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参数资料
| 型号： | MCF52256CAG66 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQFP144 |
| 封装： | 20 X 20 MM, ROHS COMPLIANT, LQFP-144 |
| 文件页数： | 26/46页 |
| 文件大小： | 560K |
| 代理商： | MCF52256CAG66 |
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Electrical Characteristics
MCF52259 ColdFire Microcontroller, Rev. 4
Freescale Semiconductor
32
2.9
USB Operation
2.10
Mini-FlexBus External Interface Specifications
A multi-function external bus interface called Mini-FlexBus is provided with basic functionality to interface to slave-only
devices up to a maximum bus frequency of 80MHz. 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.
All processor bus timings are synchronous; that is, input setup/hold and output delay are given in respect to the rising edge of
a reference clock, MB_CLK. The MB_CLK frequency is half the internal system bus frequency.
The following timing numbers indicate when data is latched or driven onto the external bus, relative to the Mini-FlexBus output
clock (MB_CLK). All other timing relationships can be derived from these values.
Table 15. USB Operation Specifications
Characteristic
Symbol
Value
Unit
Minimum core speed for USB operation
fsys_USB_min
16
MHz
Table 16. Mini-FlexBus AC Timing Specifications
Num
Characteristic
Min
Max
Unit
Notes
Frequency of Operation
—
80
MHz
MB1
Clock Period
12.5
—
ns
MB2
Output Valid
—
8
ns
1
1 Specification is valid for all MB_A[19:0], MB_D[7:0], MB_CS[1:0], MB_OE, MB_R/W, and MB_ALE.
MB3
Output Hold
2
—
ns
MB4
Input Setup
6
—
ns
2
2 Specification is valid for all MB_D[7:0].
MB5
Input Hold
0
—
ns
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCF52256CAG66 | 制造商:Freescale Semiconductor 功能描述:IC 32BIT MCU COLDFIRE/68K 66MHZ LQFP-144 |
| MCF52256CVN66 | 功能描述:32位微控制器 - MCU KIRN3 144MAPBGA RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| MCF52256CVN66 | 制造商:Freescale Semiconductor 功能描述:32-bit Microcontroller IC |
| MCF52256CVN66J | 制造商:Freescale Semiconductor 功能描述:32-BIT MCF5225X COLDFIRE RISC 256KB FLASH 3.3V 144-PIN MA-B - Bulk |
| MCF52256VN80 | 制造商:Freescale Semiconductor 功能描述:MCU 32BIT V2 RISC 256KB FLASH 3.3V 144MAPBGA - Trays 制造商:Freescale Semiconductor 功能描述:MCU 32BIT COLDFIRE V2 144MAPBGA 制造商:Freescale Semiconductor 功能描述:32-bit Microcontroller IC 制造商:Freescale Semiconductor 功能描述:MCF5225X Series 32 Bit 80 Mhz Microcontroller - MAPBGA-144 |
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