參數(shù)資料
型號(hào)： MCF51AC256AVPUE
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 50.33 MHz, MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, MS-026BCD, LQFP-64
文件頁(yè)數(shù)： 20/46頁(yè)
文件大小： 1036K
代理商： MCF51AC256AVPUE
Electrical Characteristics
MCF51AC256 ColdFire Microcontroller Data Sheet, Rev.4
Freescale Semiconductor
27
2.9
External Oscillator (XOSC) Characteristics
3 Monotonicity and No-Missing-Codes guaranteed in 10-bit and 8-bit modes
4 Based on input pad leakage current. Refer to pad electricals.
Table 15. Oscillator Electrical Specifications (Temperature Range = –40 to 105
°C Ambient)
Num
C
Rating
Symbol
Min
Typical1
1 Data in Typical column was characterized at 5.0 V, 25
°C or is typical recommended value.
Max
Unit
1C
Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)
Low range (RANGE = 0)
High range (RANGE = 1) FEE or FBE mode2
High range (RANGE = 1) PEE or PBE mode3
High range (RANGE = 1, HGO = 1) BLPE mode
High range (RANGE = 1, HGO = 0) BLPE mode
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.
flo
fhi-fll
fhi-pll
fhi-hgo
fhi-lp
32
1
—
38.4
5
16
8
kHz
MHz
2
— Load capacitors
C1
C2
See crystal or resonator
manufacturer’s recommendation.
3—
Feedback resistor
Low range (32 kHz to 38.4 kHz)
High range (1 MHz to 16 MHz)
RF
10
1
M
Ω
4—
Series resistor
Low range, low gain (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)
High range, high gain (RANGE = 1, HGO = 1)
≥ 8 MHz
4 MHz
1 MHz
RS
—
0
100
0
—
0
10
20
k
Ω
5T
Crystal start-up time 4
Low range, low gain (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)5
High range, high gain (RANGE = 1, HGO = 1)5
4 This parameter is characterized and not tested on each device. Proper PC board layout procedures must be followed to
achieve specifications.
5 4 MHz crystal
t
CSTL-LP
t
CSTL-HGO
t
CSTH-LP
t
CSTH-HGO
—
200
400
5
15
—
ms
6T
Square wave input clock frequency (EREFS = 0, ERCLKEN =
1)
FEE or FBE mode 2
PEE or PBE mode 3
BLPE mode
fextal
0.03125
1
0
—
5
16
40
MHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCF51AC256B 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF51AC256 ColdFire Microcontroller
MCF51AC256BCFGE 制造商:Freescale Semiconductor 功能描述:MCF51AC256BCFGE - Bulk
MCF51AC256BCFUE 功能描述:32位微控制器 - MCU 256KFLASH,32K RAM NO CAN 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(shí)鐘頻率:90 MHz 程序存儲(chǔ)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
MCF51AC256BCLKE 功能描述:32位微控制器 - MCU 256KFLASH,32K RAM NO CAN 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(shí)鐘頻率:90 MHz 程序存儲(chǔ)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
MCF51AC256BCLKER 功能描述:32位微控制器 - MCU 256KFLASH,32K RAM NO CAN 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(shí)鐘頻率:90 MHz 程序存儲(chǔ)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
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