AT49F040A-55JI SL383 Atmel, AT49F040A-55JI SL383 Datasheet - Page 11

• Manufacturer Part Number: AT49F040A-55JI SL383
• Description: IC FLASH 4MBIT 55NS 32PLCC
• Manufacturer: Atmel

Specifications of AT49F040A-55JI SL383

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 55ns
• 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

19. Program Cycle Characteristics
20. Program Cycle Waveforms
21. Sector or Chip Erase Cycle Waveforms
Notes:
3359D–FLASH–3/05
Symbol
t
t
t
t
t
t
t
t
BP
AS
AH
DS
DH
WP
WPH
EC
1. OE must be high only when WE and CE are both low.
2. For chip erase, the address should be 555. For sector erase, the address depends on what sector is to be erased.
3. For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
(See note 4 under
Parameter
Byte Programming Time
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Write Pulse Width
Write Pulse Width High
Chip Erase Cycle Time
8
8
“Command Definition Table” on page
6.)
Min
25
20
20
20
0
0
Typ
20
Max
40
12
AT49F040A
seconds
Units
µs
ns
ns
ns
ns
ns
ns
11