March 2001
®
AS29LV800
Item
Temporary
sector
unprotect
RESET
Deep
power down
Automatic
sleep mode
Description
Temporarily disables sector protection for in-system data changes to protected sectors. Apply +10V to RESET
to activate temporary sector unprotect mode. During temporary sector unprotect mode, program protected
sectors by selecting the appropriate sector address. All protected sectors revert to protected state on removal
of +10V from RESET.
Resets the interal state machine to read mode. If device is programming or erasing when RESET = L, data
may be corrupted.
Hold RESET low to enter deep power down mode (
<
1 µA). Recovery time to start of first read cycle is 50ns.
Enabled automatically when addresses remain stable for 300ns. Typical current draw is 1 µA. Existing data is
available to the system during this mode. If an address is changed, automatic sleep mode is disabled and new
data is returned within standard access times.
Flexible sector architecture
Bottom boot sector architecture (AS29LV800B)
Sector
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
×8
00000h–03FFFh
04000h–05FFFh
06000h–07FFFh
08000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–7FFFFh
80000h–8FFFFh
90000h–9FFFFh
A0000h–AFFFFh
B0000h–BFFFFh
C0000h–CFFFFh
D0000h–DFFFFh
E0000h–EFFFFh
F0000h–FFFFFh
×16
00000h–01FFFh
02000h–02FFFh
03000h–03FFFh
04000h–07FFFh
08000h–0FFFFh
10000h–17FFFh
18000h–1FFFFh
20000h–27FFFh
28000h–2FFFFh
30000h–37FFFh
38000h–3FFFFh
40000h–47FFFh
48000h–4FFFFh
50000h–57FFFh
58000h–5FFFFh
60000h–67FFFh
68000h–6FFFFh
70000h–77FFFh
78000h–7FFFFh
Size
(Kbytes)
16
8
8
32
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
Top boot sector architecture (AS29LV800T)
×8
00000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–7FFFFh
80000h–8FFFFh
90000h–9FFFFh
A0000h–AFFFFh
B0000h–BFFFFh
C0000h–CFFFFh
D0000h–DFFFFh
E0000h–EFFFFh
F0000h–F7FFFh
F8000h–F9FFFh
FA000h–FBFFFh
FC000h–FFFFFh
×16
00000h–07FFFh
08000h–0FFFFh
10000h–17FFFh
18000h–1FFFFh
20000h–27FFFh
28000h–2FFFFh
30000h–37FFFh
38000h–3FFFFh
40000h–47FFFh
48000h–4FFFFh
50000h–57FFFh
58000h–5FFFFh
60000h–67FFFh
68000h–6FFFFh
70000h–77FFFh
78000h–7BFFFh
7C000h–7CFFFh
7D000h–7DFFFh
7E000h–7FFFFh
Size
(Kbytes)
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
32
8
8
16
In word mode, there are one 8K word, two 4K word, one 16K word, and fifteen 32K word sectors. Address range is A18–A-1 if BYTE = V
IL
; address range is
A18–A0 if BYTE = V
IH
.
3/22/01; V.1.0
Alliance Semiconductor
P. 4 of 25
ANADIGICS [ ANADIGICS, INC ]
