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Customer Support Dept.
April 1, 2003
To all our customers
Cautions
Keep safety first in your circuit designs!
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Remember to give due consideration to safety when making your circuit designs, with appropriate
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contained therein.
HD29C3487
Quadruple Differential Line Drivers With 3 State Outputs
ADE-205-587 (Z)
1st. Edition
Dec. 2000
Description
The HD29C3487 features quadruple differential line drivers which satisfy the requirements of EIA standard
RS-422A. This device is designed to provide differential signals with high current capability on bus lines.
The enable input at low level permits the relate output in high impedance state. The output circuit has
active pull up and pull down and is capable of sinking or sourcing 20 mA.
Features
• TTL input compatibility
• Propagation delay time: 6 ns typ
• Output to output skew: 0.5 ns typ
• High output impedance in power off conditions
• Meets EIA standard RS-422A
• Operates from a single 5 V supply
• Three state outputs
• Low power dissipation with CMOS process
• Power up and power down protection
• Pin to pin compatible with HD293487
HD29C3487
2
Pin Arrangement
(Top view)
2
3
4
5
6
7
1
1A
GND
1Y
1Z
2Z
8
1, 2 Output
Enable
2Y
2A
13
14
15
10
11
12
9
16 VCC
4A
4Y
4Z
3,4 Output
Enable
3Z
3Y
3A
Function Table
Input A Enables Outputs
GY Z
HH H L
LH L H
XL Z Z
H : High level
L : Low level
Z : High impedance
X : Irrelevant
HD29C3487
3
Absolute Maximum Ratings (Ta = 25°C)
Item Symbol Ratings Unit
Supply Voltage*2VCC –0.5 to 7.0 V
Input Voltage VIN –1.5 to VCC + 1.5 V
Output Voltage VOUT –0.5 to VCC + 0.5 V
Power Dissipation PT 500 mW
Storage Temperature Tstg –65 to 150 °C
Lead Temperature*3Tlead 260 °C
Output Current IOUT ±150 mA
Supply Current ICC ±150 mA
Notes: 1. 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.
2. The value is defined as of ground terminal .
3. The value at 1.6 mm away from the package within 10 second, when soldering.
Recommended Operating Conditions (Ta = –40°C to +85°C)
Item Symbol Min Typ Max Unit
Supply Voltage VCC 4.5 5.0 5.5 V
Input Voltage VIN 0—V
CC V
Output Voltage VOUT 0—V
CC V
Operating Temperature Ta –40 25 85 °C
Input Rise/Fall Time*1tr, tf— — 500 ns
Note: 1. This item guarantees maximum limit when one input switches.
HD29C3487
4
Logic Diagram
3Y
3Z
4Y
4Z
1Y
1Z
2Y
2Z
1,2 Output
Enable
3,4 Output
Enable
3A
4A
1A
2A
Electrical Characteristics (Ta = –40°C to +85°C)
Item Symbol Min Typ*1Max Unit Conditions
Input Voltage VIH 2.0 — — V
VIL — — 0.8 V
Output Voltage VOH 2.4 3.4 — V VIN = VIH or VIL, IOH = –20 mA
VOL — 0.2 0.4 V VIN = VIH or VIL, IOL = 20 mA
Differential Output Voltage VT 2.0 3.1 — V RL = 100 Ω50
Ω
50
Ω
VTVOS
Change In Magnitude Of
Differential Output Voltage IVTI – IVTI — — 0.4 V
Common Mode Output Voltage VOS — 1.8 3.0 V
Magnitude Of Common Mode
Output Voltage IVOS – VOSI — — 0.4 V
Input Current IIN ——±1.0 µAV
IN = VCC, GND, VIH or VIL
Supply Current ICC — 200 500 µAI
OUT = 0 mA, VIN = VCC or GND
ICC*2— 0.8 2.0 mA IOUT = 0 mA, VIN = 2.4 V or 0.5 V
Off State Output Current IOZ —±0.5 ±5.0 µAV
OUT = VCC or GND, G = VIL, G = VIH
Short Circuit Output Current ISC*3–30 — –150 mA VIN = VCC or GND
Output Current With Power Off IOFF — — 100 mA VCC = 0 V, VOUT = 6 V
IOFF — — –100 mA VCC = 0 V, VOUT = –0.25 V
Notes: 1. All typical values are at VCC = 5 V, Ta = 25°C.
2. 1 input: VIN = 2.4 V or 0.5 V, other inputs: VIN = VCC or GND
HD29C3487
5
3. Not more than one output should be shorted at a time and duration of the short circuit should not
exceed one second.
Switching Characteristics (Ta = –40°C to +85°C, VCC = 5 V ± 10%)
Item Symbol Min Typ*1Max Unit Conditions
Propagation Delay Time tPLH 2.0 6.0 11.0 ns Test Circuit (1)
tPHL 2.0 6.0 11.0 ns
Output To Output Skew Skew — 0.5 2.0 ns
Differential Output Transition tTLH — 6.0 10.0 ns Test Circuit (3)
Time tTHL — 6.0 10.0 ns
Output Enable Time tZL — 11.0 19.0 ns Test Circuit (2)
tZH — 13.0 21.0 ns
Output Disable Time tLZ — 5.0 9.0 ns
tHZ — 7.0 11.0 ns
Power Dissipation Capacitance CPD — 50.0 — pF
Input Capacitance CIN — 6.0 — pF
Test Circuit 1
Pulse Generator
Z = 50
out Ω
VCC
C1
Input Output
Output
C2
C3
R1
R2
R3
OPEN
1.5 V
VCC
AY
Z
S1
Note: 1. C1, C2 and C3 (40 pF) includes probe and jig capacitance.
R1 = R2 = 50 Ω, R3 = 500 Ω
HD29C3487
6
Waveforms 1
Input A 10 %
90 %
trtf
1.3 V 90 %
0 V
3 V
1.3 V 10 %
Output Y
OH
VOL
V
tPHL tPLH
tPLH tPHL
1.3 V 1.3 V
1.3 V 1.3 V
VOH
VOL
Output Z
50 % 50 %
50 %
Skew Skew
VOH
VOL
Output Y
Output Z 50 %
VOH
VOL
Notes: 1. tr ≤ 6 ns, tf ≤ 6 ns
2. Input waveforms: PRR = 1 MHz, duty cycle 50%
HD29C3487
7
Test Circuit 2
VCC
C1
Output
Output
C2
C3
R1
R2
R3
CLOSED
1.5 V
Y
Z
S1
Pulse Generator
Z = 50
out Ω
Input A
VCC
Note: 1. C1, C2 and C3 (40 pF) includes probe and jig capacitance.
R1 = R2 = 50 Ω, R3 = 500 Ω
HD29C3487
8
Waveforms 2
Output
Enable 10 %
90 %
tftr
1.3 V 90 %
1.3 V
10 %
tHZ tZH
tLZ tZL
V + 0.3 V 0.8 V
1.5 V
VOL
VOH
OL
Output Y
(Input A : GND)
Output Y
(Input A : V )
3 V
0 V
1.5 V
VOL
Output Z
(Input A : GND) 0.8 V 1.5 V
V + 0.3 V
OL
V – 0.3 V
OH
tHZ
2.0 V
tZH
tLZ tZL
CC
OH
1.5 V
V
2.0 VV – 0.3 V
OH
Output Y
(Input A : V )
CC
Notes: 1. tr ≤ 6 ns, tf ≤ 6 ns
2. Input waveforms: PRR = 1 MHz, duty cycle 50Ω
HD29C3487
9
Test Circuit 3
C1
C2
C3
R1
R2
R3
OPEN
1.5 V
S1
Pulse
Genelator
Input
VCC
AY
Z
Ach
Bch
Oscilloscope
Bch Invert
Ach Add Bch
Output
*1
Note: 1. C1, C2 and C3 (40 pF) includes probe and jig capacitance.
R1 = R2 = 50 Ω, R3 = 500 Ω
Waveforms–3
Input A 10 %
90 %
trtf
90 %
0 V
3 V
10 %
10 %
90 %
tTLH tTHL 10 %
90 %
(Differential)
Output
Notes: 1. tr ≤ 6 ns, tf ≤ 6 ns
2. Input waveforms: PRR = 1 MHz, duty cycle 50%
HD29C3487
10
Package Dimensions
Hitachi Code
JEDEC
EIAJ
Mass
(reference value)
DP-16
Conforms
Conforms
1.07 g
Unit: mm
6.30
19.20
16 9
81 1.3
20.00 Max
7.40 Max
7.62
0.25
+ 0.13
– 0.05
2.54 ± 0.25 0.48 ± 0.10
0.51 Min
2.54 Min 5.06 Max
0° – 15°
1.11 Max
Hitachi Code
JEDEC
EIAJ
Mass
(reference value)
FP-16DA
—
Conforms
0.24 g
Unit: mm
*Dimension including the plating thickness
Base material dimension
*0.22 ± 0.05
*0.42 ± 0.08
0.12
0.15
M
2.20 Max 5.5
10.06
0.80 Max
16 9
18
10.5 Max
+ 0.20
– 0.30
7.80
0.70 ± 0.20
0° – 8°
0.10 ± 0.10
1.15
1.27
0.40 ± 0.06
0.20 ± 0.04
HD29C3487
11
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 fail-
safes, 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
Copyright Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.
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