AT28C256-15PU Atmel, AT28C256-15PU Datasheet - Page 9

• Manufacturer Part Number: AT28C256-15PU
• Description: IC EEPROM 256KBIT 150NS 28DIP
• Manufacturer: Atmel

Specifications of AT28C256-15PU

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 150ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Organization: 32 K x 8
• Interface Type: SPI
• Access Time: 150 ns
• Output Enable Access Time: 70 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 50 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 5 V
• Capacitance, Input: 4 pF
• Capacitance, Output: 8 pF
• Current, Input, Leakage: 10 μA
• Current, Operating: 50 mA
• Current, Output, Leakage: 10
• Data Retention: 10 yrs.
• Density: 256K
• Package Type: PDIP
• Power Dissipation: 440 mW
• Temperature, Operating: -40 to +85 °C
• Time, Access: 150 ns
• Time, Address Hold: 50
• Voltage, Input, High: 2 V
• Voltage, Input, Low: 0.8 V
• Voltage, Output, High: 2.4 V
• Voltage, Output, Low: 0.45 V
• Voltage, Supply: 5 V
• Memory Configuration: 32K X 8
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: DIP
• No. Of Pins: 28
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16. Page Mode Characteristics
17. Page Mode Write Waveforms
Notes:
18. Chip Erase Waveforms
0006M–PEEPR–12/09
Symbol
t
t
t
t
t
t
t
t
WC
AS
AH
DS
DH
WP
BLC
WPH
1. A6 through A14 must specify the same page address during each high to low transition of WE (or CE).
2. OE must be high only when WE and CE are both low.
Parameter
Write Cycle Time (option available)
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
t
t
V
S
W
H
= t
= 10 msec (min.)
= 12.0V ± 0.5V
H
= 5 µsec (min.)
(1)(2)
AT28C256
AT28C256F
Min
100
50
50
50
0
0
Max
150
10
3
AT28C256
Units
ms
ms
ns
ns
ns
ns
ns
µs
ns
9