AT28HC256-90SU Atmel, AT28HC256-90SU Datasheet - Page 8
![IC EEPROM 256KBIT 90NS 28SOIC](/photos/6/82/68295/453-28-soic_sml.jpg)
AT28HC256-90SU
Manufacturer Part Number
AT28HC256-90SU
Description
IC EEPROM 256KBIT 90NS 28SOIC
Manufacturer
Atmel
Datasheet
1.AT28HC256-12JU.pdf
(24 pages)
Specifications of AT28HC256-90SU
Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
90ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT28HC256-90SU
Manufacturer:
ATMEL
Quantity:
1
Part Number:
AT28HC256-90SU
Manufacturer:
ATMEL
Quantity:
20 000
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
AT28HC256
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
0007N–PEEPR–9/09
Units
ns
ns
ns
ns
ns
ns
ns