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參數(shù)資料
| 型號： | MCF52252AF80 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, ROHS COMPLIANT, LQFP-100 |
| 文件頁數(shù)： | 26/46頁 |
| 文件大?。?/td> | 560K |
| 代理商： | MCF52252AF80 |
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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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| MCF5232CAB80 | 32-BIT, 80 MHz, RISC PROCESSOR, PQFP160 |
| MCF5232CVM100 | 32-BIT, 100 MHz, RISC PROCESSOR, PBGA196 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCF52252AF80 | 制造商:Freescale Semiconductor 功能描述:32-bit Microcontroller IC |
| MCF52252CAF66 | 功能描述:32位微控制器 - MCU KIRIN3 COLDFIRE V2 RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| MCF52252CAF66 | 制造商:Freescale Semiconductor 功能描述:IC 32BIT MCU COLDFIRE/68K 66MHZ LQFP-100 |
| MCF52254AF80 | 功能描述:32位微控制器 - MCU KIRIN3 COLDFIRE V2 RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| MCF52254AF80 | 制造商:Freescale Semiconductor 功能描述:IC 32BIT MCU COLDFIRE/68K 80MHZ LQFP-100 |
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