参数资料
型号: SPC5200CVR400
厂商: Freescale Semiconductor
文件页数: 6/80页
文件大小: 0K
描述: IC MPU 32BIT 400MHZ 272-PBGA
标准包装: 40
系列: MPC52xx
处理器类型: 32-位 MPC52xx PowerPC
速度: 400MHz
电压: 1.5V
安装类型: 表面贴装
封装/外壳: 272-BBGA
供应商设备封装: 272-PBGA(27x27)
包装: 托盘
MPC5200 Data Sheet, Rev. 4
Electrical and Thermal Characteristics
Freescale Semiconductor
14
3.2.4
G2_LE Core PLL Electrical Characteristics
The internal clocking of the G2_LE core is generated from and synchronized to the system clock by means
of a voltage-controlled core PLL.
3.3
AC Electrical Characteristics
Hyperlinks to the indicated timing specification sections are provided below.
AC Test Timing Conditions:
Unless otherwise noted, all test conditions are as follows:
Table 11. G2_LE PLL Specifications
Characteristic
Symbol
Notes
Min
Typical
Max
Unit
SpecID
G2_LE frequency
fcore
1
NOTES:
1
The XLB_CLK frequency and G2_LE PLL Configuration bits must be chosen such that the resulting system
frequencies, CPU (core) frequency, and G2_LE PLL (VCO) frequency do not exceed their respective maximum or
minimum operating frequencies.
50
550
MHz
O4.1
G2_LE cycle time
tcore
2.85
40.0
ns
O4.2
G2_LE VCO frequency
fVCOcore
400
1200
MHz
O4.3
G2_LE input clock frequency
fXLB_CLK
25
367
MHz
O4.4
G2_LE input clock cycle time
tXLB_CLK
2.73
50.0
ns
O4.5
G2_LE input clock jitter
tjitter
2
This represents total input jitter - short term and long term combined - and is guaranteed by design. Two different
types of jitter can exist on the input to core_sysclk, systemic and true random jitter. True random jitter is rejected, but
the PLL. Systemic jitter will be passed into and through the PLL to the internal clock circuitry, directly reducing the
operating frequency.
150
ps
O4.6
G2_LE PLL relock time
tlock
3
Relock time is guaranteed by design and characterization. PLL-relock time is the maximum amount of time required
for the PLL lock after a stable Vdd and core_sysclk are reached during the power-on reset sequence. This
specification also applies when the PLL has been disabled and subsequently re-enabled during sleep modes.
100
sO4.7
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