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LINE RECEIVER. SN75140 Datasheet

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LINE RECEIVER. SN75140 Datasheet






SN75140 RECEIVER. Datasheet pdf. Equivalent




SN75140 RECEIVER. Datasheet pdf. Equivalent





Part

SN75140

Description

DUAL LINE RECEIVER



Feature


SN75140 DUAL LINE RECEIVER D Single 5-V Supply D ±100-mV Sensitivity D For Ap plication as: – Single-Ended Line Rec eiver – Gated Oscillator – Level Co mparator D Adjustable Reference Voltage D TTL Outputs D TTL-Compatible Strobe D Designed for Party-Line (Data-Bus) Ap plications D Common Reference-Voltage P in D Common Strobe SLLS080C – JANUAR Y 1977 – REVISED APRIL 1998.
Manufacture

Texas Instruments

Datasheet
Download SN75140 Datasheet


Texas Instruments SN75140

SN75140; P OR PS† PACKAGE (TOP VIEW) 1OUT 1 C OMSTRB 2 1LINE 3 GND 4 8 VCC 7 2OUT 6 COMREF 5 2LINE † The PS package is o nly available left-ended taped and reel ed (order SN75140 PSR). description Th is device consists of a dual single-end ed line receiver with TTL-compatible st robes and outputs. The reference voltag e (switching threshold) is applied exte rnally and can be adju.


Texas Instruments SN75140

sted from 1.5 V to 3.5 V, making it poss ible to optimize noise immunity for a g iven system design. Due to the low inpu t current (less than 100 µA), the devi ce is suited ideally for party-line (da ta-bus) systems. The SN75140 has a comm on reference-voltage pin and a common s trobe. The SN75140 is characterized for operation from 0°C to 70°C. logic s ymbol‡ FUNCTION TABL.


Texas Instruments SN75140

E (each receiver) LINE INPUT STROBE OUT PUT ≤ Vref – 100 mV L H ≥ Vre f + 100 mV X L X H L H = high lev el, L = low level, X = irrelevant 2 CO MSTRB 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. Plea se be aware that an important notice co ncerning availability, standar.

Part

SN75140

Description

DUAL LINE RECEIVER



Feature


SN75140 DUAL LINE RECEIVER D Single 5-V Supply D ±100-mV Sensitivity D For Ap plication as: – Single-Ended Line Rec eiver – Gated Oscillator – Level Co mparator D Adjustable Reference Voltage D TTL Outputs D TTL-Compatible Strobe D Designed for Party-Line (Data-Bus) Ap plications D Common Reference-Voltage P in D Common Strobe SLLS080C – JANUAR Y 1977 – REVISED APRIL 1998.
Manufacture

Texas Instruments

Datasheet
Download SN75140 Datasheet




 SN75140
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 VCC
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1998, Texas Instruments Incorporated
1




 SN75140
SN75140
DUAL LINE RECEIVER
SLLS080C – JANUARY 1977 – REVISED APRIL 1998
logic diagram (positive logic)
2
COMSTRB
3
1LINE
COMREF 6
5
2LINE
1 1OUT
7
2OUT
schematic (each receiver)
1500
750
1500
4000
4000 130
VCC
To Other
Line Receiver
LINE
COMREF
470
470
To Other
Line Receiver
1500
850
2900
750
500
1000
NOTE: Resistor values shown are nominal and in ohms.
OUT
GND
To Other Line Receiver
COMSTRB
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Reference input voltage, Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Line input voltage range with respect to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –2 V to 5.5 V
Line input voltage with respect to Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 V
Strobe input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: Unless otherwise specified, voltage values are with respect to network ground terminal.
PACKAGE
P
PS
DISSIPATION RATING TABLE
TA 25°C
POWER RATING
1000 mW
DERATING FACTOR
ABOVE TA = 25°C
8.0 mW/°C
450 mW
3.6 mW/°C
TA = 70°C
POWER RATING
640 mW
288 mW
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265




 SN75140
SN75140
DUAL LINE RECEIVER
recommended operating conditions
Supply voltage, VCC
Reference input voltage, Vref
High-level line input voltage, VIH(L)
Low-level line input voltage, VIL(L)
High-level strobe input voltage, VIH(S)
Low-level strobe input voltage, VIL(S)
Operating free-air temperature range, TA
SLLS080C – JANUARY 1977 – REVISED APRIL 1998
MIN
4.5
1.5
Vref+0.1
0
2
0
0
NOM
MAX
5
5.5
3.5
VCC–1
Vref–0.1
5.5
0.8
70
UNIT
V
V
V
V
V
V
°C
electrical characteristics over recommended operating free-air
VCC = 5 V ±10%, Vref = 1.5 V to 3.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VIK
VOH
Strobe input clamp voltage
High-level output voltage
II(S) = –12 mA
VIL(L) = Vref – 100 mV,
VIL(S) = 0.8 V, IOH = –400 µA
VOL Low-level output voltage
VIH(L) = Vref + 100 mV, VIL(S) = 0.8 V, IOL = 16 mA
VIL(L) = Vref – 100 mV, VIH(S) = 2 V, IOL = 16 mA
Strobe input
Strobe
II(S)
current at
maximum input
VI(S) = 5.5 V
voltage
COMSTRB
Strobe
COMSTRB
VI(S) = 2.4 V
IIH
High-level
input current
LINE
VI(L) = 3.5 V,
Reference
COMREF
VI(L) = 0,
Vref = 1.5 V
Vref = 3.5 V
Strobe
COMSTRB
VI(S) = 0.4 V
IIL
Low-level
input current
LINE
VI(L) = 0,
Reference
COMREF
VI(L) = 1.5 V,
IOS
Short-circuit output current‡
VCC = 5.5 V
ICCH Supply current, output high
VI(S) = 0,
ICCL Supply current, output low
VI(S) = 0,
All typical values are at VCC = 5 V, TA = 25°C.
Only one output should be shorted at a time.
Vref = 1.5 V
Vref = 0
VI(L) = Vref – 100 mV
VI(L) = Vref + 100 mV
temperature range,
MIN TYP†
2.4
MAX
–1.5
0.4
0.4
UNIT
V
V
V
1
mA
2
40
80
35 100 µA
35 100
70 200
–1.6
mA
–3.2
–10
–10 µA
–20
–18
–55 mA
18
30 mA
20
35 mA
switching characteristics, VCC = 5 V, Vref = 2.5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
tPLH(L) Propagation delay time, low- to high-level output from LINE
CL = 15 pF, RL = 400 kΩ,
See Figure 1
tPHL(L) Propagation delay time, high- to low-level output from LINE
CL = 15 pF, RL = 400 kΩ,
See Figure 1
tPLH(S)
Propagation delay time,
low- to high-level output from COMSTRB
CL = 15 pF, RL = 400 kΩ,
See Figure 1
tPHL(S)
Propagation delay time,
high- to low-level output from COMSTRB
CL = 15 pF, RL = 400 kΩ,
See Figure 1
MIN TYP MAX UNIT
22
35 ns
22
30 ns
12
22 ns
8
15 ns
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3



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