參數(shù)資料
型號(hào): AM29F032B-90EI
廠商: ADVANCED MICRO DEVICES INC
元件分類: PROM
英文描述: 32 Megabit (4 M x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
中文描述: 4M X 8 FLASH 5V PROM, 90 ns, PDSO40
封裝: MO-142CD, TSOP-40
文件頁(yè)數(shù): 18/39頁(yè)
文件大小: 937K
代理商: AM29F032B-90EI
Am29F032B
17
Command Definitions
Table 5.
Am29F032B Command Definitions
Legend:
X = Don’t care
RA = Address of the memory location to be read.
RD = Data read from location RA during read operation.
PA = Address of the memory location to be programmed.
Addresses latch on the falling edge of the WE# or CE# pulse,
whichever happens later.
PD = Data to be programmed at location PA. Data latches on
the rising edge of WE# or CE# pulse, whichever happens first.
SA = Address of the sector to be verified (in autoselect mode)
or erased. Address bits A21–A16 select a unique sector.
SGA = Address of the sector group to be verified. Address
bits A21–A18 select a unique sector group.
Notes:
1. See Table 1 for description of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all bus
cycles are write operations.
4. Address bits A21–A11 are don’t cares for unlock and
command cycles, unless SA or PA required.
5. No unlock or command cycles required when reading
array data.
6. The Reset command is required to return to reading array
data when device is in the autoselect mode, or if DQ5
goes high (while the device is providing status data).
7. The fourth cycle of the autoselect command sequence is
a read cycle.
8. The data is 00h for an unprotected sector group and 01h
for a protected sector group.See “Autoselect Command
Sequence
for more information.
9. The system may read and program in non-erasing
sectors, or enter the autoselect mode, when in the Erase
Suspend mode. The Erase Suspend command is valid
only during a sector erase operation.
10. The Erase Resume command is valid only during the
Erase Suspend mode.
Command
Sequence
(Note 1)
C
Bus Cycles (Notes 2–4)
First
Second
Third
Fourth
Fifth
Sixth
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr Data
Addr
Data
Read (Note 5)
1
RA
RD
Reset (Note 6)
1
XXX
F0
Autoselect
(Note 7)
Manufacturer ID
4
555
AA
2AA
55
555
90
X00
01
Device ID
4
555
AA
2AA
55
555
90
X01
41
Sector Group Protect
Verify (Note 8)
4
555
AA
2AA
55
555
90
SGA
X02
XX00
XX01
Program
4
555
AA
2AA
55
555
A0
PA
PD
Chip Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Sector Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
SA
30
Erase Suspend (Note 9)
1
XXX
B0
Erase Resume (Note 10)
1
XXX
30
相關(guān)PDF資料
PDF描述
AM29F032B-90FC 32 Megabit (4 M x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F032B-90FE 32 Megabit (4 M x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F032B-90FI 32 Megabit (4 M x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F032B-90SC 32 Megabit (4 M x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
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