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参数资料
| 型号： | MBM29F017A-90PFTN |
| 厂商： | SPANSION LLC |
| 元件分类： | PROM |
| 英文描述： | 2M X 8 FLASH 5V PROM, 90 ns, PDSO48 |
| 封装： | PLASTIC, TSOP1-48 |
| 文件页数： | 23/49页 |
| 文件大小： | 520K |
| 代理商： | MBM29F017A-90PFTN |
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MBM29F017A-70/-90/-12
2
(Continued)
The MBM29F017A is command set compatible with JEDEC standard single-supply Flash standard. Commands
are written to the command register using standard microprocessor write timings. Register contents serve as
input to an internal state-machine which controls the erase and programming circuitry. Write cycles also internally
latch addresses and data needed for the programming and erase operations. Reading data out of the device is
similar to reading from 12.0 V Flash or EPROM devices.
The MBM29F017A is programmed by executing the program command sequence. This will invoke the Embedded
ProgramTM Algorithm which is an internal algorithm that automatically times the program pulse widths and verifies
proper cell margin. Each sector can be programmed and verified in less than 0.5 seconds. Erase is accomplished
by executing the erase command sequence. This will invoke the Embedded EraseTM Algorithm which is an
internal algorithm that automatically preprograms the array if it is not already programmed before executing the
erase operation. During erase, the device automatically times the erase pulse widths and verifies proper cell
margin.
This device also features a sector erase architecture. The sector erase mode allows for sectors of memory to
be erased and reprogrammed without affecting other sectors. A sector is typically erased and verified within one
second (if already completely preprogrammed). The MBM29F017A is erased when shipped from the factory.
The MBM29F017A device also features hardware sector group protection. This feature will disable both program
and erase operations in any combination of eight sector groups of memory.
A sector group consists of four
adjacent sectors grouped in the following pattern: sectors 0-3, 4-7, 8-11, 12-15, 16-19, 20-23, 24-27, and 28-31.
Fujitsu has implemented an Erase Suspend feature that enables the user to put erase on hold for any period of
time to read data from or program data to a non-busy sector. Thus, true background erase can be achieved.
The device features single 5.0 V power supply operation for both read and program functions. Internally generated
and regulated voltages are provided for the program and erase operations. A low VCC detector automatically
inhibits write operations during power transitions. The end of program or erase is detected by Data Polling of
DQ7, or by the Toggle Bit I feature on DQ6 or RY/BY output pin. Once the end of a program or erase cycle has
been completed, the device automatically resets to the read mode.
The MBM29F017A also has a hardware RESET pin. When this pin is driven low, execution of any Embedded
Program or Embedded Erase operations will be terminated. The internal state machine will then be reset into
the read mode. The RESET pin may be tied to the system reset circuity. Therefore, if a system reset occurs
during the Embedded Program or Embedded Erase operation, the device will be automatically reset to a read
mode. This will enable the system microprocessor to read the boot-up firmware from the Flash memory.
Fujitsu's Flash technology combines years of EPROM and E2PROM experience to produce the highest levels
of quality, reliability, and cost effectiveness. The MBM29F017A memory electrically erases all bits within a sector
simultaneously via Fowler-Nordheim tunneling. The bytes are programmed one byte at a time using the EPROM
programming mechanism of hot electron injection.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MBM29F017A-90PFTR | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16M (2M X 8) BIT |
| MBM29F017A-90PNS | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16M (2M X 8) BIT |
| MBM29F033C | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:32M (4M X 8) BIT |
| MBM29F033C-12 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:32M (4M X 8) BIT |
| MBM29F033C-12PTN | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:32M (4M X 8) BIT |
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