AT28C256-15UM/883 Atmel, AT28C256-15UM/883 Datasheet - Page 8

• Manufacturer Part Number: AT28C256-15UM/883
• Description: IC EEPROM 256KBIT 150NS 28PGA
• Manufacturer: Atmel

Specifications of AT28C256-15UM/883

• 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: -55°C ~ 125°C
• Package / Case: 28-PGA
• Organization: 32 K x 8
• Interface Type: Parallel
• Access Time: 150 ns
• Output Enable Access Time: 70 ns
• Supply Voltage (max): 5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 50 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Operating Supply Voltage: 2.7 V, 3.6 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

14. AC Write Characteristics
Note:
15. AC Write Waveforms
15.1
15.2
8
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
AT28C256
Parameter
Address, OE Setup Time
Address Hold Time
Chip Select Setup Time
Chip Select Hold Time
Write Pulse Width (WE or CE)
Data Setup Time
Data, OE Hold Time
Time to Data Valid
NR
Min
100
50
50
0
0
0
0
(1)
Max
0006M–PEEPR–12/09
Units
ns
ns
ns
ns
ns
ns
ns