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| 型號(hào)： | TMP470R1B768PGE |
| 廠(chǎng)商： | Texas Instruments, Inc. |
| 英文描述： | 16/32-Bit RISC Flash Microcontroller |
| 中文描述： | 16/32位RISC閃存微控制器 |
| 文件頁(yè)數(shù)： | 28/50頁(yè) |
| 文件大?。?/td> | 393K |
| 代理商： | TMP470R1B768PGE |
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External Reference Resonator/Crystal Oscillator Clock Option
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 5
a. 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.
!
"
TMS470R1B768
16/32-Bit RISC Flash Microcontroller
SPNS108A–AUGUST 2005–REVISED AUGUST 2006
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 5
b.
A.
The values of C1 and C2 should be provided by the resonator/crystal vendor.
Figure 5. Crystal/Clock Connection
28
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