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参数资料
| 型号： | AT49BV802A-70TI |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 8-megabit (512K x 16/ 1M x 8) 3-volt Only Flash Memory |
| 中文描述： | 512K X 16 FLASH 3V PROM, 70 ns, PDSO48 |
| 封装： | 12 X 20 MM, PLASTIC, MO-142DD, TSOP1-48 |
| 文件页数： | 6/29页 |
| 文件大小： | 253K |
| 代理商： | AT49BV802A-70TI |
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6
AT49BV802A(T)
3405C–FLASH–9/04
SECTOR LOCKDOWN OVERRIDE:
The only way to unlock a sector that is locked down is
through reset or power-up cycles. After power-up or reset, the content of a sector that is
locked down can be erased and reprogrammed.
ERASE SUSPEND/ERASE RESUME:
The Erase Suspend command allows the system to
interrupt a sector or chip erase operation and then program or read data from a different sector
within the memory. After the Erase Suspend command is given, the device requires a maxi-
mum time of 15 μs to suspend the erase operation. After the erase operation has been
suspended, the system can then read data or program data to any other sector within the
device. An address is not required during the Erase Suspend command. During a sector erase
suspend, another sector cannot be erased. To resume the sector erase operation, the system
must write the Erase Resume command. The Erase Resume command is a one-bus cycle
command. The device also supports an erase suspend during a complete chip erase. While
the chip erase is suspended, the user can read from any sector within the memory that is pro-
tected. The command sequence for a chip erase suspend and a sector erase suspend are the
same.
PROGRAM SUSPEND/PROGRAM RESUME:
The Program Suspend command allows the
system to interrupt a programming operation and then read data from a different byte/word
within the memory. After the Program Suspend command is given, the device requires a max-
imum of 20 μs to suspend the programming operation. After the programming operation has
been suspended, the system can then read data from any other byte/word that is not con-
tained in the sector in which the programming operation was suspended. An address is not
required during the program suspend operation. To resume the programming operation, the
system must write the Program Resume command. The program suspend and resume are
one-bus cycle commands. The command sequence for the erase suspend and program sus-
pend are the same, and the command sequence for the erase resume and program resume
are the same.
PRODUCT IDENTIFICATION:
The product identification mode identifies the device and man-
ufacturer as Atmel. It may be accessed by hardware or software operation. The hardware
operation mode can be used by an external programmer to identify the correct programming
algorithm for the Atmel product.
For details, see “Operating Modes” on page 15 (for hardware operation) or “Software Product
Identification Entry/Exit” sections on page 22. The manufacturer and device codes are the
same for both modes.
128-BIT PROTECTION REGISTER:
The AT49BV802A(T) contains a 128-bit register that can
be used for security purposes in system design. The protection register is divided into two 64-
bit blocks. The two blocks are designated as block A and block B. The data in block A is
non-changeable and is programmed at the factory with a unique number. The data in block B
is programmed by the user and can be locked out such that data in the block cannot be repro-
grammed. To program block B in the protection register, the four-bus cycle Program
Protection Register command must be used as shown in the “Command Definition in Hex”
table on page 11. To lock out block B, the four-bus cycle Lock Protection Register command
must be used as shown in the “Command Definition in Hex” table. Data bit D1 must be zero
during the fourth bus cycle. All other data bits during the fourth bus cycle are don’t cares. To
determine whether block B is locked out, the Product ID Entry command is given followed by a
read operation from address 80H. If data bit D1 is zero, block B is locked. If data bit D1 is one,
block B can be reprogrammed. Please see the “Protection Register Addressing Table” on
page 12 for the address locations in the protection register. To read the protection register, the
Product ID Entry command is given followed by a normal read operation from an address
within the protection register. After determining whether block B is protected or not, or reading
the protection register, the Product ID Exit command must be given prior to performing any
other operation.
相关PDF资料 |
PDF描述 |
|---|---|
| AT49BV802AT | 8-megabit (512K x 16/ 1M x 8) 3-volt Only Flash Memory |
| AT49BV802AT-70CI | 8-megabit (512K x 16/ 1M x 8) 3-volt Only Flash Memory |
| AT49BV802AT-70TI | 8-megabit (512K x 16/ 1M x 8) 3-volt Only Flash Memory |
| AT49BV8192A-12CI | 8-Megabit 1M x 8/ 512K x 16 CMOS Flash Memory |
| AT49BV8192A-12TC | 8-Megabit 1M x 8/ 512K x 16 CMOS Flash Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT49BV802A-70TI SL383 | 功能描述:IC FLASH 8MBIT 70NS 48TSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
| AT49BV802A-70TI-T | 功能描述:IC FLASH 8MBIT 70NS 48TSOP 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 存储器类型:非易失 存储器格式:闪存 技术:FLASH 存储容量:8Mb （1M x 8，512K x 16） 写周期时间 - 字，页:200μs 访问时间:70ns 存储器接口:并联 电压 - 电源:2.65 V ~ 3.6 V 工作温度:-40°C ~ 85°C（TC） 安装类型:表面贴装 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商器件封装:48-TSOP 基本零件编号:AT49BV802 标准包装:1,000 |
| AT49BV802A-70TU | 功能描述:闪存 8M TOP BOOT-PKG- 8M BTTM BOOT RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AT49BV802A-70TU SL383 | 功能描述:IC FLASH 8MBIT 70NS 48TSOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
| AT49BV802A-70TU-T | 功能描述:IC FLASH 8MBIT 70NS 48TSOP 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 存储器类型:非易失 存储器格式:闪存 技术:FLASH 存储容量:8Mb （1M x 8，512K x 16） 写周期时间 - 字，页:200μs 访问时间:70ns 存储器接口:并联 电压 - 电源:2.65 V ~ 3.6 V 工作温度:-40°C ~ 85°C（TC） 安装类型:表面贴装 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商器件封装:48-TSOP 基本零件编号:AT49BV802 标准包装:1,000 |
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