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X28LC512 Datasheet, PDF (1/19 Pages) Xicor Inc. – 3.3 Volt, Byte Alterable E2PROM
X28LC512/X28LC513
512K
X28LC512/X28LC513
3.3 Volt, Byte Alterable E2PROM
64K x 8 Bit
FEATURES
• Low VCC Operation: VCC = 3.3V ±10%
• Access Time: 150ns
• Simple Byte and Page Write
—Self-Timed
—No Erase Before Write
—No Complex Programming Algorithms
—No Overerase Problem
• Low Power CMOS:
—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
—Toggle Bit Polling
PIN CONFIGURATIONS
• Two PLCC and LCC Pinouts
—X28LC512
—X28LC010 E2PROM Pin Compatible
—X28LC513
—Compatible with Lower Density E2PROMs
DESCRIPTION
The X28LC512/513 is a low-power 64K x 8 E2PROM,
fabricated with Xicor’s proprietary, high performance,
floating gate CMOS technology. The X28LC512/513
features the JEDEC approved pinout for bytewide memo-
ries, compatible with industry standard EPROMS.
The X28LC512/513 supports a 128-byte page write
operation, effectively providing a 39µs/byte write cycle
and enabling the entire memory to be written in less than
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.
PLCC
NC
NC
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
PLASTIC DIP
1
32
2
31
3
30
4
29
5
28
6
27
7
26
8
25
X28LC512
9
24
10
23
11
22
12
21
13
20
14
19
15
18
16
17
VCC
WE
NC
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/04
I/O3
3005 ILL F02.1
A11
1
A9
2
A8
3
A13
4
A14
5
NC
6
NC
7
NC
8
WE
9
VCC
10
NC
11
NC
12
NC
13
NC
14
A15
15
A12
16
A7
17
A6
18
A5
19
A4
20
© Xicor, Inc. 1991, 1995, 1996 Patents Pending
3005-3.2 8/5/97 T2/C0/D0 EW
TSOP
X28LC512
1
40
OE
39
A10
38
CE
37
I/O7
36
I/O6
35
I/O5
34
I/O4
33
I/O3
32
NC
31
NC
30
VSS
29
NC
28
NC
27
I/O2
26
I/O1
25
I/O0
24
A0
23
A1
22
A2
21
A3
3005 ILL F22.2
30
A7
A6
5 4 3 2 32 31 29
6
1
28
A14
A13
A5 7
27 A8
A4
A3
8
26
9
X28LC512
(TOP VIEW)
25
A9
A11
A2 10
24 OE
A1 11
23 A10
A0 12
22 CE
I/O0
13
14
15 16 17 18 19 20 21
I/O7
3005 ILL F03
PLCC
30
A6
A5
5 4 3 2 32 31 29
6
1
28
A8
A9
A4 7
27 A11
A3
A2
8
26 NC
9
X28LC513
(TOP VIEW)
25
OE
A1 10
24 A10
A0 11
23 CE
NC 12
22 I/O7
I/O0
13
14
15 16 17 18 19 20 21
I/O6
3005 ILL F04.1
Characteristics subject to change without notice
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