10
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AT49SV163D(T)
Figure 4-3. Toggle Bit Algorithm
(Configuration Register = 00)
Note: 1. The system should recheck the toggle bit even if
I/O5 = “1” because the toggle bit may stop toggling
as I/O5 changes to “1”.
START
Read I/O7 - I/O0
Read I/O7 - I/O0
Toggle Bit =
Toggle?
I/O3, I/O5 = 1?
Read I/O7 - I/O0
Twice
Toggle Bit =
Toggle?
Program/Erase
Operation Not
Successful, Write
Product ID
Exit Command
Program/Erase
Operation
Successful, Device
in Read Mode
NO
NO
NO
YES
YES
YES
Figure 4-4. Toggle Bit Algorithm
(Configuration Register = 01)
Note: 1. The system should recheck the toggle bit even if
I/O5 = “1” because the toggle bit may stop toggling
as I/O5 changes to “1”.
START
Read I/O7 - I/O0
Read I/O7 - I/O0
Toggle Bit =
Toggle?
I/O3, I/O5 = 1?
Read I/O7 - I/O0
Twice
Toggle Bit =
Toggle?
Program/Erase
Operation Not
Successful, Write
Product ID
Exit Command
Program/Erase
Operation
Successful,
Write Product ID
Exit Command
NO
NO
NO
YES
YES
YES
11
3656A–FLASH–2/07
AT49SV163D(T)
Notes: 1. I/O5 switches to a “1” when a program or an erase operation has exceeded the maximum time limits or when a program or
sector erase operation is performed on a protected sector.
2. I/O3 switches to a “1” when the V
PP
level is not high enough to successfully perform program and erase operations.
5. Status Bit Table
Status Bit
I/O7 I/O7 I/O6 I/O5
(1)
I/O3
(2)
I/O2 RDY/BUSY
Configuration Register 00 01 00/01 00/01 00/01 00/01 00/01
Programming I/O7
0 TOGGLE 0 0 1 0
Erasing 0 0 TOGGLE 0 0 TOGGLE 0
Erase Suspended & Read
Erasing Sector
11100TOGGLE1
Erase Suspended & Read
Non-erasing Sector
DATA DATA DATA DATA DATA DATA 1
Erase Suspended &
Program Non-erasing Sector
I/O7
0 TOGGLE 0 0 TOGGLE 0
Erase Suspended &
Program Suspended and
Reading from Non-
suspended Sectors
DATA DATA DATA DATA DATA DATA 1
Program Suspended & Read
Programming Sector
I/O71100TOGGLE1
Program Suspended & Read
Non-programming Sector
DATA DATA DATA DATA DATA DATA 1
12
3656A–FLASH–2/07
AT49SV163D(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: A11 - A0 (Hex). Address A19 through A11 are don’t care.
2. Since A11 is a Don’t Care, AAA can be replaced with 2AA.
3. SA = sector address. Any word address within a sector can be used to designate the sector address (see pages 14 - 15 for
details).
4. 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.
5. Once a sector is in the lockdown mode, data in the protected sector cannot be changed unless the chip is reset or
power cycled.
6. Either one of the Product ID Exit commands can be used.
7. Bytes of data other than F0 may be used to exit the Product ID mode. However, it is recommended that F0 be used.
8. Any addresses within the user programmable protection register region. Address locations are shown on “Protection Regis-
ter Addressing Table” on page 13.
9. If data bit D1 is “0”, block B is locked. If data bit D1 is “1”, block B can be reprogrammed.
10. The default state (after power-up) of the configuration register is “00”.
11. When accessing the data in the CFI table, the address format is A15 - A0 (Hex).
6. Command Definition Table
Command
Sequence
Bus
Cycles
1st Bus
Cycle
2nd Bus
Cycle
3rd Bus
Cycle
4th Bus
Cycle
5th Bus
Cycle
6th Bus
Cycle
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
Read 1 Addr D
OUT
Chip Erase 6 555 AA AAA
(2)
55 555 80 555 AA AAA 55 555 10
Sector Erase 6 555 AA AAA 55 555 80 555 AA AAA 55 SA
(3)
30
Word Program 4 555 AA AAA 55 555 A0 Addr D
IN
Dual Word
Program
(4)
5 555 AA AAA 55 555 E0 Addr0 D
IN0
Addr1 D
IN1
Enter Single Pulse
Program Mode
6 555 AA AAA 55 555 80 555 AA AAA 55 555 A0
Single Pulse Word
Program
1AddrD
IN
Sector Lockdown 6 555 AA AAA
(2)
55 555 80 555 AA AAA 55 SA
(3)(5)
60
Erase/Program
Suspend
1 XXX B0
Erase/Program
Resume
1 XXX 30
Product ID Entry 3 555 AA AAA 55 555 90
Product ID Exit
(6)
3 555 AA AAA 55 555 F0
(7)
Product ID Exit
(6)
1 XXX F0
(7)
Program Protection
Register
4 555 AA AAA 55 555 C0 Addr
(8)
D
IN
Lock Protection
Register - Block B
4 555 AA AAA 55 555 C0 080 X0
Status of Block B
Protection
4 555 AA AAA 55 555 90 80 D
OUT
(9)
Set Configuration
Register
4 555 AA AAA 55 555 D0 XXX 00/01
(10)
CFI Query
(11)
1 X55 98

AT49SV163D-80TU

Mfr. #:
Manufacturer:
Microchip Technology / Atmel
Description:
NOR Flash Parallel Flash 1.8V 80NS
Lifecycle:
New from this manufacturer.
Delivery:
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