SN65LVDS386, SN65LVDT386, SN75LVDS386, SN75LVDT386
SN65LVDS388, SN65LVDT388, SN75LVDS388, SN75LVDT388
HIGH-SPEED DIFFERENTIAL LINE RECEIVERS
SLLS394A – SEPTEMBER 1999 – REVISED DECEMBER 1999
SN65LVDS388, SN75LVDS388
SN65LVDT388, SN75LVDT388
DBT PACKAGE
SN65LVDS386, SN75LVDS386
SN65LVDT386, SN75LVDT386
DGG PACKAGE
Eight (‘388) or Sixteen (‘386) Line Receivers
Meet or Exceed the Requirements of ANSI
TIA/EIA-644 Standard
(TOP VIEW)
(TOP VIEW)
Integrated 110-Ω Line Termination
Resistors on LVDT Products
1
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
A1A
A1B
A2A
A2B
NC
B1A
B1B
B2A
B2B
NC
C1A
C1B
C2A
C2B
NC
D1A
D1B
D2A
D2B
GND
1
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
A1A
A1B
A2A
A2B
A3A
A3B
A4A
A4B
B1A
B1B
B2A
B2B
B3A
B3B
B4A
B4B
C1A
C1B
C2A
C2B
C3A
C3B
C4A
C4B
D1A
D1B
D2A
D2B
D3A
D3B
D4A
D4B
GND
†
Designed for Signaling Rates Up To
630 Mbps
2
V
2
V
CC
CC
3
ENA
A1Y
A2Y
ENB
B1Y
B2Y
GND
3
V
CC
4
SN65 Version’s Bus-Terminal ESD Exceeds
15 kV
4
GND
ENA
A1Y
A2Y
A3Y
A4Y
ENB
B1Y
B2Y
B3Y
B4Y
GND
5
5
6
6
Operates From a Single 3.3-V Supply
7
7
Typical Propagation Delay Time of 2.6 ns
8
8
Output Skew 100 ps (Typ)
Part-To-Part Skew is Less Than 1 ns
9
9
10
11
12
13
14
15
16
17
18
19
V
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
CC
LVTTL Levels are 5-V Tolerant
Open-Circuit Fail Safe
GND
C1Y
C2Y
ENC
D1Y
D2Y
END
Flow-Through Pin Out
Packaged in Thin Shrink Small-Outline
Package With 20-mil Terminal Pitch
V
V
CC
CC
description
V
CC
GND
C1Y
C2Y
C3Y
C4Y
ENC
D1Y
D2Y
D3Y
D4Y
END
GND
GND
The ‘LVDS388 and ‘LVDT388 (T designates
integrated termination) are eight and the
‘LVDS386 and ‘LVDT386 sixteen differential line
receivers respectively that implement the electri-
cal characteristics of low-voltage differential
signaling (LVDS). This signaling technique lowers
the output voltage levels of 5-V differential
standard levels (such as EIA/TIA-422B) to reduce
the power, increase the switching speeds, and
allow operation with a 3-V supply rail. Any of the
eight or sixteen differential receivers will provide
a valid logical output state with a ±100 mV
differential input voltage within the input common-
mode voltage range. The input common-mode
voltage range allows 1 V of ground potential
difference between two LVDS nodes. Additionally,
the high-speed switching of LVDS signals almost
always require the use of a line impedance
matching resistor at the receiving end of the cable
or transmission media. The LVDT products
eliminate this external resistor by integrating it
with the receiver.
V
V
CC
CC
GND
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.
†
Signaling rate, 1/t, where t is the minimum unit interval and is expressed in the units bits/s (bits per second)
Copyright 1999, Texas Instruments Incorporated
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.
1
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