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| KSZ8995MA资料 | |
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KSZ8995MA PDF Download |
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File Size : 116 KB
Manufacturer:MICREL Description: The ST92F124/F150/F250 microcontroller is de- veloped and manufactured by STMicroelectronics using a proprietary n-well HCMOS process. Its performance derives from the use of a flexible 256-register programming model for ultra-fast con- text switching and real-time event response. The intelligent on-chip peripherals offload the ST9 core from I/O and data management processing tasks allowing critical application tasks to get the maxi- mum use of core resources. The new-generation ST9 MCU devices now also support low power consumption and low voltage operation for power- efficient and low-cost embedded systems. 1.1.1 ST9+ Core The advanced Core consists of the Central Processing Unit (CPU), the Register File, the Inter- rupt and DMA controller, and the Memory Man- agement Unit. The MMU allows a single linear ad- dress space of up to 4 Mbytes. Four independent buses are controlled by the Core: a 22-bit memory bus, an 8-bit register data bus, an 8-bit register address bus and a 6-bit inter- rupt/DMA bus which connects the interrupt and DMA controllers in the on-chip peripherals with the core. This multiple bus architecture makes the ST9 fam- ily devices highly efficient for accessing on and off- chip memory and fast exchange of data with the on-chip peripherals. The general-purpose registers can be used as ac- cumulators, index registers, or address pointers. Adjacent register pairs make up 16-bit registers for addressing or 16-bit processing. Although the ST9 has an 8-bit ALU, the chip handles 16-bit opera- tions, including arithmetic, loads/stores, and mem- ory/register and memory/memory exchanges. The powerful I/O capabilities demanded by micro- controller applications are fulfilled by the ST92F150/F124 with 48 (64-pin devices) or 77 (100-pin devices) I/O lines dedicated to digital In- put/Output and with 80 I/O lines by the ST92F250. These lines are grouped into up to ten 8-bit I/O Ports and can be configured on a bit basis under software control to provide timing, status signals, an address/data bus for interfacing to the external memory, timer inputs and outputs, analog inputs, external interrupts and serial or parallel I/O. Two memory spaces are available to support this wide range of configurations: a combined Program/ Data Memory Space and the internal Register File, |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：KSZ8995MA 厂 家：MICREL 封 装： 批 号：0628 数 量：100 说 明：Bid Price |
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运 费： 所在地： 新旧程度： |
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| 联系人：刘先生，罗小姐，刘小姐，刘先生，王先生 |
| 电 话：0086-755-83576094,83576097,83576087,83576084,83979425 |
| 手 机：0086-(0)13728684091 |
| QQ：2355773149,2355773142,61991728 |
| MSN：franlmk168@live.cn |
| 传 真：86-755-83576061 |
| EMail：sales@xgf-ic.com, kupan_ic@126.com |
| 公司地址： 深圳市龙岗区龙岗街道龙岗大道远洋新干线晶钻广场2栋B座2915房 |
