AT29C256-12TI Atmel, AT29C256-12TI Datasheet - Page 11
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AT29C256-12TI
Manufacturer Part Number
AT29C256-12TI
Description
Manufacturer
Atmel
Datasheet
1.AT29C256-12TI.pdf
(18 pages)
Specifications of AT29C256-12TI
Density
256Kb
Access Time (max)
120ns
Interface Type
Parallel
Boot Type
Not Required
Address Bus
15b
Operating Supply Voltage (typ)
5V
Operating Temp Range
-40C to 85C
Package Type
TSOP-I
Program/erase Volt (typ)
4.5 to 5.5V
Sync/async
Asynchronous
Operating Temperature Classification
Industrial
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Word Size
8b
Number Of Words
32K
Supply Current
50mA
Mounting
Surface Mount
Pin Count
28
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT29C256-12TI
Manufacturer:
ATMEL
Quantity:
15
18. Software Data Protection
Notes:
20. Software Protected Program Cycle Waveform
Notes:
0046S–FLASH–2/07
Enable Algorithm
1. Data Format: I/O7 - I/O0 (Hex);
2. Data Protect state will be re-activated at end of pro-
3. Data Protect state will be deactivated at end of pro-
4. 64 bytes of data MUST BE loaded.
1. A6 through A14 must specify the page address during each high-to-low transition of WE (or CE) after the software code has
2. OE must be high when WE and CE are both low.
3. All bytes that are not loaded within the page being programmed will be indeterminate.
Address Format: A14 - A0 (Hex).
gram cycle.
gram period.
been entered.
PAGE (64 BYTES)
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA 55
LOAD DATA A0
LOAD DATA
TO
TO
TO
TO
(4)
(1)
WRITES ENABLED
ENTER DATA
PROTECT STATE
(2)
19. Software Data Protection
Disable Algorithm
(1)(2)(3)
PAGE (64 BYTES)
ADDRESS 2AAA
ADDRESS 2AAA
ADDRESS 5555
ADDRESS 5555
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
LOAD DATA AA
LOAD DATA 55
LOAD DATA 80
LOAD DATA 55
LOAD DATA 20
LOAD DATA
TO
TO
TO
TO
TO
TO
TO
(4)
EXIT DATA
PROTECT STATE
(1)
AT29C256
(3)
11