IDT79R3051/79R3052 INTEGRATED RISControllers
COMMERCIAL TEMPERATURE RANGE
84 LEAD PLCC/MQUAD(7) (SQUARE)
A
D
D1
A1
PIN 1
C
45° x .045
D3/E3
E1
E
D2/E2
b1
B
e
C1
SEATING PLANE
2874 drw 27
NOTES:
1. All dimensions are in inches, unless otherwise noted.
2. BSC—Basic lead Spacing between Centers.
3. D & E do not include mold flash or protutions.
4. Formed leads shall be planar with respect to one another and within .004” at the seating plane.
5. ND & NE represent the number of leads in the D & E directions respectively.
6. D1 & E1 should be measured from the bottom of the package.
7. MQUAD is pin & form compatible with PLCC.
DWG #
J84-1
84
MJ84-1
84
# of Leads
Symbol
Min.
165
Max.
.180
Min.
165
Max.
A
A1
.180
.114
.095
.026
.013
.020
.008
1.185
1.150
1.090
.115
.094
.026
.013
.020
.008
1.185
1.140
1.090
B
.032
.032
b1
.021
.021
C
.040
.040
C1
.012
.012
D
1.195
1.156
1.130
1.195
1.150
1.130
D1
D2/E2
D3/E3
E
1.000 REF
1.000 REF
1.185
1.150
1.195
1.156
1.185
1.140
1.195
1.150
E1
e
.050 BSC
21
.050 BSC
21
ND/NE
5.3
22