inputs to a binary coded output. The output code is that
of the highest order input. Any input of lower priority is
ignored. Each output incorporates a latch allowing
synchronous operation. When the clock is low the outputs
follow the inputs and latch when the clock goes high. This
device is very useful for a variety of applications in
checking system status in control processors, peripheral
controllers, and testing systems.
The input is active when high, (e.g., the three binary
outputs are low when input D0 is high). The Q3 output is
high when any input is high. This allows direct extension
into another priority encoder when more than eight inputs
are necessary. The MC10H165 can also be used to
develop binary codes from random logic inputs, for
addressing ROMs, RAMs, or for multiplexing data.
LOGIC DIAGRAM
C4
VCC1 = PIN 1
VCC2 = PIN 16
. VEE = PIN 8
D0 5
D1 7
3 Q0
D2 13
D3 10
D4 11
2 Q1
D5 12
15 Q2
D6 9
D7 6
14 Q3
Numbers at ends of terminals denote pin numbers for L and P packages.
MOTOROLA
2–262
MECL Data
DL122 — Rev 6
MC10H165
APPLICATION INFORMATION
A typical application of the MC10H165 is the decoding
of system status on a priority basis. A 64–line priority
encoder is shown in the figure below. System status lines
are connected to this encoder such that, when a given
condition exists, the respective input will be at a logic high
level. This scheme will select the one of 64 different
system conditions, as represented at the encoder inputs,
which has priority in determining the next system
operation to be performed. The binary code showing the
address of the highest priority input present will appear at
the encoder outputs to control other system logic
functions.
64–LINE PRIORITY ENCODER
LSB
Z
MC10H164
1/2 MC10H101
System
Clock
C
D0
Highest
Priority
Input
MC10H165
Q0
Q1
Q2
Q3
X0 . . . . . . . X7 A B C
Z
MC10H164
X0 . . . . . . . X7 A B C
Z
MC10H164
X0 . . . . . . . X7 A B C
Six bit output
word yielding
number of
highest priority
channel present
at input
D7
C
D0
MC10H165
C
D0
Q0
Q1
Q2
MSB
Q0
Q1
Q2
Q3
D7
D7
C
D0
MC10H165
MC10H165
MC10H165
MC10H165
MC10H165
MC10H165
Q0
Q1
Q2
Q3
D7
C
D0
Q0
Q1
Q2
Q3
D7
C
D0
Q0
Q1
Q2
Q3
D7
C
D0
Q0
Q1
Q2
Q3
D7
C
D0
Q0
Q1
Q2
Q3
D7
C
Lowest
Priority
Input
D0
Q0
Q1
Q2
Q3
D7
MECL Data
DL122 — Rev 6
2–263
MOTOROLA
MC10H165
OUTLINE DIMENSIONS
FN SUFFIX
PLASTIC PLCC PACKAGE
CASE 775–02
ISSUE C
B
–N–
Y BRK
D
–L–
–M–
W
D
Z
0.007 (0.180)
M
T L–M
U
S
N
S
S
0.007 (0.180)
M
T L–M
N
S
20
1
X
V
VIEW D–D
G1
0.010 (0.250)
S
T L–M
S
N
S
A
Z
R
0.007 (0.180)
M
T L–M
0.007 (0.180)
M
T L–M
S
N
N
S
S
S
H
0.007 (0.180)
M
T L–M
S
N
S
C
E
0.004 (0.100)
G
G1
0.010 (0.250)
S
T L–M
J
–T–
SEATING
PLANE
K1
K
F
VIEW S
0.007 (0.180)
M
VIEW S
S
T L–M
S
N
S
N
S
NOTES:
1. DATUMS –L–, –M–, AND –N– DETERMINED
WHERE TOP OF LEAD SHOULDER EXITS PLASTIC
BODY AT MOLD PARTING LINE.
2. DIMENSION G1, TRUE POSITION TO BE
MEASURED AT DATUM –T–, SEATING PLANE.
3. DIMENSIONS R AND U DO NOT INCLUDE MOLD
FLASH. ALLOWABLE MOLD FLASH IS 0.010 (0.250)
PER SIDE.
4. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
5. CONTROLLING DIMENSION: INCH.
6. THE PACKAGE TOP MAY BE SMALLER THAN THE
PACKAGE BOTTOM BY UP TO 0.012 (0.300).
DIMENSIONS R AND U ARE DETERMINED AT THE
OUTERMOST EXTREMES OF THE PLASTIC BODY
EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS,
GATE BURRS AND INTERLEAD FLASH, BUT
INCLUDING ANY MISMATCH BETWEEN THE TOP
AND BOTTOM OF THE PLASTIC BODY.
7. DIMENSION H DOES NOT INCLUDE DAMBAR
PROTRUSION OR INTRUSION. THE DAMBAR
PROTRUSION(S) SHALL NOT CAUSE THE H
DIMENSION TO BE GREATER THAN 0.037 (0.940).
THE DAMBAR INTRUSION(S) SHALL NOT CAUSE
THE H DIMENSION TO BE SMALLER THAN 0.025
(0.635).
DIM
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
G1
K1
INCHES
MIN
MAX
0.385
0.395
0.385
0.395
0.165
0.180
0.090
0.110
0.013
0.019
0.050 BSC
0.026
0.032
0.020
–––
0.025
–––
0.350
0.356
0.350
0.356
0.042
0.048
0.042
0.048
0.042
0.056
–––
0.020
2
_
10
_
0.310
0.330
0.040
–––
MILLIMETERS
MIN
MAX
9.78
10.03
9.78
10.03
4.20
4.57
2.29
2.79
0.33
0.48
1.27 BSC
0.66
0.81
0.51
–––
0.64
–––
8.89
9.04
8.89
9.04
1.07
1.21
1.07
1.21
1.07
1.42
–––
0.50
2
_
10
_
7.88
8.38
1.02
–––
MOTOROLA
2–264
MECL Data
DL122 — Rev 6
MC10H165
OUTLINE DIMENSIONS
L SUFFIX
CERAMIC DIP PACKAGE
CASE 620–10
ISSUE V
9
–A–
16
–B–
1
8
C
L
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. DIMENSION F MAY NARROW TO 0.76 (0.030)
WHERE THE LEAD ENTERS THE CERAMIC
BODY.
DIM
A
B
C
D
E
F
G
H
K
L
M
N
INCHES
MIN
MAX
0.750
0.785
0.240
0.295
–––
0.200
0.015
0.020
0.050 BSC
0.055
0.065
0.100 BSC
0.008
0.015
0.125
0.170
0.300 BSC
0
_
15
_
0.020
0.040
MILLIMETERS
MIN
MAX
19.05
19.93
6.10
7.49
–––
5.08
0.39
0.50
1.27 BSC
1.40
1.65
2.54 BSC
0.21
0.38
3.18
4.31
7.62 BSC
0
_
15
_
0.51
1.01
–T–
SEATING
PLANE
N
E
F
D
G
16 PL
K
M
J
16 PL
0.25 (0.010)
M
M
T B
S
0.25 (0.010)
T A
S
–A–
16
9
P SUFFIX
PLASTIC DIP PACKAGE
CASE 648–08
ISSUE R
B
1
8
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.
DIM
A
B
C
D
F
G
H
J
K
L
M
S
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
F
S
C
L
–T–
H
G
D
16 PL
SEATING
PLANE
K
J
T A
M
M
0.25 (0.010)
M
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 which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in 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 the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such 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. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE/Locations Not Listed:
Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454
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