MPC8241EC：PowerPC MPC603E核心与PCI桥接器的结合

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"MPC8241EC是Freescale Semiconductor公司的一款集成处理器，结合了PowerPC™ MPC603E核心和PCI桥接器，适用于快速构建使用PCI和其他标准接口外围设备的系统。该芯片还包含高性能内存控制器，支持多种类型的ROM和SDRAM。作为MPC603e处理器核心的系统级支持产品系列的第二款，MPC8241旨在提供行业标准接口的支持。硬件规格详细描述了基于MPC8245设计的MPC8241的相关电气和物理特性。关于处理器的功能特性，可以参考MPC8245 Integrated Processor Reference Manual (MPC8245UM)。欲了解文档的错误或更新，可访问文档背面列出的网站。 1. 概述 MPC8241集成处理器由外围逻辑块和一个32位超标量MPC603e核心组成。如图1所示，这种结构使得处理器能够有效地处理并行任务，同时与各种标准接口的外围设备无缝配合。 2. 特性 MPC8241的主要特性可能包括但不限于： - 集成了PowerPC MPC603e核心，提供高效能计算能力 - 支持PCI接口，兼容广泛的标准外设 - 内置高性能内存控制器，支持多种类型存储器，如ROM和SDRAM - 提供系统级别的行业标准接口支持 3. 通用参数这部分详细列出了MPC8241的电气和物理参数，例如电源电压、工作温度范围、I/O接口速度等，这些参数对于系统设计者来说至关重要，以便确保芯片在特定环境下的稳定运行。 4. ... （此处省略的内容可能包括更多技术细节，如引脚配置、时钟管理、功耗分析、封装信息等） 5. 应用领域 MPC8241适合于需要高性能处理能力和灵活接口的嵌入式系统，可能的应用场景包括服务器、工业自动化、通信设备、网络路由器和高端消费电子产品等。总结起来，MPC8241EC是一款结合了高性能CPU核心和多标准接口支持的微处理器，为系统设计师提供了强大的平台来构建复杂而高效的嵌入式解决方案。通过其兼容性和扩展性，MPC8241能够在不断发展的技术环境中满足多样化的应用需求。"

MPC8241 Integrated Processor Hardware Specifications, Rev. 10

10 Freescale Semiconductor

Electrical and Thermal Characteristics

Figure 5. Maximum AC Waveforms for 5-V Signaling

4.2 DC Electrical Characteristics

Table 3 provides the DC electrical characteristics for the MPC8241 at recommended operating conditions.

Table 3. DC Electrical Specifications

Characteristics Conditions Symbol Min Max Unit Notes

Input high voltage PCI only, except

PCI_SYNC_IN

0.65 × GV

_OV

Input low voltage PCI only, except

PCI_SYNC_IN

—0.3 × GV

_OV

Input high voltage All other pins, including

PCI_SYNC_IN

(GV

_OV

= 3.3 V)

2.0 3.3 V

Input low voltage All inputs, including

PCI_SYNC_IN

GND/GNDRING 0.8 V 2

Input leakage current for

pins using DRV_PCI driver

0.5 V

≤ V

≤ 2.7 V

@ LV

= 4.75 V

— ±70 µA 3

Input leakage current

all

others

= 3.6 V

_OV

≤ 3.465 V

— ±10 µA 3

Output high voltage I

= driver dependent

(GV

_OV

= 3.3 V)

2.4 — V 4

Output low voltage I

= driver dependent

(GV

_OV

= 3.3 V)

—0.4V4

Undervoltage

Waveform

Overvoltage

Waveform

11 ns

(Min)

+11 V

11 V p-to-p

(Min)

4 ns

(Max)

–5.5 V

10.75 V p-to-p

(Min)

62.5 ns

+5.25 V

0 V

4 ns

(Max)

MPC8241 Integrated Processor Hardware Specifications, Rev. 10

Freescale Semiconductor 11

Electrical and Thermal Characteristics

4.2.1 Output Driver Characteristics

Table 4 provides information on the characteristics of the output drivers referenced in Table 16. The values

are preliminary estimates from an IBIS model and are not tested.

Capacitance V

= 0 V, f = 1 MHz C

— 16.0 pF

Notes:

1. See Table 16 for pins with internal pull-up resistors.

2. All grounded pins are connected together.

3. Leakage current is measured on input and output pins in the high-impedance state. The leakage current is measured for

nominal GV

_OV

/LV

and V

or both GV

_OV

/LV

and V

must vary in the same direction.

4. See Ta bl e 4 for the typical drive capability of a specific signal pin based on the type of output driver associated with that pin

as listed in Ta ble 1 6 .

Table 4. Drive Capability of MPC8241 Output Pins

5, 6

Driver Type

Programmable Output

Impedance

(Ω)

Supply Voltage I

Unit Notes

DRV_STD_MEM 20 (default) GV

_OV

= 3.3 V 36.6 18.0 mA 2, 4

40 18.6 9.2 mA 2, 4

DRV_PCI 20 12.0 12.4 mA 1, 3

40 (default) 6.1 6.3 mA 1, 3

DRV_MEM_CTRL

DRV_PCI_CLK

DRV_MEM_CLK

6 (default) 89.0 42.3 mA 2, 4

20 36.6 18.0 mA 2, 4

40 18.6 9.2 mA 2, 4

Notes:

1. For DRV_PCI, I

read from the IBIS listing in the pull-up mode, I(Min) column, at the 0.33-V label by interpolating between

the 0.3- and 0.4-V table entries current values which corresponds to the PCI V

= 2.97 = 0.9 × GV

_OV

(GV

_OV

= 3.3 V) where table entry voltage = GV

_OV

– PCI V

2. For all others with GV

_ OV

= 3.3 V, I

read from the IBIS listing in the pull-up mode, I(Min) column, at the 0.9-V table

entry which corresponds to the V

= 2.4 V where table entry voltage = GV

_OV

– V

3. For DRV_PCI, I

read from the IBIS listing in the pull-down mode, I(Min) column, at 0.33 V = PCI V

= 0.1 × GV

_OV

(GV

_OV

= 3.3 V) by interpolating between the 0.3- and 0.4-V table entries.

4. For all others with GV

_OV

= 3.3 V, I

read from the IBIS listing in the pull-down mode, I(Min) column, at the 0.4-V table

entry.

5. See driver bit details for output driver control register (0x73) in the MPC8245 Integrated Processor Reference Manual.

6. See Chip Errata No. 19 in the MPC8245/MPC8241 Integrated Processor Chip Errata.

Table 3. DC Electrical Specifications (continued)

Characteristics Conditions Symbol Min Max Unit Notes

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