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參數(shù)資料
| 型號： | ST10F168-Q2 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | 28 X 28 MM, PLASTIC, QFP-144 |
| 文件頁數(shù)： | 51/76頁 |
| 文件大?。?/td> | 483K |
| 代理商： | ST10F168-Q2 |
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ST10F168
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20.5 - AC Characteristics
20.5.1 - Test Waveforms
20.5.2 - Definition of Internal Timing
The internal operation of the ST10F168 is
controlled by the internal CPU clock fCPU. Both
edges of the CPU clock can trigger internal (e.g.
pipeline) or external (e.g. bus cycles) operations.
The specification of the external timing (AC
Characteristics) therefore depends on the time
between two consecutive edges of the CPU clock,
called “TCL” (see Figure 18).
The CPU clock signal can be generated by
different mechanisms. The duration of TCL and its
variation (and also the derived external timing)
depends on the mechanism used to generate
fCPU.
This influence must be regarded when calculating
the timings for the ST10F168.
The example for PLL operation shown in the
Figure 18 refers to a PLL factor of 4.
The mechanism used to generate the CPU clock
is selected during reset by the logic levels on pins
P0.15-13 (P0H.7-5).
Figure 16 : Input / output waveforms
Figure 17 : Float waveforms
2.4V
0.45V
Test Points
0.2VDD+0.9
0.2VDD-0.1
AC inputs during testing are driven at 2.4V for a logic ‘1’ and 0.4V for a logic ‘0’.
Timing measurements are made at VIH min for a logic ‘1’ and VIL max for a logic ‘0’.
Timing
Reference
Points
VLoad +0.1V
VLoad -0.1V
VOH -0.1V
VOL +0.1V
VLoad
VOL
VOH
For timing purposes a port pin is no longer floating when VLOAD changes of ±100mV.
It begins to float when a 100mV change from the loaded VOH/VOL level occurs (IOH/IOL = 20mA).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST10F168Q3 | 制造商:STMicroelectronics 功能描述:MicroController, 16-Bit, 144 Pin, Plastic, QFP |
| ST10F168-Q3 | 制造商:STMicroelectronics 功能描述:MicroController, 16-Bit, 144 Pin, Plastic, QFP |
| ST10F168-Q6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:16-BIT MCU WITH 256K BYTE FLASH MEMORY AND 8K BYTE RAM |
| ST10F168SQ3 | 功能描述:16位微控制器 - MCU 256K Flash 8K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| ST10F168SQ6 | 功能描述:16位微控制器 - MCU 256K Flash 8K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
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