AT49F040-90VI Atmel, AT49F040-90VI Datasheet - Page 4

• Manufacturer Part Number: AT49F040-90VI
• Description: IC FLASH 4MBIT 90NS 32TSOP
• Manufacturer: Atmel

Specifications of AT49F040-90VI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT49F04090VI

Command Definition (in Hex)
Notes:
Absolute Maximum Ratings*
4
Command
Sequence
Read
Chip Erase
Byte Program
Boot Block Lockout
Product ID Entry
Product ID Exit
Product ID Exit
Temperature Under Bias................................ -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
All Input Voltages
(including NC Pins)
with Respect to Ground ...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground .............................-0.6V to V
Voltage on OE
with Respect to Ground ...................................-0.6V to +13.5V
1. The 16K byte boot sector has the address range 00000H to 03FFFH.
2. Either one of the Product ID exit commands can be used.
(2)
(2)
(1)
Cycles
AT49F040
Bus
1
6
4
6
3
3
1
XXXX
5555
5555
5555
5555
5555
Addr
Addr
1st Bus
Cycle
D
Data
AA
AA
AA
AA
AA
F0
OUT
CC
2AAA
2AAA
2AAA
2AAA
2AAA
Addr
+ 0.6V
2nd Bus
Cycle
Data
55
55
55
55
55
*NOTICE:
5555
5555
5555
5555
5555
Addr
3rd Bus
Cycle
Data
A0
80
80
90
F0
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
5555
5555
Addr
Addr
4th Bus
Cycle
Data
AA
D
AA
IN
2AAA
2AAA
Addr
5th Bus
Cycle
Data
55
55
5555
5555
Addr
6th Bus
Cycle
Data
10
40