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參數(shù)資料
| 型號(hào)： | MC44251FU |
| 廠商： | MOTOROLA INC |
| 元件分類： | ADC |
| 英文描述： | Triple 8-Bit Video ADC Three-State Outputs |
| 中文描述： | TRIPLE 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁(yè)數(shù)： | 16/18頁(yè) |
| 文件大小： | 273K |
| 代理商： | MC44251FU |
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MC44251
16
MOTOROLA
PACKAGE DIMENSIONS
FN SUFFIX
PLCC PACKAGE (PLASTIC LEAD CHIP CARRIER)
CASE 777–02
NOTES:
1. DATUMS –L–, –M–, AND –N– ARE 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
(0.25) 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).
–N–
–L–
–M–
D
Y
D
K
V
W
1
44
BRK
B
Z
U
X
VIEW D–D
S
L–M
M
0.007(0.180)
N
S
T
S
L–M
M
0.007(0.180)
N
S
T
G1
0.010 (0.25)
S
L–M
S
N
S
T
K1
F
H
S
L–M
M
0.007(0.180)
N
S
T
Z
G
G1
R
A
E
J
VIEW S
C
S
L–M
M
0.007(0.180)
N
S
T
S
L–M
M
0.007(0.180)
N
S
T
0.004 (0.10)
–T–
SEATING
PLANE
VIEW S
DIM
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
G1
K1
MIN
0.685
0.685
0.165
0.090
0.013
0.050 BSC
0.026
0.020
0.025
0.650
0.650
0.042
0.042
0.042
–––
2
0.610
0.040
MAX
0.695
0.695
0.180
0.110
0.019
MIN
17.40
17.40
4.20
2.29
0.33
MAX
17.65
17.65
4.57
2.79
0.48
MILLIMETERS
INCHES
1.27 BSC
0.66
0.51
0.64
16.51
16.51
1.07
1.07
1.07
–––
2
15.50
1.02
0.032
–––
–––
0.656
0.656
0.048
0.048
0.056
0.020
10
0.630
–––
0.81
–––
–––
16.66
16.66
1.21
1.21
1.42
0.50
10
16.00
–––
S
L–M
S
0.010 (0.25)
N
S
T
S
L–M
M
0.007(0.180)
N
S
T
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