ETC HD293487

HD293487
Quadruple Differential Line Drivers With 3 State Outputs
ADE-205-585 (Z)
1st. Edition
Dec. 2000
Description
The HD293487 features line drivers which satisfy the requirements of EIA RS-422 A. This device is
designde to provide differential signals with high current capability on bus lines. When the enable input is
low, the associated outputs are in a high impedance state. The output circuit has active pull up and pull
down and is capable of sinking and sourcing 48 mA.
Logic Diagram
1A
1Y
1Z
1,2 Output
Enable
2A
3A
2Y
2Z
3Y
3Z
3,4 Output
Enable
4A
4Y
4Z
HD293487
Pin Arrangement
1A 1
16 VCC
1Y 2
15 4A
1Z 3
14 4Y
1,2 Output
Enable
13 4Z
4
3,4 Output
2Z 5
12
2Y 6
11 3Z
2A 7
10 3Y
GND 8
9 3A
Enable
(Top view)
Function Table
Input A
Output Enable
Output
Y
Z
H
H
H
L
L
H
L
H
X
L
Z
Z
H
L
X
Z
2
:
:
:
:
High level
Low level
Irrelevant
High inpedance (Off state)
HD293487
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply Voltage
VCC
7.0
V
Input Voltage
VIN
5.5
V
DP
1000
mW
FP
785
Power Dissipation
PT*
1
Operating Temperature
Topr
0 to + 70
°C
Storage Temperature
Tstg
–65 to + 150
°C
Notes: 1. The above data were taken by the ∆VEB method mounting on a glass epoxy board (40 × 40 × 1.6
mm) of 10% wiring density.
2. 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
Symbol
Min
Typ
Max
Unit
Supply Voltage
VCC
4.75
5.00
5.25
V
Output Current
I OH
—
—
–48
mA
I OL
—
—
48
Topr
0
25
70
Operating Temperature
°C
3
HD293487
Electrical Characteristics (Ta = 0 to +70°C)
Item
Symbol
Min
Typ*1 Max
Unit
Input Voltage
VIH
2.0
—
—
V
VIL
—
—
0.8
Input Clamp Voltage
VIK
—
—
–1.5
V
VCC = 4.75 V, II = –18 mA
Output Voltage
VOH
2.5
—
—
V
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V, IOH = –20 mA
2.0
—
—
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V, IOH = –48 mA
VOL
—
—
0.5
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V, IOL = 48 mA
|VOD|
2.0
—
—
RL = 100 Ω*2
∆ |VOD|
—
—
±0.4
VOC
—
—
3.0
∆ |VOC|
—
—
±0.4
IO
—
—
100
—
—
–100
VCC = 0 V, VO = –0.25 V
—
—
100
Output Enables = 0.8 V, VO = 2.7 V
—
—
–100
Output Enables = 0.8 V, VO = 0.5 V
II
—
—
100
I IH
—
—
50
VI = 2.7 V
I IL
—
—
–400
VI = 0.5 V
Short Circuit Output Current I OS
–40
—
–140 mA
VI = 2.0 V
Supply Current
—
—
105
All Input GND without load
—
—
85
Output Current
I OZ
Input Current
I CC
µA
µA
mA
Conditions
VCC = 0 V , VO = 6 V
VI = 5.5 V
Output Enable = 2 V
Notes: 1. All typical values are at V CC = 5 V, Ta = 25°C.
2. ∆ |VOD| or ∆ |V OC | denote the difference of VOD or VOC when input voltage is changed from “H” to
“L”.
50 Ω
VOD
50 Ω
4
VOC
HD293487
Switching Characteristics (VCC = 5 V, Ta = 25°C)
Item
Symbol
Min
Typ
Max
Unit
Conditions
Propagation Delay Time
t PLH
—
—
20
ns
CL = 15 pF
t PHL
—
—
20
Output to Output Skew
—
—
6
ns
Differential Output Transition Time t TD
—
—
20
ns
CL =15 pF, RL =100 Ω
Output Enable Time
t ZH
—
—
30
ns
CL = 50 pF
t ZL
—
—
30
t HZ
—
—
25
t LZ
—
—
25
Output Disable Time
ns
Switching Time Test Method
Test Circuit 1
Enable
3V
5V
Input
Pulse Generator
PRR = 1MHZ
Duty Cycle 50%
Zout = 50 Ω
Notes:
1.
2.
Output
A
R L=
200 Ω
Y
Z
C L=
15 pF
CL = 15 pF includes probe and jig capacitance.
All diodes are 1S2074(H)
5
HD293487
Waveforms
tr
tf
2.7 V
1.5 V
Input A
3V
2.7 V
1.5 V
0.3 V
0.3 V
t PLH
0V
t PHL
VOH
Output Y
1.5 V
1.5 V
skew
skew
VOL
t PLH
t PHL
VOH
1.5 V
Output Z
1.5 V
VOL
Test Circuit 2
Enable
3V
Input
Pulse Generator
PRR = 1MHz
Duty Cycle 50%
Zout = 50 Ω
A
Y
C L=
15 pF
6
1.
R L=
100 Ω
Z
C L=
15 pF
Note:
Output Test
CL =15 pF includes probe and jig capacitance.
Output Test
HD293487
Waveforms
tr
tf
2.7 V
Input A
3V
2.7 V
0.3 V
0.3 V
t TD
0V
t TD
90 %
VOH
90 %
Output Y
10 %
10 %
90 %
90 %
Output Z
10 %
VOL
VOH
10 %
VOL
Test Circuit 3
Input Test
Pulse Generator
PRR = 1 MHz
Duty Cycle 50%
Zout = 50 Ω
Enable
5V
Output Test
0 V or 3 V
A
Y
S1
S3
Z
200 Ω
CL =
50 pF
1 kΩ
S2
Notes:
1.
2.
CL = 15 pF includes probe and jig capacitance.
All diodes are 1S2074(H)
7
HD293487
Waveforms
tf
Output
Enable
Input
tr
3V
2.7 V
1.5 V
0.3 V
0V
Output
Enable
Input
t HZ
0.3 V
3V
0V
t ZL
0.5 V
VOH
S1:Closed
S2:Closed
1.5 V
Output
1.5 V
Output
t LZ
1.5 V
S1:Closed
0.5 V S2:Closed
VOL
8
2.7 V
1.5 V
VOH
S1:Closed
S2:Open
VOL
t ZH
1.5 V
VOH
S1:Open
S2:Closed
VOL
HD293487
Package Dimensions
Unit: mm
19.20
20.00 Max
6.30
9
1
7.40 Max
16
8
1.3
0.48 ± 0.10
2.54 Min 5.06 Max
2.54 ± 0.25
0.51 Min
1.11 Max
7.62
+ 0.13
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
DP-16
Conforms
Conforms
1.07 g
9
HD293487
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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Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
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:
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Copyright  Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.
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