参数资料
型号: MCF51MM256CLK
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 50.33 MHz, MICROCONTROLLER, PQFP80
封装: 12 X 12 MM, ROHS COMPLIANT, LQFP-80
文件页数: 33/58页
文件大小: 609K
代理商: MCF51MM256CLK
Electrical Characteristics
Freescale Semiconductor
39
o
3.11
Mini-FlexBus Timing 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 25.1666 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.
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.
6
Crystal start-up time 4
Low range, low gain (RANGE =
0, HGO = 0)
t
CSTL-LP
200
ms
D
Low range, high gain
(RANGE = 0, HGO = 1)
t
CSTL-HG
O
—400
D
High range, low gain
(RANGE = 1, HGO = 0)5
tCSTH-LP
—5
D
High range, high gain
(RANGE = 1, HGO = 1)5
tCSTH-HG
O
—15
D
1
Data in Typical column was characterized at 3.0 V, 25
C or is typical recommended value.
2
When MCG is configured for FEE or FBE mode, input clock source must be divisible using RDIV to within the range of 31.25 kHz to 39.0625 kHz.
3
When MCG is configured for PEE or PBE mode, input clock source must be divisible using RDIV to within the range of 1 MHz to 2 MHz.
4
This parameter is characterized and not tested on each device. Proper PC board layout porcedures must be followed to achieve specifications.
5
4 MHz crystal.
Table 19. XOSC (Temperature Range = –40 to 105°C Ambient) (continued)
#
Characteristic
Symbol
Min
Typ1
Max
Unit
C
MCU
EXTAL
XTAL
RS
C2
Crystal or Resonator
RF
C1
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
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相关代理商/技术参数
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MCF51MM256CLL 功能描述:32位微控制器 - MCU 32BIT 256K FLASH 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
MCF51MM256CMB 功能描述:32位微控制器 - MCU 32BIT 256K FLASH 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
MCF51MM256CML 功能描述:32位微控制器 - MCU 32BIT 256K FLASH 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
MCF51MM256VLK 功能描述:32位微控制器 - MCU 32BIT 256K FLASH 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
MCF51MM256VLL 功能描述:32位微控制器 - MCU 32BIT 256K FLASH 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