5-402
FAST AND LS TTL DATA
BCD-TO-SEVEN-SEGMENT
DECODERS/DRIVERS
The SN54/74LS247 thru SN54/74LS249 are BCD-to-Seven-Segment
Decoder/Drivers.
The LS247 and LS248 are functionally and electrically identical to the LS47
and LS48 with the same pinout configuration. The LS249 is a 16-pin version
of the 14-pin LS49 and includes full functional capability for lamp test and
ripple blanking which was not available in the LS49.
The composition of all characters, except the 6 and 9 are identical between
the LS247, 248, 249 and the LS47, 48 and 49. The LS47 thru 49 compose
the and without tails, the LS247 thru 249 compose the and with
the tails. The LS247 has active-low outputs for direct drive of indicators. The
LS248 and 249 have active-high outputs for driving lamp buffers.
All types feature a lamp test input and have full ripple-blanking input/output
controls. On all types an automatic leading and/or trailing-edge zero-blanking
control (RBI and RBO) is incorporated and an overriding blanking input (BI)
is contained which may be used to control the lamp intensity by pulsing or to
inhibit the output's lamp test may be performed at any time when the BI/RBO
node is at high level. Segment identification and resultant displays are shown
below. Display pattern for BCD input counts above 9 are unique symbols to
authenticate input conditions.
LS247
Open-Collector Outputs Drive Indicators Directly
Lamp-Test Provision
Leading / Trailing Zero Suppression
LS248
Internal Pull-Ups Eliminate Need for External Resistors
Lamp-Test Provision
Leading / Trailing Zero Suppression
LS249
Open-Collector Outputs
Lamp-Test Provision
Leading / Trailing Zero Suppression
SEGMENT
IDENTIFICATION
0
1
2
3
4
5
6
7
8
9 10 11
12 13 14 15
a
b
c
d
e
f g
NUMERICAL DESIGNATIONS AND RESULTANT DISPLAYS
SN54/74LS247
SN54/74LS248
SN54/74LS249
BCD-TO-SEVEN-SEGMENT
DECODERS/ DRIVERS
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN
Plastic
SN74LSXXXDW SOIC
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
16
1
D SUFFIX
SOIC
CASE 751B-03
5-403
FAST AND LS TTL DATA
SN54/74LS247
SN54/74LS248
SN54/74LS249
SN54 / 74LS247
(TOP VIEW)
14
13
12
11
10
9
1
2
3
4
5
6
7
16
15
8
VCC
B
f
g
a
b
d
c
e
C
LAMP
TEST
RB
OUT
PUT
RB
IN
PUT
D
A
GND
INPUTS
INPUTS
OUTPUTS
f g a b c d e
B C LT RBORBI D A
BI/
14
13
12
11
10
9
1
2
3
4
5
6
7
16
15
8
VCC
B
f
g
a
b
d
c
e
C
LAMP
TEST
RB
OUT
PUT
RB
IN
PUT
D
A
GND
INPUTS
INPUTS
OUTPUTS
f g a b c d e
B C LT RBORBI D A
BI/
SN54 / 74LS248
SN54 / 74LS259
(TOP VIEW)
ALL CIRCUIT TYPES FEATURE LAMP INTENSITY MODULATION CAPABILITY
DRIVER OUTPUTS
TYPICAL
POWER
DISSIPATION
TYPE
ACTIVE
LEVEL
OUTPUT
CONFIGURATION
SINK
CURRENT
MAX
VOLTAGE
TYPICAL
POWER
DISSIPATION
SN54LS247
low
open-collector
12 mA
15 V
35 mW
SN54LS248
high
2.0 k
pull-up
2.0 mA
5.5 V
125 mW
SN54LS249
high
open-collector
4.0 mA
5.5 V
40 mW
SN74LS247
low
open-collector
24 mA
15 V
35 mW
SN74LS248
high
2.0 k
pull-up
6.0 mA
5.5 V
125 mW
SN74LS249
high
open-collector
8.0 mA
5.5 V
40 mW
INPUT
A
(7)
INPUT
B
INPUT
C
(1)
(2)
(6)
INPUT
D
(4)
BI/RBO
BLANKING
INPUT OR
RIPPLE BLANKING
OUTPUT
LAMP TEST
INPUT
(3)
RBI
RIPPLE BLANKING
INPUT
(5)
OUTPUT
(13)
a
(12) OUTPUT
b
(11) OUTPUT
c
(10) OUTPUT
d
(9)
OUTPUT
e
(15) OUTPUT
f
(14) OUTPUT
g
INPUT
A
(7)
INPUT
B
INPUT
C
(1)
(2)
(6)
INPUT
D
(4)
BLANKING
INPUT OR
RIPPLE BLANKING
OUTPUT
LAMP TEST
INPUT
(3)
RIPPLE BLANKING
INPUT
(5)
OUTPUT
(13)
a
(12) OUTPUT
b
(11) OUTPUT
c
(10) OUTPUT
d
(9)
OUTPUT
e
(15) OUTPUT
f
(14) OUTPUT
g
LOGIC DIAGRAM
LS247
LS248, LS249
5-404
FAST AND LS TTL DATA
SN54/74LS247
SN54/74LS248
SN54/74LS249
LS247
FUNCTION TABLE
DECIMAL
OR
FUNCTION
INPUTS
BI/RBO
OUTPUTS
NOTE
OR
FUNCTION
LT
RBI
D
C
B
A
BI/RBO
a
b
c
d
e
f
g
NOTE
0
H
H
L
L
L
L
H
ON
ON
ON
ON
ON
ON
OFF
1
H
X
L
L
L
H
H
OFF
ON
ON
OFF
OFF
OFF
OFF
2
H
X
L
L
H
L
H
ON
ON
OFF
ON
ON
OFF
ON
3
H
X
L
L
H
H
H
ON
ON
ON
ON
OFF
OFF
ON
4
H
X
L
H
L
L
H
OFF
ON
ON
OFF
OFF
ON
ON
5
H
X
L
H
L
H
H
ON
OFF
ON
ON
OFF
ON
ON
6
H
X
L
H
H
L
H
ON
OFF
ON
ON
ON
ON
ON
7
H
X
L
H
H
H
H
ON
ON
ON
OFF
OFF
OFF
OFF
1
8
H
X
H
L
L
L
H
ON
ON
ON
ON
ON
ON
ON
9
H
X
H
L
L
H
H
ON
ON
ON
ON
OFF
ON
ON
10
H
X
H
L
H
L
H
OFF
OFF
OFF
ON
ON
OFF
ON
11
H
X
H
L
H
H
H
OFF
OFF
ON
ON
OFF
OFF
ON
12
H
X
H
H
L
L
H
OFF
ON
OFF
OFF
OFF
ON
ON
13
H
X
H
H
L
H
H
ON
OFF
OFF
ON
OFF
ON
ON
14
H
X
H
H
H
L
H
OFF
OFF
OFF
ON
ON
ON
ON
15
H
X
H
H
H
H
H
OFF
OFF
OFF
OFF
OFF
OFF
OFF
BI
X
X
X
X
X
X
L
OFF
OFF
OFF
OFF
OFF
OFF
OFF
2
RBI
H
L
L
L
L
L
L
OFF
OFF
OFF
OFF
OFF
OFF
OFF
3
LT
L
X
X
X
X
X
H
ON
ON
ON
ON
ON
ON
ON
4
LS248, LS249
FUNCTION TABLE
DECIMAL
OR
FUNCTION
INPUTS
BI/RBO
OUTPUTS
NOTE
OR
FUNCTION
LT
RBI
D
C
B
A
BI/RBO
a
b
c
d
e
f
g
NOTE
0
H
H
L
L
L
L
H
H
H
H
H
H
H
L
1
1
H
X
L
L
L
H
H
L
H
H
L
L
L
L
1
2
H
X
L
L
H
L
H
H
H
L
H
H
L
H
3
H
X
L
L
H
H
H
H
H
H
H
L
L
H
4
H
X
L
H
L
L
H
L
H
H
L
L
H
H
5
H
X
L
H
L
H
H
H
L
H
H
L
H
H
6
H
X
L
H
H
L
H
H
L
H
H
H
H
H
7
H
X
L
H
H
H
H
H
H
H
L
L
L
L
1
8
H
X
H
L
L
L
H
H
H
H
H
H
H
H
9
H
X
H
L
L
H
H
H
H
H
H
L
H
H
10
H
X
H
L
H
L
H
L
L
L
H
H
L
H
11
H
X
H
L
H
H
H
L
L
H
H
L
L
H
12
H
X
H
H
L
L
H
L
H
L
L
L
H
H
13
H
X
H
H
L
H
H
H
L
L
H
L
H
H
14
H
X
H
H
H
L
H
L
L
L
H
H
H
H
15
H
X
H
H
H
H
H
L
L
L
L
L
L
L
BI
X
X
X
X
X
X
L
L
L
L
L
L
L
L
2
RBI
H
L
L
L
L
L
L
L
L
L
L
L
L
L
3
LT
L
X
X
X
X
X
H
H
H
H
H
H
H
H
4
H = HIGH Level, L = LOW Level, X = Irrelevant
NOTES: 1. The blanking input (BI) must be open or held at a high logic level when output functions 0 through 15 are desired. The ripple-blanking input (RBI) must
NOTES: 1.
be open or high if blanking of a decimal zero is not desired.
2. When a low logic level is applied directly to the blanking input (BI), all segment outputs are off regardless of the level of any other input.
3. When ripple-blanking input (RBI) and inputs A, B, C, and D are at a low level with the lamp test input high, all segment outputs go off and the
NOTES: 1.
ripple-blanking output (RBO) goes to a low level (response condition).
4. When the blanking input/ripple blanking output (BI/RBO) is open or held high and a low is applied to the lamp-test input, all segment outputs are on.
BI/RBO is wire-AND logic serving as blanking input (BI) and/or ripple-blanking output (RBO).
5-405
FAST AND LS TTL DATA
SN54/74LS247
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
55
0
25
25
125
70
C
IOH
Output Current -- High
BI / RBO
54, 74
50
A
IOL
Output Current -- Low
BI / RBO
54
74
1.6
3.2
mA
VO(off)
Off-State Output Voltage
a g
54, 74
15
V
IO(on)
On-State Output Current
a g
On-State Output Current
a g
54
74
12
24
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
VIL
Input LOW Voltage
74
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
0.65
1.5
V
VCC = MIN, IIN = 18 mA
VOH
Output HIGH Voltage
BI / RBO
54
2.4
4.2
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOH
Output HIGH Voltage
BI / RBO
74
2.4
4.2
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOL
Output LOW Voltage
BI / RBO
54, 74
0.25
0.4
V
IOL = 1.6 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
VOL
Output LOW Voltage
BI / RBO
74
0.35
0.5
V
IOL = 3.2 mA
VIN = VIL or VIH
per Truth Table
IO(off)
Off-State Output Current
a g
54, 74
250
A
VCC = MAX, VIH = 2.0 V,
VO(off) = 15 V, VIL = MAX
VO(on)
On-State Output Voltage
a g
54, 74
0.25
0.4
V
IO(on) = 12 mA
VCC = MIN, VIH = 2.0 V,
VIL per Truth Table
VO(on)
On-State Output Voltage
a g
74
0.35
0.5
V
IO(on) = 24 mA
VCC = MIN, VIH = 2.0 V,
VIL per Truth Table
IIH
Input HIGH Current
20
A
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
Any Input, except BI / RBO
0.4
mA
VCC = MAX, VIN = 0.4 V
IIL
BI / RBO
1.2
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current
BI / RBO (Note 1)
0.3
2.0
mA
VCC = MAX
ICC
Power Supply Current
7.0
13
mA
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(VCC = 5.0 V, TA = 25
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Turn-Off Time from A Input
Turn-On Time from A Input
100
100
ns
CL = 15 pF,
RL = 665
tPHL
tPLH
Turn-Off Time from RBI Input
Turn-On Time from RBI Input
100
100
ns
CL = 15 pF,
RL = 665
5-406
FAST AND LS TTL DATA
SN54/74LS248
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
55
0
25
25
125
70
C
IOH
Output Current -- High
BI / RBO
54, 74
50
A
OH
Output Current -- High
a g
54, 74
100
IOL
Output Current -- Low
BI / RBO
Output Current -- Low
BI / RBO
54
74
1.6
3.2
mA
Output Current -- Low
a g
Output Current -- Low
a g
54
74
2.0
6.0
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
VIL
Input LOW Voltage
74
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
0.65
1.5
V
VCC = MIN, IIN = 18 mA
VOH
Output HIGH Voltage
a g and BI / RBO
54
2.4
4.2
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOH
Output HIGH Voltage
a g and BI / RBO
74
2.4
4.2
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
IOH
Output Current
a g
54, 74
1.3
2.0
mA
VCC = MIN, VO = 0.85 V,
Input Conditions as for VOH
VOL
Output LOW Voltage
a g
54, 74
0.25
0.4
V
IOL = 2.0 mA
VCC = MIN, VIH = 2.0 V,
VIL = per Truth Table
VOL
74
0.35
0.5
V
IOL = 6.0 mA
VCC = MIN, VIH = 2.0 V,
VIL = per Truth Table
VOL
BI / RBO
54, 74
0.25
0.4
V
IOL = 1.6 mA
VIL = per Truth Table
74
0.35
0.5
V
IOL = 3.2 mA
IIH
Input HIGH Current
Any Input, except BI / RBO
20
A
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
Any Input, except BI / RBO
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
Any Input, except BI / RBO
0.4
mA
VCC = MAX, VIN = 0.4 V
IIL
BI / RBO
1.2
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current
BI / RBO (Note 1)
0.3
2.0
mA
VCC = MAX
ICC
Power Supply Current
25
38
mA
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(VCC = 5.0 V, TA = 25
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Propagation Delay Time, High-to-Low-Level Output from A Input
Propagation Delay Time, Low-to-High-Level Output from A Input
100
100
ns
CL = 15 pF
RL = 4.0 k
tPHL
tPLH
Propagation Delay Time, High-to-Low-Level Output from RBI Input
Propagation Delay Time, Low-to-High-Level Output from RBI Input
100
100
ns
CL = 15 pF
RL = 6.0 k
5-407
FAST AND LS TTL DATA
SN54/74LS249
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
55
0
25
25
125
70
C
IOH
Output Current -- High
BI / RBO
54, 74
50
A
IOL
Output Current -- Low
BI / RBO
Output Current -- Low
BI / RBO
54
74
1.6
3.2
mA
VOH
Output Voltage -- High
a g
54, 74
5.5
V
IOL
Output Current -- Low
a g
Output Current -- Low
a g
54
74
4.0
8.0
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
VIL
Input LOW Voltage
74
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
0.65
1.5
V
VCC = MIN, IIN = 18 mA
VOH
Output HIGH Voltage
BI / RBO
54
2.4
4.2
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOH
Output HIGH Voltage
BI / RBO
74
2.4
4.2
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
IOH
Output HIGH Current
a g
54, 74
250
A
VCC = MIN, VIH = 2.0 V,
VOH = 5.5 V, VIL = MAX
VOL
Output LOW Voltage
BI / RBO
54, 74
0.25
0.4
V
IOL = 1.6 mA
VCC = MIN, VIH = 2.0 V,
VIL = per Truth Table
VOL
74
0.35
0.5
V
IOL = 3.2 mA
VCC = MIN, VIH = 2.0 V,
VIL = per Truth Table
VOL
a g
54, 74
0.25
0.4
V
IOL = 4.0 mA
VIL = per Truth Table
74
0.35
0.5
V
IOL = 8.0 mA
IIH
Input HIGH Current
Any Input, except BI / RBO
20
A
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
Any Input, except BI / RBO
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
Any Input, except BI / RBO
0.4
mA
VCC = MAX, VIN = 0.4 V
IIL
BI / RBO
1.2
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current
BI / RBO (Note 1)
0.3
2.0
mA
VCC = MAX
ICC
Power Supply Current
8.0
15
mA
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(VCC = 5.0 V, TA = 25
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tPHL
tPLH
Propagation Delay Time, High-to-Low-Level Output from A Input
Propagation Delay Time, Low-to-High-Level Output from A Input
100
100
ns
CL = 15 pF, RL = 2.0
tPHL
tPLH
Propagation Delay Time, High-to-Low-Level Output from RBI Input
Propagation Delay Time, Low-to-High-Level Output from RBI Input
100
100
ns
CL = 15 pF, RL = 6.0
5-408
FAST AND LS TTL DATA
MIN
MIN
MAX
MAX
MILLIMETERS
INCHES
DIM
A
B
C
D
F
G
J
K
M
P
R
9.80
3.80
1.35
0.35
0.40
0.19
0.10
0
5.80
0.25
10.00
4.00
1.75
0.49
1.25
0.25
0.25
7
6.20
0.50
0.386
0.150
0.054
0.014
0.016
0.008
0.004
0
0.229
0.010
0.393
0.157
0.068
0.019
0.049
0.009
0.009
7
0.244
0.019
1.27 BSC
0.050 BSC
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. 751B 01 IS OBSOLETE, NEW STANDARD
751B 03.
1
8
9
16
-A-
-B-
P
16 PL
D
-T-
K
C
G
M
R X 45
F
J
8 PL
SEATING
PLANE
Case 751B-03 D Suffix
16-Pin Plastic
SO-16
B
0.25 (0.010)
M
M
T
0.25 (0.010)
B
A
M
S
S
Case 648-08 N Suffix
16-Pin Plastic
MIN
MIN
MAX
MAX
MILLIMETERS
INCHES
DIM
A
B
C
D
F
G
H
J
K
L
M
S
18.80
6.35
3.69
0.39
1.02
0.21
2.80
7.50
0
0.51
19.55
6.85
4.44
0.53
1.77
0.38
3.30
7.74
10
1.01
0.740
0.250
0.145
0.015
0.040
0.008
0.110
0.295
0
0.020
0.770
0.270
0.175
0.021
0.070
0.015
0.130
0.305
10
0.040
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.
6. 648 01 THRU 07 OBSOLETE, NEW STANDARD
648 08.
2.54 BSC
1.27 BSC
0.100 BSC
0.050 BSC
-A-
B
1
8
9
16
F
H
G
D
16 PL
S
C
-T-
SEATING
PLANE
K
J
M
L
T A
0.25 (0.010)
M
M
Case 620-09 J Suffix
16-Pin Ceramic Dual In-Line
MIN
MIN
MAX
MAX
MILLIMETERS
INCHES
DIM
19.05
6.10
0.39
1.40
0.23
0
0.39
19.55
7.36
4.19
0.53
1.77
0.27
5.08
15
0.88
0.750
0.240
0.015
0.055
0.009
0
0.015
0.770
0.290
0.165
0.021
0.070
0.011
0.200
15
0.035
1.27 BSC
2.54 BSC
7.62 BSC
0.050 BSC
0.100 BSC
0.300 BSC
A
B
C
D
E
F
G
J
K
L
M
N
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIM F MAY NARROW TO 0.76 (0.030) WHERE
THE LEAD ENTERS THE CERAMIC BODY.
5. 620 01 THRU 08 OBSOLETE, NEW STANDARD
620 09.
-B-
-A-
16 PL
-T-
C
D
E
F
G
J
K
M
N
SEATING
PLANE
16 PL
L
16
9
1
8
0.25 (0.010)
T A
M
S
0.25 (0.010)
T B
M
S
5-409
FAST AND LS TTL DATA
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