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参数资料
| 型号： | AT49SV802AT-90TI |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 8-megabit 1.8-volt Only Flash Memory |
| 中文描述： | 512K X 16 FLASH 1.8V PROM, 90 ns, PDSO48 |
| 封装： | 12 X 20 MM, PLASTIC, MO-142DD, TSOP1-48 |
| 文件页数： | 1/31页 |
| 文件大小： | 417K |
| 代理商： | AT49SV802AT-90TI |
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Features
Single Voltage Read/Write Operation: 1.65V to 1.95V
Access Time – 90 ns
Sector Erase Architecture
– Fifteen 32K Word (64K Bytes) Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout
Fast Byte/Word Program Time – 12 μs
Fast Sector Erase Time – 300 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 Byte/Word in the Non-suspending Sectors by Suspending
Programming of Any Other Byte/Word
Low-power Operation
– 12 mA Active
– 13 μA Standby
Data Polling, Toggle Bit, Ready/Busy for End of Program Detection
RESET Input for Device Initialization
Sector Lockdown Support
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 Option
1.
The AT49SV802A(T) is a 1.8-volt 8-megabit Flash memory organized as 524,288
words of 16 bits each or 1,048,576 bytes of 8 bits each. The x16 data appears on
I/O0 - I/O15; the x8 data appears on I/O0 - I/O7. The memory is divided into 23 sec-
tors for erase operations. The AT49SV802A(T) is offered in a 48-lead TSOP and a
48-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.
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
“Sector Lockdown” on page 7
).
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 end of a program or an erase cycle is detected by the
READY/BUSY pin, Data Polling or by the toggle bit.
8-megabit
(512K x 16/
1M x 8)
1.8-volt Only
Flash Memory
AT49SV802A
AT49SV802AT
Preliminary
3522C–FLASH–3/05
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