AT28C64B-25TI Atmel, AT28C64B-25TI Datasheet - Page 7

• Manufacturer Part Number: AT28C64B-25TI
• Manufacturer: Atmel

Specifications of AT28C64B-25TI

• Density: 64Kb
• Interface Type: Parallel
• Organization: 8Kx8
• Access Time (max): 250ns
• Write Protection: Yes
• Data Retention: 10Year
• Operating Supply Voltage (typ): 5V
• Package Type: TSOP-I
• Operating Temp Range: -40C to 85C
• Supply Current: 40mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

Page Mode Characteristics
Page Mode Write Waveforms
Notes:
Chip Erase Waveforms
t
t
V
S
W
Symbol
t
t
t
t
t
t
t
t
t
H
WC
WC
AS
AH
DS
DH
WP
BLC
WPH
= t
= 10 msec (min.)
= 12.0 ± 0.5V
H
= 1 µsec (min.)
1. A6 through A12 must specify the same page address during each high to low transition of WE (or CE).
2. OE must be high only when WE and CE are both low.
Parameter
Write Cycle Time
Write Cycle Time (option available; contact Atmel sales office for
ordering part number)
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
(1)(2)
Min
100
50
50
50
0
0
0
AT28C64B
Max
150
10
2
Units
ms
ms
ns
ns
ns
ns
ns
µs
ns
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