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参数资料
| 型号： | STR912FAW46X6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 96 MHz, RISC MICROCONTROLLER, PQFP128 |
| 封装： | 14 X 14 MM, 0.40 MM PITCH, ROHS COMPLIANT, PLASTIC, LQFP-128 |
| 文件页数： | 34/101页 |
| 文件大小： | 1922K |
| 代理商： | STR912FAW46X6 |
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Functional overview
STR91xFAxxx
high data bytes respectively. The output signal EMI_RDn is the read strobe for both the
low and high data bytes.
●
8-bit multiplexed data mode: This is a variant of the 16-bit multiplexed mode.
Although this mode can provide 24 bits of address and 8 bits of data, it does require an
external latch device on Port 8. However, this mode is most efficient when connecting
devices that only require 8 bits of address on an 8-bit multiplexed address/data bus,
and have simple read, write, and latch inputs as shown in Figure 5
To use all 24 address bits, the following applies: 8 bits of lowest-order data and 8 bits of
lowest-order address are multiplexed on port 8. On port 9, 8-bits of mid-order address are
multiplexed with 8 bits of data, but these 8 data values are always at logic zero on this port
during a write operation, and these 8 data bits are ignored during a read operation. An
external latch device is needed to de-multiplex the mid-order 8 address bits that are
generated on port 8. Port 7 outputs the 8 highest-order address signals directly (not
multiplexed). The output signal on pin EMI_ALE is used to demultiplex the signals on ports 8
and 9, and the polarity of EMI_ALE is programmable. The output signal on pin
EMI_BWR_WRLn is the data write strobe, and the output on pin EMI_RDn is the data read
strobe.
●
8-bit non-multiplexed data mode (Figure 6): Eight bits of data are on port 8, while 16
bits of address are output on ports 7 and 9. The output signal on pin EMI_BWR_BWLn
is the data write strobe and the output on pin EMI_RDn is the data read strobe.
●
Burst Mode Support (LFBGA package only): The EMI bus supports synchronized
burst read and write bus cycle in multiplexed and non-multiplexed mode. The additional
EMI signals in the LFBGA package that support the burst mode are:
–
EMI_BCLK -the bus clock output. The EMI_BCLK has the same frequency or half
of that of the HCLK and can be disabled by the user
–
EMI_WAITn - the not ready or wait input signal for synchronous access
–
EMI_BAAn - burst address advance or burst enable signal
–
EMI_WEn - write enable signal
–
EMI_UBn, EMI_LBn - upper byte and lower byte enable signals. These two signals
share the same pins as the EMI_WRLn and EMI_WRHn and are user configurable
through the EMI register.
By defining the bus parameters such as burst length, burst type, read and write timings
in the EMI control registers, the EMI bus is able to interface to standard burst memory
devices. The burst timing specification and waveform will be provided in the next data
sheet release
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相关代理商/技术参数 |
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| STR912FAW46X6T | 功能描述:ARM微控制器 - MCU ARM966 MCU 16/32-bit Ethernet RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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| STR912FAW47X6 | 功能描述:ARM微控制器 - MCU ARM966E-S 16 Bit MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STR912FAW47X6T | 功能描述:ARM微控制器 - MCU 16 Bit Flash MCU MCU Eth/Can/USB RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STR912FAZ32H6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
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