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| 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： | 52/60页 |
| 文件大小： | 1107K |
| 代理商： | MCF54418CMJ250 |
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MCF5441x ColdFire Microprocessor Data Sheet, Rev. 6
Preliminary—Subject to Change Without Notice
Electrical characteristics
Freescale Semiconductor
56
4.30
Debug AC timing specifications
All debug signals use pad type pad_msr except for PSTCLK which use pad type pad_fsr. The following timing specifications
assume a pad slew rate setting of 11 and a load of 50 pF.1
Figure 41. Real-time trace AC timing
Figure 42. BDM serial port AC timing
1.These timing parameters are specified assuming maximum operating frequency and the fastest pad slew rate setting
(11). When operating this interface at lower frequencies, increase the slew rate by using the 10, 01, or 00 setting to
increase edge rise and fall times, thus reducing EMI.
Table 41. Debug AC timing specification
Num
Characteristic
Min
Max
Units
D0
PSTCLK cycle time
0.5
1/fSYS
D1
PSTCLK rising to PSTDDATA valid
—
3.0
ns
D2
PSTCLK rising to PSTDDATA invalid
0.5
—
ns
D3
DSI-to-DSCLK setup
1
—
PSTCLK
D41
1 DSCLK and DSI are synchronized internally. D4 is measured from the synchronized DSCLK input relative
to the rising edge of PSTCLK.
DSCLK-to-DSO hold
4
—
PSTCLK
D5
DSCLK cycle time
5
—
PSTCLK
D6
BKPT assertion time
1
—
PSTCLK
PSTDDATA[7:0]
D0
D1
D2
Past
Current
DSCLK
DSI
DSO
Next
Current
D5
D3
D4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCF54418CMJ250 | 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU COLDFIRE 250MHZ 256-MA |
| MCF5441X | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MCF5441x ColdFire Microprocessor Data Sheet |
| MCF54450 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microprocessor |
| MCF54450ACVM180 | 制造商:Freescale Semiconductor 功能描述:MCF5445X RISC 32-BIT 180MHZ 1.8V/2.5V/3.3V 256-PIN MA-BGA BR - Trays 制造商:Freescale Semiconductor 功能描述:MCF5445X V4M CORE, MMU, 制造商:Freescale 功能描述:MPU MCF5445X RISC 32-Bit 180MHz 1.8V/2.5V/3.3V 256-Pin MAP-BGA Brick |
| MCF54450AVM240 | 制造商:Freescale Semiconductor 功能描述:MCF5445X RISC 32-BIT 240MHZ 1.8V/2.5V/3.3V 256-PIN MA-BGA BR - Trays |
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