Atmel AT49BV160D, Manual

Page: 15 / 29

15
3591A–FLASH–12/05
AT49BV160D(T)
Notes: 1. The DATA FORMAT shown for each bus cycle is as follows; I/O7 - I/O0 (Hex). I/O15 - I/O8 are don’t care. The ADDRESS
FORMAT shown for each bus cycle is as follows: A7 - A0 (Hex). Address A19 through A8 are don’t care.
2. SA = sector address. Any word address within a sector can be used to designate the sector address (see pages 17 and 18
for details).
3. This fast programming option enables the user to program two words in parallel only when V
PP
= 9.5V. The addresses,
Addr0 and Addr1, of the two words, D
IN0
and D
IN1
, must only differ in address A0. This command should be used during
manufacturing purposes only.
4. During the second bus cycle, the manufacturer code is read from address 00000H, the device code is read from address
00001H, and the data in the protection register is read from addresses 00081H - 00088H.
5. The status register bits are output on I/O7 - I/O0.
6. Any addresses within the user programmable protection register region. Address locations are shown on
“Protection Regis-
ter Addressing Table” on page 16 .
7. If data bit D1 is “0”, sector B is locked. If data bit D1 is “1”, sector B can be reprogrammed.
21. Command Definition Table
Command Sequence
Bus
Cycles
1st Bus Cycle 2nd Bus Cycle 3rd Bus Cycle
Addr Data Addr Data Addr Data
Read 1 XX FF
Sector Erase/Confirm 2 XX 20 SA
(2)
D0
Word Program 2 XX 40/10 Addr D
IN
Dual-word Program
(3)
3 XX E0 Addr0 D
IN0
Addr1 D
IN1
Erase/Program Suspend 1 XX B0
Erase/Program Resume 1 XX D0
Product ID Entry
(4)
1 XX 90
Sector Softlock 2 XX 60 SA
(2)
01
Sector Hardlock 2 XX 60 SA
(2)
2F
Sector Unlock 2 XX 60 SA
(2)
D0
Read Status Register 2 XX 70 XX D
OUT
(5)
Clear Status Register 1 XX 50
Program Protection Register 2 XX C0 Addr
(6)
D
IN
Lock Protection Register – Sector B 2 XX C0 80 FFFD
Status of Sector B Protection 2 XX 90 80 D
OUT
(7)
CFI Query 1 XX 98
22. Absolute Maximum Ratings*
Temperature under Bias ................................ -55°C to +125°C
*NOTICE: 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.
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
CCQ
+ 0.6V
Voltage on V
PP
with Respect to Ground ...................................-0.6V to +10.0V