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| 型號： | TWR-MCF51JE |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 26/47頁 |
| 文件大?。?/td> | 0K |
| 描述： | TOWER SYSTEM BOARD MCF51JE |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ColdFire®, Flexis™ |
| 類型： | MCU |
| 適用于相關(guān)產(chǎn)品： | Freescale 電源塔系統(tǒng)，MCF51JE |
| 所含物品： | 板 |
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MCF51JE256 Datasheet, Rev. 4
Preliminary Electrical Characteristics
Freescale Semiconductor
32
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.
Table 19. Mini-FlexBus AC Timing Specifications
#
Characteristic
Symbol
Min
Max
Unit
C
1
Frequency of Operation
—
25.1666
MHz
—
2
Clock Period
MB1
39.73
—
ns
D
3
Output Valid1
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.
MB2
—
20
ns
T
4
Output Hold1
MB3
1.0
—
ns
D
5
Input Setup2
2
Specification is valid for all MB_D[7:0].
MB4
22
—
ns
T
6
Input Hold2
MB5
10
—
ns
D
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TWR-MCF51-JE-KIT | 制造商:Freescale Semiconductor 功能描述:KIT DEV TOWER MCF51JE 制造商:Freescale Semiconductor 功能描述:TOWER SYS KIT, MCF51JE, TWR-SER/ELEV |
| TWR-MCF51JE-KIT | 功能描述:開發(fā)板和工具包 - COLDFIRE KIT MCU Bd Fsl Tower RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Kits 工具用于評估:MCF53017 核心:ColdFire V3 接口類型:Ethernet, UART, USB 工作電源電壓:12 V |
| TWR-MCF51JF | 功能描述:開發(fā)板和工具包 - COLDFIRE MCF51QM Tower Module RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Kits 工具用于評估:MCF53017 核心:ColdFire V3 接口類型:Ethernet, UART, USB 工作電源電壓:12 V |
| TWR-MCF51JF-KIT | 功能描述:開發(fā)板和工具包 - COLDFIRE MCF51JF Tower Kit RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Kits 工具用于評估:MCF53017 核心:ColdFire V3 接口類型:Ethernet, UART, USB 工作電源電壓:12 V |
| TWR-MCF51JG | 制造商:Freescale Semiconductor 功能描述:TWR-MCF51JG - Boxed Product (Development Kits) 制造商:Freescale Semiconductor 功能描述:MOD TOWER SYSTEM MCF51JX |
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