参数资料
型号: MSC8122VT8000
厂商: Freescale Semiconductor
文件页数: 18/48页
文件大小: 0K
描述: IC DSP QUAD 16B 500MHZ 431FCPBGA
标准包装: 60
系列: StarCore
类型: SC140 内核
接口: DSI,以太网,RS-232
时钟速率: 500MHz
非易失内存: 外部
芯片上RAM: 1.436MB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 431-BFBGA,FCBGA
供应商设备封装: 431-FCPBGA(20x20)
包装: 托盘
配用: MSC8122ADSE-ND - KIT ADVANCED DEV SYSTEM 8122
Electrical Characteristics
In all cases, the power-up sequence must follow the guidelines shown in Figure 8 .
V
3.3 V
B
V DDH (IO)
A
1.2 V
V DD /V CCSYN
t (time)
Figure 8. Power-Up Sequence for V DDH and V DD /V CCSYN
The following rules apply:
1.
2.
2.5.3
During time interval A, V DDH should always be equal to or less than the V DD / V CCSYN voltage level.
The duration of interval A should be kept below 10 ms.
The duration of timing interval B should be kept as small as possible and less than 10 ms.
Clock and Timing Signals
The following sections include a description of clock signal characteristics. Table 7 shows the maximum frequency values for
internal (Core, Reference, Bus, and DSI) and external ( CLKIN and CLKOUT ) clocks. The user must ensure that maximum
frequency values are not exceeded.
Table 7. Maximum Frequencies
Characteristic
Core frequency
Reference frequency (REFCLK)
Internal bus frequency (BLCK)
DSI clock frequency (HCLKIN)
? Core frequency = 300 MHz
? Core frequency = 400/500 MHz
External clock frequency (CLKIN or CLKOUT)
Maximum in MHz
300/400/500
100/133/166
100/133/166
HCLKIN ≤ (min{70 MHz, CLKOUT})
HCLKIN ≤ (min{100 MHz, CLKOUT})
100/133/166
Table 8. Clock Frequencies
Characteristics
Symbol
300 MHz Device
400 MHz Device
500 MHz Device
Min
Max
Min
Max
Min
Max
CLKIN frequency
BCLK frequency
Reference clock (REFCLK) frequency
Output clock (CLKOUT) frequency
SC140 core clock frequency
F CLKIN
F BCLK
F REFCLK
F CLKOUT
F CORE
20
40
40
40
200
100
100
100
100
300
20
40
40
40
200
133.3
133.3
133.3
133.3
400
20
40
40
40
200
166.7
166.7
166.7
166.7
500
Note:
18
The rise and fall time of external clocks should be 3 ns maximum
MSC8122 Quad Digital Signal Processor Data Sheet, Rev. 16
Freescale Semiconductor
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