MOTOROLA MC26C31D

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by MC26C31/D
SEMICONDUCTOR TECHNICAL DATA
Product Preview
P SUFFIX
PLASTIC DIP
CASE 648
CMOS
16
The MC26C31 is a quad differential line driver designed for digital data
transmission over balanced lines. The MC26C31 meets all the requirements of
standard EIA–422–A while retaining the low–power characteristics of CMOS.
The MC26C31 accepts TTL or CMOS input levels and translates these to
EIA–422–A output level. This part uses special output circuitry that enables the
individual drivers to power down without loading down the bus. The MC26C31
also includes special circuitry which will set the outputs to a high impedance
mode during power up or down, preventing spurious glitches. This device has
enable and disable circuitry common for all four drivers.
The MC26C31 is pin compatible with the AM26LS31.
All pins are protected against damage due to electrostatic discharges.
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1
D SUFFIX
SOG PACKAGE
CASE 751B
16
1
ORDERING INFORMATION
MC26C31P
MC26C31D
Plastic DIP
SOG Package
Maximum Supply Current: 3 mA
2000 V ESD Protection on the Inputs and Outputs
TTL/CMOS Input Compatible
Typical Propagation Delay: 6 ns
Typical Output Skew: 1 ns
Meets VO = 6.0 V (and VO = 0.25 V), VCC = 0 V, IO < 100 µA Requirement
Meets the Requirements of Standard EIA–422–A
Operation from Single 5 V Supply
High Impedance Mode for Outputs Connected to System Buses
BLOCK DIAGRAM
ENB
12
ENB
INPUT D
4
8
16
GND
VCC
INPUT C
15
14
INPUT B
9
13
10
INPUT A
7
11
6
1
5
2
3
OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
D2
D1
C2
C1
B2
B1
A2
A1
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
REV 3
1993

Motorola, Inc. 1995
MOTOROLA
MC26C31
1
TRUTH TABLE
Control Inputs E/E
Input
Non–Inverting
Output
Inverting
Output
L/H
X
Z
Z
All other combinations of
enable inputs
H
H
L
L
L
H
X = Don’t Care
Z = High Impedance
H = High Logic State
L = Low Logic State
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VCC
7
V
DC Input Voltage
Vin
– 1.5 to VCC + 1.5
V
DC Output Voltage*
Vout
– 0.5 to VCC + 0.5
V
DC Output Current, per Pin
Iout
150
mA
DC VCC or GND Current, per Pin
IDD
150
mA
Storage Temperature
Tstg
– 65 to + 150
°C
Power Dissipation
PD
500
mW
2000
V
Power Supply Voltage
ESD (Human Body Model)
This device contains circuitry to protect the
inputs against damage due to high static voltages or electric fields; however, it is advised that
normal precautions be taken to avoid applications of any voltage higher than the maximum
rated voltages to this high impedance circuit.
For proper operation it is recommended that
Vin and Vout be constrained to the range VSS ≤
(Vin or Vout) ≤ VDD. Reliability of operation is
enhanced if unused inputs are tied to and
appropriate logic voltage level (e.g., either VSS
or VDD).
* Power–on conditions.
OPERATING CONDITIONS
Rating
Symbol
Min
Max
Unit
VCC
4.5
5.5
V
DC Input Voltage
Vin
0
VCC
V
Operating Temperature Range
TA
– 40
+ 85
°C
Input Rise and Fall Time
tr, tf
—
500
ns
Power Supply Voltage
DC CHARACTERISTICS (VCC = 4.5 to 5.5 V, TA = – 40 to + 85°C, unless otherwise stated)
Symbol
Min
Typ
Max
Unit
Input Voltage (Low Logic State)
VIL
—
—
0.8
V
Input Voltage (High Logic State)
VIH
2.0
—
—
V
Output Voltage (Low Logic State) Isink = 20 mA
VOL
—
0.3
0.5
V
Output Voltage (High Logic State) Isource = 20 mA
VOH
2.5
2.8
—
V
Output Differential Voltage RL = 100 Ω (Note 1)
VOD
2.0
—
—
V
D(VOD)
—
—
± 0.4
V
VOS
—
—
3.0
V
D(VOS)
—
—
± 0.4
V
Iin
—
—
± 1.0
µA
Quiescent Supply Current Iout = 0 µA
ICC
—
—
3.0
mA
Output Short Circuit Current (Note 2)
IOS
– 30
– 100
– 150
mA
IO(Z)
—
—
± 1.0
µA
Ioxh
Ioxl
—
—
—
—
100
– 100
µA
Parameter
Output Differential Voltage Difference RL = 100 Ω (Note 1)
Output Offset Voltage RL = 100 Ω (Note 1)
Output Offset Voltage Difference RL = 100 Ω (Note 1)
Input Current VIH = VCC, GND, VIH or VIL
Output Leakage Current (High–Z State) Vout = VCC or GND
Input Leakage Current (Power Off)
Vout = 6 V
Vout = – 0.25 V
NOTES:
1. See EIA specifications EIA–422–A for exact test conditions.
2. Only one output may be shorted at a time.
MC26C31
2
MOTOROLA
AC CHARACTERISTICS (VCC = 4.5 to 5.5 V, TA = – 40 to + 85°C, unless otherwise stated)
Parameter
Symbol
Min
Typ
Max
Unit
Propagation Delay Input to Output (S1 Open)
tPLH
tPHL
—
6
12
ns
Output Skew (S1 Open)*
Skew
—
1.0
4
ns
Differential Output
Rise Time
Fall Time (S1 Open)
t(TLH)
t(THL)
—
4
8
ns
Output Enable Time
(S1 Closed)
tPZH
tPZL
—
—
16
15
—
—
ns
Output Disable Time
(S1 Closed)
tPHZ
tPLZ
—
—
6
9
—
—
ns
* Skew: difference in propagation delays between complementary outputs.
AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS
3V—
INPUT
0V
1.5 V
1.5 V
tPLH
1.5 V
47 pF
INPUT
49.9 Ω
499 Ω
47 pF
— VOH
OUTPUT A
1.5 V
1.5 V
VOL
SKEW
tPHL
S1
49.9 Ω
47 pF
tPHL
VOH
1.5 V
— VOL
1.5 V
OUTPUT B
Figure 1. AC Test Circuit
tPLH
Figure 2. Propagation Delays and Skew Waveforms
3V—
ENABLE INPUT
1.5 V
1.5 V
0V
tPLZ
OUTPUT A
tPZL
VOL + 0.5 V
tPHZ
OUTPUT B
3V—
— 1.5 V
0.8 V
VOL
INPUT
VOH
2.0 V
— 1.5 V
OUTPUT
(DIFFERENTIAL)
0V
tPZH
VOH – 0.5 V
Figure 3. Enable and Disable Times
90%
90%
10%
10%
tTLH
tTHL
Figure 4. Differential Rise and Fall Times
TYPICAL APPLICATIONS
ENABLE
+
DATA
–
DATA
OUTPUT
Figure 5. Two–Wire Balanced Systems (EIA–422–A)
MOTOROLA
MC26C31
3
PACKAGE DIMENSIONS
P SUFFIX
PLASTIC DIP
CASE 648–08
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–
16
9
1
8
B
F
C
DIM
A
B
C
D
F
G
H
J
K
L
M
S
L
S
–T–
SEATING
PLANE
K
H
G
D
M
J
16 PL
0.25 (0.010)
M
T A
M
INCHES
MIN
MAX
0.740
0.770
0.250
0.270
0.145
0.175
0.015
0.021
0.040
0.70
0.100 BSC
0.050 BSC
0.008
0.015
0.110
0.130
0.295
0.305
0_
10 _
0.020
0.040
MILLIMETERS
MIN
MAX
18.80
19.55
6.35
6.85
3.69
4.44
0.39
0.53
1.02
1.77
2.54 BSC
1.27 BSC
0.21
0.38
2.80
3.30
7.50
7.74
0_
10 _
0.51
1.01
D SUFFIX
SOG PACKAGE
CASE 751B–05
–A–
16
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.
9
–B–
1
P
8 PL
0.25 (0.010)
8
M
B
S
G
R
K
F
X 45 _
C
–T–
SEATING
PLANE
M
D
16 PL
0.25 (0.010)
M
T B
S
A
S
J
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
9.80
10.00
3.80
4.00
1.35
1.75
0.35
0.49
0.40
1.25
1.27 BSC
0.19
0.25
0.10
0.25
0_
7_
5.80
6.20
0.25
0.50
INCHES
MIN
MAX
0.386
0.393
0.150
0.157
0.054
0.068
0.014
0.019
0.016
0.049
0.050 BSC
0.008
0.009
0.004
0.009
0_
7_
0.229
0.244
0.010
0.019
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
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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systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
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unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
MC26C31
4
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*MC26C31/D*
MC26C31/D
MOTOROLA