AT28BV256-20TU Atmel, AT28BV256-20TU Datasheet - Page 9

• 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

14. AC Write Characteristics
Note:
15. AC Write Waveforms
15.1
15.2
0273K–PEEPR–2/09
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
DV
, t
, t
OES
OEH
1. NR = No Restriction.
WE Controlled
CE Controlled
Parameter
Address, OE Set-up Time
Address Hold Time
Chip Select Set-up Time
Chip Select Hold Time
Write Pulse Width (WE or CE)
Data Set-up Time
Data, OE Hold Time
Time to Data Valid
t
t
OES
t
OES
t
t
t
CS
CS
AS
AS
t
t
AH
t
AH
t
DV
DV
t
t
WP
WP
t
t
DS
DS
t
t
OEH
OEH
t
t
CH
CH
t
WPH
t
t
t
WPH
DH
DH
NR
Min
200
50
50
0
0
0
0
(1)
Max
AT28BV256
Units
ns
ns
ns
ns
ns
ns
ns
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