參數(shù)資料
型號(hào): AT49LV8192A
廠商: Atmel Corp.
英文描述: 8-megabit 3-volt Flash Memory(8M位 3V閃速存儲(chǔ)器)
中文描述: 8兆位3伏的快閃記憶體(800萬(wàn)位3V的閃速存儲(chǔ)器)
文件頁(yè)數(shù): 1/16頁(yè)
文件大?。?/td> 332K
代理商: AT49LV8192A
1
Features
Single-voltage Read/Write Operation: 2.7V to 3.6V (BV), 3.0V to 3.6V (LV)
Fast Read Access Time – 90 ns
Internal Erase/Program Control
Sector Architecture
One 8K Word (16K Bytes) Boot Block with Programming Lockout
Two 4K Word (8K Bytes) Parameter Blocks
One 496K Word (992K Bytes) Main Memory Array Block
Fast Sector Erase Time
10 seconds
Byte-by-byte or Word-by-word Programming
30 μs Typical
Hardware Data Protection
Data Polling for End of Program Detection
Low Power Dissipation
25 mA Active Current
50 μA CMOS Standby Current
Typical 10,000 Write Cycles
Description
The AT49BV008A(T) and AT49BV8192A(T) are 3-volt, 8-megabit Flash memories
organized as 1,048,576 words of 8 bits each or 512K words of 16 bits each. Manufac-
tured with Atmel
s advanced nonvolatile CMOS technology, the devices offer access
times to 90 ns with power dissipation of just 67 mW at 2.7V read. When deselected,
the CMOS standby current is less than 50 μA.
The device contains a user-enabled
boot block
protection feature. Two versions of
the feature are available: the AT49BV008A/8192A locates the boot block at lowest
order addresses (
bottom boot
); the AT49BV008AT/8192AT locates it at highest
order addresses (
top boot
).
To allow for simple in-system reprogrammability, the AT49BV008A(T)/8192A(T) does
not require high input voltages for programming. Reading data out of the device is
similar to reading from an EPROM; it has standard CE, OE and WE inputs to avoid
8-megabit
(1M x 8/
512K x 16)
Flash Memory
AT49BV008A
AT49BV008AT
AT49BV8192A
AT49BV8192AT
AT49LV8192A
Rev. 1049H
06/00
Pin Configurations
Pin Name
Function
A0 - A18
Addresses
CE
Chip Enable
OE
Output Enable
WE
Write Enable
RESET
Reset
RDY/BUSY
Ready/Busy Output
VPP
VPP can be left unconnected or
connected to VCC, GND, 5V or 12V.
The input has no effect on the
operation of the device.
I/O0 - I/O14
Data Inputs/Outputs
I/O15 (A-1)
I/O15 (Data Input/Output, Word Mode)
A-1 (LSB Address Input, Byte Mode)
BYTE
Selects Byte or Word Mode
NC
No Connect
(continued)
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