參數(shù)資料
型號： MPC8245LZU350X
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 350 MHz, RISC PROCESSOR, PBGA352
封裝： 35 X 35 MM, 1.65 MM HEIGHT, 1.27 MM PITCH, CAVITY DOWN, TBGA-352
文件頁數(shù)： 15/60頁
文件大?。?/td> 620K
代理商： MPC8245LZU350X
22
MPC8245 Integrated Processor Hardware Specications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Electrical and Thermal Characteristics
1.4.3.3 Output AC Timing Specication
Table 10 provides the processor bus AC timing specications for the MPC8245. See Figure 9.
Notes:
1
All memory and related interface output signal specications are specied from the VM = 1.4 V of the ris-
ing edge of the memory bus clock, SDRAM_SYNC_IN to the TTL level (0.8 or 2.0 V) of the signal in
question. SDRAM_SYNC_IN is the same as PCI_SYNC_IN in 1:1 mode, but is twice the frequency in
2:1 mode (processor/memory bus clock rising edges occur on every rising and falling edge of
PCI_SYNC_IN). See Figure 9.
2
All PCI signals are measured from OVdd/2 of the rising edge of PCI_SYNC_IN to 0.285*OVdd or
0.615*OVdd of the signal in question for 3.3 V PCI signaling levels. See Figure 10.
3
All output timings assume a purely resistive 50 ohm load (see Figure 12). Output timings are measured
at the pin; time-of-ight delays must be added for trace lengths, vias, and connectors in the system.
4
PCI bussed signals are composed of the following signals: LOCK, IRDY, C/BE[3–0], PAR, TRDY, FRAME,
STOP, DEVSEL, PERR, SERR, AD[31–0], REQ[4–0], GNT[4–0], IDSEL, INTA.
5
In order to meet minimum output hold specications relative to PCI_SYNC_IN for both 33 MHz and 66
MHz PCI systems, the MPC8245 has a programmable output hold delay for PCI signals (the
“PCI_SYNC_IN to Output Valid” timing is also affected). The initial value of the output hold delay is
determined by the values on the MCP and CKE reset conguration signals; the values on these two sig-
nals are inverted then stored as the initial settings of PCI_HOLD_DEL = PMCR2[5–4] (Power Manage-
ment Conguration Register 2 <0x72>), respectively. Since MCP and CKE have internal pull-up resistors,
the default value of PCI_HOLD_DEL after reset is 0b00. Further output hold delay values are available
by programming the PCI_HOLD_DEL value of the PMCR2 conguration register. See Figure 13.
6
These specications are for the default driver strengths indicated in Figure 4
Table 10. Output AC Timing Specifications
At recommended operating conditions (see Table 2) with LVdd = 3.3 V ± 0.3V
Num
Characteristic3,6
Min
Max
Units
Notes
12a
PCI_SYNC_IN to Output Valid, See Figure 13.
12a0 Tap 0, PCI_HOLD_DEL=00, [MCP,CKE]=11, 66 MHz PCI (Default)
—
6.0
ns
2,4
12a1 Tap 1, PCI_HOLD_DEL=01, [MCP,CKE]=10
—
6.5
12a2 Tap 2, PCI_HOLD_DEL=10, [MCP,CKE]=01, 33 MHz PCI
—
7.0
12a3 Tap 3, PCI_HOLD_DEL=11, [MCP,CKE]=00
—
7.5
12b
SDRAM_SYNC_IN to Output Valid (Memory Control & Data Signals)
—
4.5
ns
1
12c
SDRAM_SYNC_IN to Output Valid (For All Others)
—
7.0
ns
1
12d
SDRAM_SYNC_IN to Output Valid (For I2C)
—
5.0
ns
1
13a
Output Hold (PCI), See Figure 13.
13a0 Tap 0, PCI_HOLD_DEL=00, [MCP,CKE]=11, 66 MHz PCI (Default)
2.0
—
ns
2,4,5
13a1 Tap 1, PCI_HOLD_DEL=01, [MCP,CKE]=10
2.5
—
13a2 Tap 2, PCI_HOLD_DEL=10, [MCP,CKE]=01, 33 MHz PCI
3.0
—
13a3 Tap 3, PCI_HOLD_DEL=11, [MCP,CKE]=00
3.5
—
13b
Output Hold (All Others)
1.0
—
ns
1
14a
PCI_SYNC_IN to Output High Impedance (For PCI)
—
14.0
ns
2,4
14b
SDRAM_SYNC_IN to Output High Impedance (For All Others)
—
4.0
ns
1
相關(guān)PDF資料
PDF描述
MPC8270CVVQLDA 32-BIT, 333 MHz, RISC PROCESSOR, PBGA480
MPC8270CZUQLDA 32-BIT, 333 MHz, RISC PROCESSOR, PBGA480
MPC8321EVRADDC 32-BIT, 266 MHz, RISC PROCESSOR, PBGA516
MPC8349EZUAJF 32-BIT, 533 MHz, RISC PROCESSOR, PBGA672
MPC850CZQ50BUR2 32-BIT, 50 MHz, RISC PROCESSOR, PBGA256
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8245RZU400D 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Part Number Specification for the MPC8245ARZUnnnX Series
MPC8245TVV266D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
MPC8245TVV300D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
MPC8245TVV333D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
MPC8245TVV350D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*