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零件编号 | DS35F86 | ||
描述 | (DS34F86 / DS35F86) RS-422/RS-423 Quad Line Receiver | ||
制造商 | National Semiconductor | ||
LOGO | |||
1 Page
February 1996
DS34F86/DS35F86
RS-422/RS-423 Quad Line Receiver with TRI-STATE®
Outputs
General Description
The DS34F86/DS35F86 RS-422/3 Quad Receiver features
four independent receivers, which comply with EIA Stan-
dards for the electrical characteristics of balanced/
unbalanced voltage digital interface circuits. Receiver out-
puts are 74LS compatible TRI-STATE structures which are
forced to a high impedance state when the appropriate out-
put control lead reaches a logic zero condition. A PNP device
buffers each output control lead to assure minimum loading
for either logic one or logic zero inputs. In addition each re-
ceiver has internal hysteresis circuitry to improve noise mar-
gin and discourage output instability for slowly changing in-
put waveforms.
The DS34F86/DS35F86 offers improved performance due to
the use of state-of-the-art L-FAST bipolar technology. The
L-FAST technology allows for higher speeds and lower cur-
rents by utilizing extremely short gate delay times. Thus, the
DS34F86/DS35F86 features lower power, extended tem-
perature range, and improved specifications.
The DS34F86/DS35F86 offers optimum performance when
used with the DS34F87/DS35F87 Quad Line Driver.
Features
n Military temperature range
n TRI-STATE outputs
n Fast propagation times (15 ns typical)
n TTL compatible
n 5.0V supply
n Lead compatible and interchangeable with MC3486 and
DS3486
Connection Diagram
16-Lead DIP
DS009616-1
Top View
Order Number DS34F86J or DS35F86J
See NS Package Number J16A
FIGURE 1. Block Diagram
Function Table
(Each Receiver)
Differential Inputs
VID = (VIN+) − (VIN−)
VID ≥ 0.2V
VID ≤ −0.2V
X
Note 1: H = High Level
Note 2: L = Low Level
Note 3: Z = High Impedance (off)
Enable
E
H
H
L
DS009616-2
Output
OUT
H
L
Z
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1997 National Semiconductor Corporation DS009616
www.national.com
1
PrintDate=1997/04/25 PrintTime=10:08:01 5859 ds009616 Rev. No. 1 Proof
1
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页数 | 6 页 | ||
下载 | [ DS35F86.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
DS35F86 | (DS34F86 / DS35F86) RS-422/RS-423 Quad Line Receiver | National Semiconductor |
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