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| 型號： | MC7457RX1000NC |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 16/71頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MPU RISC 32BIT 483FCCBGA |
| 標準包裝： | 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 |
| 供應商設備封裝： | 483-FCCBGA（29x29） |
| 包裝： | 托盤 |
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Electrical and Thermal Characteristics
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 8
Freescale Semiconductor
23
The L3_CLK timing diagram is shown in Figure 7.
Figure 7. L3_CLK_OUT Output Timing Diagram
L3 clock jitter
—
± 75
—
± 75
ps
5
Notes:
1. The maximum L3 clock frequency (and minimum L3 clock period) will be system dependent. See Section 5.2.3, “L3 Clock
AC Specifications,” for an explanation that this maximum frequency is not functionally tested at speed by Freescale. The
minimum L3 clock frequency and period are fSYSCLK and tSYSCLK, respectively.
2. The nominal duty cycle of the L3 output clocks is 50% measured at midpoint voltage.
3. Maximum possible skew between L3_CLK0 and L3_CLK1. This parameter is critical to the address and control signals which
are common to both SRAM chips in the L3.
4. Maximum possible skew between L3_CLK0 and L3_ECHO_CLK1 or between L3_CLK1 and L3_ECHO_CLK3 for PB2 or
Late Write SRAM. This parameter is critical to the read data signals because the processor uses the feedback loop to latch
data driven from the SRAM, each of which drives data based on L3_CLK0 or L3_CLK1.
5. Guaranteed by design and not tested. The input jitter on SYSCLK affects L3 output clocks and the L3 address, data, and
control signals equally and, therefore, is already comprehended in the AC timing and does not have to be considered in the
L3 timing analysis. The clock-to-clock jitter shown here is uncertainty in the internal clock period caused by supply voltage
noise or thermal effects. This is also comprehended in the AC timing specifications and need not be considered in the L3
timing analysis.
6. L3 I/O voltage mode must be configured by L3VSEL as described in Table 3, and voltage supplied at GVDD must match
mode selected as specified in Table 4. See Table 22 for revision level information and part marking.
Table 10. L3_CLK Output AC Timing Specifications (continued)
At recommended operating conditions. See Table 4.
Parameter
Symbol
Device Revision (L3 I/O Voltage) 6
Unit
Notes
Rev 1.1. (All I/O Modes)
Rev 1.2 (1.5-V I/O Mode)
Rev 1.2
(1.8-, 2.5-V I/O Modes)
Min
Typ
Max
Min
Typ
Max
L3_CLK0
VM
tL3CR
tL3CF
VM
L3_CLK1
VM
tL3_CLK
tCHCL
VM
L3_ECHO_CLK1
L3_ECHO_CLK3
VM
For PB2 or Late Write:
tL3CSKW1
tL3CSKW2
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC7457RX1200PB | 制造商:Freescale Semiconductor 功能描述:A7, 1.35V +50MV/-30MV - Trays |
| MC7457RX1267LB | 制造商:Freescale Semiconductor 功能描述:MPC74XX RISC 32-BIT 0.13UM 1.267GHZ 1.5V/1.8V/2.5V 483-PIN F - Trays |
| MC7457RX1267LC | 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MC7457RX1333PB | 制造商:Freescale Semiconductor 功能描述:A7, 1.35V +50MV/-30MV - Trays |
| MC7457RX733NC | 功能描述:IC MPU RISC 32BIT 483FCCBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC74xx 標準包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點:- 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 供應商設備封裝:783-FCPBGA（29x29） 包裝:托盤 |
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