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参数资料
| 型号： | MCF51QF128VHS |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | FLASH, 50 MHz, MICROCONTROLLER, QCC44 |
| 封装： | 5 X 5 MM, QFN-44 |
| 文件页数： | 9/72页 |
| 文件大小： | 1031K |
| 代理商： | MCF51QF128VHS |
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5.3 Switching electrical specifications
Table 9. Device clock specifications
Symbol
Description
Min.
Max.
Unit
Notes
Normal run mode
fSYS
System and core clock
—
50
MHz
fSYS_USB
System and core clock when USB in operation
20
—
MHz
fBUS
Bus clock
—
25
MHz
FB_CLK
Mini-FlexBus clock
—
25
MHz
fLPTMR
LPTMR clock
—
25
MHz
VLPR mode
fSYS
System and core clock
—
2
MHz
fBUS
Bus clock
—
1
MHz
FB_CLK
Mini-FlexBus clock
—
1
MHz
fLPTMR
LPTMR clock1
—
25
MHz
1. A maximum frequency of 25 MHz for the LPTMR in VLPR mode is possible when the LPTMR is configured for pulse
counting mode and is driven externally via the LPTMR_ALT1, LPTMR_ALT2, or LPTMR_ALT3 pin.
5.3.1 General Switching Specifications
These general purpose specifications apply to all signals configured for EGPIO, MTIM,
CMT, PDB, IRQ, and I2C signals. The conditions are 50 pf load, VDD = 1.71 V to 3.6 V,
and full temperature range. The GPIO are set for high drive, no slew rate control, and no
input filter, digital or analog, unless otherwise specified.
Table 10. EGPIO General Control Timing
Symbol
Description
Min.
Max.
Unit
G1
Bus clock from CLK_OUT pin high to GPIO output valid
—
32
ns
G2
Bus clock from CLK_OUT pin high to GPIO output invalid
(output hold)
1
—
ns
G3
GPIO input valid to bus clock high
28
—
ns
G4
Bus clock from CLK_OUT pin high to GPIO input invalid
—
4
ns
GPIO pin interrupt pulse width (digital glitch filter disabled)
Synchronous path1
1.5
—
Bus
clock
cycles
Table continues on the next page...
Nonswitching electrical specifications
MCF51JF128 Advance Information Data Sheet, Rev. 3, 08/2011.
Freescale Semiconductor, Inc.
Preliminary
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCF51QH128 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
| MCF51QH128VHS | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
| MCF51QH128VHX | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
| MCF51QH32VFM | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
| MCF51QH32VHS | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
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