AT28C256-15SU Atmel, AT28C256-15SU Datasheet - Page 5
AT28C256-15SU
Manufacturer Part Number
AT28C256-15SU
Description
IC EEPROM 256KBIT 150NS 28SOIC
Manufacturer
Atmel
Datasheets
1.AT28C256-15PU.pdf
(25 pages)
2.AT28C256-15SU.pdf
(8 pages)
3.AT28C256-15SU.pdf
(27 pages)
Specifications of AT28C256-15SU
Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
150ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Organization
32 K x 8
Interface Type
SPI
Access Time
150 ns
Output Enable Access Time
70 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Current
50 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
5 V
Capacitance, Input
4 pF
Capacitance, Output
8 pF
Current, Input, Leakage
10 μA
Current, Operating
50 mA
Current, Output, Leakage
10
Data Retention
10 yrs.
Density
256K
Package Type
SOIC
Power Dissipation
440 mW
Temperature, Operating
-40 to +85 °C
Time, Access
150 ns
Time, Address Hold
50
Voltage, Input, High
2 V
Voltage, Input, Low
0.8 V
Voltage, Output, High
2.4 V
Voltage, Output, Low
0.45 V
Voltage, Supply
5 V
Access Time (max)
150ns
Write Protection
Yes
Operating Supply Voltage (typ)
5V
Operating Temp Range
-40C to 85C
Supply Current
50mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
28
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT28C256-15SU
Manufacturer:
ATMEL
Quantity:
20
Part Number:
AT28C256-15SU
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
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
Units
ns
ns
ns
ns
ns
ns
ns