AT29C257-20JI Atmel, AT29C257-20JI Datasheet - Page 6

• Manufacturer Part Number: AT29C257-20JI
• Description: IC FLASH 256KBIT 200NS 32PLCC
• Manufacturer: Atmel

Specifications of AT29C257-20JI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 256K (32K x 8)
• Speed: 200ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT29C25720JI

AC Byte Load Waveforms
AC Byte Load Characteristics
4-110
WE Controlled
CE Controlled
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
WPH
, t
, t
OES
OEH
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
Write Pulse Width High
AT29C257
Min
100
50
90
35
0
0
0
0
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns