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參數資料
| 型號： | MCM62486BFN19 |
| 廠商： | MOTOROLA INC |
| 元件分類： | SRAM |
| 英文描述： | Replaced by PTH12000W : |
| 中文描述： | 32K X 9 CACHE SRAM, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數： | 11/12頁 |
| 文件大小： | 197K |
| 代理商： | MCM62486BFN19 |
MCM62486B
11
MOTOROLA FAST SRAM
PACKAGE DIMENSIONS
FN PACKAGE
44–LEAD PLCC
CASE 777–02
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
G1
K1
MIN
17.40
17.40
4.20
2.29
0.33
MIN
0.685
0.685
0.165
0.090
0.013
MAX
17.65
17.65
4.57
2.79
0.48
MAX
0.695
0.695
0.180
0.110
0.019
MILLIMETERS
INCHES
DIM
0.66
0.51
0.64
16.51
16.51
1.07
1.07
1.07
—
2
°
15.50
1.02
0.81
—
—
16.66
16.66
1.21
1.21
1.42
0.50
10
°
16.00
—
0.026
0.020
0.025
0.650
0.650
0.042
0.042
0.042
—
2
°
0.610
0.040
0.032
—
—
0.656
0.656
0.048
0.048
0.056
0.020
10
°
0.630
—
1.27 BSC
0.050 BSC
NOTES:
1. DUE TO SPACE LIMITATION, CASE 777-02
SHALL BE REPRESENTED BY A GENERAL
(SMALLER) CASE OUTLINE DRAWING
RATHER THAN SHOWING ALL 44 LEADS.
2. DATUMS -L-, -M-, AND -N- DETERMINED
WHERE TOP OF LEAD SHOULDER EXITS
PLASTIC BODY AT MOLD PARTING LINE.
3. DIM G1, TRUE POSITION TO BE MEASURED
AT DATUM -T-, SEATING PLANE.
4. DIM R AND U DO NOT INCLUDE MOLD FLASH.
ALLOWABLE MOLD FLASH IS 0.25 (0.010) PER
SIDE.
5. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
6. CONTROLLING DIMENSION: INCH.
7. THE PACKAGE TOP MAY BE SMALLER THAN
THE PACKAGE BOTTOM BY UP TO .012 (.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.
8. DIMENSION H DOES NOT INCLUDE DAMBAR
PROTRUSION OR INTRUSION. THE DAMBAR
PROTRUSION(S) SHALL NOT CAUSE THE H
DIMENSION TO BE GREATER THAN .037
(.940). THE DAMBAR INTRUSION(S) SHALL
NOT CAUSE THE H DIMENSION TO BE
SMALLER THAN .025 (.635).
9. 777-01 IS OBSOLETE, NEW STANDARD 777-02.
-N-
-M-
Y BRK
D
D
W
V
1
44
44
LEADS
ACTUAL
-L-
A
R
Z
C
G
G1
VIEW S
J
E
K
K1
H
F
VIEW D-D
X
G1
0.25 (0.010)
U
B
Z
VIEW S
0.10 (0.004)
SEATING
PLANE
-T-
0.25 (0.010)
T L –M
S
N
S
S
0.18 (0.007)
T L –M
S
N
S
M
0.18 (0.007)
T L –M
S
N
S
M
0.18 (0.007)
T L –M
S
N
S
M
0.18 (0.007)
T L –M
S
N
S
M
T L –M
S
N
S
S
0.18 (0.007)
T L –M
S
N
S
M
0.18 (0.007)
T L –M
S
N
S
M
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