AT28HC256-12TU Atmel, AT28HC256-12TU Datasheet - Page 11
![IC EEPROM 256KBIT 120NS 28TSOP](/photos/7/21/72191/313-28-tsop_sml.jpg)
AT28HC256-12TU
Manufacturer Part Number
AT28HC256-12TU
Description
IC EEPROM 256KBIT 120NS 28TSOP
Manufacturer
Atmel
Datasheet
1.AT28HC256-12JU.pdf
(24 pages)
Specifications of AT28HC256-12TU
Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
120ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-TSOP
Density
256Kb
Interface Type
Parallel
Organization
32Kx8
Access Time (max)
120ns
Write Protection
Yes
Data Retention
10Year
Operating Supply Voltage (typ)
5V
Package Type
TSOP-I
Operating Temp Range
-40C to 85C
Supply Current
80mA
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:
AT28HC256-12TU
Manufacturer:
ATMEL
Quantity:
8
22. Data Polling Characteristics
Notes:
23. Data Polling Waveforms
24. Toggle Bit Characteristics
Notes:
25. Toggle Bit Waveforms
Notes:
0007N–PEEPR–9/09
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
1. These parameters are characterized and not 100% tested.
2. See
1. These parameters are characterized and not 100% tested.
2. See
1. Toggling either OE or CE or both OE and CE will operate toggle bit.
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
Write Recovery Time
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
OE High Pulse
Write Recovery Time
“AC Read Characteristics” on page
“AC Read Characteristics” on page
(2)
(2)
(1)
(1)
6.
6.
Min
Min
150
10
10
0
0
0
0
Typ
Typ
AT28HC256
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
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