0.1
0.1
0.1
0.32
0.32
0.32
±0.1
±0.5
Ta = –40 to
+85°C
°
min.
2.1
3.15
3.85
—
—
—
2.9
4.4
5.4
2.48
3.80
4.80
—
—
—
—
—
—
—
—
max.
—
—
—
0.9
1.35
1.65
—
—
—
—
—
—
0.1
0.1
0.1
0.37
0.37
0.37
±1.0
±5.0
µA
µA
V
V
OUT
= 0.1 V or V
CC
–0.1 V
Unit
Condition
Input Voltage
V
V
OUT
= 0.1 V or V
CC
–0.1 V
Output voltage
V
OH
V
IN
= V
IL
or V
IH
I
OUT
= –50
µA
V
IN
= V
IL
or V
IH
I
OH
= –12 mA
I
OH
= –24 mA
I
OH
= –24 mA
V
IN
= V
IL
or V
IH
I
OUT
= 50
µA
V
IN
= V
IL
or V
IH
I
OL
= 12 mA
I
OL
= 24 mA
I
OL
= 24 mA
V
IN
= V
CC
or GND
V
IN(OE)
= V
IL
, V
IH
V
IN
= V
CC
or GND
V
OUT
= V
CC
or GND
V
OLD
= 1.1 V
V
OHD
= 3.85 V
V
IN
= V
CC
or ground
Dynamic output
current*
Quiescent supply
current
I
OLD
I
OHD
I
CC
5.5
5.5
5.5
—
—
—
—
—
—
—
—
8.0
86
–75
—
—
—
80
mA
mA
µA
*Maximum
test duration 2.0 ms, one output loaded at a time.
Recommended Operating Conditions: HD74ACT125
Item
Supply voltage
Input and output voltage
Operating temperature
Input rise and fall time
(except Schmitt inputs)
V
IN
0.8 to 2.0 V
Symbol
V
CC
V
I
, V
O
Ta
tr, tf
Ratings
2 to 6
0 to V
CC
–40 to +85
8
V
V
°C
ns/V
V
CC
= 4.5V
V
CC
= 5.5V
Unit
Condition
Rev.2.00, Jul.16.2004, page 3 of 8
HD74AC125/HD74ACT125
DC Characteristics: HD74ACT125
Item
Sym-
bol
V
IH
V
IL
Output voltage
V
OH
V
CC
(V)
4.5
5.5
4.5
5.5
4.5
5.5
4.5
V
OL
5.5
4.5
5.5
4.5
Input current
3 State current
I
CC
/input current
Dynamic output
current*
Quiescent supply
current
I
IN
I
OZ
I
CCT
I
OLD
I
OHD
I
CC
5.5
5.5
5.5
5.5
5.5
5.5
5.5
min.
2.0
2.0
—
—
4.4
5.4
3.94
4.94
—
—
—
—
—
—
—
—
—
—
Ta = 25°C
°
typ.
1.5
1.5
1.5
1.5
4.49
5.49
—
—
0.001
0.001
—
—
—
—
0.6
—
—
—
max.
—
—
0.8
0.8
—
—
—
—
0.1
0.1
0.32
0.32
±0.1
±0.5
—
—
—
8.0
Ta = –40 to
+85°C
°
min.
2.0
2.0
—
—
4.4
5.4
3.80
4.80
—
—
—
—
—
—
—
86
–75
—
max.
—
—
0.8
0.8
—
—
—
—
0.1
0.1
0.37
0.37
±1.0
±5.0
1.5
—
—
80
µA
µA
mA
mA
mA
µA
V
Unit
Condition
Input voltage
V
V
OUT
= 0.1 V or V
CC
–0.1 V
V
OUT
= 0.1 V or V
CC
–0.1 V
V
IN
= V
IL
or V
IH
I
OUT
= –50
µA
V
IN
= V
IL
V
IN
= V
IL
or V
IH
I
OUT
= 50
µA
V
IN
= V
IL
V
IN
= V
CC
or GND
V
IN
= V
IL
, V
IH
V
OUT
= V
CC
or GND
V
IN
= V
CC
–2.1 V
V
OLD
= 1.1 V
V
OHD
= 3.85 V
V
IN
= V
CC
or ground
I
OL
= 24 mA
I
OL
= 24 mA
I
OH
= –24 mA
I
OH
= –24 mA
*Maximum
test duration 2.0 ms, one output loaded at a time.
AC Characteristics: HD74AC125
Ta = +25°C
C
L
= 50 pF
Min
Typ
Max
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
6.5
5.5
6.5
5.0
6.0
5.0
7.5
5.5
7.0
6.5
7.5
6.5
9.0
7.0
9.0
7.0
10.5
7.0
10.0
8.0
10.0
9.0
10.5
9.0
Ta = –40°C to +85°C
C
L
= 50 pF
Min
Max
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
10.0
7.5
10.0
7.5
11.0
8.0
11.0
8.5
10.5
9.5
11.5
9.5
ns
Item
Propagation delay
Propagation delay
Enable time
Enable time
Disable time
Disable time
Note:
Symbol
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
V
CC
(V)*
1
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
Unit
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
Rev.2.00, Jul.16.2004, page 4 of 8
HD74AC125/HD74ACT125
AC Characteristics: HD74ACT125
Ta = +25°C
C
L
= 50 pF
Item
Propagation delay
Propagation delay
Enable time
Enable time
Disable time
Disable time
Note:
Symbol
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
V
CC
(V)*
1
Min
5.0
1.0
5.0
5.0
5.0
5.0
5.0
1.0
1.0
1.0
1.0
1.0
Typ
6.5
7.0
6.0
7.0
7.0
7.5
Max
9.0
9.0
8.5
9.5
9.5
10.0
Ta = –40°C to +85°C
C
L
= 50 pF
Min
1.0
1.0
1.0
1.0
1.0
1.0
Max
10.0
10.0
9.5
10.5
10.5
10.5
Unit
ns
1. Voltage Range 5.0 is 5.0 V ± 0.5 V
Capacitance
Item
Input capacitance
Power dissipation capacitance
Symbol
C
IN
C
PD
4.5
45.0
Typ
pF
pF
Unit
V
CC
= 5.5 V
V
CC
= 5.0 V
Condition
Rev.2.00, Jul.16.2004, page 5 of 8
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