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X28HC256DMB-15 Datasheet(PDF) 5 Page - Rochester Electronics

Part # X28HC256DMB-15
Description  LOW POWER CMOS EEPROM with hi-speed page write capability 256K EEPROM
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Manufacturer  ROCHESTER [Rochester Electronics]
Direct Link  http://www.rocelec.com/
Logo ROCHESTER - Rochester Electronics

X28HC256DMB-15 Datasheet(HTML) 5 Page - Rochester Electronics

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4
FN8108.2
May 7, 2007
Pinouts
Pin Descriptions
Addresses (A0 to A14)
The Address inputs select an 8-bit memory location during a
read or write operation.
Chip Enable (CE)
The Chip Enable input must be LOW to enable all read/write
operations. When CE is HIGH, power consumption is
reduced.
Output Enable (OE)
The Output Enable input controls the data output buffers,
and is used to initiate read operations.
Data In/Data Out (I/O0 to I/O7)
Data is written to or read from the X28HC256 through the I/O
pins.
Write Enable (WE)
The Write Enable input controls the writing of data to the
X28HC256.
X28HC256
(28 LD CERDIP, FLATPACK, PDIP, SOIC)
TOP VIEW
X28HC256
(32 LD PLCC, LCC)
TOP VIEW
X28HC256
(28 LD PGA)
BOTTOM VIEW
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
X28HC256
A6
A5
A4
A3
A2
A1
A0
NC
I/O0
A8
A9
A11
NC
OE
A10
CE
I/O7
I/O6
4 3 2 1 32 31 30
14 15 16 17 18 19 20
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
X28HC256
11
I/O0
10
A0
14
VSS
9
A1
8
A2
7
A3
6
A4
5
A5
2
A12
28
VCC
12
I/O1
13
I/O2
15
I/O3
4
A6
3
A7
1
16
I/O4
20
CE
22
OE
24
A9
17
I/O5
27
WE
19
I/O7
21
A10
23
A11
25
A8
18
I/O6
26
A13
A14
X28HC256
X28HC256


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