at28bv256 ATMEL Corporation, at28bv256 Datasheet - Page 2

• Manufacturer Part Number: at28bv256
• Description: 256k 32k X 8 Battery-voltage Parallel Eeproms
• Manufacturer: ATMEL Corporation

2. Pin Configurations
2.1
Note:
2
Pin Name
A0 - A14
CE
OE
WE
I/O0 - I/O7
NC
DC
32-lead PLCC – Top View
1. PLCC package pins 1 and 17 are Don’t Connect.
AT28BV256
I/O0
NC
A6
A5
A4
A3
A2
A1
A0
5
6
7
8
9
10
11
12
13
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
Don’t Connect
29
28
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
I/O7
I/O6
2.2
2.3
VCC
A11
A13
A14
A12
WE
OE
28-lead PDIP, SOIC – Top View
28-lead TSOP – Top View
A9
A8
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
I/O0
I/O1
I/O2
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
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
0273J–PEEPR–10/06
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2