參數(shù)資料
型號： AT49BV320D
廠商： Atmel Corp.
英文描述： 32-megabit (2M x 16) 3-volt Only Flash Memory
中文描述： 32兆位（200萬× 16）3伏，只有閃存
文件頁數(shù)： 1/33頁
文件大?。?/td> 329K
代理商： AT49BV320D
Features
Single Voltage Read/Write Operation: 2.65V to 3.6V
Access Time – 70 ns
Sector Erase Architecture
– Sixty-three 32K Word (64K Bytes) Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout
Fast Word Program Time – 10 μs
Fast Sector Erase Time – 100 ms
Suspend/Resume Feature for Erase and Program
– Supports Reading and Programming 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
WP Pin for Sector Protection
RESET Input for Device Initialization
Flexible Sector Protection
TSOP and CBGA Package Options
Top or Bottom Boot Block Configuration Available
128-bit Protection Register
Minimum 100,000 Erase Cycles
Common Flash Interface (CFI)
Green (Pb/Halide-free) Packaging
1.
The AT49BV320D(T) is a 2.7-volt 32-megabit Flash memory organized as 2,097,152
words of 16 bits each. The memory is divided into 71 sectors for erase operations.
The device is offered in a 48-lead TSOP package and a 47-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-sys-
tem programming.
Description
The device powers on in the read mode. Command sequences are used to place
the device in other operation modes such as program and erase. The device has
the capability to protect the data in any sector (see
“Flexible Sector Protection” on
page 6
).
To increase the flexibility of the device, it contains an Erase Suspend and Program
Suspend feature. This feature will put the erase or program on hold for any amount of
time and let the user read data from or program data to any of the remaining sectors
within the memory.
The VPP pin provides data protection. When the V
PP
input is below 0.4V, the program
and erase functions are inhibited. When V
PP
is at 1.65V or above, normal program
and erase operations can be performed. With V
PP
at 10.0V, the program (Dual-word
Program command) operation is accelerated.
32-megabit
(2M x 16)
3-volt Only
Flash Memory
AT49BV320D
AT49BV320DT
3581C–FLASH–11/05
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