AT29C257-70JC Atmel, AT29C257-70JC Datasheet - Page 5
![IC FLASH 256KBIT 70NS 32PLCC](/photos/7/21/72190/453-32-plcc_sml.jpg)
AT29C257-70JC
Manufacturer Part Number
AT29C257-70JC
Description
IC FLASH 256KBIT 70NS 32PLCC
Manufacturer
Atmel
Datasheet
1.AT29C257-12JI.pdf
(12 pages)
Specifications of AT29C257-70JC
Format - Memory
FLASH
Memory Type
FLASH
Memory Size
256K (32K x 8)
Speed
70ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
32-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT29C25770JC
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT29C257-70JC
Manufacturer:
ATM
Quantity:
1 980
Company:
Part Number:
AT29C257-70JC
Manufacturer:
ATM
Quantity:
1 980
Company:
Part Number:
AT29C257-70JC
Manufacturer:
ATMEL
Quantity:
16 988
Notes: 1. CE may be delayed up to t
AC Read Characteristics
AC Read Waveforms
Input Test Waveforms and Measurement Level
t
Pin Capacitance
Note:
R
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
, t
C
C
F
(3, 4)
(1)
(2)
IN
OUT
< 5 ns
2. OE may be delayed up to t
1. This parameter is characterized and is not 100% tested.
transition without impact on t
edge of CE without impact on t
after an address change without impact on t
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE
or Address, whichever
occurred first
(f = 1 MHz, T = 25°C)
(1, 2, 3, 4)
ACC
CE
ACC
- t
CE
- t
OE
.
CE
or by t
Typ
after the falling
4
8
after the address
AT29C257-70
Min
0
0
0
ACC
ACC
- t
Max
OE
70
70
40
25
.
(1)
AT29C257-90
Min
0
0
0
Max
3. t
4. This parameter is characterized and is not 100% tested.
12
6
(C
DF
L
Max
is specified from OE or CE whichever occurs first
= 5 pF).
90
90
40
25
AT29C257-12
Min
0
0
0
Output Test Load
Units
Max
120
120
pF
pF
50
30
AT29C257
AT29C257-15
Min
0
0
0
Conditions
V
V
IN
OUT
Max
150
150
70
40
= 0V
= 0V
Units
ns
ns
ns
ns
ns
4-109