AT29C257-15 ATMEL [ATMEL Corporation], AT29C257-15 Datasheet - Page 9
![no-image](/images/no-image-200.jpg)
AT29C257-15
Manufacturer Part Number
AT29C257-15
Description
256K 32K x 8 5-volt Only CMOS Flash Memory
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT29C257-15.pdf
(12 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT29C257-15JC
Manufacturer:
ATM
Quantity:
2 080
Company:
Part Number:
AT29C257-15JC
Manufacturer:
ATM
Quantity:
2 080
Company:
Part Number:
AT29C257-15JC
Manufacturer:
ATMEL
Quantity:
16 988
Part Number:
AT29C257-15JC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT29C257-15JI
Manufacturer:
ATM
Quantity:
1 980
Company:
Part Number:
AT29C257-15JI
Manufacturer:
ATM
Quantity:
1 980
Notes: 1. Toggling either OE or CE or both OE and CE will
Data Polling Characteristics
Notes: 1. These parameters are characterized and not 100% tested.
Data Polling Waveforms
Toggle Bit Characteristics
Notes: 1. These parameters are characterized and not 100% tested.
Toggle Bit Waveforms
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
2. Beginning and ending state of I/O6 will vary.
2. See t
2. See t
operate toggle bit.
OE
OE
spec in AC Read Characteristics.
spec in AC Read Characteristics.
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
(1, 2, 3)
(2)
(2)
(1)
(1)
Min
150
10
0
0
Min
10
0
0
3. Any address location may be used but the address
should not vary.
Typ
Typ
AT29C257
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
4-113