参数资料
型号: XRM48L950ZWTT
厂商: Texas Instruments
文件页数: 140/176页
文件大小: 0K
描述: MCU 16/32Bit FLASH 3MB 337NFBGA
标准包装: 1
系列: Hercules™ ARM® RM4x
应用: 工业安全,医疗
核心处理器: ARM? Cortex? - R4F
程序存储器类型: 闪存(3MB)
控制器系列: RM4
RAM 容量: 256K x 8
接口: CAN,以太网,I²C,LIN,MibSPI,SCI,SPI,USB
输入/输出数: 120
电源电压: 1.14 V ~ 3.6 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 337-LFBGA
包装: 托盘
供应商设备封装: 337-NFBGA(16x16)
其它名称: 296-29390
/NR
/1 to /64
OSCIN
PLL
INTCLK
/OD
/1 to /8
VCOCLK
/R
/1 to /32
post_ODCLK
/NF
/1 to /256
PLLCLK
/NR2
/1 to /64
OSCIN
PLL#2
INTCLK2
/OD2
/1 to /8
VCOCLK2
/R2
/1 to /32
post_ODCLK2
/NF2
/1 to /256
PLL2CLK
fPLLCLK = (fOSCIN / NR) * NF / (OD * R)
f
PLL2CLK = (fOSCIN / NR2) * NF2 / (OD2 * R2)
SPNS174A – APRIL 2012 – REVISED SEPTEMBER 2013
4.6.1.3
Phase Locked Loop (PLL) Clock Modules
The PLL is used to multiply the input frequency to some higher frequency.
The main features of the PLL are:
Frequency modulation can be optionally superimposed on the synthesized frequency of PLL1. The
frequency modulation capability of PLL2 is permanently disabled.
Configurable frequency multipliers and dividers.
Built-in PLL Slip monitoring circuit.
Option to reset the device on a PLL slip detection.
4.6.1.3.1 Block Diagram
The Figure 4-6 shows a high-level block diagram of the two PLL macros on this microcontroller. PLLCTL1
and PLLCTL2 are used to configure the multiplier and dividers for the PLL1. PLLCTL3 is used to configure
the multiplier and dividers for PLL2.
Figure 4-6. ZWT PLLx Block Diagram
4.6.1.3.2 PLL Timing Specifications
Table 4-11. PLL Timing Specifications
PARAMETER
MIN
MAX
UNIT
fINTCLK
PLL1 Reference Clock frequency
1
20
MHz
fpost_ODCLK
Post-ODCLK – PLL1 Post-divider input
MHz
400
clock frequency
fVCOCLK
VCOCLK – PLL1 Output Divider (OD) input
MHz
150
550
clock frequency
fINTCLK2
PLL2 Reference Clock frequency
1
20
MHz
fpost_ODCLK2
Post-ODCLK – PLL2 Post-divider input
MHz
400
clock frequency
fVCOCLK2
VCOCLK – PLL2 Output Divider (OD) input
MHz
150
550
clock frequency
66
System Information and Electrical Specifications
Copyright 2012–2013, Texas Instruments Incorporated
Product Folder Links: RM48L950 RM48L750 RM48L550
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