参数资料
型号: MK20N512VMB100R
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PBGA81
封装: 8 X 8 MM, MAPBGA-81
文件页数: 46/65页
文件大小: 1755K
代理商: MK20N512VMB100R
Table 36. USB VREG electrical specifications
(continued)
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
VReg33out Regulator output voltage — Input supply
(VREGIN) < 3.6 V, pass-through mode
2.3
3.6
V
COUT
External output capacitor
1.76
2.2
8.16
μF
ESR
External output capacitor equivalent series
resistance
1
100
ILIM
Current limitation threshold
185
290
395
mA
1. Operating in pass-through mode: regulator output voltage equal to the input voltage minus a drop proportional to ILoad.
6.8.4 CAN switching specifications
6.8.5 DSPI switching specifications (low-speed mode)
The DMA Serial Peripheral Interface (DSPI) provides a synchronous serial bus with
master and slave operations. Many of the transfer attributes are programmable. The tables
below provides DSPI timing characteristics for classic SPI timing modes. Refer to the
DSPI chapter of the Reference Manual for information on the modified transfer formats
used for communicating with slower peripheral devices.
Table 37. Master mode DSPI timing (low-speed mode)
Num
Description
Min.
Max.
Unit
Notes
Operating voltage
1.71
3.6
V
Frequency of operation
12.5
MHz
DS1
DSPI_SCK output cycle time
4 x tBCLK
ns
DS2
DSPI_SCK output high/low time
(tSCK/2) - 4
(tSCK/2) + 4
ns
DS3
DSPI_PCSn to DSPI_SCK output valid
(tSCK/2) - 4
ns
DS4
DSPI_SCK to DSPI_PCSn output hold
(tSCK/2) - 4
ns
DS5
DSPI_SCK to DSPI_SOUT valid
10
ns
DS6
DSPI_SCK to DSPI_SOUT invalid
-2
ns
DS7
DSPI_SIN to DSPI_SCK input setup
15
ns
DS8
DSPI_SCK to DSPI_SIN input hold
0
ns
1. The DSPI module can operate across the entire operating voltage for the processor, but to run across the full voltage
range the maximum frequency of operation is reduced.
Peripheral operating requirements and behaviors
K20 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
50
Preliminary
Freescale Semiconductor, Inc.
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