參數(shù)資料
型號: MPC8271CZQMIBX
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 266 MHz, RISC PROCESSOR, PBGA516
封裝: 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, PLASTIC, MS-034AAL-1, BGA-516
文件頁數(shù): 16/60頁
文件大?。?/td> 918K
代理商: MPC8271CZQMIBX
MPC8272 PowerQUICC II Family Hardware Specifications, Rev. 1.5
Freescale Semiconductor
23
AC Electrical Characteristics
NOTE
The UPM machine outputs change on the internal tick determined by the
memory controller programming; the AC specifications are relative to the
internal tick. Note that SDRAM and GPCM machine outputs change on
CLKin’s rising edge.
6.3
JTAG Timings
Table 14 lists the JTAG timings.
Table 14. JTAG Timings1
Parameter
Symbol2
Min
Max
Unit
Notes
JTAG external clock frequency of operation
fJTG
033.3
MHz
JTAG external clock cycle time
tJTG
30
ns
JTAG external clock pulse width measured at 1.4V
tJTKHKL
15
ns
JTAG external clock rise and fall times
tJTGR and
tJTGF
05
ns
6
TRST assert time
tTRST
25
ns
3, 6
Input setup times
Boundary-scan data
TMS, TDI
tJTDVKH
tJTIVKH
4
ns
4, 7
Input hold times
Boundary-scan data
TMS, TDI
tJTDXKH
tJTIXKH
10
ns
4, 7
Output valid times
Boundary-scan data
TDO
tJTKLDV
tJTKLOV
10
ns
5, 7
5. 7
Output hold times
Boundary-scan data
TDO
tJTKLDX
tJTKLOX
1
ns
5, 7
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