AM26LS31
SEMICONDUCTOR
TECHNICAL DATA
QUAD EIA422 LINE DRIVER
WITH THREESTATE OUTPUTS
PIN CONNECTIONS
Order this document by AM26LS31/D
PC SUFFIX
PLASTIC PACKAGE
CASE 648
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO16)
Device
Operating
Temperature Range
Package
ORDERING INFORMATION
AM26LS31PC
MC26LS31D*
TA = 0 to +70
C
Plastic DIP
SO16
11
10
Outputs C
9
6
5
Outputs D
13
14
Outputs A
3
2
8
7
4
1
12
15
Outputs B
Enable
VCC
Input C
Input D
Input A
16
Enable
Input B
Gnd
1
MOTOROLA ANALOG IC DEVICE DATA
Quad Line Driver with NAND
Enabled Three-State Outputs
The Motorola AM26LS31 is a quad differential line driver intended for
digital data transmission over balanced lines. It meets all the requirements of
EIA422 Standard and Federal Standard 1020.
The AM26LS31 provides an enable/disable function common to all four
drivers as opposed to the split enables on the MC3487 EIA422 driver.
The high impedance output state is assured during power down.
Full EIA422 Standard Compliance
Single + 5.0 V Supply
Meets Full VO = 6.0 V, VCC = 0 V, IO
t
100
A Requirement
Output Short Circuit Protection
Complementary Outputs for Balanced Line Operation
High Output Drive Capability
Advanced LS Processing
PNP Inputs for MOS Compatibility
Representative Block Diagrams
Enable
Enable
Input
NonInverting
Outputs
Inverting
Output
Controls
TRUTH TABLE
Input
Control
lnputs
(E/E)
NonInverting
Output
Inverting
Output
H
L
X
H/L
H/L
L/H
H
L
Z
L
H
Z
* Note that the surface mount MC26LS31D device uses the same die as in the plastic DIP
*
AM26LS31DC device, but with an MC prefix to prevent confusion with the package suffix.
Motorola, Inc. 1995
L = Low Logic State
H = High Logic State
X = Irrelevant
Z = ThirdState (High Impedance)
AM26LS31
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
VCC
8.0
Vdc
Input Voltage
VI
5.5
Vdc
Operating Ambient Temperature Range
TA
0 to + 70
C
Operating Junction Temperature Range
TJ
150
C
Storage Temperature Range
Tstg
65 to + 150
C
ELECTRICAL CHARACTERISTICS
(Unless otherwise noted, specifications apply 4.75 V
p
VCC
p
5.25 V and 0
C
p
TA
p
70
C.
Typical values measured at VCC = 5.0 V, and TA = 25
C.)
Characteristic
Symbol
Min
Typ
Max
Unit
Input Voltage Low Logic State
VIL
0.8
Vdc
Input Voltage High Logic State
VIH
2.0
Vdc
Input Current Low Logic State
(VIL = 0.4 V)
IIL
360
A
Input Current High Logic State
(VIH = 2.7 V)
(VIH = 7.0 V)
IIH
+ 20
+ 100
A
Input Clamp Voltage
(IIK = 18 mA)
VIK
1.5
V
Output Voltage Low Logic State
(IOL = 20 mA)
VOL
0.5
V
Output Voltage High Logic State
(IOH = 20 mA)
VOH
2.5
V
Output Short Circuit Current
(VIH = 2.0 V) Note 1
IOS
30
150
mA
Output Leakage Current HiZ State
(VOL = 0.5 V, VIL(E) = 0.8 V, VIH(E) = 2.0 V)
(VOH = 2.5 V, VIL(E) = 0.8 V, VIH(E) = 2.0 V)
IO(Z)
20
+ 20
A
Output Leakage Current Power OFF
(VOH = 6.0 V, VCC = 0 V)
(VOL = 0.25 V, VCC = 0 V)
IO(off)
+ 100
100
A
Output Offset Voltage Difference, Note 2
VOS VOS
"
0.4
V
Output Differential Voltage, Note 2
VOD
2.0
V
Output Differential Voltage Difference, Note 2
VOD
0.4
V
Power Supply Current
(Output Disabled) Note 3
ICCX
60
80
mA
NOTES: 1. Only one output may be shorted at a time.
2. See EIA Specification EIA422 for exact test conditions.
3. Circuit in threestate condition.
SWITCHING CHARACTERISTICS
(VCC = 5.0 V, TA = 25
C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Propagation Delay Times
High to Low Output
Low to High Output
tPHL
tPLH
20
20
ns
Output Skew
6.0
ns
Propagation Delay Control to Output
(CL = 10 pF, RL = 75
to Gnd)
(CL = 10 pF, RL = 180
to VCC)
(CL = 30 pF, RL = 75
to Gnd)
(CL = 30 pF, RL = 180
to VCC)
tPHZ(E)
tPLZ(E)
tPZH(E)
tPZL(E)
30
35
40
45
ns
AM26LS31
3
MOTOROLA ANALOG IC DEVICE DATA
Pulse generator characteristics
3.0 V
Scope
(Input)
NonInv
Output
75
200
5.0 V
Scope
(Output)
3.0 V
Enable
CL = 30 pF
Inv
Output
50
3.0 V
+ 5 V
75
Inv
Output
180
CL
NonInv
Output
To Scope
Output
3.0 V or Gnd
Input
To Scope (Input)
Enable
50
VOH
VOL
tPLH
VOH
Pulse
Generator
1.5 V
1.5 V
VOL
0 V
tPLZ(E)
VOH
VOL
0 V
0 V
VOH
0
CL Includes Probe and Jig Capacitance. See Test Table.
RL See Test Table
tPHL
1.3 V
1.3 V
1.3 V
0 V
1.3 V
0 V
1.3 V
1.3 V
Output
Output
tPHL
Input
Control
Input
(Enable)
CL Includes Probe and Jig Capacitance
1.3 V
tPHZ(E)
3.0 V
0.5 V
0
Output
Output
0.5 V
3.0 V
1.3 V
1.3 V
1.3 V
Pulse
Generator
Control
Input
(Enable)
Output
Output
tPZH(E)
tPZL(E)
tPLH
Open for tPZH(E) Test Only
0 V
VOL
Figure 1. ThreeState Enable Test Circuit and Waveforms
Figure 2. Propagation Delay Times Input to Output Waveforms and Test Circuit
Zo = 50
PRR
p
1.0 MHz
50% Duty Cycle
tTLH, tTHL
p
6 ns
Pulse generator characteristics
Zo = 50
PRR
p
1.0 MHz
50% Duty Cycle
tTLH, tTHL
p
6 ns
AM26LS31
4
MOTOROLA ANALOG IC DEVICE DATA
OUTLINE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
A
B
F
C
S
H
G
D
J
L
M
16 PL
SEATING
1
8
9
16
K
PLANE
T
M
A
M
0.25 (0.010)
T
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
A
0.740
0.770
18.80
19.55
B
0.250
0.270
6.35
6.85
C
0.145
0.175
3.69
4.44
D
0.015
0.021
0.39
0.53
F
0.040
0.70
1.02
1.77
G
0.100 BSC
2.54 BSC
H
0.050 BSC
1.27 BSC
J
0.008
0.015
0.21
0.38
K
0.110
0.130
2.80
3.30
L
0.295
0.305
7.50
7.74
M
0
10
0
10
S
0.020
0.040
0.51
1.01
_
_
_
_
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
1
8
16
9
SEATING
PLANE
F
J
M
R
X 45
_
G
8 PL
P
B
A
M
0.25 (0.010)
B
S
T
D
K
C
16 PL
S
B
M
0.25 (0.010)
A
S
T
DIM
MIN
MAX
MIN
MAX
INCHES
MILLIMETERS
A
9.80
10.00
0.386
0.393
B
3.80
4.00
0.150
0.157
C
1.35
1.75
0.054
0.068
D
0.35
0.49
0.014
0.019
F
0.40
1.25
0.016
0.049
G
1.27 BSC
0.050 BSC
J
0.19
0.25
0.008
0.009
K
0.10
0.25
0.004
0.009
M
0
7
0
7
P
5.80
6.20
0.229
0.244
R
0.25
0.50
0.010
0.019
_
_
_
_
PC SUFFIX
PLASTIC PACKAGE
CASE 64808
ISSUE R
D SUFFIX
PLASTIC PACKAGE
CASE 751B05
(SO16)
ISSUE J
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different
applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does
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AM26LS30/D
*AM26LS30/D*
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