参数资料
型号: MCF54418CMJ250
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: MICROPROCESSOR, PBGA256
封装: 12 X 12 MM, ROHS COMPLAINT, MAPBGA-256
文件页数: 46/60页
文件大小: 1107K
代理商: MCF54418CMJ250
MCF5441x ColdFire Microprocessor Data Sheet, Rev. 6
Preliminary—Subject to Change Without Notice
Electrical characteristics
Freescale Semiconductor
50
DS6
DSPI_SCK to DSPI_SOUT invalid
–5
ns
DS7
DSPI_SIN to DSPI_SCK input setup
6
ns
DS8
DSPI_SCK to DSPI_SIN input hold
0
ns
Slave Mode
DSPI_SCK frequency
fSCK
—fSYS 8MHz
DS9
DSPI_SCK cycle time
tSCK
8
f
SYS
—ns
DS10
DSPI_SCK duty cycle
(tsck 2) – 2.0
(tsck 2) + 2.0
ns
DS11
DSPI_SCK to DSPI_SOUT valid
12
ns
DS12
DSPI_SCK to DSPI_SOUT invalid
0
ns
DS13
DSPI_SIN to DSPI_SCK input setup
2
ns
DS14
DSPI_SCK to DSPI_SIN input hold
7
ns
DS15
DSPI_SS active to DSPI_SOUT driven
10
ns
DS16
DSPI_SS inactive to DSPI_SOUT not driven
10
ns
1 Timings shown are for DMCR[MTFE] = 0 (classic SPI) and DCTARn[CPHA] = 0. Data is sampled on the DSPI_SIN pin
on the odd-numbered DSPI_SCK edges and driven on the DSPI_SOUT pin on even-numbered DSPI edges.
2 When in master mode, the baud rate is programmable in DCTARn[DBR], DCTARn[PBR], and DCTARn[BR].
3 This specification assumes a 50/50 duty cycle setting. The duty cycle is programmable in DCTARn[DBR],
DCTARn[CPHA], and DCTARn[PBR].
4 The DSPI_PCSn to DSPI_SCK delay is programmable in DCTARn[PCSSCK] and DCTARn[CSSCK].
5 The DSPI_SCK to DSPI_PCSn delay is programmable in DCTARn[PASC] and DCTARn[ASC].
Table 36. DSPI module AC timing specifications1 (continued)
Name
Characteristic
Symbol
Min
Max
Unit
Notes
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