AT29BV040A-20JU Atmel, AT29BV040A-20JU Datasheet - Page 10

• Manufacturer Part Number: AT29BV040A-20JU
• Description: IC FLASH 4MBIT 200NS 32PLCC
• Manufacturer: Atmel

Specifications of AT29BV040A-20JU

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K 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

16. Program Cycle Characteristics
17. Software Protected Program Waveform
Notes:
18. Programming Algorithm
Notes:
10
Symbol
t
t
t
t
t
t
t
t
WC
AS
AH
DS
DH
WP
BLC
WPH
1. OE must be high when WE and CE are both low.
2. A8 through A18 must specify the sector address during each high to low transition of WE (or CE) after the software code has
3. All bytes that are not loaded within the sector being programmed will be indeterminate.
1. Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex).
2. Data Protect state will be re-activated at end of program cycle.
3. 256 bytes of data MUST BE loaded.
AT29BV040A
been entered.
Parameter
Write Cycle Time
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
(1)
SECTOR (256 BYTES)
ADDRESS 2AAA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
LOAD DATA A0
LOAD DATA 55
LOAD DATA
TO
TO
TO
TO
(3)
WRITES ENABLED
ENTER DATA
PROTECT STATE
(2)
Min
100
100
200
200
10
10
Max
150
20
0383J–FLASH–9/08
Units
ms
ns
ns
ns
ns
ns
µs
ns