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PDF AT49BV640S Data sheet ( Hoja de datos )
| Número de pieza | AT49BV640S | |
| Descripción | 64-megabit (4M x 16) Secure 3-volt Only Memory | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• Sinwgwlew.VDoalttaaSgheeeOt4pUe.rcaotmion Read/Write: 2.65V - 3.6V
• Access Time – 70 ns
• Sector Erase Architecture
– One Hundred Twenty-seven 32K Word (64K Bytes) Main Sectors with
Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout
• Fast Word Program Time – 10 µs
• Typical Sector Erase Time: 32K Word Sectors – 700 ms; 4K Word Sectors – 100 ms
• Suspend/Resume Feature for Erase and Program
– Supports Reading and Programming Data from Any Sector by Suspending
Erase of a Different Sector
– Supports Reading Any Word by Suspending Programming of Any Other Word
• Low-power Operation
– 10 mA Active
– 15 µA Standby
• VPP Pin for Write Protection and Accelerated Program Operation
• RESET Input for Device Initialization
• Softlock Sector Protection
• Secure Lock and Freeze Feature
• Top or Bottom Boot Block Configuration Available
• 128-bit Protection Register
• Minimum 100,000 Erase Cycles
• Common Flash Interface (CFI)
• CBGA Green (Pb/Halide-free/RoHS Compliant) Packaging
1. Description
The AT49BV640S(T) is a 2.7-volt 32-megabit Flash memory organized as 4,194,304
words of 16 bits each. The memory is divided into 135 sectors for erase operations.
The device is offered in a 64-ball CBGA package. The device has CE and OE control
signals to avoid any bus contention. This device can be read or reprogrammed using
a single power supply, making it ideally suited for in-system programming.
In some applications, in addition to the standard softlock sector protection mecha-
nism, a requirement exists to allow for the permanent and irreversible locking of
selected regions in the memory. The AT49BV640S(T) allows the user to permanently
lock thirty-eight regions, and once activated these secure regions cannot be altered or
erased through Software or Hardware at any time. Once activated, no facility exists to
over-ride the secure lock mechanism. The size and the location of the secure regions
is determined by the Top or Bottom Boot Block designation. The location of the secure
regions is shown on pages 3 - 6.
The secure regions can be locked in any sequence and at any time during normal
device operation. Read operations can still be performed on any region that has the
secure lock feature enabled. Full read/write operations and standard sector opera-
tions including standard Sector locking can be performed on all regions that are not
secure locked.
64-megabit
(4M x 16)
Secure
3-volt Only
Memory
AT49BV640S
AT49BV640ST
Summary
(Complete
Datasheet
under NDA)
NOTE: This is a summary document.
The complete document is available
under NDA. For more information,
please contact your local Atmel sales
office.
3583AS–FLASH–9/06
1 page  
4. Memory Organization –
www.DataSheet4U.com
AT49BV640ST
Secure
Region
(SCR)
37
36
35
34
33
32
31
30
29
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19
SA20
SA21
SA22
SA23
SA24
SA25
SA26
SA27
SA28
SA29
SA30
SA31
SA32
SA33
SA34
SA35
Size
(Words)
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
x16
Address Range
(A21 - A0)
00000 - 07FFF
08000 - 0FFFF
10000 - 17FFF
18000 - 1FFFF
20000 - 27FFF
28000 - 2FFFF
30000 - 37FFF
38000 - 3FFFF
40000 - 47FFF
48000 - 4FFFF
50000 - 57FFF
58000 - 5FFFF
60000 - 67FFF
68000 - 6FFFF
70000 - 77FFF
78000 - 7FFFF
80000 - 87FFF
88000 - 8FFFF
90000 - 97FFF
98000 - 9FFFF
A0000 - A7FFF
A8000 - AFFFF
B0000 - B7FFF
B8000 - BFFFF
C0000 - C7FFF
C8000 - CFFFF
D0000 - D7FFF
D8000 - DFFFF
E0000 - E7FFF
E8000 - EFFFF
F0000 - F7FFF
F8000 - FFFFF
100000 - 107FFF
108000 - 10FFFF
110000 - 117FFF
118000 - 11FFFF
3583AS–FLASH–9/06
AT49BV640S(T) Summary
4. Memory Organization –
AT49BV640ST (Continued)
Secure
Region
(SCR)
28
27
26
25
24
23
22
21
20
Sector
SA36
SA37
SA38
SA39
SA40
SA41
SA42
SA43
SA44
SA45
SA46
SA47
SA48
SA49
SA50
SA51
SA52
SA53
SA54
SA55
SA56
SA57
SA58
SA59
SA60
SA61
SA62
SA63
SA64
SA65
SA66
SA67
SA68
SA69
SA70
SA71
Size
(Words)
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
32K
x16
Address Range
(A21 - A0)
120000 - 127FFF
128000 - 12FFFF
130000 - 137FFF
138000 - 13FFFF
140000 - 147FFF
148000 - 14FFFF
150000 - 157FFF
158000 - 15FFFF
160000 - 167FFF
168000 - 16FFFF
170000 - 177FFF
178000 - 17FFFF
180000 - 187FFF
188000 - 18FFFF
190000 - 197FFF
198000 - 19FFFF
1A0000 - 1A7FFF
1A8000 - 1AFFFF
1B0000 - 1B7FFF
1B8000 - 1BFFFF
1C0000 - 1C7FFF
1C8000 - 1CFFFF
1D0000 - 1D7FFF
1D8000 - 1DFFFF
1E0000 - 1E7FFF
1E8000 - 1EFFFF
1F0000 - 1F7FFF
1F8000 - 1FFFFF
200000 - 207FFF
208000 - 20FFFF
210000 - 217FFF
218000 - 21FFFF
220000 - 227FFF
228000 - 22FFFF
230000 - 237FFF
238000 - 23FFFF
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AT49BV640S.PDF ] | |
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