AT28C040-25BI Atmel, AT28C040-25BI Datasheet - Page 5

• Manufacturer Part Number: AT28C040-25BI
• Description: IC EEPROM 4MBIT 250NS 32CDIP
• Manufacturer: Atmel

Specifications of AT28C040-25BI

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 4M (512K x 8)
• Speed: 250ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-CDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT28C04025BI

AC Read Characteristics
AC Read Waveforms
Note:
Input Test Waveforms and
Measurement Level
t
Pin Capacitance
f = 1 MHz, T = 25°C
Note:
R
Symbol
t
t
t
t
t
Symbol
C
C
, t
ACC
CE
OE
DF
OH
IN
OUT
F
(1)
(3)(4)
(2)
< 5 ns
1.
2.
3.
4.
1. This parameter is characterized and is not 100% tested.
CE May be delayed up to t
OE may be delayed up to t
without impact on t
t
This parameter is characterized and is not 100% tested.
DF
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or Address, whichever occurred first
is specified from OE or CE, whichever occurs first (C
(1)
Typ
4
8
ACC
(1)(2)(3)(4)
.
CE
ACC
- t
- t
OE
CE
after the falling edge of CE without impact on t
after the address transition wihtout impact on t
Max
10
12
L
Output Test Load
= 5 pF).
Min
AT28C040-20
0
0
0
Units
pF
pF
CE
ACC
Max
200
200
or by t
55
55
.
ACC
- t
Min
AT28C040-25
0
0
0
OE
after an address change
Conditions
V
V
OUT
Max
250
250
IN
55
55
= 0V
= 0V
Units
ns
ns
ns
ns
ns
5