参数资料
型号: AT49LW040-33JC
厂商: ATMEL CORP
元件分类: DRAM
英文描述: 8-megabit and 4-megabit Firmware Hub Flash Memory
中文描述: 512K X 8 FLASH 3V PROM, 11 ns, PQCC32
封装: PLASTIC, MS-016AE, LCC-32
文件页数: 20/34页
文件大小: 465K
代理商: AT49LW040-33JC
20
AT49LW080/040
1966C
FLASH
03/02
Notes:
1. Check B7 to determine sector erase or program completion. B6 - B0 are invalid while B7 =
0
.
2. If both B5 and B4 are
1
s after a sector erase attempt, an improper command sequence was entered.
3. B3 does not provide a continuous indication of V
PP
level. The WSM interrogates and indicates the V
PP
level only after a sec-
tor erase or program operation. B3 is not guaranteed to report accurate feedback only when V
PP
V
PPH1/2
.
4. B1 does not provide a continuous indication of Write Lock bit, TBL pin or WP pin values. The WSM interrogates the Write
Lock bit, TBL pin or WP pin only after a sector erase or program operation. Depending on the attempted operation, it informs
the system whether or not the selected sector is locked.
5. B0 is reserved for future use and should be masked out when polling the status register.
Status Register Definition
B7
Write State Machine Status
(1)
1
Ready
0
Busy
B6
Erase Suspend Status
1
Sector Erase Suspended
0
Sector Erase in Progress/Completed
B5
Erase Status
(2)
1
Error in Sector Erasure
0
Successful Sector Erase
B4
Program Status
1
Error in Program
0
Successful Program
B3
V
PP
Status
(3)
1
V
PP
Low Detect, Operation Abort
0
V
PP
OK
B2
Program Suspend Status
1
Program Suspended
0
Program in Progress/Completed
B1
Device Protect Status
(4)
1
Write Lock Bit, TBL Pin or WP Pin Detected, Operation Abort
0
Unlock
B0
Reserved for Future Enhancements
(5)
相关PDF资料
PDF描述
AT49LW040-33TC 8-megabit and 4-megabit Firmware Hub Flash Memory
AT49LW080 8-megabit and 4-megabit Firmware Hub Flash Memory
AT49LW080-33JC 8-megabit and 4-megabit Firmware Hub Flash Memory
AT49LW080-33TC 8-megabit and 4-megabit Firmware Hub Flash Memory
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