AM29F010A Advanced Micro Devices, AM29F010A Datasheet - Page 13

• Manufacturer Part Number: AM29F010A
• Description: 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only/ Uniform Sector Flash Memory
• Manufacturer: Advanced Micro Devices

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.
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 command
4. No unlock or command cycles required when reading array
5. The Reset command is required to return to reading array
6. The device accepts the three-cycle reset command
Read (Note 4)
Reset (Note 5)
Reset (Note 6)
Autoselect
(Note 7)
Program
Chip Erase
Sector Erase
Erase Suspend (Note 9)
Erase Resume (Note 10)
bus cycles are write operations.
data.
data when device is in the autoselect mode, or if DQ5 goes
high (while the device is providing status data).
sequence for backward compatibility.
Command
Sequence
(Note 1)
Manufacturer ID
Device ID
Sector Protect Verify
(Note 8)
Table 4. Am29F010A Command Definitions
1
1
3
4
4
4
4
6
6
1
1
XXXX
Addr
XXX
XXX
555
555
555
555
555
555
555
RA
First
Data
RD
AA
AA
AA
AA
AA
AA
AA
F0
B0
30
Am29F010A
Addr
2AA
2AA
2AA
2AA
2AA
2AA
2AA
Second
Data
55
55
55
55
55
55
55
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 A16–A14 uniquely select any sector.
7. The fourth cycle of the autoselect command sequence is a
8. The data is 00h for an unprotected sector and 01h for a
9. The system may read in non-erasing sectors, or enter the
10. The Erase Resume command is valid only during the Erase
read operation.
protected sector. See “Autoselect Command Sequence” for
more information.
autoselect mode, when in the Erase Suspend mode. The
Erase Suspend command is valid only during a sector erase
operation.
Suspend mode.
Addr
555
555
555
555
555
555
555
Bus Cycles (Notes 2-3)
Third
Data Addr
F0
A0
90
90
90
80
80
(SA)
X02
X00
X01
555
555
PA
Fourth
Data
PD
AA
AA
00
01
01
20
Addr Data
2AA
2AA
Fifth
55
55
Addr
555
SA
Sixth
Data
10
30
13