参数资料
型号: TMS470R1A384PZ-T
厂商: Texas Instruments
文件页数: 29/62页
文件大小: 0K
描述: IC RISC MCU 384K FLASH 100-LQFP
标准包装: 90
系列: TMS470
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 48MHz
连通性: CAN,C2Slb,I²C,SCI,SPI
外围设备: DMA,PWM,WDT
输入/输出数: 53
程序存储器容量: 384KB(384K x 8)
程序存储器类型: 闪存
RAM 容量: 32K x 8
电压 - 电源 (Vcc/Vdd): 1.71 V ~ 2.05 V
数据转换器: A/D 12x10b
振荡器型: 外部
工作温度: -40°C ~ 105°C
封装/外壳: 100-LQFP
包装: 托盘
产品目录页面: 718 (CN2011-ZH PDF)
配用: 296-23003-ND - KIT DEV KICKSTART TMS470
其它名称: 296-19292
External Reference Resonator/Crystal Oscillator Clock Option
External
Clock Signal
(toggling 0-1.8 V)
OSCOUT
OSCIN
Crystal
OSCOUT
OSCIN
(a)
(b)
C1(A)
C2(A)
www.ti.com ......................................................................................................................................................... SPNS110E – AUGUST 2005 – REVISED MAY 2008
The oscillator is enabled by connecting the appropriate fundamental 4-20 MHz resonator/crystal and load
capacitors across the external OSCIN and OSCOUT pins as shown in Figure 6a. The oscillator is a single-stage
inverter held in bias by an integrated bias resistor. This resistor is disabled during leakage test measurement and
HALT mode. TI strongly encourages each customer to submit samples of the device to the
resonator/crystal vendors for validation. The vendors are equipped to determine what load capacitors will
best tune their resonator/crystal to the microcontroller device for optimum start-up and operation over
temperature/voltage extremes.
An external oscillator source can be used by connecting a 1.8-V clock signal to the OSCIN pin and leaving the
OSCOUT pin unconnected (open) as shown in Figure 6b.
A.
The values of C1 and C2 should be provided by the resonator/crystal vendor.
Figure 6. Crystal/Clock Connection
Copyright 2005–2008, Texas Instruments Incorporated
35
Product Folder Link(s): TMS470R1A384
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