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

• Manufacturer Part Number: AT28BV256-20JU
• Description: IC EEPROM 256KBIT 200NS 32PLCC
• Manufacturer: Atmel

Specifications of AT28BV256-20JU

• 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: 32-PLCC
• 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
9