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AT49BV320C-70CI Datasheet

  • AT49BV320C-70CI

  • ATMEL Corporation [32-megabit (2M x 16) 3-volt Only Flash M...

  • ATMEL   ATMEL

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CLEAR STATUS REGISTER:
The WSM can set status register bits 1 through 7 and can clear
bits 2, 6 and 7; but, the WSM cannot clear status register bits 1, 3, 4 or 5. Because bits 1, 3, 4
and 5 indicate various error conditions, these bits can be cleared only through the Clear Status
Register command. By allowing the system software to control the resetting of these bits, sev-
eral operations may be performed (such as cumulatively programming several addresses or
erasing multiple sectors in sequence) before reading the status register to determine if an
error occurred during those operations. The status register should be cleared before beginning
another operation. The Read command must be issued before data can be read from the
memory array. The status register can also be cleared by resetting the device.
FLEXIBLE SECTOR PROTECTION:
The AT49BV320C(T) offers two sector protection
modes, the Softlock and the Hardlock. The Softlock mode is optimized as sector protection for
sectors whose content changes frequently. The Hardlock protection mode is recommended
for sectors whose content changes infrequently. Once either of these two modes is enabled,
the contents of the selected sector is read-only and cannot be erased or programmed. Each
sector can be independently programmed for either the Softlock or Hardlock sector protection
mode. At power-up and reset, all sectors have their Softlock protection mode enabled.
SOFTLOCK AND UNLOCK:
The Softlock protection mode can be disabled by issuing a two-
bus cycle Unlock command to the selected sector. Once a sector is unlocked, its contents can
be erased or programmed. To enable the Softlock protection mode, a two-bus cycle Softlock
command must be issued to the selected sector.
HARDLOCK AND WRITE PROTECT:
The Hardlock sector protection mode operates in con-
junction with the Write Protect (WP) pin. The Hardlock sector protection mode can be enabled
by issuing a two-bus cycle Hardlock Software command to the selected sector. The state of
the Write Protect pin affects whether the Hardlock protection mode can be overridden.
鈥?/div>
鈥?/div>
When the WP pin is low and the Hardlock protection mode is enabled, the sector cannot
be unlocked and the contents of the sector is read-only.
When the WP pin is high, the Hardlock protection mode is overridden and the sector can
be unlocked via the Unlock command.
To disable the Hardlock sector protection mode, the chip must be either reset or power cycled.
6
AT49BV320C(T)
3372D鈥揊LASH鈥?/04

AT49BV320C-70CI 產(chǎn)品屬性

  • 276

  • 集成電路 (IC)

  • 存儲器

  • -

  • 閃存

  • FLASH

  • 32M（2M x 16）

  • 70ns

  • 并聯(lián)

  • 2.65 V ~ 3.6 V

  • -40°C ~ 85°C

  • 47-CBGA

  • 47-CBGA（7x10）

  • 托盤

AT49BV320C-70CI相關(guān)型號PDF文件下載

  • 型號
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    廠商
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  • 英文版
    PROTECTIVE GUARD KB SER SQ&RND
  • 英文版
    COVER DUST POLY FOR KB SERIES
  • 英文版
    CENTER BARRIER BLACK POLY LB SER
  • 英文版
    PROTECTIVE GUARD FOR LB SER SQ
  • 英文版
    Round Pushbutton Switch Cap Black Slip On
  • 英文版
    Round Pushbutton Switch Cap Red Slip On
  • 英文版
    128K x 8 (1M bit), 2.7-Volt (BV)/3-Volt (LV) Read and 2.7-Vo...
  • 英文版
    1-Megabit 128K x 8 5-volt Only Flash Memory
    ATMEL
  • 英文版
    1-Megabit 128K x 8 5-volt Only Flash Memory
    ATMEL [ATM...
  • 英文版
    2-Megabit 256K x 8 5-volt Only Flash Memory
    ATMEL
  • 英文版
    2-megabit (256K x 8) 5-volt Only Flash Memory
    ATMEL [ATM...
  • 英文版
    2-Megabit 256K x 8 5-volt Only Flash Memory
    ATMEL [ATM...
  • 英文版
    4-Megabit CMOS Flash Memory
    ETC
  • 英文版
    ATMEL Corporation [4-Megabit 512K x 8/ 256K x 16 CMOS Flash...
    ATMEL
  • 英文版
    8-Megabit 5-volt Only Flash Memory
    ETC
  • 英文版
    8-Megabit 1M x 8 5-volt Only Flash Memory
    ATMEL
  • 英文版
    ATMEL Corporation [1-Megabit 128K x 8 5-volt Only CMOS Flas...
    ATMEL
  • 英文版
    ATMEL Corporation [2-Megabit 256K x 8 5-volt Only CMOS Flas...
    ATMEL
  • 英文版
    4 Megabit 512K x 8 5-volt Only CMOS Flash Memory
    ATMEL
  • 英文版
    4-Megabit 512K x 8 5-volt Only CMOS Flash Memory
    ATMEL [ATM...

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