AT28BV256-20SU Atmel, AT28BV256-20SU Datasheet - Page 2

• Manufacturer Part Number: AT28BV256-20SU
• Description: IC EEPROM 256KBIT 200NS 28SOIC
• Manufacturer: Atmel

Specifications of AT28BV256-20SU

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 200ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Organization: 32 K x 8
• Interface Type: Parallel
• Access Time: 200 ns
• Output Enable Access Time: 80 ns
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 15 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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 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
28
27
26
25
24
23
22
21
20
19
18
17
16
15
0273K–PEEPR–2/09
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2