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參數(shù)資料
| 型號(hào)： | MCM67H618BFN12 |
| 廠商： | MOTOROLA INC |
| 元件分類： | DRAM |
| 英文描述： | 64K x 18 Bit BurstRAM Synchronous Fast Static RAM |
| 中文描述： | 64K X 18 CACHE SRAM, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 167K |
| 代理商： | MCM67H618BFN12 |
MCM67H618B
11
MOTOROLA FAST SRAM
PACKAGE DIMENSIONS
FN PACKAGE
52–LEAD PLCC
CASE 778–02
–L–
Y
BRK
W
D
D
V
52
1
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).
B
U
Z
G1
X
VIEW D–D
H
K1
K
F
VIEW S
M
0.007 (0.18)
L–M
S
T
S
N
M
0.007 (0.18)
L–M
S
T
S
N
0.004 (0.100)
–T–
SEATING
PLANE
M
0.007 (0.18)
L–M
S
T
S
N
M
0.007 (0.18)
L–M
S
T
S
N
A
R
G
G1
C
Z
J
E
VIEW S
–M–
–N–
DIM
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
G1
K1
MIN
0.785
0.785
0.165
0.090
0.013
0.050 BSC
0.026
0.020
0.025
0.750
0.750
0.042
0.042
0.042
–––
2
0.710
0.040
MAX
0.795
0.795
0.180
0.110
0.019
MIN
19.94
19.94
4.20
2.29
0.33
MAX
20.19
20.19
4.57
2.79
0.48
MILLIMETERS
INCHES
1.27 BSC
0.66
0.51
0.64
19.05
19.05
1.07
1.07
1.07
–––
2
18.04
1.02
0.032
–––
–––
0.756
0.756
0.048
0.048
0.056
0.020
10
0.730
–––
0.81
–––
–––
19.20
19.20
1.21
1.21
1.42
0.50
10
18.54
–––
M
0.007 (0.18)
L–M
S
T
S
N
M
0.007 (0.18)
L–M
S
T
S
N
S
0.010 (0.25)
L–M
S
T
S
N
S
0.010 (0.25)
L–M
S
T
S
N
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