X28HC64J-12 Intersil, X28HC64J-12 Datasheet - Page 7
![IC EEPROM 64KBIT 120NS 32PLCC](/photos/18/29/182917/x28hc64j-12_sml.jpg)
X28HC64J-12
Manufacturer Part Number
X28HC64J-12
Description
IC EEPROM 64KBIT 120NS 32PLCC
Manufacturer
Intersil
Datasheet
1.X28HC64D-12.pdf
(17 pages)
Specifications of X28HC64J-12
Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
64K (8K x 8)
Speed
120ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
32-LCC (J-Lead)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
X28HC64J-12
Manufacturer:
XICOR
Quantity:
3 198
Company:
Part Number:
X28HC64J-12
Manufacturer:
XICOR
Quantity:
5 510
Part Number:
X28HC64J-12
Manufacturer:
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Quantity:
20 000
Company:
Part Number:
X28HC64J-12T1
Manufacturer:
INTERSIL
Quantity:
4 219
Part Number:
X28HC64J-12TZ
Manufacturer:
INTERSIL
Quantity:
20 000
Resetting Software Data Protection
FIGURE 9. SOFTWARE SEQUENCE TO DEACTIVATE
V
WE
CE
CC
SOFTWARE
ADDR
DATA
WRITE DATA AA
WRITE DATA AA
WRITE DATA 20
WRITE DATA 55
WRITE DATA 80
WRITE DATA 55
TO ADDRESS
TO ADDRESS
TO ADDRESS
TO ADDRESS
TO ADDRESS
1555
AAA
ADDRESS
0AAA
0AAA
1555
1555
1555
1555
7
FIGURE 8. RESET SOFTWARE DATA PROTECTION TIMING SEQUENCE
0AAA
55
1555
80
X28HC64
1555
AA
In the event the user wants to deactivate the software data
protection feature for testing or reprogramming in an
EEPROM programmer, the following six step algorithm will
reset the internal protection circuit. After t
will be in standard operating mode.
Note: Once initiated, the sequence of write operations
should not be interrupted.
0AAA
55
1555
20
≥t
WC
STANDARD
OPERATING
MODE
WC
, the X28HC64
August 28, 2009
FN8109.2