AT28C64B-25SI ATMEL Corporation, AT28C64B-25SI Datasheet
AT28C64B-25SI
Manufacturer Part Number
AT28C64B-25SI
Description
Manufacturer
ATMEL Corporation
Datasheets
1.AT28C64B-25SI.pdf
(13 pages)
2.AT28C64B-25SI.pdf
(13 pages)
3.AT28C64B-25SI.pdf
(18 pages)
Specifications of AT28C64B-25SI
Case
SOP
Date_code
2000
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT28C64B-25SI
Manufacturer:
ATM
Quantity:
6 250
Part Number:
AT28C64B-25SI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Features
•
•
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•
•
•
•
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•
Description
The AT28C64B is a high-performance electrically-erasable and programmable read
only memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits.
Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers
access times to 150 ns with power dissipation of just 220 mW. When the device is
deselected, the CMOS standby current is less than 100 µA.
Pin Configurations
Note:
Pin Name
A0 - A12
CE
OE
WE
I/O0 - I/O7
NC
DC
Fast Read Access Time – 150 ns
Automatic Page Write Operation
Fast Write Cycle Times
Low Power Dissipation
Hardware and Software Data Protection
DATA Polling and Toggle Bit for End of Write Detection
High Reliability CMOS Technology
Single 5V ± 10% Supply
CMOS and TTL Compatible Inputs and Outputs
JEDEC Approved Byte-wide Pinout
Commercial and Industrial Temperature Ranges
– Internal Address and Data Latches for 64 Bytes
– Page Write Cycle Time: 10 ms Maximum
– 1 to 64-byte Page Write Operation
– 40 mA Active Current
– 100 µA CMOS Standby Current
– Endurance: 100,000 Cycles
– Data Retention: 10 Years
I/O0
NC
A6
A5
A4
A3
A2
A1
A0
PLCC package pins 1 and 17 are
DON’T CONNECT.
5
6
7
8
9
10
11
12
13
Top View
PLCC
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
Don’t Connect
29
28
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
I/O7
I/O6
VCC
A11
A12
WE
OE
NC
NC
A9
A8
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
I/O0
I/O1
I/O2
A12
NC
A7
A6
A5
A4
A3
A2
A1
A0
Top View
TSOP
PDIP, SOIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Top View
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
NC
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
(continued)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
64K (8K x 8)
Parallel
EEPROM with
Page Write and
Software Data
Protection
AT28C64B
Rev. 0270H–12/99
1
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