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TDA12020H1/N1D11

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File Size : 116 KB Manufacturer:PHI Description:SUMMARY DESCRIPTION The M28R400C is a 4 Mbit (256Kbit x 16) non-vol- atile Flash memory that can be erased electrically at the block level and programmed in-system on a Word-by-Word basis. These operations can be performed using a single low voltage (1.65 to 2.2V) supply. V DDQ allows to drive the I/O pin down to 1.65V. An optional 12V V PP power supply is provided to speed up customer programming. The device features an asymmetrical blocked ar- chitecture. The M28R400C has an array of 15 blocks: 8 Parameter Blocks of 4 KWord and 7 Main Blocks of 32 KWord. M28R400CT has the Parameter Blocks at the top of the memory ad- dress space while the M28R400CB locates the Parameter Blocks starting from the bottom. The memory maps are shown in Figure 4, Block Ad- dresses. The M28R400C features an instant, individual block locking scheme that allows any block to be locked or unlocked with no latency, enabling in- stant code and data protection. All blocks have three levels of protection. They can be locked and locked-down individually preventing any acciden- tal programming or erasure. There is an additional hardware protection against program and block erase. When VPP VPPLK all blocks are protected against program or block erase. All blocks are locked at power-up. Each block can be erased separately. Erase can be suspended in order to perform either read or program in any other block and then resumed. Program can be suspended to read data in any other block and then resumed. Each block can be programmed and erased over 100,000 cycles. The device includes a 128 bit Protection Register and a Security Block to increase the protection of a system design. The Protection Register is divid- ed into two 64 bit segments, the first one contains a unique device number written by ST, while the second one is one-time-programmable by the us- er. The user programmable segment can be per- manently protected. The Security Block, parameter block 0, can be permanently protected by the user. Figure 5, shows the Security Block Memory Map. Program and Erase commands are written to the Command Interface of the memory. An on-chip Program/Erase Controller takes care of the tim- ings necessary for program and erase operations. The end of a program or erase operation can be detected and any error conditions identified. The command set required to control the memory is consistent with JEDEC standards.


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	1PCS	100PCS	1K	10K
价格


型号：TDA12020H1/N1D11 厂家：PHI 封装：QFP 批号：05+ 数量：16 说明：现货库存,特价热卖


运费：运费到付10.00元（快递）20.00元（顺风）所在地：深圳新旧程度：