X28LC512/X28LC513
512K
X28LC512/X28LC513
64K x 8 Bit
3.3 Volt, Byte Alterable E2PROM
FEATURES
• Two PLCC and LCC Pinouts
—X28LC512
—X28LC010 E PROM Pin Compatible
—X28LC513
• Low V Operation: V = 3.3V ±10%
CC
CC
2
• Access Time: 150ns
• Simple Byte and Page Write
2
—Compatible with Lower Density E PROMs
—Self-Timed
—No Erase Before Write
—No Complex Programming Algorithms
—No Overerase Problem
• Low Power CMOS:
DESCRIPTION
2
The X28LC512/513 is a low-power 64K x 8 E PROM,
fabricated with Xicor’s proprietary, high performance,
floating gate CMOS technology. The X28LC512/513
featurestheJEDECapprovedpinoutforbytewidememo-
ries, compatible with industry standard EPROMS.
—Active: 25mA
—Standby: 150µA
• Software Data Protection
—Protects Data Against System Level
Inadvertant Writes
• High Speed Page Write Capability
• Highly Reliable Direct Write™ Cell
—Endurance: 10,000 Write Cycles
—Data Retention: 100 Years
• Early End of Write Detection
—DATA Polling
The X28LC512/513 supports a 128-byte page write
operation, effectively providing a 39µs/byte write cycle
andenablingtheentirememorytobewritteninlessthan
2.5 seconds. The X28LC512/513 also features DATA
Polling and Toggle Bit Polling, system software support
schemes used to indicate the early completion of a write
cycle. In addition, the X28LC512/513 supports the Soft-
ware Data Protection option.
—Toggle Bit Polling
PLCC
PIN CONFIGURATIONS
30
4 3
2
32 31
A
A
5
29
28
27
26
25
24
23
22
A
A
A
A
A
7
6
5
4
3
2
1
0
0
14
13
8
1
PLASTIC DIP
TSOP
6
A
7
A
A
A
OE
A
1
2
3
4
5
6
7
8
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
11
9
8
A
NC
NC
1
2
3
4
5
6
7
8
9
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
8
V
9
CC
X28LC512
(TOP VIEW)
10
A
9
11
CE
I/O
WE
A
OE
10
11
12
13
A
A
13
14
7
A
NC
A
A
15
12
10
I/O
I/O
I/O
I/O
6
5
4
3
A
CE
A
NC
NC
NC
WE
A
14
I/O
I/O
7
15 16 17 18 19 20
A
A
21
A
7
6
5
4
3
2
1
0
0
1
2
13
14
A
8
A
9
NC
NC
V
9
V
10
11
12
13
14
15
16
17
18
19
20
CC
NC
A
X28LC512
3005 ILL F03
SS
A
A
NC
NC
NC
NC
NC
I/O
11
PLCC
X28LC512
A
OE
2
1
0
A
10
11
12
13
14
15
16
A
10
A
A
I/O
I/O
15
12
30
A
CE
4 3
2
32 31
A
A
A
A
A
A
A
5
29
28
27
26
25
24
23
22
A
A
A
A
A
A
A
A
A
1
A
6
5
4
3
2
1
0
8
7
6
5
4
0
A
1
I/O
7
I/O
6
I/O
5
I/0
4
6
9
7
I/O
I/O
I/O
V
11
2
NC
OE
A
8
A
3
X28LC513
9
(TOP VIEW)
10
11
12
13
10
3005 ILL F22.2
CE
I/O
3
SS
NC
I/O
I/O
7
I/O
0
6
15 16 17 18 19 20
21
14
3005 ILL F02.1
3005 ILL F04.1
© Xicor, Inc. 1991, 1995, 1996 Patents Pending
3005-3.2 8/5/97 T2/C0/D0 EW
Characteristics subject to change without notice
1