ETC HD74AC125/HD74ACT125

HD74AC125/HD74ACT125
Quad Buffer/Line Driver with 3-State Output
ADE-205-366 (Z)
1st. Edition
Sep. 2000
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
Pin Arrangement
E 1
14 VCC
D 2
13 E
O 3
12 D
E 4
11 O
D 5
10 E
O 6
9 D
GND 7
8 O
(Top view)
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
D
Output
L
L
L
L
H
H
X
Z
H
H
L
X
Z
:
:
:
:
High Voltage Level
Low Voltage Level
Immaterial
High Impedance
DC Characteristics (unless otherwise specified)
Item
Symbol
Max
Unit
Condition
Maximum quiescent supply current
I CC
80
µA
VIN = VCC or ground, VCC = 5.5 V,
Ta = Worst case
Maximum quiescent supply current
I CC
8.0
µA
VIN = VCC or ground, VCC = 5.5 V,
Ta = 25°C
Maximum ICC/input (HD74ACT125)
I CCT
1.5
mA
VIN = VCC – 2.1 V, VCC = 5.5 V
Ta = Worst case
2
HD74AC125/HD74ACT125
AC Characteristics: HD74AC125
Ta = +25°C
CL = 50 pF
Ta = –40°C to +85°C
CL = 50 pF
Item
Symbol
VCC (V)*1
Min
Typ
Max
Min
Max
Unit
Propagation delay
t PLH
3.3
1.0
6.5
9.0
1.0
10.0
ns
5.0
1.0
5.5
7.0
1.0
7.5
3.3
1.0
6.5
9.0
1.0
10.0
5.0
1.0
5.0
7.0
1.0
7.5
3.3
1.0
6.0
10.5
1.0
11.0
5.0
1.0
5.0
7.0
1.0
8.0
3.3
1.0
7.5
10.0
1.0
11.0
5.0
1.0
5.5
8.0
1.0
8.5
3.3
1.0
7.0
10.0
1.0
10.5
5.0
1.0
6.5
9.0
1.0
9.5
3.3
1.0
7.5
10.5
1.0
11.5
5.0
1.0
6.5
9.0
1.0
9.5
Propagation delay
Enable time
Enable time
Disable time
Disable time
Note:
t PHL
t ZH
t ZL
t HZ
t LZ
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
AC Characteristics: HD74ACT125
Ta = +25°C
CL = 50 pF
Ta = –40°C to +85°C
CL = 50 pF
Item
Symbol
VCC (V)*1
Min
Typ
Max
Min
Max
Unit
Propagation delay
t PLH
5.0
1.0
6.5
9.0
1.0
10.0
ns
Propagation delay
t PHL
5.0
1.0
7.0
9.0
1.0
10.0
Enable time
t ZH
5.0
1.0
6.0
8.5
1.0
9.5
Enable time
t ZL
5.0
1.0
7.0
9.5
1.0
10.5
Disable time
t HZ
5.0
1.0
7.0
9.5
1.0
10.5
Disable time
t LZ
5.0
1.0
7.5
10.0
1.0
10.5
Note:
1. Voltage Range 5.0 is 5.0 V ± 0.5 V
Capacitance
Item
Symbol
Typ
Unit
Condition
Input capacitance
CIN
4.5
pF
VCC = 5.5 V
Power dissipation capacitance
CPD
45.0
pF
VCC = 5.0 V
3
HD74AC125/HD74ACT125
Package Dimensions
Unit: mm
19.20
20.32 Max
8
6.30
7.40 Max
14
1.30
7
2.54 ± 0.25
0.48 ± 0.10
0.51 Min
2.39 Max
7.62
2.54 Min 5.06 Max
1
+ 0.10
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
DP-14
Conforms
Conforms
0.97 g
Unit: mm
10.06
10.5 Max
8
5.5
14
1
0.10 ± 0.10
1.42 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
7
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
4
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-14DA
—
Conforms
0.23 g
HD74AC125/HD74ACT125
Unit: mm
8.65
9.05 Max
8
1
7
*0.20 ± 0.05
0.635 Max
1.75 Max
3.95
14
+ 0.10
6.10 – 0.30
1.08
0.11
0.14 +– 0.04
0° – 8°
1.27
*0.40 ± 0.06
+ 0.67
0.60 – 0.20
0.15
0.25 M
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
*Pd plating
FP-14DN
Conforms
Conforms
0.13 g
Unit: mm
4.40
5.00
5.30 Max
14
8
1
7
0.65
1.0
0.13 M
6.40 ± 0.20
0.10
*Dimension including the plating thickness
Base material dimension
*0.17 ± 0.05
0.15 ± 0.04
1.10 Max
0.83 Max
0.07 +0.03
–0.04
*0.22+0.08
–0.07
0.20 ± 0.06
0° – 8°
0.50 ± 0.10
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
TTP-14D
—
—
0.05 g
5
HD74AC125/HD74ACT125
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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