AT29C256-90TC Atmel, AT29C256-90TC Datasheet - Page 2

• Manufacturer Part Number: AT29C256-90TC
• Manufacturer: Atmel

Specifications of AT29C256-90TC

• Density: 256Kb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 15b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP-I
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• 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

2. Pin Configurations
2.1
2.2
2
PLCC and LCC Top View
TSOP Top View Type 1
AT29C256
Note:
Pin Name
A0 - A14
CE
OE
WE
I/O0 - I/O7
NC
DC
1. PLCC package pins 1 and 17 are DON’T CONNECT.
VCC
A11
A13
A14
A12
WE
OE
A9
A8
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
I/O0
NC
A6
A5
A4
A3
A2
A1
A0
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
Don’t Connect
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
I/O7
I/O6
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
0046S–FLASH–2/07