MOTOROLA MC26C32D Quad eia-422-a line receiver Datasheet

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by MC26C32/D
SEMICONDUCTOR TECHNICAL DATA
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P SUFFIX
PLASTIC DIP
CASE 648
CMOS
16
The MC26C32 is a quad differential line receiver designed for digital data
transmission over balanced lines. The MC26C32 meets all the requirements of
standard EIA–422–A while retaining the low–power characteristics of CMOS.
The MC26C32 has an input sensitivity of 200 mV over the common mode
input voltage range of ± 7 V. In addition, each receiver chain has internal
hysteresis circuitry to improve noise margin and discourage output instability for
slowly changing input waveforms.
The MC26C32 is pin compatible with the AM26LS32.
All pins are protected against damage due to electrostatic discharges.
•
•
•
•
•
•
•
•
Typical Power Supply Current: 6 mA
2000 V ESD Protection on the Inputs and Outputs
Typical Propagation Delay: 18 ns
Typical Input Hysteresis: 75 mV
Meets the Requirements of Standard EIA–422–A
Operation from Single 5 V Supply
High Impedance Mode for Outputs Connected to System Buses
TTL/CMOS Compatible Outputs
1
D SUFFIX
SOG PACKAGE
CASE 751B
16
1
ORDERING INFORMATION
MC26C32P
MC26C32D
Plastic DIP
SOG Package
BLOCK DIAGRAM
ENB
12
ENB
4
INPUT INPUT
D2
D1
10
9
+ –
8
16
GND
VCC
11
OUTPUT
D
INPUT INPUT
C1
C2
6
7
+ –
5
OUTPUT
C
INPUT INPUT
B1
B2
14
15
+ –
13
OUTPUT
B
INPUT INPUT
A1
A2
2
1
+ –
3
OUTPUT
A
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
REV 4
10/95

Motorola, Inc. 1995
MOTOROLA
MC26C32
1
TRUTH TABLE
Control Inputs E/E
Input
Output
L/H
X
Z
All other combinations of
enable inputs
VID ≥ VTH (max)
1
VID ≥ VTH (min)
0
Open
1
X = Don’t Care
Z = High Impedance
H = High Logic State
L = Low Logic State
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VCC
7
V
VI
± 10
V
Input Differential Voltage
VID
± 14
V
Enable Control Input Voltage
Vin
VCC + 0.5
V
Storage Temperature
Tstg
– 65 to + 150
°C
± 25
mA
2000
V
Power Supply Voltage
Input Voltage
Maximum Current per Output
IO
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).
OPERATING CONDITIONS
Rating
Symbol
Min
Max
Unit
VCC
4.5
5.5
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) (See Note 1)
Symbol
Min
Typ
Max
Unit
ICC
—
6
12
mA
LI
—
—
± 1.0
µA
Input Voltage — Low Logic State (Enable Control)
VIL
—
—
0.8
V
Input Voltage — High Logic State (Enable Control)
VIH
2
—
—
V
VTH
0.2
—
—
—
—
– 0.2
V
Vhys
—
75
—
mV
Iin
—
—
1.4
– 2.5
—
—
mA
Comparator Input Resistance, – 10 V < VLCM < + 10 V
Rin
4
4.8
—
kΩ
Output Voltage (Low Logic State) VID = – 1 V, Iout = 6 mA (Note 2)
VOL
—
0.13
0.33
V
Output Voltage (High Logic State) VID = + 1 V, Iout = – 6 mA (Note 2)
VOH
3.8
4.8
—
V
Output Leakage Current (High Logic State) Vout = VCC or GND
IOZ
–5
—
5
µA
Parameter
Power Supply Current, VCC ≥ Max
Enable Input Current, Vin = VCC or GND
Differential Input Voltage, – 7 V < VLCM < 7 V
Vout = VOH
Vout = VOL
Input Hysteresis, VLCM = 0 V
Comparator Input Current
Vin = + 10 V, Other Input = GND
Vin = – 10 V, Other Input = GND
NOTES:
1. All currents into device pins are shown as positive, out of device pins are negative. All voltages referenced to ground unless otherwise noted.
2. See EIA specifications EIA–422–A for exact test conditions.
MC26C32
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, CL = 50 pF, VDIFF = 2.5 V
tPLH
tPHL
—
18
30
ns
Skew = tPHL – tPLH
Skew
—
1
—
ns
Propagation Delay Enable to Output
CL = 50 pF, RL = 1000 Ω, VDIFF = 2.5 V
tPLZ
tPHZ
—
12
—
ns
Propagation Delay Enable to Output
CL = 50 pF, RL = 1000 Ω, VDIFF = 2.5 V
tPZL
tPZH
—
14
—
ns
* Skew: difference in propagation delays between complementary outputs.
AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS
TEST
POINT
VCC
OUTPUT
CL = 49 pF
S1
RL = 2 kΩ
+ 2.5 V —
INPUT
– 2.5 V
0V
0V
tPLH
4.9 kΩ
1.3 V
OUTPUT
1.3 V
S1 AND S2 CLOSED
S2
Figure 1. Test Circuit
3V—
ENABLE INPUT
tPHL
Figure 2. Propagation Delays
1.3 V
1.3 V
0V
tPZH
OUTPUT A
50%
S1 OPEN
S2 CLOSED
tPZL
OUTPUT B
50% S1 CLOSED
S2 OPEN
tPHZ
S1 CLOSED
S2 CLOSED
0.5 V
VOL
tPLZ
S1 CLOSED
S2 CLOSED
VOH
0.5 V
Figure 3. Enable and Disable Times
TYPICAL APPLICATIONS
ENABLE
+
DATA
–
DATA
OUTPUT
Figure 4. Two–Wire Balanced Systems (EIA–422–A)
MOTOROLA
MC26C32
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)
T B
M
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
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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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MC26C32
4
◊
*MC26C32/D*
MC26C32/D
MOTOROLA
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