參數(shù)資料
型號: KMPC875VR80
廠商: Freescale Semiconductor
文件頁數(shù): 53/84頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC 80MHZ 256PBGA
標(biāo)準(zhǔn)包裝: 2
系列: MPC8xx
處理器類型: 32-位 MPC8xx PowerQUICC
速度: 80MHz
電壓: 3.3V
安裝類型: 表面貼裝
封裝/外殼: 256-BGA
供應(yīng)商設(shè)備封裝: 256-PBGA(23x23)
包裝: 托盤
MPC875/MPC870 PowerQUICC Hardware Specifications, Rev. 4
Freescale Semiconductor
57
CPM Electrical Characteristics
13.6
SCC in NMSI Mode Electrical Specifications
Table 22 provides the NMSI external clock timing.
Table 23 provides the NMSI internal clock timing.
Table 22. NMSI External Clock Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
100
RCLK3 and TCLK3 width high1
1 The ratios SYNCCLK/RCLK3 and SYNCCLK/TCLK3 must be greater than or equal to 2.25/1.
1/SYNCCLK
ns
101
RCLK3 and TCLK3 width low
1/SYNCCLK + 5
ns
102
RCLK3 and TCLK3 rise/fall time
15.00
ns
103
TXD3 active delay (from TCLK3 falling edge)
0.00
50.00
ns
104
RTS3 active/inactive delay (from TCLK3 falling edge)
0.00
50.00
ns
105
CTS3 setup time to TCLK3 rising edge
5.00
ns
106
RXD3 setup time to RCLK3 rising edge
5.00
ns
107
RXD3 hold time from RCLK3 rising edge2
2 Also applies to CD and CTS hold time when they are used as external SYNC signals.
5.00
ns
108
CD3 setup time to RCLK3 rising edge
5.00
ns
Table 23. NMSI Internal Clock Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
100
RCLK3 and TCLK3 frequency1
1 The ratios SYNCCLK/RCLK3 and SYNCCLK/TCLK3 must be greater or equal to 3/1.
0.00
SYNCCLK/3
MHz
102
RCLK3 and TCLK3 rise/fall time
ns
103
TXD3 active delay (from TCLK3 falling edge)
0.00
30.00
ns
104
RTS3 active/inactive delay (from TCLK3 falling edge)
0.00
30.00
ns
105
CTS3 setup time to TCLK3 rising edge
40.00
ns
106
RXD3 setup time to RCLK3 rising edge
40.00
ns
107
RXD3 hold time from RCLK3 rising edge2
2 Also applies to CD and CTS hold time when they are used as external SYNC signals.
0.00
ns
108
CD3 setup time to RCLK3 rising edge
40.00
ns
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