参数资料
型号: AT49SN6416T-70CI
厂商: ATMEL CORP
元件分类: DRAM
英文描述: 64-megabit (4M x 16) Burst/Page Mode 1.8-volt Flash Memory
中文描述: 4M X 16 FLASH 1.8V PROM, 70 ns, CBGA56
封装: 7 X 10 MM, 1 MM HEIGHT, 0.75 MM PITCH, CERAMIC, BGA-56
文件页数: 17/42页
文件大小: 418K
代理商: AT49SN6416T-70CI
17
3464C–FLASH–2/05
AT49SN6416(T)
3.30
Sector Erase Flowchart
Start
No
Suspend
Erase
1
0
Yes
Suspend
Erase
Loop
Write 20,
Address
Sector
Write D0,
Address
Sector
ReadStatus
Register
SR7 =
Full Erase
Status Check
(If Desired)
Erase
Complete
(
Erase)
(Erase Confirm)
Sector
Sector
3.31
Sector Erase Procedure
Bus
Operation
Command
Comments
Write
Sector
Erase
Setup
Data = 20
Addr = Sector to be erased (SA)
Write
Erase
Confirm
Data = D0
Addr = Sector to be erased (SA)
Read
None
Status register data: Toggle CE
or
OE to update status register data
Idle
None
Check SR7
1 = WSMS Ready
0 = WSMS Busy
Repeat for subsequent sector erasures.
Full status register check can be done after each sector erase,
or after a sequence of sector erasures.
Write FF after the last operation to enter read mode.
3.32
Full Erase Status Check Flowchart
0
0
0
1
1,1
1
1
0
ReadStatus
Register
Erase
Successful
SR1 =
Sector
Sector
Locked
Error
SR3 =
V
PP
Range
Error
SR4, SR5
=
Command
Sequence Error
SR5 =
Erase
Error
Sector
3.33
Full Erase Status Check Procedure
Bus
Operation
Command
Comments
Idle
None
Check SR3:
1 = V
PP
Range Error
Check SR4, SR5:
Both 1 = Command Sequence
Error
Idle
None
Idle
None
Check SR5:
1 = Sector Erase Error
Idle
None
Check SR1:
1 = Attempted erase of locked
sector; erase aborted.
SR1, SR3 must be cleared before the Write State Machine
allows further erase attempts.
Only the Clear Status Register command clears SR1, SR3,
SR4, SR5.
If an error is detected, clear the status register before
attempting an erase retry or other error recovery.
相关PDF资料
PDF描述
AT49SN6416 64-megabit (4M x 16) Burst/Page Mode 1.8-volt Flash Memory
AT49SV322A 32-megabit (2M x 16/4M x 8) 1.8-volt Only Flash Memory
AT49SV322AT 32-megabit (2M x 16/4M x 8) 1.8-volt Only Flash Memory
AT49SV802A-90CI 8-megabit 1.8-volt Only Flash Memory
AT49SV802A-90CU 8-megabit 1.8-volt Only Flash Memory
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