AT28BV256-20TU Atmel, AT28BV256-20TU Datasheet - Page 7

• Manufacturer Part Number: AT28BV256-20TU
• Description: IC EEPROM 256KBIT 200NS 28TSOP
• Manufacturer: Atmel

Specifications of AT28BV256-20TU

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 200ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSOP
• Capacitance, Input: 4 pF
• Capacitance, Output: 8 pF
• Current, Input, Leakage: 10 μA
• Current, Operating: 15 mA
• Current, Output, Leakage: 10
• Data Retention: 10 yrs.
• Density: 256K
• Organization: 32K×8
• Package Type: TSOP
• Power Dissipation: 54 mW
• Temperature, Operating: -40 to +85 °C
• Time, Access: 200 ns
• Time, Address Hold: 50
• Voltage, Input, High: 2 V
• Voltage, Input, Low: 0.6 V
• Voltage, Output, High: 2 V
• Voltage, Output, Low: 0.3 V
• Voltage, Supply: 2.7 to 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9. AC Read Characteristics
10. AC Read Waveforms
Notes:
0273K–PEEPR–2/09
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.
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
t
ACC
L
t
= 5 pF).
CE
t
OE
t
OH
CE
Min
ACC
0
0
0
or by t
t
AT28BV256-20
DF
.
ACC
- t
OE
Max
200
200
80
55
after an address change
AT28BV256
Units
ns
ns
ns
ns
ns
7