SN75140_14 Datasheet, PDF (1/18 Pages) Texas Instruments – DUAL LINE RECEIVER

SN75140
DUAL LINE RECEIVER
D Single 5-V Supply
D ±100-mV Sensitivity
D For Application as:
– Single-Ended Line Receiver
– Gated Oscillator
– Level Comparator
D Adjustable Reference Voltage
D TTL Outputs
D TTL-Compatible Strobe
D Designed for Party-Line (Data-Bus)
Applications
D Common Reference-Voltage Pin
D Common Strobe
SLLS080C – JANUARY 1977 – REVISED APRIL 1998
P OR PS† PACKAGE
(TOP VIEW)
1OUT 1
COMSTRB 2
1LINE 3
GND 4
8 V_CC
7 2OUT
6 COMREF
5 2LINE
† _{The PS package is only available}
left-ended taped and reeled (order
SN75140 PSR).
description
This device consists of a dual single-ended line receiver with TTL-compatible strobes and outputs. The
reference voltage (switching threshold) is applied externally and can be adjusted from 1.5 V to 3.5 V, making
it possible to optimize noise immunity for a given system design. Due to the low input current (less than 100 µA),
the device is suited ideally for party-line (data-bus) systems.
The SN75140 has a common reference-voltage pin and a common strobe.
The SN75140 is characterized for operation from 0°C to 70°C.
logic symbol^‡
FUNCTION TABLE
(each receiver)
LINE INPUT STROBE OUTPUT
≤ Vref – 100 mV
L
H
≥ Vref + 100 mV
X
L
X
H
L
H = high level, L = low level, X = irrelevant
2
COMSTRB
3
1LINE
COMREF ⁶
5
2LINE
≥1
1
1OUT
≥1
7
2OUT
‡ _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1998, Texas Instruments Incorporated
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