AT28C256-25JC Atmel, AT28C256-25JC Datasheet - Page 6

• Manufacturer Part Number: AT28C256-25JC
• Description: IC EEPROM 256KBIT 250NS 32PLCC
• Manufacturer: Atmel

Specifications of AT28C256-25JC

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 250ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT28C25625JC

9. AC Read Characteristics
10. AC Read Waveforms
Notes:
6
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
(1)
(3)(4)
(2)
1. CE may be delayed up to t
2. OE may be delayed up to t
3. t
4. This parameter is characterized and is not 100% tested.
AT28C256
without impact on t
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
ACC
.
ACC
CE
(1)(2)(3)(4)
- t
- t
OE
CE
after the falling edge of CE without impact on t
after the address transition without impact on t
AT28C256-15
Min
0
0
0
Max
150
150
70
50
L
= 5 pF).
AT28C256-20
Min
0
0
0
Max
200
200
80
55
AT28C256-25
Min
0
0
0
CE
ACC
or by t
.
Max
250
250
100
60
ACC
- t
OE
AT28C256-35
Min
0
0
0
after an address change
Max
0006M–PEEPR–12/09
350
350
100
70
Units
ns
ns
ns
ns
ns