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參數(shù)資料
型號(hào): MPC8245TZU350D
廠商: Freescale Semiconductor
文件頁數(shù): 21/68頁
文件大?。?/td> 0K
描述: IC MPU 32BIT 350MHZ 352-TBGA
標(biāo)準(zhǔn)包裝: 24
系列: MPC82xx
處理器類型: 32-位 MPC82xx PowerQUICC II
速度: 350MHz
電壓: 2V
安裝類型: 表面貼裝
封裝/外殼: 352-LBGA
供應(yīng)商設(shè)備封裝: 352-TBGA(35x35)
包裝: 托盤
MPC8245 Integrated Processor Hardware Specifications, Rev. 10
28
Freescale Semiconductor
Electrical and Thermal Characteristics
Figure 17 shows the AC timing diagram for the I2C bus.
Figure 17. I2C Bus AC Timing Diagram
4.7
PIC Serial Interrupt Mode AC Timing Specifications
Table 14 provides the PIC serial interrupt mode AC timing specifications for the MPC8245 at
recommended operating conditions (see Table 2) with GVDD = 3.3 V ± 5% and LVDD = 3.3 V ± 0.3 V.
Table 14. PIC Serial Interrupt Mode AC Timing Specifications
Num
Characteristic
Min
Max
Unit
Notes
1
S_CLK frequency
1/14 SDRAM_SYNC_IN
1/2 SDRAM_SYNC_IN
MHz
1
2
S_CLK duty cycle
40
60
%
3
S_CLK output valid time
6
ns
4
Output hold time
0
ns
5S_FRAME, S_RST output valid time
1 sys_logic_clk period + 6
ns
2
6
S_INT input setup time to S_CLK
1 sys_logic_clk period + 2
ns
2
7
S_INT inputs invalid (hold time) to S_CLK
0
ns
2
Notes:
1. See the MPC8245 Integrated Processor Reference Manual for a description of the PIC interrupt control register (ICR) and
S_CLK frequency programming.
2. S_RST, S_FRAME, and S_INT shown in Figure 18 and Figure 19, depict timing relationships to sys_logic_clk and S_CLK
and do not describe functional relationships between S_RST, S_FRAME, and S_INT. The MPC8245 Integrated Processor
Reference Manual describes the functional relationships between these signals.
3. The sys_logic_clk waveform is the clocking signal of the internal peripheral logic from the output of the peripheral logic PLL;
sys_logic_clk is the same as SDRAM_SYNC_IN when the SDRAM_SYNC_OUT to SDRAM_SYNC_IN feedback loop is
implemented and the DLL is locked. See the MPC8245 Integrated Processor Reference Manual for a complete clocking
description.
Sr
S
SDA
SCL
tI2CF
tI2SXKL
tI2CL
tI2CH
tI2DXKL,tI2OVKL
tI2DVKH
tI2SXKL
tI2SVKH
tI2KHKL
tI2PVKH
tI2CR
tI2CF
PS
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