參數(shù)資料
型號(hào): XRM48L950PGET
廠商: Texas Instruments
文件頁數(shù): 139/176頁
文件大?。?/td> 0K
描述: MCU 16/32Bit FLASH 3MB 144LQFP
標(biāo)準(zhǔn)包裝: 1
系列: Hercules™ ARM® RM4x
應(yīng)用: 工業(yè)安全,醫(yī)療
核心處理器: ARM? Cortex? - R4F
程序存儲(chǔ)器類型: 閃存(3MB)
控制器系列: RM4
RAM 容量: 256K x 8
接口: CAN,以太網(wǎng),I²C,LIN,MibSPI,SCI,SPI,USB
輸入/輸出數(shù): 64
電源電壓: 1.14 V ~ 3.6 V
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
包裝: 托盤
供應(yīng)商設(shè)備封裝: 144-LQFP(20x20)
其它名稱: 296-29389
BIAS_EN
Low
Power
Oscillator
LFEN
LF_TRIM
HFEN
HF_TRIM
CLK80K
CLK10M
CLK10M_VALID
nPORRST
SPNS174A – APRIL 2012 – REVISED SEPTEMBER 2013
4.6.1.2
Low Power Oscillator
The Low Power Oscillator (LPO) is comprised of two oscillators — HF LPO and LF LPO, in a single
macro.
4.6.1.2.1 Features
The main features of the LPO are:
Supplies a clock at extremely low power for power-saving modes. This is connected as clock source #
4 of the Global Clock Module.
Supplies a high-frequency clock for non-timing-critical systems. This is connected as clock source # 5
of the Global Clock Module.
Provides a comparison clock for the crystal oscillator failure detection circuit.
Figure 4-5. LPO Block Diagram
Figure 4-5 shows a block diagram of the internal reference oscillator. This is a low power oscillator (LPO)
and provides two clock sources: one nominally 80KHz and one nominally 10MHz.
4.6.1.2.2 LPO Electrical and Timing Specifications
Table 4-10. LPO Specifications
Parameter
MIN
Typical
MAX
Unit
Clock Detection
oscillator fail frequency - lower threshold, using
1.375
2.4
4.875
MHz
untrimmed LPO output
oscillator fail frequency - higher threshold, using
22
38.4
78
MHz
untrimmed LPO output
LPO - HF oscillator
untrimmed frequency
5.5
9
19.5
MHz
(fHFLPO)
trimmed frequency
8
9.6
11
MHz
startup time from STANDBY (LPO BIAS_EN High for
10
s
at least 900s)
cold startup time
900
s
LPO - LF oscillator
untrimmed frequency
36
85
180
kHz
startup time from STANDBY (LPO BIAS_EN High for
100
s
at least 900s)
cold startup time
2000
s
Copyright 2012–2013, Texas Instruments Incorporated
System Information and Electrical Specifications
65
Product Folder Links: RM48L950 RM48L750 RM48L550
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XRM48L952PGET 功能描述:ARM微控制器 - MCU 16/32B RISC Fl. MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
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