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DS34LV87T Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. DS34LV87T
Description  Enhanced CMOS Quad Differential Line Driver
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DS34LV87T Datasheet(HTML) 1 Page - National Semiconductor (TI)

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DS34LV87T
Enhanced CMOS Quad Differential Line Driver
General Description
The DS34LV87T is a high speed quad differential CMOS
driver that meets the requirements of both TIA/EIA-422-B
and ITU-T V.11. The CMOS DS34LV87T features low static
I
CC of 100 µA max which makes it ideal for battery powered
and power conscious applications. The TRI-STATE® enable,
EN, allows the device to be disabled when the device is not
in use to minimize power. The dual enable scheme allows for
flexibility in turning devices on or off.
Protection diodes protect all the driver inputs against elec-
trostatic discharge. The driver and enable inputs (DI and EN)
are compatible with LVTTL and LVCMOS devices. Differen-
tial outputs have the same V
OD (
≥2V) guarantee as the 5V
version. The outputs have enhanced ESD Protection provid-
ing greater than 7 kV tolerance.
Features
n
Meets TIA/EIA-422-B (RS-422) and ITU-T V.11
recommendation
n
Interoperable with existing 5V RS-422 networks
n
Guaranteed V
OD of 2V min over operating conditions
n
Balanced output crossover for low EMI (typical within 40
mV of 50% voltage level)
n
Low power design (330 µW @ 3.3V static)
n
ESD
≥ 7 kV on cable I/O pins (HBM)
n
Industrial temperature range
n
Guaranteed AC parameter:
— Maximum driver skew:
2 ns
— Maximum transition time:
10 ns
n
Pin compatible with DS26C31
n
Available in SOIC packaging
Connection Diagram
Dual-In-Line Package
01264501
Top View
Order Number DS34LV87TM
See NS Package Number M16A
Truth Table
Enables
Input
Outputs
EN
DI
DO+
DO−
LX
Z
Z
HH
H
L
HL
L
H
L = Low logic state
X = Irrelevant
H = High logic state
Z = TRI-STATE
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
November 2000
© 2004 National Semiconductor Corporation
DS012645
www.national.com


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