256Kb EEPROM
MYX28C32K8
Features
32K x 8 EEPROM - 5 Volt, Byte Alterable
•
•
Access Time (ns): 70, 90, 120, 150
Simple Byte and Page Write
.Single 5V Supply
Description
No External High Voltages or VPP
2
Control Circuits
The MYX28C32K8 is a high performance CMOS 32K x 8 E PROM. It is
.Self-Timed
fabricated with a textured poly floating gate technology, providing a highly
reliable 5 Volt only nonvolatile memory.
No Erase Before Write
No Complex Programming
Algorithms
The MYX28C32K8 supports a 128-byte page write operation, effectively
providing a 24ms/byte write cycle and enabling the entire memory to be
typically rewritten in less than 0.8 seconds.The MYX28C32K8 also features
DATA Polling and Toggle Bit Polling, two methods of providing early end
of write detection. The MYX28C32K8 also supports the JEDEC standard
Software Data Protection feature for protecting against inadvertent writes
during power-up and power-down.
No Overerase Problem
Low Power CMOS:
•
•
.Active: 60mA
.Standby: 500mA
Software Data Protection
.Protects Data Against System Level
Inadvertent Writes
•
•
High Speed Page Write Capability
Highly Reliable Direct Write™ Cell
.Endurance: 100,000 Write Cycles
.Data Retention: 100 Years
Early End of Write Detection
.DATA Polling
Endurance for the MYX28C32K8 is specified as a minimum 100,000 write
cycles per byte and an inherent data retention of 100 years.
•
CerDIP or
Flat Pack
.Toggle Bit Polling
CerLCC
I/O1
12
I/O2
13
I/O3
15
I/O5
17
I/O6
18
Options
Markings
A14
1
28
V
CC
A
2
27
26
25
24
23
22
21
20
19
18
17
16
15
WE#
12
4
3
2
1
32 31 30
29
70 ns access
90 ns access
120 ns access
150 ns access
-7
-9
Timing
I/O0
A0
VSS
14
I/O4
I/O7
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
3
A
13
11
10
16
19
A
A
A
A
A
A
A
5
6
7
8
9
A
A
A
6
5
4
3
2
1
0
8
4
A
8
A
9
28
27
26
25
24
23
22
21
9
5
-12
-15
A1
9
A2
8
CE
20
A10
21
11
6
A
11
NC
7
OE#
MYX28C32K8
OE#
8
A
A3
7
A4
6
OE
22
A11
23
10
10
11
12
13
A
Ceramic flat pack
CerDIP, 600 mil
CerLCC
F
CW
ECA
P
Packages
10
9
CE#
CE#
10
11
12
13
14
I/O
7
I/O
6
I/O
5
I/0
4
NC
I/O
I/O
7
I/O
6
A5
A12
VCC
A9
A8
I/O
0
I/O
1
I/O
2
5
2
28
24
25
0
14 15 16 17 18 19 20
CerPGA
A6
4
A7
3
A14
1
WE
27
A13
26
V
I/O
3
SS
Military (-55°C to +125°C)
Industrial (-40°C to +85°C)
XT
IT
Operating
Temp.
Figure 1 - Pin Configuration
MYX28C32K8
Revision 1.3 - 11/12
1