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X28HC64TM-90 Datasheet

  • X28HC64TM-90

  • 5 Volt, Byte Alterable EEPROM

  • 16頁

  • INTERSIL   INTERSIL

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X28HC64
64K, 8K x 8 Bit
Data Sheet
June 1, 2005
FN8109.0
5 Volt, Byte Alterable EEPROM
FEATURES
鈥?70ns access time
鈥?Simple byte and page write
鈥擲ingle 5V supply
鈥擭o external high voltages or V
PP
control circuits
鈥擲elf-timed
鈥擭o erase before write
鈥擭o complex programming algorithms
鈥擭o overerase problem
鈥?Low power CMOS
鈥?0mA active current max.
鈥?00碌A(chǔ) standby current max.
鈥?Fast write cycle times
鈥?4-byte page write operation
鈥擝yte or page write cycle: 2ms typical
鈥擟omplete memory rewrite: 0.25 sec. typical
鈥擡ffective byte write cycle time: 32碌s typical
鈥?Software data protection
鈥?End of write detection
鈥擠ATA polling
鈥擳oggle bit
鈥?High reliability
鈥擡ndurance: 1 million cycles
鈥擠ata retention: 100 years
鈥?JEDEC approved byte-wide pin out
DESCRIPTION
The X28HC64 is an 8K x 8 EEPROM, fabricated with
Intersil鈥檚 proprietary, high performance, floating gate
CMOS technology. Like all Intersil programmable non-
volatile memories, the X28HC64 is a 5V only device. It
features the JEDEC approved pinto for byte-wide mem-
ories, compatible with industry standard RAMs.
The X28HC64 supports a 64-byte page write operation,
effectively providing a 32碌s/byte write cycle, and
enabling the entire memory to be typically written in 0.25
seconds. The X28HC64 also features DATA Polling and
Toggle Bit Polling, two methods providing early end of
write detection. In addition, the X28HC64 includes a
user-optional software data protection mode that further
enhances Intersil鈥檚 hardware write protect capability.
Intersil EEPROMs are designed and tested for appli-
cations requiring extended endurance. Inherent data
retention is greater than 100 years.
PIN CONFIGURATIONS
Plastic DIP
Flat Pack
CERDIP
1
2
3
4
5
6
8
9
10
11
12
13
14
28
27
26
25
24
23
21
20
19
18
17
16
15
V
CC
WE
NC
A
8
A
9
A
11
OE
A
10
CE
I/O
7
I/O
6
I/O
5
I/O
4
I/O
3
A
6
A
5
A
4
A
3
A
2
A
1
A
0
NC
I/O
0
5
6
7
8
9
10
11
12
29
28
27
26
A
8
A
9
A
11
NC
OE
A
10
CE
I/O
7
I/O
6
I/O
1
12
I/O
0
11
A
1
9
A
3
7
A
5
I/O
2
13
A
0
10
A
2
8
LCC
PLCC
V
CC
WE
A
12
NC
NC
NC
A
7
TSOP
A2
A1
A0
I/O 0
I/O 1
I/O 2
NC
VSS
NC
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
CE
A10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A3
A4
A5
A6
A7
A 12
NC
NC
VCC
NC
WE
NC
A8
A9
A 11
OE
SOIC
NC
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
I/O
0
I/O
1
I/O
2
V
SS
4
3
2
1 32 31 30
X28HC64
7 X28HC64 22
X28HC64
(Top View)
25
24
23
22
13
21
14 15 16 17 18 19 20
I/O
1
I/O
2
I/O
3
I/O
4
V
SS
I/O
5
NC
PGA
I/O
3
15
V
SS
14
I/O
5
17
I/O
4
16
CE
20
I/O
6
18
I/O
7
19
A
10
21
A
11
23
A
8
25
NC
26
X28HC64
A
4
OE
6 (BOTTOM 22
VIEW)
A
12
2
A
7
3
V
CC
28
NC
1
A
9
24
WE
27
5
A
6
4
Bottom View
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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