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Motorola Inc |
Order this document by AM26LS31/D
Quad Line Driver with NAND
Enabled Three-State Outputs
AM26LS31
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
t• Meets Full VO = 6.0 V, VCC = 0 V, IO 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
QUAD EIA–422 LINE DRIVER
WITH THREE–STATE OUTPUTS
SEMICONDUCTOR
TECHNICAL DATA
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
PC SUFFIX
PLASTIC PACKAGE
CASE 648
Representative Block Diagrams
Non–Inverting
Input Outputs
Enable
Output
Controls
Enable
Inverting
Input
H
L
X
TRUTH TABLE
Control
lnputs
(E/E)
Non–Inverting Inverting
Output
Output
H/L H
H/L L
L/H Z
L
H
Z
L = Low Logic State
H = High Logic State
X = Irrelevant
Z = Third–State (High Impedance)
* 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 ANALOG IC DEVICE DATA
PIN CONNECTIONS
Input A 1
2
Outputs A
3
Enable 4
5
Outputs B
6
Input B 7
Gnd 8
16 VCC
15 Input D
14
Outputs D
13
12 Enable
11
Outputs C
10
9 Input C
ORDERING INFORMATION
Device
Operating
Temperature Range Package
AM26LS31PC
MC26LS31D*
TA = 0 to +70°C
Plastic DIP
SO–16
© Motorola, Inc. 1995
1
AM26LS31
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
Input Voltage
Operating Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
VCC
VI
TA
TJ
Tstg
8.0
5.5
0 to + 70
150
– 65 to + 150
Vdc
Vdc
°C
°C
°C
p p p pELECTRICAL CHARACTERISTICS (Unless otherwise noted, specifications apply 4.75 V VCC 5.25 V and 0°C TA 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
Input Voltage – High Logic State
Input Current – Low Logic State
(VIL = 0.4 V)
Input Current – High Logic State
(VIH = 2.7 V)
(VIH = 7.0 V)
Input Clamp Voltage
(IIK = – 18 mA)
Output Voltage – Low Logic State
(IOL = 20 mA)
Output Voltage – High Logic State
(IOH = –20 mA)
Output Short Circuit Current
(VIH = 2.0 V) Note 1
Output Leakage Current – Hi–Z 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)
Output Leakage Current – Power OFF
(VOH = 6.0 V, VCC = 0 V)
(VOL = – 0.25 V, VCC = 0 V)
Output Offset Voltage Difference, Note 2
Output Differential Voltage, Note 2
Output Differential Voltage Difference, Note 2
Power Supply Current
(Output Disabled) Note 3
VIL
VIH
IIL
IIH
VIK
VOL
VOH
IOS
IO(Z)
IO(off)
VOS – VOS
VOD
∆VOD
ICCX
–
2.0
–
–
–
–
–
2.5
– 30
–
–
–
–
–
2.0
–
–
– 0.8 Vdc
– – Vdc
–
– 360
µA
µA
– + 20
– + 100
– – 1.5 V
– 0.5 V
––V
–
– 150
mA
µA
– – 20
– + 20
µA
– + 100
– – 100
"– 0.4 V
––V
– ± 0.4 V
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 (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
–
–
ns
– 20
– 20
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)
tPHZ(E)
tPLZ(E)
tPZH(E)
tPZL(E)
–
–
–
–
ns
– 30
– 35
– 40
– 45
2 MOTOROLA ANALOG IC DEVICE DATA
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