AT49BV040T-20CI View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
AT49BV040T-20CI Datasheet PDF : 12 Pages
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Command Definition (in Hex)
Command
Sequence
Read
Chip Erase
Byte Program
Boot Block Lockout(1)
Product ID Entry
Product ID Exit(2)
Product ID Exit(2)
Bus
Cycles
1
6
4
6
3
3
1
1st Bus
Cycle
Addr Data
Addr
5555
DOUT
AA
5555 AA
5555 AA
5555 AA
5555 AA
XXXX F0
2nd Bus
Cycle
Addr Data
2AAA 55
2AAA 55
2AAA 55
2AAA 55
2AAA 55
3rd Bus
Cycle
Addr Data
5555 80
5555 A0
5555 80
5555 90
5555 F0
4th Bus
Cycle
Addr Data
5555 AA
Addr DIN
5555 AA
5th Bus
Cycle
Addr Data
2AAA 55
2AAA 55
6th Bus
Cycle
Addr Data
5555 10
5555 40
Notes: 1. The 16K byte boot sector has the address range 00000H to 03FFFH for the AT49BV/LV040 and 7C000H to 7FFFFH for the
AT49BV/LV040T.
2. Either one of the Product ID exit commands can be used.
Absolute Maximum Ratings*
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 VCC + 0.6V
Voltage on OE
with Respect to Ground ..................................-0.6V to + 13.5V
*NOTICE:
Stresses beyond those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions beyond those indicated in the operational sec-
tions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect device reliability.
4
AT49BV/LV040
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