参数资料
型号: MPC8272CVRP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, EPROM, 300 MHz, RISC MICROCONTROLLER, PBGA516
封装: 27 X 27 MM, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-516
文件页数: 15/61页
文件大小: 394K
代理商: MPC8272CVRP
MPC8272 PowerQUICC II Family Hardware Specifications, Rev. 3
22
Freescale Semiconductor
AC Electrical Characteristics
This figure shows PIO and timer signals.
Figure 8. PIO and Timer Signal Diagram
6.2
SIU AC Characteristics
This table lists SIU input characteristics.
NOTE: CLKIN Jitter and Duty Cycle
The CLKIN input to the SoC should not exceed +/– 150 psec of jitter
(peak-to-peak). This represents total input jitter—the combination of short
term (peak-to-peak) and long term (cumulative). The duty cycle of CLKIN
should not exceed the ratio of 40:60.
NOTE: Spread Spectrum Clocking
Spread spectrum clocking is allowed with 1% input frequency down-spread
at maximum 60 KHz modulation rate regardless of input frequency.
NOTE: PCI AC Timing
The SoC meets the timing requirements of PCI Specification Revision 2.2.
See Section 7, “Clock Configuration Modes,” and “Note: Tval (Output
Hold)” to determine if a specific clock configuration is compliant.
Sys clk
PIO/IDMA/TIMER[TGATE assertion] input signals
IDMA output signals
sp22
sp23
sp42/sp43
TIMER(sp42/43)/ PIO(sp42a/sp43a)
sp42a/sp43a
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)
相关PDF资料
PDF描述
MB95F564HWQN-G-JNE1 8-BIT, FLASH, 16.25 MHz, MICROCONTROLLER, PQCC32
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