
PRODUCT SPECIFICATION
R296XX/R297XX
21
Mechanical Dimensions
(continued)
24 Lead Leaded Chip Carrier
Notes:
1. Index area: a notch or a pin one identification mark shall be located adjacent to pin one.
The manufacturer's identification mark shall not be used as a pin one identification mark.
Alternatively, a tab (dim. K) may be used to identify pin one.
2. This dimension allows for off-center lid, meniscus and glass overrun.
3. The basic pin spacing is .050 (1.27mm) between centerlines. Each pin centerline shall
be located within
±
.005 (.13mm) of its exact longitudinal position relative to pins 1 and 24.
4. All leads - Increase maximum limit by .003 (0.08mm) measured at the center of the flat,
when finish "A" is applied.
5. Twenty-two spaces.
6. Applies to all four corners (leads number 1, 12, 13, and 24).
D
b1
e
S1
E
E1
L
2 PL
E3
2 PL
c1
E2
Q
A
E
K
Note 1
A
b1
c1
D
.045
.015
.004
—
.115
.019
.006
.640
1.14
.38
.10
—
2.92
.48
.15
16.26
Symbol
Inches
Min.
Max.
Min.
Max.
Millimeters
Notes
E
E1
E2
E3
.350
—
.180
.030
.420
.450
—
—
8.89
—
4.57
.76
10.67
11.43
—
—
e
L
Q
s1
.050 BSC
.250
.026
.000
1.27 BSC
6.35
.66
.00
.370
.045
—
9.40
1.14
—
6
4
2
4
2
3, 5