AT28C040-20BC Atmel, AT28C040-20BC Datasheet - Page 7

• Manufacturer Part Number: AT28C040-20BC
• Description: IC EEPROM 4MBIT 200NS 32CDIP
• Manufacturer: Atmel

Specifications of AT28C040-20BC

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 4M (512K x 8)
• Speed: 200ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-CDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT28C04020BC

Page Mode Characteristics
Page Mode Write Waveforms
Notes:
Symbol
t
t
t
t
t
t
t
t
WC
AS
AH
DS
DH
WP
BLC
WPH
1.
2.
A8 through A18 must specify the page address during each high to low transition of WE (or CE).
OE must be high only when WE and CE are both low.
Parameter
Write Cycle Time
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
(1)(2)
Min
100
50
50
50
0
0
Max
150
10
Units
ms
ns
ns
ns
ns
ns
ns
s
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