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| 型號： | TWR-MCF51JE |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 28/47頁 |
| 文件大小： | 0K |
| 描述： | TOWER SYSTEM BOARD MCF51JE |
| 標準包裝： | 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
34
3.12
AC Characteristics
This section describes ac timing characteristics for each peripheral system.
3.12.1
Control Timing
Table 20. Control Timing
#
Parameter
Symbol
Minimum
Typica
l1
1
Typical values are based on characterization data at VDD = 5.0 V, 25 C unless otherwise stated.
Maximum
Unit
C
1
Bus frequency (tcyc = 1/fBus)
VDD 1.8 V
fBus
dc
—
10
MHz
D
VDD > 2.1 V
fBus
dc
—
20
MHz
D
VDD > 2.4 V
fBus
dc
—
25.165
MHz
D
2
Internal low-power oscillator period
tLPO
700
1000
1300
s
P
3
External reset pulse width2
2
This is the shortest pulse that is guaranteed to be recognized as a reset pin request. Shorter pulses are not guaranteed to override reset
requests from internal sources.
(tcyc =
1/fSelf_reset)
textrst
100
—
ns
D
4
Reset low drive
trstdrv
66 x tcyc
——
ns
D
5
Active background debug mode
latch setup time
tMSSU
500
—
ns
D
6
Active background debug mode
latch hold time
tMSH
100
—
ns
D
7
IRQ pulse width
Asynchronous path2
Synchronous path3
3
This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry. Shorter pulses may or may not be
recognized. In stop mode, the synchronizer is bypassed so shorter pulses can be recognized in that case.
tILIH, tIHIL
100
1.5 x tcyc
——
ns
D
8
KBIPx pulse width
Asynchronous path2
Synchronous path3
tILIH, tIHIL
100
1.5 x tcyc
——
ns
D
9
Port rise and fall time (load = 50 pF)4, Low Drive
4
Timing is shown with respect to 20% VDD and 80% VDD levels. Temperature range –40 C to 105 C.
Slew rate
control disabled
(PTxSE = 0)
tRise, tFall
—11
—
ns
D
Slew rate
control enabled
(PTxSE = 1)
tRise, tFall
—35
—
ns
D
Slew rate
control disabled
(PTxSE = 0)
tRise, tFall
—40
—
ns
D
Slew rate
control enabled
(PTxSE = 1)
tRise, tFall
—75
—
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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