參數(shù)資料
型號(hào): MC7457VG1000NC
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 54/71頁(yè)
文件大?。?/td> 0K
描述: IC MPU RISC 1000MHZ 483FCCBGA
標(biāo)準(zhǔn)包裝: 36
系列: MPC74xx
處理器類型: 32-位 MPC74xx PowerPC
速度: 1.0GHz
電壓: 1.1V
安裝類型: 表面貼裝
封裝/外殼: 483-BCBGA,F(xiàn)CCBGA
供應(yīng)商設(shè)備封裝: 483-FCCBGA(29x29)
包裝: 托盤
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 8
System Design Information
Freescale Semiconductor
58
The QACK signal shown in Figure 26 is usually connected to the PCI bridge chip in a system and is an
input to the MPC7457 informing it that it can go into the quiescent state. Under normal operation this
occurs during a low-power mode selection. In order for COP to work, the MPC7457 must see this signal
asserted (pulled down). While shown on the COP header, not all emulator products drive this signal. If the
product does not, a pull-down resistor can be populated to assert this signal. Additionally, some emulator
products implement open-drain type outputs and can only drive QACK asserted; for these tools, a pull-up
resistor can be implemented to ensure this signal is deasserted when it is not being driven by the tool. Note
that the pull-up and pull-down resistors on the QACK signal are mutually exclusive and it is never
necessary to populate both in a system. To preserve correct power-down operation, QACK should be
merged via logic so that it also can be driven by the PCI bridge.
相關(guān)PDF資料
PDF描述
ABB105DHAR CONN EDGECARD 210PS R/A .050 SLD
KMC8610VT1333JB IC HOST PROCESS 1333MHZ 783-PBGA
ACB105DHAR CONN EDGECARD 210PS R/A .050 DIP
FMC28DREN-S734 CONN EDGECARD 56POS .100 EYELET
XC4025E-2HQ304C IC FPGA C-TEMP 5V 2SPD 304-HQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC7457VG1267LC 功能描述:微處理器 - MPU APOLO7 RV1.2 1.3V 105C 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
MC7457VG733NC 功能描述:IC MPU RISC 733MHZ 483FCCBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC74xx 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類型: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
MC7457VG867NC 功能描述:微處理器 - MPU APOLO7 RV1.2 1.1V 105C 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
MC74A5-33SNTR 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
MC74A5-50T 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel