AM29LV002 Datasheet, PDF (9/34 Pages) Advanced Micro Devices – 2 Megabit (256 K x 8-Bit) CMOS 3.0 Volt-only, Boot Sector Flash Memory

PRELIMINARY
Table 2. Sector Address Tables (Am29LV002T)
Sector
A17
A16
A15
A14
A13
SA0
0
0
X
X
X
SA1
0
1
X
X
X
Sector Size
64 Kbytes
64 Kbytes
SA2
1
0
X
X
X
SA3
1
1
0
X
X
SA4
1
1
1
0
0
64 Kbytes
32 Kbytes
8 Kbytes
SA5
1
1
1
0
1
SA6
1
1
1
1
X
8 Kbytes
16 Kbytes
Table 3. Sector Address Tables (Am29LV002B)
Sector
A17
A16
A15
A14
A13
SA0
0
0
0
0
X
Sector Size
16 Kbytes
SA1
0
0
0
1
0
8 Kbytes
SA2
0
0
0
1
1
SA3
0
0
1
X
X
SA4
0
1
X
X
X
8 Kbytes
32 Kbytes
64 Kbytes
SA5
1
0
X
X
X
SA6
1
1
X
X
X
64 Kbytes
64 Kbytes
Address Range
00000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–37FFFh
38000h–39FFFh
3A000h–3BFFFh
3C000h–3FFFFh
Address Range
00000h–03FFFh
04000h–05FFFh
06000h–07FFFh
08000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equipment
to automatically match a device to be programmed with
its corresponding programming algorithm. However,
the autoselect codes can also be accessed in-system
through the command register.
When using programming equipment, the autoselect
mode requires V_ID (11.5 V to 12.5 V) on address pin
A9. Address pins A6, A1, and A0 must be as shown in
Table 4. In addition, when verifying sector protection,
the sector address must appear on the appropriate
highest order address bits (see Tables 2 and 3). Table
4 shows the remaining address bits that are don’t care.
When all necessary bits have been set as required, the
programming equipment may then read the corre-
sponding identifier code on DQ7–DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 5. This method
does not require V_ID. See “Command Definitions” for
details on using the autoselect mode.
Am29LV002
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