AT28C256E-25FM/883 Atmel, AT28C256E-25FM/883 Datasheet - Page 8
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AT28C256E-25FM/883
Manufacturer Part Number
AT28C256E-25FM/883
Description
IC EEPROM 256KBIT 250NS 28FPACK
Manufacturer
Atmel
Datasheet
1.AT28C256-15PU.pdf
(25 pages)
Specifications of AT28C256E-25FM/883
Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
250ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Package / Case
28-Flatpack
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT28C256E-25FM883
14. AC Write Characteristics
Note:
15. AC Write Waveforms
15.1
15.2
8
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
DV
, t
, t
OES
OEH
1. NR = No Restriction
WE Controlled
CE Controlled
AT28C256
Parameter
Address, OE Setup Time
Address Hold Time
Chip Select Setup Time
Chip Select Hold Time
Write Pulse Width (WE or CE)
Data Setup Time
Data, OE Hold Time
Time to Data Valid
NR
Min
100
50
50
0
0
0
0
(1)
Max
0006M–PEEPR–12/09
Units
ns
ns
ns
ns
ns
ns
ns