參數(shù)資料
型號(hào): MK40N512VLL100
廠(chǎng)商: FREESCALE SEMICONDUCTOR INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, LQFP-100
文件頁(yè)數(shù): 21/63頁(yè)
文件大小: 1735K
代理商: MK40N512VLL100
Table 15. Oscillator frequency specifications (continued)
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
tcst
Crystal startup time — 32 kHz low-frequency,
low-power mode (HGO=0)
TBD
ms
2, 3
Crystal startup time — 32 kHz low-frequency,
high-gain mode (HGO=1)
800
ms
Crystal startup time — 8 MHz high-frequency
(MCG_C2[RANGE]=01), low-power mode
(HGO=0)
4
ms
Crystal startup time — 8 MHz high-frequency
(MCG_C2[RANGE]=01), high-gain mode
(HGO=1)
3
ms
1. Other frequency limits may apply when external clock is being used as a reference for the FLL or PLL
2. Proper PC board layout procedures must be followed to achieve specifications.
3. Crystal startup time is defined as the time between the oscillator being enabled and the OSCINIT bit in the MCG_S register
being set.
6.3.3 32kHz Oscillator Electrical Characteristics
This section describes the module electrical characteristics.
6.3.3.1 32kHz oscillator DC electrical specifications
Table 16. 32kHz oscillator DC electrical specifications
Symbol
Description
Min.
Typ.
Max.
Unit
VBAT
Supply voltage
1.71
3.6
V
RF
Internal feedback resistor
100
Cpara
Parasitical capacitance of EXTAL32 and XTAL32
2.5
pF
Cload
Internal load capacitance (programmable)
15
pF
Vpp
Peak-to-peak amplitude of oscillation
0.6
V
6.3.3.2 32kHz oscillator frequency specifications
Table 17. 32kHz oscillator frequency specifications
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
fosc_lo
Oscillator crystal
32
kHz
tstart
Crystal start-up time
1000
ms
1. Proper PC board layout procedures must be followed to achieve specifications.
6.4 Memories and memory interfaces
Peripheral operating requirements and behaviors
K40 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
28
Preliminary
Freescale Semiconductor, Inc.
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