Datasheet AM26LS31PC Datasheet (Motorola)



SEMICONDUCTOR

TECHNICAL DATA

QUAD EIA–422 LINE DRIVER

WITH THREE–STATE OUTPUTS

PIN CONNECTIONS

Order this document by AM26LS31/D

PC SUFFIX

PLASTIC PACKAGE

CASE 648

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

Device

Operating

Temperature Range

Package

ORDERING INFORMATION

AM26LS31PC
MC26LS31D*

TA = 0 to +70°C

Plastic DIP

SO–16

11
10

Outputs C

9

6

5

Outputs D

13

14

Outputs A

3

2

8

7

4

1

12

15

Outputs B

Enable

V

CC

Input C

Input D

Input A

16

Enable

Input B

Gnd

1

MOTOROLA ANALOG IC DEVICE DATA

    
  

The Motorola AM26LS31 is a quad differential line driver intended for
digital data transmission over balanced lines. It meets all the requirements of
EIA–422 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 EIA–422 driver.

The high impedance output state is assured during power down.

• Full EIA–422 Standard Compliance

• Single +5.0 V Supply

• Meets Full V

O

= 6.0 V, VCC = 0 V, IO t 100 µA 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

Non–Inverting

Outputs

Inverting

Output
Controls

TRUTH TABLE

Input

Control

lnputs

(E/E

)

Non–Inverting

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

X = Irrelevant
Z = Third–State (High Impedance)

L = Low Logic State
H = High Logic State

AM26LS31

2

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Voltage V

CC

8.0 Vdc

Input Voltage V

I

5.5 Vdc

Operating Ambient Temperature Range T

A

0 to + 70 °C

Operating Junction Temperature Range T

J

150 °C

Storage Temperature Range T

stg

– 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 V

IL

– – 0.8 Vdc

Input Voltage – High Logic State V

IH

2.0 – – Vdc

Input Current – Low Logic State

(VIL = 0.4 V)

I

IL

– – – 360 µA

Input Current – High Logic State

(VIH = 2.7 V)
(VIH = 7.0 V)

I

IH

–
–

–
–

+ 20

+ 100

µA

Input Clamp Voltage

(IIK = – 18 mA)

V

IK

– – – 1.5 V

Output Voltage – Low Logic State

(IOL = 20 mA)

V

OL

– – 0.5 V

Output Voltage – High Logic State

(IOH = –20 mA)

V

OH

2.5 – – V

Output Short Circuit Current

(VIH = 2.0 V) Note 1

I

OS

– 30 – – 150 mA

Output Leakage Current – Hi–Z State

(VOL = 0.5 V, V

IL(E)

= 0.8 V, V

IH(E

)

= 2.0 V)

(VOH = 2.5 V, V

IL(E)

= 0.8 V, V

IH(E

)

= 2.0 V)

I

O(Z)

–
–

–
–

– 20
+ 20

µA

Output Leakage Current – Power OFF

(VOH = 6.0 V, VCC = 0 V)
(VOL = – 0.25 V, VCC = 0 V)

I

O(off)

–
–

–
–

+ 100
– 100

µA

Output Offset Voltage Difference, Note 2 VOS – V

OS

– –

"

0.4 V

Output Differential Voltage, Note 2 V

OD

2.0 – – V
Output Differential Voltage Difference, Note 2 ∆VOD – – ± 0.4 V
Power Supply Current

(Output Disabled) Note 3

I

CCX

– 60 80 mA

NOTES: 1. Only one output may be shorted at a time.

2.See EIA Specification EIA–422 for exact test conditions.

3.Circuit in three–state condition.

SWITCHING CHARACTERISTICS (V

CC

= 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

t

PHL

t

PLH

–
–

–
–

20
20

ns

Output Skew – – 6.0 ns
Propagation Delay – Control to Output

(CL = 10 pF, RL = 75 Ω to Gnd)
(CL = 10 pF, RL = 180 Ω to VCC)
(CL = 30 pF, RL = 75 Ω to Gnd)
(CL = 30 pF, RL = 180 Ω to VCC)

t

PHZ(E)

t

PLZ(E)

t

PZH(E)

t

PZL(E)

–
–
–
–

–
–
–
–

30
35
40
45

ns

AM26LS31

3

MOTOROLA ANALOG IC DEVICE DATA

Pulse generator characteristics

3.0 V

Scope
(Input)

Non–Inv
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

C

L

Non–Inv
Output

To Scope

Output

3.0 V or Gnd
Input

To Scope (Input)

Enable

50

V

OH

V

OL

t

PLH

V

OH

Pulse
Generator

≈

1.5 V

≈

1.5 V

V

OL

0 V

t

PLZ(E)

V

OH

V

OL

0 V

0 V

V

OH

0

CL Includes Probe and Jig Capacitance. See Test Table.

RL – See Test Table

t

PHL

1.3 V

1.3 V

1.3 V

0 V

1.3 V

0 V

1.3 V

1.3 V

Output

Output

t

PHL

Input

Control
Input
(Enable)

CL Includes Probe and Jig Capacitance

1.3 V

t

PHZ(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

t

PZH(E)

t

PZL(E)

t

PLH

Open for t

PZH(E

)

Test Only

0 V

V

OL

Figure 1. Three–State Enable Test Circuit and Waveforms

Figure 2. Propagation Delay Times Input to Output Waveforms and Test Circuit

Zo = 50 Ω
PRR p 1.0 MHz
50% Duty Cycle
t

TLH

, t

THL

p 6 ns

Pulse generator characteristics

Zo = 50 Ω
PRR p 1.0 MHz
50% Duty Cycle
t

TLH

, t

THL

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

916

K

PLANE

–T–

M

A

M

0.25 (0.010) T

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

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 PLP

–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

INCHESMILLIMETERS

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 648–08

ISSUE R

D SUFFIX

PLASTIC PACKAGE

CASE 751B–05

(SO–16)
ISSUE J

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and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters can and do vary in different
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AM26LS30/D

*AM26LS30/D*

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