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参数资料
| 型号： | MPC745BPX350LE |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 350 MHz, RISC PROCESSOR, PBGA255 |
| 封装： | 21 X 21 MM, 2.80 MM HEIGHT, 1.27 MM PITCH, PLASTIC, BGA-255 |
| 文件页数： | 7/60页 |
| 文件大小： | 1559K |
| 代理商： | MPC745BPX350LE |
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MPC755 RISC Microprocessor Hardware Specifications, Rev. 7.0
Freescale Semiconductor
15
Electrical and Thermal Characteristics
Table 10. Processor Bus AC Timing Specifications 1
At recommended operating conditions (see Table 3)
Parameter
Symbol
All Speed Grades
Unit
Notes
Min
Max
Setup times: All inputs
tIVKH
2.5
—
ns
Input hold times: TLBISYNC, MCP, SMI
tIXKH
0.6
—
ns
6
Input hold times: All inputs, except TLBISYNC, MCP, SMI
tIXKH
0.2
—
ns
6
Valid times: All outputs
tKHOV
—4.1
ns
Output hold times: All outputs
tKHOX
1.0
—
ns
SYSCLK to output enable
tKHOE
0.5
—
ns
2
SYSCLK to output high impedance (all except ABB, ARTRY, DBB)tKHOZ
—6.0
ns
2
SYSCLK to ABB, DBB high impedance after precharge
tKHABPZ
—1.0
tsysclk
2, 3, 4
Maximum delay to ARTRY precharge
tKHARP
—1
tsysclk
2, 3, 5
SYSCLK to ARTRY high impedance after precharge
tKHARPZ
—2
tsysclk
2, 3, 5
Notes:
1. Revisions prior to Rev. 2.8 (Rev. E) were limited in performance and did not conform to this specification. For more
information, refer to Section 10.2, “Part Numbers Not Fully Addressed by This Document.”
2. Guaranteed by design and characterization.
3. tsysclk is the period of the external clock (SYSCLK) in ns. The numbers given in the table must be multiplied by the
period of SYSCLK to compute the actual time duration (in ns) of the parameter in question.
4. Per the 60x bus protocol, TS, ABB, and DBB are driven only by the currently active bus master. They are asserted
low, then precharged high before returning to high-Z as shown in Figure 6. The nominal precharge width for TS,
ABB, or DBB is 0.5
× t
sysclk, that is, less than the minimum tsysclk period, to ensure that another master asserting
TS, ABB, or DBB on the following clock will not contend with the precharge. Output valid and output hold timing is
tested for the signal asserted. Output valid time is tested for precharge. The high-Z behavior is guaranteed by
design.
5. Per the 60x bus protocol, ARTRY can be driven by multiple bus masters through the clock period immediately
following AACK. Bus contention is not an issue since any master asserting ARTRY will be driving it low. Any master
asserting it low in the first clock following AACK will then go to high-Z for one clock before precharging it high during
the second cycle after the assertion of AACK. The nominal precharge width for ARTRY is 1.0 tsysclk; that is, it should
be high-Z as shown in Figure 6 before the first opportunity for another master to assert ARTRY. Output valid and
output hold timing is tested for the signal asserted. Output valid time is tested for precharge. The high-Z and
precharge behavior is guaranteed by design.
6. MCP and SRESET must be held asserted for a minimum of two bus clock cycles; INT and SMI should be held
asserted until the exception is taken; CKSTP_IN must be held asserted until the system has been reset. See the
MPC750 RISC Microprocessor Family User’s Manual for more information.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC745BVT300LE | 功能描述:微处理器 - MPU GF REV2.8105C RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC745BVT350LE | 功能描述:微处理器 - MPU GF REV2.8105C RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC745CPX350LE | 功能描述:微处理器 - MPU GF REV 2.8 105C 6W RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC745CPX350LE | 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU 350MHZ 255-FCPBGA |
| MPC745CVT350LE | 功能描述:微处理器 - MPU GF REV2.8@6W RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
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