X28C256 Datasheet, PDF (21/24 Pages) Xicor Inc. – 5 Volt, Byte Alterable E2PROM

X28C256
PACKAGING INFORMATION
28-LEAD CERAMIC PIN GRID ARRAY PACKAGE TYPE K
12
13
15
17
18
11
10
14
16
19
9
8
20
21
7
6
22
23
5
2
28
24
25
4
3
1
27
26
TYP. 0.100 (2.54)
ALL LEADS
0.080 (2.03)
0.070 (1.78)
PIN 1 INDEX
A
0.008 (0.20)
0.050 (1.27)
A
NOTE: LEADS 4,12,18 & 26
0.080 (2.03) 4 CORNERS
0.070 (1.78)
0.110 (2.79)
0.090 (2.29)
0.072 (1.83)
0.062 (1.57)
0.020 (0.51)
0.016 (0.41)
0.660 (16.76)
0.640 (16.26)
0.561 (14.25)
0.541 (13.75)
A
A
0.185 (4.70)
0.175 (4.44)
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
3926 FHD F15
21