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PDF DS3691M Data sheet ( Hoja de datos )
| Número de pieza | DS3691M | |
| Descripción | (RS-422/RS-423) Line Drivers with TRI-STATE Outputs | |
| Fabricantes | National Semiconductor | |
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Hay una vista previa y un enlace de descarga de DS3691M (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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July 1998
DS1691A/DS3691
(RS-422/RS-423) Line Drivers with TRI-STATE® Outputs
General Description
The DS1691A/DS3691 are low power Schottky TTL line driv-
ers designed to meet the requirements of EIA standards
RS-422 and RS-423. They feature 4 buffered outputs with
high source and sink current capability with internal short cir-
cuit protection. A mode control input provides a choice of op-
eration either as 4 single-ended line drivers or 2 differential
line drivers. A rise time control pin allows the use of an exter-
nal capacitor to slow the rise time for suppression of near
end crosstalk to other receivers in the cable. Rise time ca-
pacitors are primarily intended for waveshaping output sig-
nals in the single-ended driver mode. Multipoint applications
in differential mode with waveshaping capacitors is not al-
lowed.
With the mode select pin low, the DS1691A/DS3691 are
dual-differential line drivers with TRI-STATE outputs. They
feature ±10V output common-mode range in TRI-STATE
mode and 0V output unbalance when operated with ±5V
supply.
Features
n Dual RS-422 line driver with mode pin low, or quad
RS-423 line driver with mode pin high
n TRI-STATE outputs in RS-422 mode
n Short circuit protection for both source and sink outputs
n Outputs will not clamp line with power off or in
TRI-STATE
n 100Ω transmission line drive capability
n Low ICC and IEE power consumption
RS-422: ICC = 9 mA/driver typ
RS-423: ICC = 4.5 mA/driver typ:
I EE = 2.5 mA/driver typ
n Low current PNP inputs compatible with TTL, MOS and
CMOS
n Pin compatible with AM26LS30
Connection Diagrams
With Mode Select LOW
(RS-422 Connection)
With Mode Select HIGH
(RS-423 Connection)
Top View
DS005783-1
Top View
Ordering Information
Order Number
Package Type
NS Package Number
DS3691M
SO Package
M16A
DS3691N
Molded DIP
N16E
For Complete Military Product Specifications, refer to the appropriate SMD or MDS.
DS1691AJ/883
Ceramic DIP
J16A
DS005783-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS005783
www.national.com
1 page  
AC Test Circuits and Switching Time Waveforms (Continued)
DS005783-7
FIGURE 3. Rise Time Control for RS-423
DS005783-8
Switching Waveforms
DS005783-9
FIGURE 4. TRI-STATE Delays
DS005783-10
FIGURE 5. Typical Output Voltage
5
DS005783-11
www.national.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet DS3691M.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DS3691 | (RS-422/RS-423) Line Drivers with TRI-STATE Outputs | National Semiconductor |
| DS3691M | (RS-422/RS-423) Line Drivers with TRI-STATE Outputs | National Semiconductor |
| DS3691N | (RS-422/RS-423) Line Drivers with TRI-STATE Outputs | National Semiconductor |
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