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參數(shù)資料
型號: MC56F8346
廠商: Motorola, Inc.
英文描述: 56F8346 16-bit Hybrid Controller
中文描述: 56F8346 16位混合控制器
文件頁數(shù): 133/160頁
文件大小: 1415K
代理商: MC56F8346
Crystal Oscillator Timing
56F8346 Technical Data
Preliminary
133
10.8 Crystal Oscillator Timing
10.9 External Memory Interface Timing
The External Memory Interface is designed to access static memory and peripheral devices.
Figure 10-4
shows sample timing and parameters that are detailed in
Table 10-16
.
The timing of each parameter consists of both a fixed delay portion and a clock related portion, as
well as user controlled wait states. The equation:
t = D + P * (M + W)
should be used to determine the actual time of each parameter. The terms in this equation are defined
as:
t
= Parameter delay time
D
= Fixed portion of the delay, due to on-chip path delays
P
= Period of the system clock, which determines the execution rate of the part
(i.e., when the device is operating at 60MHz, P = 16.67 ns)
M
= Fixed portion of a clock period inherent in the design; this number is adjusted to account
for possible derating of clock duty cycle
W
= Sum of the applicable wait state controls. The “Wait State Controls” column of
Table 10-16
shows the applicable controls for each parameter and the EMI chapter of the
56F8300 Peripheral User Manual
details what each wait state field controls.
When using the XTAL clock input directly as the chip clock without prescaling (ZSRC selects
prescaler clock and prescaler set to
÷
1),
the EMI quadrature clock is generated using both edges
of the EXTAL clock input. In this one situation parameter values need to be adjusted for the duty
Table 10-15 Crystal Oscillator Parameters
Characteristic
Symbol
Min
Typ
Max
Unit
Crystal Start-up time
T
CS
4
5
10
ms
Resonator Start-up time
T
RS
0.1
0.18
1
ms
Crystal ESR
R
ESR
120
ohms
Crystal Peak-to-Peak Jitter
T
D
70
250
ps
Crystal Min-Max Period Variation
T
PV
0.12
1.5
ns
Resonator Peak-to-Peak Jitter
T
RJ
300
ps
Resonator Min-Max Period Variation
T
RP
300
ps
Bias Current, high-drive mode
I
BIASH
250
290
μ
A
Bias Current, low-drive mode
I
BIASL
80
110
μ
A
Quiescent Current, power-down mode
I
PD
0
1
μ
A
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8346EVM 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Contents:Inst
MC56F8346MFV60 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8346MFVE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8346VFV60 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8346VFVE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
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