參數(shù)資料
型號(hào): MPC8555VTALD
廠商: FREESCALE SEMICONDUCTOR INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783
封裝: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, LEAD FREE, FLIP CHIP, PLASTIC, BGA-783
文件頁(yè)數(shù): 6/88頁(yè)
文件大?。?/td> 772K
代理商: MPC8555VTALD
MPC8555E PowerQUICC III Integrated Communications Processor Hardware Specification, Rev. 3.1
14
Freescale Semiconductor
Clock Timing
4
Clock Timing
4.1
System Clock Timing
Table 6 provides the system clock (SYSCLK) AC timing specifications for the MPC8555E.
4.2
TSEC Gigabit Reference Clock Timing
Table 7 provides the TSEC gigabit reference clock (EC_GTX_CLK125) AC timing specifications for the
MPC8555E.
Table 6. SYSCLK AC Timing Specifications
Parameter/Condition
Symbol
Min
Typical
Max
Unit
Notes
SYSCLK frequency
fSYSCLK
——
166
MHz
1
SYSCLK cycle time
tSYSCLK
6.0
ns
SYSCLK rise and fall time
tKH, tKL
0.6
1.0
1.2
ns
2
SYSCLK duty cycle
tKHK/tSYSCLK
40
60
%
3
SYSCLK jitter
+/- 150
ps
4, 5
Notes:
1. Caution: The CCB to SYSCLK ratio and e500 core to CCB ratio settings must be chosen such that the resulting SYSCLK
frequency, e500 (core) frequency, and CCB frequency do not exceed their respective maximum or minimum operating
frequencies.
2. Rise and fall times for SYSCLK are measured at 0.6 V and 2.7 V.
3. Timing is guaranteed by design and characterization.
4. This represents the total input jitter—short term and long term—and is guaranteed by design.
5. For spread spectrum clocking, guidelines are +/-1% of the input frequency with a maximum of 60 kHz of modulation
regardless of the input frequency.
Table 7. EC_GTX_CLK125 AC Timing Specifications
Parameter/Condition
Symbol
Min
Typical
Max
Unit
Notes
EC_GTX_CLK125 frequency
fG125
125
MHz
EC_GTX_CLK125 cycle time
tG125
—8
ns
EC_GTX_CLK125 rise time
tG125R
——
1.0
ns
1
EC_GTX_CLK125 fall time
tG125F
——
1.0
ns
1
EC_GTX_CLK125 duty cycle
GMII, TBI
RGMII, RTBI
tG125H/tG125
45
47
55
53
%1, 2
Notes:
1. Timing is guaranteed by design and characterization.
2. EC_GTX_CLK125 is used to generate GTX clock for TSEC transmitter with 2% degradation. EC_GTX_CLK125 duty cycle
can be loosened from 47/53% as long as PHY device can tolerate the duty cycle generated by GTX_CLK of TSEC.
相關(guān)PDF資料
PDF描述
MPC8555CVTALF 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783
MPC8555EVTALD 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783
MPC8555ECPXAJF RISC PROCESSOR, PBGA783
MPC8555EPXAJD 32-BIT, 533 MHz, RISC PROCESSOR, PBGA783
MPC8555EVTAJD 32-BIT, 533 MHz, RISC PROCESSOR, PBGA783
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8555VTALF 功能描述:微處理器 - MPU PQ 37 LITE 8555 RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8555VTAPF 功能描述:微處理器 - MPU PQ 37 LITE 8555 RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8555VTAQF 功能描述:IC MPU POWERQUICC III 783-FCPBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC85xx 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類(lèi)型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類(lèi)型:表面貼裝 封裝/外殼:783-BBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:783-FCPBGA(29x29) 包裝:托盤(pán)
MPC855TCVR50D4 功能描述:微處理器 - MPU POWER QUICC-NO LEAD RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC855TCVR50D4R2 功能描述:微處理器 - MPU POWER QUICC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324