參數(shù)資料
型號: MPC8255CZUHHBXXX
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 166 MHz, RISC PROCESSOR, PBGA480
封裝: 37.50 X 37.50 MM, 1.27 MM PITCH, TBGA-480
文件頁數(shù): 7/40頁
文件大?。?/td> 1069K
代理商: MPC8255CZUHHBXXX
MPC8260 PowerQUICC II Integrated Communications Processor Hardware Specifications, Rev. 1.3
Freescale Semiconductor
15
Electrical and Thermal Characteristics
Figure 7 shows PIO, timer, and DMA signals.
Figure 7. PIO, Timer, and DMA Signal Diagram
Table 9 lists SIU input characteristics.
Table 9. AC Characteristics for SIU Inputs 1
1
Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of
CLKIN. Timings are measured at the pin.
Spec Number
Characteristic
Setup (ns)
Hold (ns)
Setup
Hold
66 MHz
sp11
sp10
AACK/ARTRY/TA/TS/TEA/DBG/BG/BR
61
sp12
sp10
Data bus in normal mode
5
1
sp13
sp10
Data bus in ECC and PARITY modes
8
1
sp14
sp10
DP pins
8
1
sp14
sp10
All other pins
5
1
Sys clk
PIO/IDMA/TIMER[TGATE assertion] input signals
IDMA output signals
sp22
sp23
sp42/sp43
TIMER/PIO
output signals
sp42/sp43
TIMER input signal [TGATE deassertion]
sp22
sp23
Note: TGATE is asserted on the rising edge of the clock; it is deasserted on the falling edge.
(See note)
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