AT27C2048-55JI Atmel, AT27C2048-55JI Datasheet - Page 5

• Manufacturer Part Number: AT27C2048-55JI
• Manufacturer: Atmel

Specifications of AT27C2048-55JI

• Density: 2Mb
• Organization: 128Kx16
• Interface Type: Parallel
• Bus Type: Parallel
• In System Programmable: External
• Access Time (max): 55ns
• Package Type: PLCC
• Reprogramming Technique: OTP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 35mA
• Pin Count: 44
• Mounting: Surface Mount
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Not Compliant

9. AC Characteristics for Read Operation
Note:
10. AC Waveforms for Read Operation
Notes:
0632F–EPROM–12/07
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
(2)
(4)(5)
(2)(3)
(4)
(3)
2, 3, 4, 5. See the AC Waveforms for Read Operation diagram.
1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to t
3. OE may be delayed up to t
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
OE or CE High to Output Float, Whichever Occurred First
Output Hold from Address, CE or OE, Whichever
Occurred First
CE
ACC
- t
- t
OE
OE
after the falling edge of CE without impact on t
after the address is valid without impact on t
Condition
CE = OE
OE = V
CE = V
= V
(1)
IL
IL
IL
Min
7
-55
ACC
CE
Max
55
55
20
20
.
.
AT27C2048
Min
0
-90
AT27C2048
Max
90
90
35
20
Units
ns
ns
ns
ns
ns
5