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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： | 33/60页 |
| 文件大小： | 1107K |
| 代理商： | MCF54418CMJ250 |
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Electrical characteristics
MCF5441x ColdFire Microprocessor Data Sheet, Rev. 6
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
39
4.16.1
General timing requirements
Figure 21. SIM clock timing diagram
4.16.2
Reset sequence
4.16.2.1
Cards with internal reset
The reset sequence for this kind of SIM card is as follows (see Figure 22):
After powerup, the clock signal is enabled on SIM_CLK (time T0)
After 200 clock cycles, RX must be high.
The card must send a response on RX acknowledging the reset between 400 and 40,000 clock cycles after T0.
Figure 22. Internal-reset card reset sequence
Table 22. SIM timing specification—High Drive strength
Num
Description
Symbol
Min
Max
Unit
1
SIM clock frequency (SIM_CLK)1
1 50% duty cycle clock
Sfreq
0.01
5 (Some new cards
may reach 10)
MHz
2
SIM_CLK rise time 2
2 With C = 50pF
Srise
–20
ns
3
SIM_CLK fall time 3
3 With C = 50pF
Sfall
–20
ns
4
SIM input transition time (RX, SIM_PD)
Strans
–25
ns
SIM_CLK
Srise
Sfall
1/Sfreq
SIM_VEN
SIM_CLK
SIM_RX
2
T0
1
Response
2
1
< 200 clock cycles
< 40,000 clock cycles
400 clock cycles <
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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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