AT27C020-55PU Atmel, AT27C020-55PU Datasheet - Page 5

• Manufacturer Part Number: AT27C020-55PU
• Description: IC OTP 2MBIT 55NS 32DIP
• Manufacturer: Atmel

Specifications of AT27C020-55PU

• Format - Memory: EPROMs
• Memory Type: OTP EPROM
• Memory Size: 2M (256K x 8)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-DIP (0.600", 15.24mm)
• Organization: 256 K x 8
• Access Time: 55 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: 85 C
• Interface Type: Parallel
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Capacitance, Input: 4 pF
• Capacitance, Output: 8 pF
• Current, Input, Leakage: ±1 μA
• Current, Operating: 25 mA (Read)
• Current, Output, Leakage: ±5
• Density: 2M
• Package Type: PDIP
• Temperature, Operating: -40 to +85 °C
• Time, Access: 55 ns
• Time, Address Setup: 2
• Time, Fall: 20 ns
• Time, Rise: 20 ns
• Voltage, Esd: 2000 V
• Voltage, Input, High: 5.5 V (Read)
• Voltage, Input, Low: 0.8 V (Read)
• Voltage, Output, High: 2.4 V (Read)
• Voltage, Output, Low: 0.4 V (Read)
• Voltage, Supply: 5 V
• Memory Configuration: 256K X 8
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: PDIP
• No. Of Pins: 32
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9. AC Characteristics for Read Operation
10. AC Waveforms for Read Operation
Notes:
0570G–EPROM–12/07
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
(2)
(4)(5)
(2)(3)
(3)
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
Max
ACC
55
55
20
18
CE
AT27C020
.
.
Min
0
-90
AT27C020
Max
90
90
35
20
Units
ns
ns
ns
ns
ns
5