參數(shù)資料
型號(hào): MC7457VG867NC
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 867 MHz, RISC PROCESSOR, CBGA483
封裝: 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM PITCH, ROHS COMPLIANT, CERAMIC, BGA-483
文件頁數(shù): 9/73頁
文件大?。?/td> 1715K
代理商: MC7457VG867NC
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 7
Freescale Semiconductor
17
Electrical and Thermal Characteristics
Figure 3 provides the SYSCLK input timing diagram.
Figure 3. SYSCLK Input Timing Diagram
5.2.2
Processor Bus AC Specifications
Table 9 provides the processor bus AC timing specifications for the MPC7457 as defined in Figure 4 and
Figure 5. Timing specifications for the L3 bus are provided in Section 5.2.3, “L3 Clock AC
Internal PLL relock time
—100
μs7
Notes:
1. Caution: The SYSCLK frequency and PLL_CFG[0:4] settings must be chosen such that the resulting SYSCLK (bus)
frequency, CPU (core) frequency, and PLL (VCO) frequency do not exceed their respective maximum or minimum operating
frequencies. Refer to the PLL_CFG[0:4] signal description in Section 1.9.1, “PLL Configuration,” for valid PLL_CFG[0:4]
settings.
2. Assumes lightly-loaded, single-processor system; see Section 5.2.1, “Clock AC Specifications” for more information.
3. Rise and fall times for the SYSCLK input measured from 0.4 to 1.4 V.
4. Timing is guaranteed by design and characterization.
5. Guaranteed by design.
6. The SYSCLK driver’s closed loop jitter bandwidth should be less than 1.5 MHz at –3 dB.
7. Relock timing is guaranteed by design and characterization. PLL-relock time is the maximum amount of time required for PLL
lock after a stable VDD and SYSCLK are reached during the power-on reset sequence. This specification also applies when
the PLL has been disabled and subsequently re-enabled during sleep mode. Also note that HRESET must be held asserted
for a minimum of 255 bus clocks after the PLL-relock time during the power-on reset sequence.
Table 8. Clock AC Timing Specifications (continued)
At recommended operating conditions. See Table 4.
Characteristic
Symbol
Maximum Processor Core Frequency
Unit
Notes
867 MHz
1000 MHz
1200 MHz
1267 MHz
Min
Max
Min
Max
Min
Max
Min
Max
SYSCLK
VM
CVIH
CVIL
VM = Midpoint Voltage (OVDD/2)
tSYSCLK
tKR
tKF
tKHKL
相關(guān)PDF資料
PDF描述
MC7457RX1267LC 32-BIT, 1267 MHz, RISC PROCESSOR, CBGA483
MC7457VG733NC 32-BIT, 733 MHz, RISC PROCESSOR, CBGA483
MC74ACT125DR2 ACT SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, PDSO14
MC74AC125DR2 AC SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, PDSO14
MC74ACT125DTR2 ACT SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, PDSO14
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MC74AC00 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:QUAD 2-INPUT NAND GATE
MC74AC00D 功能描述:邏輯門 2-6V Quad 2-Input RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量(輸入/輸出):2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel
MC74AC00DG 功能描述:邏輯門 2-6V Quad 2-Input NAND RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量(輸入/輸出):2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel