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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM50DL9608GT70IS датащи(PDF) 3 Page - SPANSION |
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AM50DL9608GT70IS датащи(HTML) 3 Page - SPANSION |
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3 / 70 page  2 Am50DL9608G May 19, 2003 P R E L I M I NARY GENERAL DESCRIPTION The Am50DL9608G consists of two flash memory de- vices (one 64-Mbit Am29DL640G and one 32-Mbit Am29DL320G), and one 8 Mbit pseudo SRAM device. Am29DL640G and Am29DL320G Features Am29DL640G is a 64 megabit, 3.0 volt-only flash memory device, organized as 4,194,304 words. The Am29DL320G is a 32 megabit, 3.0 volt-only flash memory device, organized as 2,097,152 words. Word mode data appears on DQ15–DQ0. The device is de- signed to be programmed in-system with the standard 3.0 volt V CC supply, and can also be programmed in standard EPROM programmers. The device is available with an access time of 70 or 85 ns and is offered in a 73-ball FBGA package. Standard control pins—chip enable (CE#fx), write enable (WE#), and output enable (OE#)—control normal read and write operations, and avoid bus contention issues. The device requires only a single 3.0 volt power sup- ply for both read and write functions. Internally gener- ated and regulated voltages are provided for the program and erase operations. Simultaneous Read/Write Operations with Zero Latency The Simultaneous Read/Write architecture provides simultaneous operation by dividing the memory space into four banks. Sector addresses are fixed, system software can be used to form user-defined bank groups. During an Erase/Program operation, any of the three non-busy banks may be read from. Note that only two banks can operate simultaneously. The device can im- prove overall system performance by allowing a host sy stem to prog ram or erase in one bank, then immediately and simultaneously read from the other bank, with zero latency. This releases the system from waiting for the completion of program or erase operations. The Am29DL640G can be organized as both a top and bottom boot sector configuration. The Am29DL320G can be organized as either a top or bottom boot sector configuration. Top boot configura- tion is shown in the following table. Bottom boot configuration is shown in the following ta- ble. Available on Am29DL640G and Am29DL320G, the SecSi™ (Secured Silicon) Sector is an extra 256 byte sector capable of being permanently locked by AMD or customers. The Secure SectorSecSi Indica- tor Bit (DQ7) is permanently set to a 1 if the part is factory locked, and set to a 0 if customer lockable. This way, customer lockable parts can never be used to replace a factory locked part. Factory locked parts provide several options. The Se- cure SectorSecSi Sector may store a secure, random 16 byte ESN (Electronic Serial Number), customer code (programmed through AMD’s ExpressFlash ser- vice), or both. Customer Lockable parts may utilize the Secure SectorSecSi Sector as a one-time program- mable area. The AMD DMS (Data Management Software) man- ages data programming, enables EEPROM emulation, and eases historical sector erase flash limitations. For more information on DMS or to obtain the software, contact AMD or an authorized representative. The device offers complete compatibility with the JEDEC single-power-supply Flash command set standard. Commands are written to the command register using standard microprocessor write timings. Reading data out of the device is similar to reading from other Flash or EPROM devices. The host system can detect whether a program or erase operation is complete by using the device sta- tus bits: RY/BY# pin, DQ7 (Data# Polling) and DQ6/DQ2 (toggle bits). After a program or erase cycle has been completed, the device automatically returns to the read mode. The sector erase architecture allows memory sec- tors to be erased and reprogrammed without affecting the data contents of other sectors. The device is fully erased when shipped from the factory. Hardware data protection measures include a low V CC detector that automatically inhibits write opera- tions during power transitions. The hardware sector protection feature disables both program and erase operations in any combination of the sectors of mem- ory. This can be achieved in-system or via program- ming equipment. The device offers two power-saving features. When addresses have been stable for a specified amount of time, the device enters the automatic sleep mode. Th e system ca n a lso pla ce th e d evice in to th e standby mode. Power consumption is greatly re- duced in both modes. Bank Megabits Sector Sizes Bank 1 8 Mb Eight 4 Kword, Fifteen 32 Kword Bank 2 24 Mb Forty-eight 32 Kword Bank 3 24 Mb Forty-eight 32 Kword Bank 4 8 Mb Eight 4 Kword, Fifteen 32 Kword Bank Megabits Sector Sizes Bank 1 4 Mb Eight 4 Kword, Seven 32 Kword Bank 2 12 Mb Twenty-four 32 Kword Bank 3 12 Mb Twenty-four 32 Kword Bank 4 4 Mb Eight 32 Kword Bank Megabits Sector Sizes Bank 1 4 Mb Eight 32 Kword Bank 2 12 Mb Twenty-four 32 Kword Bank 3 12 Mb Twenty-four 32 Kword Bank 4 4 Mb Eight 4 Kword, Seven 32 Kword |
Аналогичный номер детали - AM50DL9608GT70IS |
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Аналогичное описание - AM50DL9608GT70IS |
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