mc74ac257 ON Semiconductor, mc74ac257 Datasheet - Page 10

• Manufacturer Part Number: mc74ac257
• Description: Quad 2input Multiplexer With 3state Outputs
• Manufacturer: ON Semiconductor

−T−
e
0.15 (0.006) T
0.15 (0.006) T
16
0.10 (0.004)
1
SEATING
PLANE
0.13 (0.005)
Z
b
L
U
U
D
PIN 1
IDENT.
D
M
S
S
2X
L/2
C
16
1
9
8
A
E
16X
0.10 (0.004)
A
H
1
K
−V−
E
0.10 (0.004)
REF
A
VIEW P
16 PIN PLASTIC TSSOP PACKAGE
G
16 PIN PLASTIC EIAJ PACKAGE
PACKAGE DIMENSIONS
M
8
9
M
_
T
http://onsemi.com
L
−U−
E
CASE948F−01
U
B
CASE966−01
DT SUFFIX
TSSOP−16
M SUFFIX
H
S
ISSUE O
ISSUE O
EIAJ−16
N
L
DETAIL P
V
10
N
DETAIL E
J
S
DETAIL E
J1
F
0.25 (0.010)
Q
1
SECTION N−N
Ç Ç Ç
É É É
Ç Ç Ç
É É É
c
M
K1
K
−W−
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
4. TERMINAL NUMBERS ARE SHOWN FOR
5. THE LEAD WIDTH DIMENSION (b) DOES NOT
Y14.5M, 1982.
FLASH OR PROTRUSIONS AND ARE MEASURED
AT THE PARTING LINE. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006)
PER SIDE.
REFERENCE ONLY.
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSIONS AND ADJACENT LEAD
TO BE 0.46 ( 0.018).
DIM
H
A
A
D
E
L
M
NOTES:
b
c
e
L
Q
Z
E
E
1
1
1. DIMENSIONING AND TOLERANCING PER ANSI
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD FLASH.
4. DIMENSION B DOES NOT INCLUDE INTERLEAD
5. DIMENSION K DOES NOT INCLUDE DAMBAR
6. TERMINAL NUMBERS ARE SHOWN FOR
7. DIMENSION A AND B ARE TO BE DETERMINED
Y14.5M, 1982.
PROTRUSIONS OR GATE BURRS. MOLD FLASH
OR GATE BURRS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED
0.25 (0.010) PER SIDE.
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
REFERENCE ONLY.
AT DATUM PLANE −W−.
DIM
J1
K1
MILLIMETERS
MIN
A
B
C
D
G
H
K
M
0.05
0.35
0.18
9.90
5.10
7.40
0.50
0.70
F
J
L
1.10
−−−
−−−
0
1.27 BSC
_
MILLIMETERS
MIN
4.90
4.30
0.05
0.50
0.18
0.09
0.09
0.19
0.19
−−−
0
10.50
0.65 BSC
6.40 BSC
MAX
10
2.05
0.20
0.50
0.27
5.45
8.20
0.85
1.50
0.90
0.78
_
_
MAX
5.10
4.50
1.20
0.15
0.75
0.28
0.20
0.16
0.30
0.25
8
0.002
0.014
0.007
0.390
0.201
0.291
0.020
0.043
0.028
MIN
_
−−−
−−−
0.050 BSC
0
INCHES
_
0.193
0.169
0.002
0.020
0.007
0.004
0.004
0.007
0.007
MIN
−−−
0.026 BSC
0.252 BSC
0
MAX
0.081
0.008
0.020
0.011
0.413
0.215
0.323
0.033
0.059
0.035
0.031
10
INCHES
_
_
MAX
0.200
0.177
0.047
0.006
0.030
0.011
0.008
0.006
0.012
0.010
8
_