AT29C256-90TC Atmel, AT29C256-90TC Datasheet - Page 9

• Manufacturer Part Number: AT29C256-90TC
• Manufacturer: Atmel

Specifications of AT29C256-90TC

• Density: 256Kb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 15b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP-I
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8b
• Number Of Words: 32K
• Supply Current: 50mA
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

14. AC Byte Load Characteristics
15. AC Byte Load Waveforms
15.1
15.2
0046S–FLASH–2/07
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
WPH
, t
,t
OEH
OES
WE Controlled
CE Controlled
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
Write Pulse Width High
Parameter
Min
100
90
35
50
0
0
0
0
Max
AT29C256
Units
ns
ns
ns
ns
ns
ns
ns
ns
9