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参数资料
| 型号： | AT49SV12804 |
| 厂商： | Atmel Corp. |
| 英文描述： | 128-megabit (8M x 16) Burst/Page Mode 1.8-volt Flash Memory |
| 中文描述： | 128兆位（8米× 16）突发/页模式1.8伏的快闪记忆体 |
| 文件页数： | 11/41页 |
| 文件大小： | 397K |
| 代理商： | AT49SV12804 |
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11
AT49SN/SV12804 [Preliminary]
3314A–FLASH–4/04
ERASE SUSPEND/ERASE RESUME:
The Erase Suspend command allows the system to
interrupt a sector erase or plane erase operation. The erase suspend command does not work
with the Chip Erase feature. Using the erase suspend command to suspend a sector erase
operation, the system can program or read data from a different sector within the same plane.
Since this device is organized into thirty-two planes, there is no need to use the erase suspend
feature while erasing a sector when you want to read data from a sector in another plane. After
the Erase Suspend command is given, the device requires a maximum time of 15 μs to sus-
pend the erase operation. After the erase operation has been suspended, the plane that
contains the suspended sector enters the erase-suspend-read mode. 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, which does require
the plane address. Read, Read Status Register, Product ID Entry, Clear Status Register, Pro-
gram, Program Suspend, Erase Resume, Sector Softlock/Hardlock, Sector Unlock are valid
commands during an erase suspend.
PROGRAM SUSPEND/PROGRAM RESUME:
The Program Suspend command allows the
system to interrupt a programming operation and then read data from a different word within
the memory. After the Program Suspend command is given, the device requires a maximum
of 10 μs to suspend the programming operation. After the programming operation has been
suspended, the system can then read from any other word within the device. 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. Read, Read Status Register, Product ID Entry, Program Resume are valid com-
mands during a Program Suspend.
128-BIT PROTECTION REGISTERS:
The AT49SN/SV12804 contains seventeen (PR0 -
PR16) 128-bit registers that can be used for security purposes in system design. Please see
the Protection Register Addressing Table on page 19 for the address locations within each
protection register. The first protection register (PR0) 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 reprogrammed. The other 16
registers (PR1 - PR16) have 128 bits (16 words) each that are all user programmable. To pro-
gram block B in PR0 or to program PR1 - PR16 register, a two-bus cycle command must be
used as shown in the Command Definition table on page 18. To lock out block B in PRO or to
lock out PR1 - PR16, a two-bus cycle command must also be used as shown in the Command
Definition table. To lock out block B in PRO, the address used in the second bus cycle is 080h
and data bit D1 must be zero during the second bus cycle. All other data bits during the sec-
ond bus cycle are don’t cares. To lock out PR1 - PR16, the address used in the second bus
cycle is 089h and sixteen bits of data are programmed. If any of these bits is programmed to a
zero, the appropriate register is locked. After being locked, the protection register cannot be
unlocked. To determine whether block B in PRO or PR1 - PR16 is locked out, the Product ID
Entry command is given followed by a read operation from address 80H or address 89H,
respectively. (This command is shown as status of protection in the Command Definition
table). For block B in PRO, if data bit D1 is zero, block B is locked. If data bit D1 is one, block B
can be reprogrammed. For PR1 - PR16, sixteen bits of data are read out. Each bit represents
the protection status of a particular register. If the bit is a zero, the register is locked. If the bit
is a one, the register can be reprogrammed. To read a 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 a register is protected or not or reading the protection reg-
ister, the Read command must be given to return to the read mode.
相关PDF资料 |
PDF描述 |
|---|---|
| AT49SV12804-70TI | 128-megabit (8M x 16) Burst/Page Mode 1.8-volt Flash Memory |
| AT49SN6416-70CI | 64-megabit (4M x 16) Burst/Page Mode 1.8-volt Flash Memory |
| AT49SN6416T | 64-megabit (4M x 16) Burst/Page Mode 1.8-volt Flash Memory |
| AT49SN6416T-70CI | 64-megabit (4M x 16) Burst/Page Mode 1.8-volt Flash Memory |
| AT49SN6416 | 64-megabit (4M x 16) Burst/Page Mode 1.8-volt Flash Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT49SV163D-80CU | 功能描述:闪存 Parallel 闪存 1.8V 80NS 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 |
| AT49SV163D-80TU | 功能描述:闪存 Parallel 闪存 1.8V 80NS 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 |
| AT49SV163DT-80CU | 功能描述:闪存 Parallel 闪存 1.8V 80NS, GR 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 |
| AT49SV163DT-80TU | 功能描述:闪存 Parallel 闪存 1.8V 80NS, GR 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 |
| AT49SV322A-80CU | 制造商:Atmel Corporation 功能描述:Flash Parallel 1.8V 32Mbit 4M/2M x 8bit/16bit 80ns 48-Pin CBGA |
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