AT28HC256-90PC Atmel, AT28HC256-90PC Datasheet - Page 8
![IC EEPROM 256KBIT 90NS 28DIP](/photos/7/21/72189/453-28-dip_sml.jpg)
AT28HC256-90PC
Manufacturer Part Number
AT28HC256-90PC
Description
IC EEPROM 256KBIT 90NS 28DIP
Manufacturer
Atmel
Datasheet
1.AT28HC256F-12JC.pdf
(24 pages)
Specifications of AT28HC256-90PC
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
0°C ~ 70°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT28HC256-90PC
Manufacturer:
ATMEL/爱特梅尔
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
0007M–PEEPR–2/09
Units
ns
ns
ns
ns
ns
ns
ns