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參數(shù)資料
| 型號： | DSP56F805FV80E |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 3/56頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DSP 80MHZ 64KB FLASH 144LQFP |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 系列： | 56F8xx |
| 核心處理器： | 56800 |
| 芯體尺寸： | 16-位 |
| 速度： | 80MHz |
| 連通性： | CAN，EBI/EMI，SCI，SPI |
| 外圍設(shè)備： | POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲器容量： | 71KB（35.5K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 2.5K x 16 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x12b |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 144-LQFP |
| 包裝： | 托盤 |
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Clock and Phase Locked Loop Signals
56F805 Technical Data, Rev. 16
Freescale Semiconductor
11
2.3 Clock and Phase Locked Loop Signals
2.4 Address, Data, and Bus Control Signals
Table 2-5 PLL and Clock
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
1
EXTAL
Input
External Crystal Oscillator Input—This input should be
connected to an 8MHz external crystal or ceramic resonator. For
more information, please refer to Section 3.5.
1
XTAL
Input/O
utput
Chip-driven
Crystal Oscillator Output—This output should be connected to
an 8MHz external crystal or ceramic resonator. For more
information, please refer to Section 3.5.
This pin can also be connected to an external clock source. For
more information, please refer to Section 3.5.3.
1
CLKO
Output
Chip-driven
Clock Output—This pin outputs a buffered clock signal. By
programming the CLKOSEL[4:0] bits in the CLKO Select
Register (CLKOSR), the user can select between outputting a
version of the signal applied to XTAL and a version of the
device’s master clock at the output of the PLL. The clock
frequency on this pin can also be disabled by programming the
CLKOSEL[4:0] bits in CLKOSR.
Table 2-6 Address Bus Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
6
A0–A5
Output
Tri-stated
Address Bus—A0–A5 specify the address for external
Program or Data memory accesses.
2
A6–A7
GPIOE2–
GPIOE3
Output
Input/O
utput
Tri-stated
Input
Address Bus—A6–A7 specify the address for external
Program or Data memory accesses.
Port E GPIO—These two General Purpose I/O (GPIO) pins
can be individually programmed as input or output pins.
After reset, the default state is Address Bus.
8
A8–A15
GPIOA0–
GPIOA7
Output
Input/O
utput
Tri-stated
Input
Address Bus—A8–A15 specify the address for external
Program or Data memory accesses.
Port A GPIO—These eight General Purpose I/O (GPIO) pins
can be individually be programmed as input or output pins.
After reset, the default state is Address Bus.
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