参数资料
型号: MCF5208CVM166
厂商: Freescale Semiconductor
文件页数: 19/46页
文件大小: 0K
描述: IC MCU 32-BIT 196-MAPBGA
标准包装: 126
系列: MCF520x
核心处理器: Coldfire V2
芯体尺寸: 32-位
速度: 166.67MHz
连通性: EBI/EMI,以太网,I²C,SPI,UART/USART
外围设备: DMA,WDT
输入/输出数: 50
程序存储器类型: ROMless
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 1.4 V ~ 3.6 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 196-LBGA
包装: 托盘
MCF5208 ColdFire Microprocessor Data Sheet, Rev. 3
Electrical Characteristics
Freescale Semiconductor
26
All other timing relationships can be derived from these values. Timings
listed in Table 11 are shown in Figure 14 and Figure 15.
Figure 13. General Input Timing Requirements
5.7.1
FlexBus
FlexBus is a multi-function external bus interface provided to interface to slave-only devices up to a
maximum bus frequency of 83.33 MHz. It can be directly connected to asynchronous or synchronous
devices such as external boot ROMs, flash memories, gate-array logic, or other simple target (slave)
devices with little or no additional circuitry. For asynchronous devices, a simple chip-select based interface
can be used. The FlexBus interface has six general purpose chip-selects (FB_CS[5:0]) that can be
configured to be distributed between the FlexBus or SDRAM memory interfaces. Chip-select FB_CS[0]
can be dedicated to boot ROM access and can be programmed to be byte (8 bits), word (16 bits), or
longword (32 bits) wide. Control signal timing is compatible with common ROM/flash memories.
Invalid
FB_CLK(75MHz)
TSETUP
THOLD
Input Setup And Hold
1.5V
trise
Vh = VIH
Vl = VIL
1.5V
1.5V Valid
tfall
Vh = VIH
Vl = VIL
Input Rise Time
Input Fall Time
* The timings are also valid for inputs sampled on the negative clock edge.
Inputs
FB_CLK
FB4
FB5
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