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參數(shù)資料
| 型號： | AT45DB321B-TC |
| 廠商： | ATMEL CORP |
| 元件分類： | DRAM |
| 英文描述： | 32-megabit 2.7-volt Only DataFlash |
| 中文描述： | 32M X 1 FLASH 2.7V PROM, PDSO32 |
| 封裝： | 8 X 20 MM, PLASTIC, MO-142BD, TSOP1-32 |
| 文件頁數(shù)： | 9/32頁 |
| 文件大小： | 230K |
| 代理商： | AT45DB321B-TC |
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AT45DB321B
2223D–DFLASH–10/02
WRITE PROTECT:
If the WP pin is held low, the first 256 pages of the main memory
cannot be reprogrammed. The only way to reprogram the first 256 pages is to first drive
the protect pin high and then use the program commands previously mentioned. The
WP pin is internally pulled high; therefore, connection of the WP pin is not necessary if
this pin and feature will not be utilized. However, it is recommended that the WP pin be
driven high externally whenever possible.
RESET:
A low state on the reset pin (RESET) will terminate the operation in progress
and reset the internal state machine to an idle state. The device will remain in the reset
condition as long as a low level is present on the RESET pin. Normal operation can
resume once the RESET pin is brought back to a high level.
The device incorporates an internal power-on reset circuit, so there are no restrictions
on the RESET pin during power-on sequences. The RESET pin is also internally pulled
high; therefore, connection of the RESET pin is not necessary if this pin and feature will
not be utilized. However, it is recommended that the RESET pin be driven high exter-
nally whenever possible.
READY/BUSY:
This open drain output pin will be driven low when the device is busy in
an internally self-timed operation. This pin, which is normally in a high state (through
a 1 k external pull-up resistor), will be pulled low during programming operations, com-
pare operations, and during page-to-buffer transfers.
The busy status indicates that the Flash memory array and one of the buffers cannot be
accessed; read and write operations to the other buffer can still be performed.
Power-on/Reset State
When power is first applied to the device, or when recovering from a reset condition, the
device will default to SPI Mode 3. In addition, the SO pin will be in a high-impedance
state, and a high-to-low transition on the CS pin will be required to start a valid instruc-
tion. The SPI mode will be automatically selected on every falling edge of CS by
sampling the inactive clock state.
相關(guān)PDF資料 |
PDF描述 |
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| AT45DB321B-TI | 32-megabit 2.7-volt Only DataFlash |
| AT45DB321C-CC | 32 MEGABIT 2.7 VOLT DATAFLASH |
| AT45DB321C-CI | 32 MEGABIT 2.7 VOLT DATAFLASH |
| AT45DB321C-CNC | 32 MEGABIT 2.7 VOLT DATAFLASH |
| AT45DB321C-RC | DIODE/SM,REC*1A*60V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT45DB321B-TI | 功能描述:IC FLASH 32MBIT 20MHZ 32TSOP RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標(biāo)準(zhǔn)包裝:32 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:1M (128K x 8) 速度:120ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:32-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:32-PLCC 包裝:管件 其它名稱:AT49BV00112JC |
| AT45DB321C | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:32 MEGABIT 2.7 VOLT DATAFLASH |
| AT45DB321C_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:32-megabit 2.7 volt DataFlash |
| AT45DB321-CC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:32-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB321C-CC | 功能描述:IC FLASH 32MBIT 40MHZ 24CBGA RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲器:RAM 存儲器類型:SDRAM 存儲容量:256M（8Mx32） 速度:143MHz 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA（8x13） 包裝:托盤 其它名稱:Q2841869 |
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