AT28C256-25SI Atmel, AT28C256-25SI Datasheet - Page 11
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AT28C256-25SI
Manufacturer Part Number
AT28C256-25SI
Description
EEPROM 256K 11MIL GRIND - 250NS IND TEMP
Manufacturer
Atmel
Datasheet
1.AT28C256-25SI.pdf
(25 pages)
Specifications of AT28C256-25SI
Product Category
EEPROM
Memory Size
256 Kbit
Organization
32 K x 8
Data Retention
10 yr
Maximum Operating Current
50 mA
Operating Supply Voltage
5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOIC
Access Time
250 ns
Interface Type
Parallel
Minimum Operating Temperature
- 40 C
Output Enable Access Time
100 ns
Factory Pack Quantity
27
Supply Voltage - Max
5.5 V
Supply Voltage - Min
4.5 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT28C256-25SI
Manufacturer:
ATM
Quantity:
6 250
22. Data Polling Characteristics
Notes:
23. Data Polling Waveforms
24. Toggle Bit Characteristics
Notes:
25. Toggle Bit Waveforms
Notes:
0006M–PEEPR–12/09
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
1. These parameters are characterized and not 100% tested.
2.
1. These parameters are characterized and not 100% tested.
2. See
1. Toggling either OE or CE or both OE and CE will operate toggle bit.
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
See“AC Read Characteristics” on page
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
Write Recovery Time
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
OE High Pulse
Write Recovery Time
“AC Read Characteristics” on page
(2)
(2)
(1)(2)(3)
(1)
6.
6.
(1)
Min
Min
150
10
10
0
0
0
0
Typ
Typ
Max
AT28C256
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
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